Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

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Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES


(a)	The following documents are filed as a part of this report:

(1) Exelon



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedules:

		Schedule I—Condensed Financial Information of Parent (Exelon Corporate) at December 31, 2018 and 2017 and for the Years Ended December 31, 2018, 2017 and 2016

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto.

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Condensed Statements of Operations and Other Comprehensive Income



	For the Years Ended December 31,
(In millions)	2018			2017			2016
Operating expenses
Operating and maintenance	$	(5	)	$	10		$	221
Operating and maintenance from affiliates	9			25			51
Other	4			4			4
Total operating expenses	8			39			276
Operating loss	(8		)	(39		)	(276		)
Other income and (deductions)
Interest expense, net	(312		)	(315		)	(312		)
Equity in earnings of investments	2,188			4,414			1,508
Interest income from affiliates, net	42			40			39
Other, net	3			1			7
Total other income	1,921			4,140			1,242
Income before income taxes	1,913			4,101			966
Income taxes	(97		)	315			(155		)
Net income	$	2,010		$	3,786		$	1,121
Other comprehensive income (loss)
Pension and non-pension postretirement benefit plans:
Prior service benefit reclassified to periodic costs	$	(66	)	$	(56	)	$	(48	)
Actuarial loss reclassified to periodic cost	247			197			184
Pension and non-pension postretirement benefit plan valuation adjustment	(143		)	10			(181		)
Unrealized gain on cash flow hedges	12			3			2
Unrealized gain on marketable securities	—			6			1
Unrealized gain (loss) on equity investments	1			6			(4		)
Unrealized (loss) gain on foreign currency translation	(10		)	7			10
Other comprehensive income (loss)	41			173			(36		)
Comprehensive income	$	2,051		$	3,959		$	1,085

See the Notes to Financial Statements

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Condensed Statements of Cash Flows



	For the Years Ended December 31,
(In millions)	2018			2017			2016
Net cash flows provided by operating activities	$	2,581		$	1,921		$	1,029
Cash flows from investing activities
Changes in Exelon intercompany money pool	1			(129		)	1,390
Investment in affiliates	(1,236		)	(1,717		)	(1,757		)
Acquisition of business	—			—			(6,962		)
Other investing activities	—			(5		)	5
Net cash flows used in investing activities	(1,235		)	(1,851		)	(7,324		)
Cash flows from financing activities
Issuance of long-term debt	—			—			1,800
Proceeds from short-term borrowings with maturities greater than 90 days	—			500			—
Retirement of long-term debt	—			(569		)	(46		)
Common stock issued from treasury stock	—			1,150			—
Dividends paid on common stock	(1,332		)	(1,236		)	(1,166		)
Proceeds from employee stock plans	105			150			55
Other financing activities	(4		)	(9		)	(20		)
Net cash flows (used in) provided by financing activities	(1,231		)	(14		)	623
Increase (Decrease) in cash, cash equivalents and restricted cash	115			56			(5,672		)
Cash, cash equivalents and restricted cash at beginning of period	74			18			5,690
Cash, cash equivalents and restricted cash at end of period	$	189		$	74		$	18

See the Notes to Financial Statements

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Condensed Balance Sheets



	December 31,
(In millions)	2018		2017
ASSETS
Current assets
Cash and cash equivalents	$	189	$	74
Accounts receivable, net
Other accounts receivable	48		431
Accounts receivable from affiliates	44		33
Notes receivable from affiliates	216		217
Regulatory assets	182		284
Other	4		4
Total current assets	683		1,043
Property, plant and equipment, net	48		50
Deferred debits and other assets
Regulatory assets	3,742		3,697
Investments in affiliates	40,448		39,311
Deferred income taxes	1,455		1,431
Notes receivable from affiliates	898		910
Other	235		234
Total deferred debits and other assets	46,778		45,583
Total assets	$	47,509	$	46,676

See the Notes to Financial Statements

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Condensed Balance Sheets



	December 31,
(In millions)	2018			2017
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Short-term borrowings	$	500		$	500
Accounts payable	1			2
Accrued expenses	184			99
Payables to affiliates	360			360
Regulatory liabilities	15			16
Pension obligations	63			65
Other	14			46
Total current liabilities	1,137			1,088
Long-term debt	7,147			7,161
Deferred credits and other liabilities
Regulatory liabilities	32			15
Pension obligations	7,795			7,792
Non-pension postretirement benefit obligations	199			322
Deferred income taxes	233			220
Other	202			180
Total deferred credits and other liabilities	8,461			8,529
Total liabilities	16,745			16,778
Commitments and contingencies
Shareholders’ equity
Common stock (No par value, 2,000 shares authorized, 968 shares and 963 shares outstanding at December 31, 2018 and 2017, respectively)	19,116			18,966
Treasury stock, at cost (2 shares at December 31, 2018 and 2017)	(123		)	(123		)
Retained earnings	14,766			14,081
Accumulated other comprehensive loss, net	(2,995		)	(3,026		)
Total shareholders’ equity	30,764			29,898
Total liabilities and shareholders’ equity	$	47,509		$	46,676

See the Notes to Financial Statements

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Notes to Financial Statements

Basis of Presentation

Exelon Corporate is a holding company that conducts substantially all of its business operations through its subsidiaries. These condensed financial statements and related footnotes have been prepared in accordance with Rule 12-04, Schedule I of Regulation S-X. These statements should be read in conjunction with the consolidated financial statements and notes thereto of Exelon Corporation.

Exelon Corporate owns 100% of all of its significant subsidiaries, either directly or indirectly, except for Commonwealth Edison Company (ComEd), of which Exelon Corporate owns more than 99%, and BGE, of which Exelon owns 100% of the common stock but none of BGE’s preferred stock. BGE redeemed all of its outstanding preferred stock in 2016.

Mergers

On March 23, 2016, Exelon completed the merger contemplated by the Merger Agreement among Exelon, Purple Acquisition Corp., a wholly owned subsidiary of Exelon (Merger Sub) and Pepco Holdings, Inc. (PHI). As a result of that merger, Merger Sub was merged into PHI (the PHI Merger) with PHI surviving as a wholly owned subsidiary of Exelon and Exelon Energy Delivery Company, LLC (EEDC), a wholly owned subsidiary of Exelon which also owns Exelon's interests in ComEd, PECO and BGE (through a special purpose subsidiary in the case of BGE). See Note 5—Mergers, Acquisitions and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information on the PHI Merger.

Debt and Credit Agreements

Short-Term Borrowings

Exelon Corporate meets its short-term liquidity requirements primarily through the issuance of commercial paper. Exelon Corporate had no commercial paper borrowings at both December 31, 2018 and December 31, 2017.

Short-Term Loan Agreements

On March 23, 2017, Exelon Corporate entered into a $500 million term loan agreement which expired on March 22, 2018. The loan agreement was renewed on March 22, 2018 and will expire on March 21, 2019. Pursuant to the loan agreement, loans made thereunder bear interest at a variable rate equal to LIBOR plus 1% and all indebtedness thereunder is unsecured. The loan agreement is reflected in Exelon’s Consolidated Balance Sheet within Short-Term borrowings.

Credit Agreements

On May 26, 2016, Exelon Corporate amended its syndicated revolving credit facility with aggregate bank commitments of $600 million through May 26, 2021. On May 26, 2018, Exelon Corporate had its maturity date extended to May 26, 2023. As of December 31, 2018, Exelon Corporation had available capacity under those commitments of $591 million. See Note 13—Debt and Credit Agreements of the Combined Notes to Consolidated Financial Statements for additional information regarding Exelon Corporation’s credit agreement.

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Notes to Financial Statements

Long-Term Debt

The following tables present the outstanding long-term debt for Exelon Corporate as of December 31, 2018 and December 31, 2017:



					Maturity Date	December 31,
	Rates				2018			2017
Long-term debt
Junior subordinated notes			3.50	%	2022	$	1,150		$	1,150
Senior unsecured notes(a)	2.45	%	7.60	%	2020 - 2046	5,889			5,889
Total long-term debt						7,039			7,039
Unamortized debt discount and premium, net						(7		)	(8		)
Unamortized debt issuance costs						(47		)	(49		)
Fair value adjustment of consolidated subsidiary						162			179
Long-term debt						$	7,147		$	7,161


(a)	Senior unsecured notes include mirror debt that is held on both Generation and Exelon Corporation's balance sheets.

The debt maturities for Exelon Corporate for the periods 2019, 2020, 2021, 2022, 2023 and thereafter are as follows:



2019	$	—
2020	1,450
2021	300
2022	1,150
2023	—
Remaining years	4,139
Total long-term debt	$	7,039

Commitments and Contingencies

See Note 22—Commitments and Contingencies of the Combined Notes to Consolidated Financial Statements for Exelon Corporate’s commitments and contingencies related to environmental matters and fund transfer restrictions.

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Notes to Financial Statements

Related Party Transactions

The financial statements of Exelon Corporate include related party transactions as presented in the tables below:



	For the Years Ended December 31,
(In millions)	2018			2017			2016
Operating and maintenance from affiliates:
BSC(a)	$	11		$	23		$	51
Other	(2		)	2			—
Total operating and maintenance from affiliates:	$	9		$	25		$	51
Interest income from affiliates, net:
Generation	$	36		$	37		$	39
BSC	4			3			—
Exelon Energy Delivery Company, LLC(b)	$	2		$	—		$	—
Total interest income from affiliates, net:	$	42		$	40		$	39
Equity in earnings (losses) of investments:
Exelon Energy Delivery Company, LLC(b)	$	1,835		$	1,670		$	1,041
PCI	(17		)	1			6
BSC	—			1			1
UII, LLC	—			41			(9		)
Exelon Transmission Company, LLC	1			(10		)	(13		)
Exelon Enterprise	—			1			(1		)
Generation	369			2,710			483
Total equity in earnings of investments:	$	2,188		$	4,414		$	1,508

Cash contributions received from affiliates	$	2,302		$	1,879		$	1,912

Exelon Corporation and Subsidiary Companies

Schedule I – Condensed Financial Information of Parent (Exelon Corporate)

Notes to Financial Statements



	December 31,
(in millions)	2018			2017
Accounts receivable from affiliates (current):
BSC(a)	$	13		$	1
Generation	17			21
ComEd	4			3
PECO	2			1
BGE	2			1
PHISCO	6			6
Total accounts receivable from affiliates (current):	$	44		$	33
Notes receivable from affiliates (current):
BSC(a)	$	116		$	217
Generation(c)	100			—
Total notes receivable from affiliates (current):	$	216		$	217
Investments in affiliates:
BSC(a)	$	197		$	196
Exelon Energy Delivery Company, LLC(b)	26,702			25,082
PCI	61			78
UII, LLC	268			268
Exelon Transmission Company, LLC	1			1
Voluntary Employee Beneficiary Association trust	(1		)	(4		)
Exelon Enterprises	22			22
Generation	13,204			13,674
Other	(6		)	(6		)
Total investments in affiliates:	$	40,448		$	39,311
Notes receivable from affiliates (non-current):
Generation(c)	$	898		$	910
Accounts payable to affiliates (current):
UII, LLC	$	360		$	360


(a)	Exelon Corporate receives a variety of corporate support services from BSC, including legal, human resources, financial, information technology and supply management services. All services are provided at cost, including applicable overhead.


(b)	Exelon Energy Delivery Company, LLC consists of ComEd, PECO, BGE, PHI, Pepco, DPL and ACE.


(c)	In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes payable included in Long-Term Debt to affiliates in Generation’s Consolidated Balance Sheets and intercompany notes receivable at Exelon Corporate, which are eliminated in consolidation in Exelon’s Consolidated Balance Sheets.

(c)

In connection with the debt obligations assumed by Exelon as part of the Constellation merger, Exelon and subsidiaries of Generation (former Constellation subsidiaries) assumed intercompany loan agreements that mirror the terms and amounts of the third-party debt obligations of Exelon, resulting in intercompany notes payable included in Long-Term Debt to affiliates in Generation’s Consolidated Balance Sheets and intercompany notes receivable at Exelon Corporate, which are eliminated in consolidation in Exelon’s Consolidated Balance Sheets.

Exelon Corporation and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C						Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts				Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts(a)	$	322	$	159	$	35		(c)	$	197	(e)	$	319
Deferred tax valuation allowance	37		—		5				7			35
Reserve for obsolete materials	174		25		(31		)	(d)	12			156
For the year ended December 31, 2017
Allowance for uncollectible accounts(a)	$	334	$	126	$	27		(c)	$	165	(e)	$	322
Deferred tax valuation allowance	20		—		17				—			37
Reserve for obsolete materials	113		56		10				5			174
For the year ended December 31, 2016
Allowance for uncollectible accounts(a)	$	284	$	162	$	99		(b)(c)	$	211	(e)	$	334
Deferred tax valuation allowance	13		—		10			(b)	3			20
Reserve for obsolete materials	105		12		1			(b)	5			113


(a)	Excludes the non-current allowance for uncollectible accounts related to PECO’s installment plan receivables of $13 million, $15 million, and $23 million for the years ended December 31, 2018, 2017 and 2016, respectively.


(b)	Primarily represents the addition of PHI's results as of March 23, 2016, the date of the merger


(c)	Includes charges for late payments and non-service receivables.


(d)	Primarily reflects the reclassification of assets as held for sale.


(e)	Write-off of individual accounts receivable.

Exelon Generation Company, LLC and Subsidiary Companies

(2) Generation



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Exelon Generation Company, LLC and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C						Column D		Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts				Deductions		Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	114	$	44	$	4			$	58	$	104
Deferred tax valuation allowance	23		—		3				—		26
Reserve for obsolete materials	166		20		(32		)	(a)	9		145
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	91	$	34	$	—			$	11	$	114
Deferred tax valuation allowance	9		—		14				—		23
Reserve for obsolete materials	106		51		9				—		166
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	77	$	19	$	3			$	8	$	91
Deferred tax valuation allowance	11		—		—				2		9
Reserve for obsolete materials	102		6		—				2		106


(a)	Primarily reflects the reclassification of assets as held for sale.

Commonwealth Edison Company and Subsidiary Companies

(3) ComEd



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Shareholders’ Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Commonwealth Edison Company and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	73	$	44	$	23	(a)	$	59	(b)	$	81
Reserve for obsolete materials	5		3		1			3			6
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	70	$	39	$	20	(a)	$	56	(b)	$	73
Reserve for obsolete materials	4		3		1			3			5
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	75	$	45	$	23	(a)	$	73	(b)	$	70
Reserve for obsolete materials	3		4		1			4			4


(a)	Primarily charges for late payments and non-service receivables.


(b)	Write-off of individual accounts receivable.

PECO Energy Company and Subsidiary Companies

(4) PECO



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

PECO Energy Company and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts(a)	$	56	$	33	$	3	(b)	$	31	(c)	$	61
Reserve for obsolete materials	2		—		—			—			2
For the year ended December 31, 2017
Allowance for uncollectible accounts(a)	$	61	$	26	$	4	(b)	$	35	(c)	$	56
Reserve for obsolete materials	2		—		—			—			2
For the year ended December 31, 2016
Allowance for uncollectible accounts(a)	$	83	$	32	$	7	(b)	$	61	(c)	$	61
Reserve for obsolete materials	1		1		—			—			2


(a)	Excludes the non-current allowance for uncollectible accounts related to PECO’s installment plan receivables of $13 million, $15 million, and $23 million for the years ended December 31, 2018, 2017, and 2016, respectively.


(b)	Primarily charges for late payments.


(c)	Write-off of individual accounts receivable.

Baltimore Gas and Electric Company and Subsidiary Companies

(5) BGE



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Baltimore Gas and Electric Company and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	24	$	10	$	(2	)	$	12	(a)	$	20
Deferred tax valuation allowance	1		—		—			—			1
Reserve for obsolete materials	—		1		—			—			1
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	32	$	8	$	(3	)	$	13	(a)	$	24
Deferred tax valuation allowance	1		—		—			—			1
Reserve for obsolete materials	—		—		—			—			—
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	49	$	1	$	9		$	27	(a)	$	32
Deferred tax valuation allowance	1		—		—			—			1
Reserve for obsolete materials	—		—		—			—			—


(a)	Write-off of individual accounts receivable.

Pepco Holdings LLC and Subsidiary Companies

(6) PHI



(i)		Successor Company Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income (Loss) for the Years Ended December 31, 2018 and 2017 and for the Period March 24, 2016 to December 31, 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018 and 2017 and for the Period March 24, 2016 to December 31, 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Equity for the Years Ended December 31, 2018 and 2017 and for the Period March 24, 2016 to December 31, 2016

		Notes to Consolidated Financial Statements

(ii)		Predecessor Company Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 13, 2017 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income for the Period January 1, 2016 to March 23, 2016

		Consolidated Statements of Cash Flows for the Period January 1, 2016 to March 23, 2016

		Consolidated Statements of Changes in Equity for the Period January 1, 2016 to March 23, 2016

		Notes to Consolidated Financial Statements

(iii)		Successor Financial Statement Schedule:

		Schedule II – Valuation and Qualifying Accounts - For the Years Ended December 31, 2018 and 2017 and the Period March 24, 2016 to December 31, 2016

(iv)		Predecessor Financial Statement Schedule:

		Schedule II – Valuation and Qualifying Accounts - For the Period January 1, 2016 to March 23, 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Pepco Holdings LLC and Subsidiary Companies

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C						Column D				Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts				Deductions				Balance at End of Period
	(in millions)
For the Year Ended December 31, 2018 (Successor)
Allowance for uncollectible accounts	$	55	$	28	$	7		(a)	$	37		(b)	$	53
Deferred tax valuation allowance	13		—		2				7				8
Reserve for obsolete materials	2		—		—				—				2
For the Year Ended December 31, 2017 (Successor)
Allowance for uncollectible accounts	$	80	$	19	$	6		(a)	$	50		(b)	$	55
Deferred tax valuation allowance	10		—		3				—				13
Reserve for obsolete materials	2		2		—				2				2
March 24, 2016 to December 31, 2016 (Successor)
Allowance for uncollectible accounts	$	52	$	65	$	5		(a)	$	42		(b)	$	80
Deferred tax valuation allowance	63		—		(53		)		—				10
Reserve for obsolete materials	—		1		—				(1		)		2
January 1, 2016 to March 23, 2016 (Predecessor)
Allowance for uncollectible accounts	$	56	$	16	$	2		(a)	$	22		(b)	$	52
Deferred tax valuation allowance	63		—		—				—				63
Reserve for obsolete materials	—		—		—				—				—


(a)	Primarily charges for late payments.


(b)	Write-off of individual accounts receivable.

Potomac Electric Power Company

(7) Pepco



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Statements of Operations and Comprehensive Income for the Years Ended December 31, 2018, 2017 and 2016

		Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Balance Sheets at December 31, 2018 and 2017

		Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Potomac Electric Power Company

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	21	$	11	$	3	(a)	$	14	(b)	$	21
Reserve for obsolete materials	1		—		—			—			1
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	29	$	8	$	2	(a)	$	18	(b)	$	21
Reserve for obsolete materials	1		1		—			1			1
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	17	$	29	$	3	(a)	$	20	(b)	$	29
Reserve for obsolete materials	—		3		—			2			1


(a)	Primarily charges for late payments.


(b)	Write-off of individual accounts receivable.

Delmarva Power & Light Company

(8) DPL



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Statements of Operations and Comprehensive Income (Loss) for the Years Ended December 31, 2018, 2017 and 2016

		Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Balance Sheets at December 31, 2018 and 2017

		Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Delmarva Power & Light Company

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	16	$	6	$	2	(a)	$	11	(b)	$	13
Reserve for obsolete materials	—		—		—			—			—
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	24	$	3	$	2	(a)	$	13	(b)	$	16
Reserve for obsolete materials	—		1		—			1			—
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	17	$	23	$	2	(a)	$	18	(b)	$	24
Reserve for obsolete materials	—		1		—			1			—


(a)	Primarily charges for late payments.


(b)	Write-off of individual accounts receivable.

Atlantic City Electric Company and Subsidiary Company

(9) ACE



(i)		Financial Statements (Item 8):

		Report of Independent Registered Public Accounting Firm dated February 8, 2019 of PricewaterhouseCoopers LLP

		Consolidated Statements of Operations and Comprehensive Income (Loss) for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Statements of Cash Flows for the Years Ended December 31, 2018, 2017 and 2016

		Consolidated Balance Sheets at December 31, 2018 and 2017

		Consolidated Statements of Changes in Shareholder's Equity for the Years Ended December 31, 2018, 2017 and 2016

		Notes to Consolidated Financial Statements

(ii)		Financial Statement Schedule:

		Schedule II—Valuation and Qualifying Accounts for the Years Ended December 31, 2018, 2017 and 2016

		Schedules not included are omitted because of the absence of conditions under which they are required or because the required information is provided in the consolidated financial statements, including the notes thereto

Atlantic City Electric Company and Subsidiary Company

Schedule II – Valuation and Qualifying Accounts



Column A	Column B		Column C					Column D			Column E
			Additions and adjustments
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts			Deductions			Balance at End of Period
	(in millions)
For the year ended December 31, 2018
Allowance for uncollectible accounts	$	18	$	11	$	2	(a)	$	12	(b)	$	19
Reserve for obsolete materials	1		—		—			—			1
For the year ended December 31, 2017
Allowance for uncollectible accounts	$	27	$	8	$	2	(a)	$	19	(b)	$	18
Reserve for obsolete materials	1		—		—			—			1
For the year ended December 31, 2016
Allowance for uncollectible accounts	$	17	$	32	$	2	(a)	$	24	(b)	$	27
Reserve for obsolete materials	—		1		—			—			1


(a)	Primarily charges for late payments.


(b)	Write-off of individual accounts receivable.

Exhibits required by Item 601 of Regulation S-K:

Certain of the following exhibits are incorporated herein by reference under Rule 12b-32 of the Securities and Exchange Act of 1934, as amended. Certain other instruments which would otherwise be required to be listed below have not been so listed because such instruments do not authorize securities in an amount which exceeds 10% of the total assets of the applicable registrant and its subsidiaries on a consolidated basis and the relevant registrant agrees to furnish a copy of any such instrument to the Commission upon request.



Exhibit No.	Description

2-1	Agreement and Plan of Merger dated as of April 28, 2011 by and among Exelon Corporation, Bolt Acquisition Corporation and Constellation Energy Group, Inc. (File No. 001-16169, Form 8-K dated April 28, 2011, Exhibit No. 2-1).

2-2	Distribution and Assignment Agreement, dated as of March 12, 2012, by and among Exelon Corporation, Constellation Energy Group, Inc. and RF HoldCo LLC (File No. 001-16169, Form 8-K dated March 14, 2012, Exhibit No. 2-3).

2-3	Contribution and Assignment Agreement, dated as of March 12, 2012, by and among Exelon Corporation, Exelon Energy Delivery Company, LLC and RF HoldCo LLC (File No. 001-16169, Form 8-K dated March 14, 2012, Exhibit No. 2-4).

2-4	Contribution Agreement, dated as of March 12, 2012, by and among Exelon Corporation, Exelon Ventures Company, LLC and Exelon Generation Company, LLC (File No. 001-16169, Form 8-K dated March 14, 2012, Exhibit No. 2-5).

2-5	Purchase Agreement dated as of August 8, 2012 by and between Constellation Power Source Generation, Inc. and Raven Power Holdings, LLC. (File No. 333-85496, Form 10-Q for the quarter ended September 30, 2012, Exhibit 2-1).

2-6	Master Agreement, dated as of October 26, 2010, by and between Electricite de France, S.A. and Constellation Energy Group, Inc. (Designated as Exhibit No. 2.1 to the Current Report on Form 8-K dated November 1, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

2-7	Put Termination Agreement dated as of November 3, 2010, by and among EDF Inc. (formerly known as EDF Development, Inc.), E.D.F. International S.A., Constellation Nuclear, LLC, and Constellation Energy Nuclear Group, LLC. (Designated as Exhibit No. 2.1 to the Current Report on Form 8-K dated November 8, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

2-8	Contribution Agreement, dated as of February 4, 2010, by and among Constellation Energy Group, Inc., Baltimore Gas and Electric Company and RF HoldCo LLC. (Designated as Exhibit No. 99.2 to the Current Report on Form 8-K dated February 4, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

2-9	Purchase Agreement, dated as of February 4, 2010, by and between RF HoldCo LLC and GSS Holdings (Baltimore Gas and Electric Company Utility), Inc. (Designated as Exhibit No. 99.3 to the Current Report on Form 8-K dated February 4, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

2-10-1	Agreement and Plan of Merger, dated as of April 29, 2014, by and among Exelon Corporation, Pepco Holdings, Inc. and Purple Acquisition Corp. (File No. 001-16169, Form 8-K dated April 30, 2014, Exhibit 2.1).

2-10-2	Amended and Restated Agreement and Plan of Merger, dated as of July 18, 2014, among Pepco Holdings, Inc., Exelon Corporation and Purple Acquisition Corp. (File No. 001-16169, Form 8-K dated July 21, 2014, Exhibit 2.1).



Exhibit No.	Description
2-10-3	Subscription Agreement for Series A Non-Voting Non-Convertible Preferred Stock, dated as of April 29, 2014, by and between Pepco Holdings, Inc. and Exelon Corporation (File No. 001-16169, Form 8-K dated April 30, 2014, Exhibit 2.2).

2-10-4	Letter Agreement, dated March 7, 2016, among Pepco Holdings, Inc., Exelon Corporation and Purple Acquisition Corp. (File No. 001-31403, Form 8-K dated March 7, 2016, Exhibit 2)

3-1	Amended and Restated Articles of Incorporation of Exelon Corporation, as amended July 24, 2018 (File No. 001-16169, Form 8-K dated July 27, 2018, Exhibit 3.1).

3-2	Exelon Corporation Amended and Restated Bylaws, as amended on July 24, 2018 (File No. 001-16169, Form 8-K dated July 27, 2018, Exhibit 3.2).



3-3	Certificate of Formation of Exelon Generation Company, LLC (Registration Statement No. 333-85496, Form S-4, Exhibit 3-1).

3-4	First Amended and Restated Operating Agreement of Exelon Generation Company, LLC executed as of January 1, 2001 (File No. 333-85496, 2003 Form 10-K, Exhibit 3-8).

3-5	Restated Articles of Incorporation of Commonwealth Edison Company Effective February 20, 1985, including Statements of Resolution Establishing Series, relating to the establishment of three new series of Commonwealth Edison Company preference stock known as the “$9.00 Cumulative Preference Stock,” the “$6.875 Cumulative Preference Stock” and the “$2.425 Cumulative Preference Stock” (File No. 1-1839, 1994 Form 10-K, Exhibit 3-2).

3-6	Commonwealth Edison Company Amended and Restated By-Laws, Effective January 23, 2006 As Further Amended January 28, 2008 and July 27, 2009. (File No. 001-1839, Form 8-K dated July 27, 2009, Exhibit 3.1).

3-7	Amended and Restated Articles of Incorporation of PECO Energy Company (File No. 1-01401, 2000 Form 10-K, Exhibit 3-3).

3-8	PECO Energy Company Amended Bylaws (File 000-16844, Form 8-K dated May 6, 2009, Exhibit 99.1).

3-9	Articles of Amendment to the Charter of Baltimore Gas and Electric Company as of February 2, 2010. (Designated as Exhibit No. 3.1 to the Current Report on Form 8-K dated February 4, 2010, filed by Baltimore Gas and Electric Company, File No. 1-1910).

3-10	Articles of Restatement to the Charter of Baltimore Gas and Electric Company, restated as of August 16, 1996. (Designated as Exhibit No. 3 to the Quarterly Report on Form 10-Q for the quarter ended September 30, 1996, filed by Baltimore Gas and Electric Company, File No. 1-1910).

3-11	Bylaws of Baltimore Gas and Electric Company, as amended and restated as of May 10, 2012. (File No. 1-16169, 2013 Form 10-K, Exhibit 3-11).

3-12	Operating Agreement, dated as of February 4, 2010, by and among RF HoldCo LLC, Constellation Energy Group, Inc. and GSS Holdings (BGE Utility), Inc. (Designated as Exhibit No. 99.1 to the Current Report on Form 8-K dated February 4, 2010, filed by Baltimore Gas and Electric Company, File Nos. 1-12869 and 1-1910).

3-13	Certificate of Conversion of Pepco Holdings LLC, dated March 23, 2016 (File No. 001-31403, Form 8-K dated March 24, 2016, Exhibit 3.1)

3-14	Certificate of Formation of Pepco Holdings LLC, dated March 23, 2016 (File No. 001-31403, Form 8-K dated March 24, 2016, Exhibit 3.2)



Exhibit No.	Description
3-15	Limited Liability Company Agreement of Pepco Holdings LLC, dated March 23, 2016 (File No. 001-31403, Form 8-K dated March 24, 2016, Exhibit 3.3)

3-16	Potomac Electric Power Company Restated Articles of Incorporation and Articles of Restatement of (as filed in the District of Columbia) (File No. 001-31403, Form 10-Q dated May 5, 2006, Exhibit 3.1)

3-17	Potomac Electric Power Company Restated Articles of Incorporation and Articles of Restatement of (as filed in Virginia) (File No. 001-01072, Form 10-Q dated November 4, 2011, Exhibit 3.3)

3-18	Delmarva Power & Light Company Articles of Restatement of Certificate and Articles of Incorporation (filed in Delaware and Virginia 02/22/07) (File No. 001-01405, Form 10-K dated March 1, 2007, Exhibit 3.3)

3-19	Atlantic City Electric Company Restated Certificate of Incorporation (filed in New Jersey on August 9, 2002) (File No. 001-03559, Amendment No. 1 to Form U5B dated February 13, 2003, Exhibit B.8.1)

3-20	Bylaws of Potomac Electric Power Company (File No. 001-01072, Form 10-Q dated May 5, 2006, Exhibit 3.2)

3-21	Bylaws of Delmarva Power & Light Company (File No. 001-01405, Form 10-Q dated May 9, 2005, Exhibit 3.2.1)

3-22	Bylaws of Atlantic City Electric Company (File No. 001-03559, Form 10-Q dated May 9, 2005, Exhibit 3.2.2)

4-1	First and Refunding Mortgage dated May 1, 1923 between The Counties Gas and Electric Company (predecessor to PECO Energy Company) and Fidelity Trust Company, Trustee (U.S. Bank National Association, as current successor trustee), (Registration No. 2-2281, Exhibit B-1).(a)

4-1-2	Reserved.

4-1-3	Supplemental Indentures to PECO Energy Company’s First and Refunding Mortgage:



Dated as of	File Reference	Exhibit No.
May 1, 1927	2-2881(a)	B-1(c)

March 1, 1937	2-2881(a)	B-1(g)

December 1, 1941	2-4863(a)	B-1(h)

November 1, 1944	2-5472(a)	B-1(i)

December 1, 1946	2-6821(a)	7-1(j)

September 1, 1957	2-13562(a)	2(b)-17

May 1, 1958	2-14020(a)	2(b)-18

March 1, 1968	2-34051(a)	2(b)-24

March 1, 1981	2-72802(a)	4-46

March 1, 1981	2-72802(a)	4-47

December 1, 1984	1-01401, 1984 Form 10-K(a)	4-2(b)

March 1, 1993	1-01401, 1992 Form 10-K(a)	4(e)-86



	Dated as of	File Reference	Exhibit No.
	May 1, 1993	1-01401, March 31, 1993 Form 10-Q(a)	4(e)-88

	May 1, 1993	1-01401, March 31, 1993 Form 10-Q(a)	4(e)-89

	April 15, 2004	0-6844, September 30, 2004 Form 10-Q(a)	4-1-1

	September 15, 2006	000-16844, Form 8-K dated September 25, 2006	4.1

	March 1, 2007	000-16844, Form 8-K dated March 19, 2007	4.1

	March 15, 2009	000-16844, Form 8-K dated March 26, 2009	4.1

	September 1, 2012	000-16844, Form 8-K dated September 17, 2012	4.1

	September 15, 2013	000-16844, Form 8-K dated September 23, 2013	4.1

	September 1, 2014	000-16844, Form 8-K dated September 15, 2014	4.1

	September 15, 2015	000-16844, Form 8-K dated October 5, 2015	4.1

	September 1, 2016	000-16844, Form 8-K dated September 21, 2016	4.1

	September 1, 2017	000-16844, Form 8-K dated September 18, 2017	4.1

	February 1, 2018	000-16844, Form 8-K dated February 23, 2018	4.1

	September 1, 2018	000-16844, Form 8-K dated September 11, 2018	4.1

Exhibit No.	Description

4-2	Exelon Corporation Direct Stock Purchase Plan (Registration Statement No. 333-206474, Form S-3, Prospectus).

4-3	Mortgage of Commonwealth Edison Company to Illinois Merchants Trust Company, Trustee (BNY Mellon Trust Company of Illinois, as current successor Trustee), dated July 1, 1923, as supplemented and amended by Supplemental Indenture thereto dated August 1, 1944. (Registration No. 2-60201, Form S-7, Exhibit 2-1).(a)

4-3-1	Supplemental Indentures to Commonwealth Edison Company Mortgage.

	Dated as of	File Reference	Exhibit No.
	August 1, 1946	2-60201, Form S-7(a)	2-1

	April 1, 1953	2-60201, Form S-7(a)	2-1

	March 31, 1967	2-60201, Form S-7(a)	2-1



Dated as of	File Reference	Exhibit No.
April 1, 1967	2-60201, Form S-7(a)	2-1
February 28, 1969	2-60201, Form S-7(a)	2-1

May 29, 1970	2-60201, Form S-7(a)	2-1

June 1, 1971	2-60201, Form S-7(a)	2-1

April 1, 1972	2-60201, Form S-7(a)	2-1

May 31, 1972	2-60201, Form S-7(a)	2-1

June 15, 1973	2-60201, Form S-7(a)	2-1

May 31, 1974	2-60201, Form S-7(a)	2-1

June 13, 1975	2-60201, Form S-7(a)	2-1

May 28, 1976	2-60201, Form S-7(a)	2-1



June 3, 1977	2-60201, Form S-7(a)	2-1

May 17, 1978	2-99665, Form S-3(a)	4-3

August 31, 1978	2-99665, Form S-3(a)	4-3

June 18, 1979	2-99665, Form S-3(a)	4-3

June 20, 1980	2-99665, Form S-3(a)	4-3

April 16, 1981	2-99665, Form S-3(a)	4-3

April 30, 1982	2-99665, Form S-3(a)	4-3

April 15, 1983	2-99665, Form S-3(a)	4-3

April 13, 1984	2-99665, Form S-3(a)	4-3

April 15, 1985	2-99665, Form S-3(a)	4-3

April 15, 1986	33-6879, Form S-3(a)	4-9

January 13, 2003	001-01839, Form 8-K dated February 13, 2003	4-4

February 22, 2006	001-01839, Form 8-K dated March 6, 2006	4.1

August 1, 2006	001-01839, Form 8-K dated August 28, 2006	4.1

September 15, 2006	001-01839, Form 8-K dated October 2, 2006	4.1

March 1, 2007	001-01839, Form 8-K dated March 23, 2007	4.1

August 30, 2007	001-01839, Form 8-K dated September 10, 2007	4.1

December 20, 2007	001-01839, Form 8-K dated January 16, 2008	4.1

March 10, 2008	001-01839, Form 8-K dated March 27, 2008	4.1



Dated as of	File Reference	Exhibit No.
July 12, 2010	001-01839, Form 8-K dated August 2, 2010	4.1

August 22, 2011	001-01839, Form 8-K dated September 7, 2011	4.1

September 17, 2012	001-01839, Form 8-K dated October 1, 2012	4.1

August 1, 2013	001-01839, Form 8-K dated August 19, 2013	4.1

January 2, 2014	001-01839, Form 8-K dated January 10, 2014	4.1

October 28, 2014	001-01839, Form 8-K dated November 10, 2014	4.1

February 18, 2015	001-01839, Form 8-K dated March 2, 2015	4.1

November 4, 2015	001-01839, Form 8-K dated November 19, 2015	4.1

June 15, 2016	001-01839, Form 8-K dated June 27, 2016	4.1

August 9, 2017	001-01839, Form 8-K dated August 23, 2017	4.1

February 6, 2018	001-01839, Form 8-K dated February 20, 2018	4.1

July 26, 2018	001-01839, Form 8-K dated August 14, 2018	4.1



Exhibit No.	Description
4-3-2	Instrument of Registration, Appointment and Acceptance dated as of February 20, 2002, under the provisions of the Mortgage of Commonwealth Edison Company dated July 1, 1923, and Indentures Supplemental thereto, regarding corporate trustee (File No. 1-1839, 2001 Form 10-K, Exhibit 4-4-2).

4-3-3	Instrument dated as of January 31, 1996, under the provisions of the Mortgage of Commonwealth Edison Company dated July 1, 1923 and Indentures Supplemental thereto, regarding individual trustee (File No. 1-1839, 1995 Form 10-K, Exhibit 4-29).

4-4	Indenture dated as of September 1, 1987 between Commonwealth Edison Company and Citibank, N.A. (U.S. Bank National Association, as current successor trustee), Trustee relating to Notes (Registration No. 33-20619, Form S-3, Exhibit 4-13).(a)

4-5	Indenture dated December 19, 2003 between Exelon Generation Company, LLC and U.S. Bank National Association (File No. 333-85496, 2003 Form 10-K, Exhibit 4-6).

4-6	Indenture to Subordinated Debt Securities dated as of June 24, 2003 between PECO Energy Company, as Issuer, and U.S. Bank National Association, as Trustee (File No. 000-16844, June 30, 2003 Form 10-Q, Exhibit 4.1).

4-7	Form of 4.25% Senior Note due 2022 issued by Exelon Generation Company, LLC. (File 333-85496, Form 8-K dated June 18, 2012, Exhibit 4.1).

4-8	Form of 5.60% Senior Note due 2042 issued by Exelon Generation Company, LLC. (File 333-85496, Form 8-K dated June 18, 2012, Exhibit 4.2).



Exhibit No.	Description

4-9	Form of 2.80% Senior Note due 2022 issued by Baltimore Gas and Electric Company. (File 1-1910, Form 8-K dated August 17, 2012, Exhibit 4.1).

4-10	Form of 3.35% Senior Note due 2023 Baltimore Gas and Electric Company. (File 1-1910, Form 8-K dated June 17, 2013, Exhibit 4.1).

4-11	Form of 6.000% Senior Secured Notes due 2033 issued by Exelon Generation Company, LLC (File No. 333-85496, Form 8-K dated September 30, 2013, Exhibit No. 4.1).

4-12	Preferred Securities Guarantee Agreement between PECO Energy Company, as Guarantor, and U.S. Bank National Association, as Trustee, dated as of June 24, 2003 (File No. 000-16844, June 30, 2003 Form 10-Q, Exhibit 4.2).

4-13	PECO Energy Capital Trust IV Amended and Restated Declaration of Trust among PECO Energy Company, as Sponsor, U.S. Bank Trust National Association, as Delaware Trustee and Property Trustee, and J. Barry Mitchell, George R. Shicora and Charles S. Walls as Administrative Trustees dated as of June 24, 2003 (File No. 000-16844, June 30, 2003 Form 10-Q, Exhibit 4.3).

4-14	Indenture dated May 1, 2001 between Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee (File No. 1-16169, June 30, 2005 Form 10-Q, Exhibit 4-10).

4-15	Form of $500,000,000 5.625% senior notes due 2035 dated June 9, 2005 issued by Exelon Corporation (File No. 1-16169, Form 8-K dated June 9, 2005, Exhibit 99.3).

4-16	Indenture dated as of September 28, 2007 from Exelon Generation Company, LLC to U.S. Bank National Association, as trustee (File 333-85496, Form 8-K dated September 28, 2007, Exhibit 4.1).

4-17	Form of 5.20% Exelon Generation Company, LLC Senior Note due 2019 (File 333-85496, Form 8-K dated September 23, 2009, Exhibit 4.1).

4-18	Form of 6.25% Exelon Generation Company, LLC Senior Note due 2039 (File 333-85496, Form 8-K dated September 23, 2009, Exhibit 4.2).

4-19	Form of 4.00% Exelon Generation Company, LLC Senior Note due 2020 (File No. 333-85496, Form 8-K dated September 30, 2010, Exhibit 4.1).

4-20	Form of 5.75% Exelon Generation Company, LLC Senior Note due 2041 (File No. 333-85496, Form 8-K dated September 30, 2010, Exhibit 4.2).

4-21	Indenture between Constellation Energy Group, Inc. and the Bank of New York, Trustee dated as of March 24, 1999. (Designated as Exhibit No. 4(a) to the Registration Statement on Form S-3 dated March 29, 1999, filed by Constellation Energy Group, Inc., File No. 333-75217.)

4-22	First Supplemental Indenture between Constellation Energy Group, Inc. and the Bank of New York, Trustee dated as of January 24, 2003. (Designated as Exhibit No. 4(b) to the Registration Statement on Form S-3 dated January 24, 2003, filed by Constellation Energy Group, Inc., File No. 333-102723).

4-23	Indenture dated as of July 24, 2006 between Constellation Energy Group, Inc. and Deutsche Bank Trust Company Americas, as trustee. (Designated as Exhibit No. 4(a) to the Registration Statement on Form S-3 filed July 24, 2006, filed by Constellation Energy Group, Inc., File No. 333-135991).

4-24	First Supplemental Indenture between Constellation Energy Group, Inc. and Deutsche Bank Trust Company Americas, as trustee, dated as of June 27, 2008. (Designated as Exhibit 4(a) to the Current Report on Form 8-K dated June 30, 2008, filed by Constellation Energy Group, Inc., File No. 1-12869).



Exhibit No.	Description
4-25	Indenture dated June 19, 2008 between Constellation Energy Group, Inc. and Deutsche Bank Trust Company Americas, as trustee. (Designated as Exhibit No. 4(a) to the Quarterly Report on Form 10-Q for the quarter ended June 30, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

4-26	Indenture, dated as of September 30, 2013, among Continental Wind, LLC, the guarantors party thereto and Wilmington Trust, National Association, as trustee (File No. 333-85496, Form 8-K dated September 30, 2013, Exhibit No. 4.1).

4-27	Indenture dated July 1, 1985, between Baltimore Gas and Electric Company and The Bank of New York (Successor to Mercantile-Safe Deposit and Trust Company), Trustee. (Designated as Exhibit 4(a) to the Registration Statement on Form S-3, File No. 2-98443); as supplemented by Supplemental Indentures dated as of October 1, 1987 (Designated as Exhibit 4(a) to the Current Report on Form 8-K, dated November 13, 1987, File No. 1-1910) and as of January 26, 1993 (Designated as Exhibit 4(b) to the Current Report on Form 8-K, dated January 29, 1993, filed by Baltimore Gas and Electric Company, File No. 1-1910).(a)

4-28	Indenture and Security Agreement dated as of July 9, 2009, between Baltimore Gas and Electric Company and Deutsche Bank Trust Company Americas, as trustee (Designated as Exhibit No. 4(u) to Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 dated July 9, 2009, filed by Constellation Energy Group, Inc., File Nos. 333-157637 and 333-157637-01).

4-29	Indenture dated as of July 24, 2006 between Baltimore Gas and Electric Company and Deutsche Bank Trust Company Americas, as trustee. (Designated as Exhibit 4(b) to the Registration Statement on Form S-3 filed July 24, 2006, filed by Constellation Energy Group, Inc., File No. 333-135991).

4-30	Supplemental Indenture No. 1, dated as of October 1, 2009, to the Indenture and Security Agreement dated as of July 9, 2009, between Baltimore Gas and Electric Company and Deutsche Bank Trust Company Americas, as trustee. (Designated as Exhibit No. 4(c) to the Quarterly Report on Form 10-Q for the quarter ended September 30, 2009, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

4-31	Baltimore Gas and Electric Company Deed of Easement and Right-of-Way Grant dated as of July 9, 2009 (Designated as Exhibit No. 4(u)(2) to Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 dated July 9, 2009, filed by Constellation Energy Group, Inc., File Nos. 333-157637 and 333-157637-01).

4-32	Indenture dated as of June 29, 2007, by and between RSB BondCo LLC and Deutsche Bank Trust Company Americas, as Trustee and Securities Intermediary. (Designated as Exhibit 4.1 to the Current Report on Form 8-K dated July 5, 2007, filed by Baltimore Gas and Electric Company, File No. 1-1910).

4-33	Series Supplement to Indenture dated as of June 29, 2007 by and between RSB BondCo LLC and Deutsche Bank Trust Company Americas, as Trustee and Securities Intermediary (Designated as Exhibit No. 4(b) to the Quarterly Report on Form 10-Q for the quarter ended September 30, 2009, filed by Baltimore Gas and Electric Company, File No. 1-1910).

4-34	Replacement Capital Covenant dated June 27, 2008. (Designated as Exhibit No. 4(b) to the Current Report on Form 8-K dated June 30, 2008, filed by Constellation Energy Group, Inc., File No. 1-12869).

4-35	Amendment to Replacement Capital Covenant, dated as of March 12, 2012, amending the Replacement Capital Covenant, dated as of June 27, 2008 (File No. 001-16169, Form 8-K dated March 14, 2012, Exhibit No. 99.4).



Exhibit No.	Description
4-36	Officers’ Certificate, dated December 14, 2010, establishing the 5.15% Notes due December 1, 2020 of Constellation Energy Group, Inc., with the form of Notes attached thereto. (Designated as Exhibit No. 4 (b) to the Current Report on Form 8-K dated December 14, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

4-37	Officers’ Certificate, November 16, 2011, establishing the 3.50% Notes due November 15, 2021 of Baltimore Gas and Electric Company, with the form of Notes attached thereto. (Designated as Exhibit No. 4(b) to the Current Report on Form 8-K dated November 16, 2011, filed by Baltimore Gas and Electric Company, File No. 1-1910).

4-38	Indenture, dated as of June 17, 2014, between Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee. (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.1).

4-38-1	First Supplemental Indenture, dated as of June 17, 2014, between Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee. (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.2).

4-38-2	Form of 2.50% Notes due 2024 (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.2, Exhibit A).

4-38-3	Purchase Contract and Pledge Agreement, between Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as Purchase Contract Agent, Collateral Agent, Custodial Agent and Securities Intermediary. (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.4).

4-38-4	Form of Remarketing Agreement (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.4, Exhibit P).

4-38-5	Form of Corporate Unit (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.4, Exhibit A).

4-38-6	Form of Treasury Unit (File No. 001-16169, Form 8-K dated June 23, 2014, Exhibit 4.4, Exhibit B).

4-39	Indenture, dated as of June 11, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee (incorporated herein by reference to Exhibit 4.1 to Exelon Corporation’s Current Report on Form 8-K, filed on June 11, 2015).

4-39-1	First Supplemental Indenture, dated as of June 11, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee (incorporated herein by reference to Exhibit 4.2 to Exelon Corporation’s Current Report on Form 8-K, filed on June 11, 2015).

4-39-2	Second Supplemental Indenture, dated as of December 2, 2015, among Exelon Corporation and The Bank of New York Mellon Trust Company, National Association, as trustee (incorporated herein by reference to Exhibit 4.1 to Exelon Corporation’s Current Report on Form 8-K, filed on December 2, 2015).

4-39-3	Registration Rights Agreement, dated as of December 2, 2015, among Exelon Corporation, Barclays Capital Inc. and Goldman, Sachs & Co. (incorporated herein by reference to Exhibit 1.1 to Exelon Corporation’s Current Report on Form 8-K, filed on December 2, 2015).

4-40	Form of Conversion Supplemental Indenture, dated March 23, 2016 (File No. 001-31403, Form 8-K dated March 24, 2016, Exhibit 4.1)

4-41	Third Supplemental Indenture, dated as of April 7, 2016, among Exelon Corporation and The Bank of New York Mellon Trust Company, N.A., as trustee (File No. 001-16169, Form 8-K dated April 7, 2016, Exhibit 4.2)



Exhibit No.	Description
4-42	Mortgage and Deed of Trust, dated July 1, 1936, of Potomac Electric Power Company to The Bank of New York Mellon as successor trustee, securing First Mortgage Bonds of Potomac Electric Power Company, and Supplemental Indenture dated July 1, 1936 (File No. 2-2232, Registration Statement dated June 19, 1936, Exhibit B-4)(a)

4-42-1	Supplemental Indentures to Potomac Electric Power Company Mortgage.



Dated as of	File Reference	Exhibit No.

December 10, 1939	Form 8-K, 1/3/40(a)	B

July 15, 1942	2-5032, Amendment No 2. To Registration Statement, 8/24/42(a)	B-1

October 15, 1947	Form 8-K , 12/8/47(a)	A

December 31, 1948	Form 10-K, 4/13/49(a)	A-2

December 31, 1949	Form 8-K, 2/8/50(a)	(a)-1

February 15, 1951	Form 8-K, 3/9/51(a)	(a)

February 16, 1953	Form 8-K, 3/5/53(a)	(a)-1

March 15, 1954 and March 15, 1955	2-11627, Registration Statement, 5/2/55(a)	4-B

March 15, 1956	Form 10-K, 4/4/56(a)	C

April 1, 1957	2-13884, Registration Statement, 2/5/58(a)	4-B

May 1, 1958	2-14518, Registration Statement, 11/10/58(a)	2-B

May 1, 1959	2-15027, Amendment No. 1 to Registration Statement, 5/13/59(a)	4-B

May 2, 1960	2-17286, Registration Statement, 11/9/60(a)	2-B

April 3, 1961	Form 10-K, 4/24/61(a)	A-1

May 1, 1962	2-21037, Registration Statement, 1/25/63(a)	2-B

May 1, 1963	2-21961, Registration Statement, 12/19/63(a)	4-B

April 23, 1964	2-22344, Registration Statement, 4/24/64(a)	2-B

May 3, 1965	2-24655, Registration Statement, 3/16/66(a)	2-B

June 1, 1966	Form 10-K, 4/11/67(a)	1

April 28, 1967	2-26356, Post-Effective Amendment No. 1 to Registration Statement, 5/3/67(a)	2-B



Dated as of	File Reference	Exhibit No.

July 3, 1967	2-28080, Registration Statement, 1/25/68(a)	2-B

May 1, 1968	2-31896, Registration Statement, 2/28/69(a)	2-B

June 16, 1969	2-36094, Registration Statement, 1/27/70(a)	2-B

May 15, 1970	2-38038, Registration Statement, 7/27/70(a)	2-B

September 1, 1971	2-45591, Registration Statement, 9/1/72(a)	2-C

June 17, 1981	Amendment No. 1 to Form 8-A, 6/18/81(a)	2

November 1, 1985	Form 8-A, 11/1/85(a)	2B

September 16, 1987	33-18229, Registration Statement, 10/30/87(a)	4-B

May 1, 1989	33-29382, Registration Statement, 6/16/89(a)	4-C

May 21, 1991	Form 10-K, 3/27/92(a)	4

May 7, 1992	Form 10-K, 3/26/93(a)	4

September 1, 1992	Form 10-K, 3/26/93(a)	4

November 1, 1992	Form 10-K, 3/26/93(a)	4

July 1, 1993	33-49973, Registration Statement, 8/11/93(a)	4.4

February 10, 1994	001-01072, Form 10-K, 3/25/94	4

February 11, 1994	001-01072, Form 10-K, 3/25/94	4

October 2, 1997	001-01072, Form 10-K, 3/27/98	4

November 17, 2003	001-01072, Form 10-K, 3/12/04	4.1

March 16, 2004	001-01072, Form 8-K, 3/23/04	4.3

May 24, 2005	001-01072, Form 8-K, 5/26/05	4.2

April 1, 2006	001-01072, Form 8-K, 4/17/06	4

November 13, 2007	001-01072, Form 8-K, 11/15/07	4.2

March 24, 2008	001-01072, Form 8-K, 3/28/08	4.1



Dated as of	File Reference	Exhibit No.
December 3, 2008	001-01072, Form 8-K, 12/8/08	4.2

March 28, 2012	001-01072, Form 8-K, 3/29/12	4.2

March 11, 2013	001-01072, Form 8-K, 3/12/13	4.2

November 14, 2013	001-01072, Form 8-K, 11/15/13	4.2

March 11, 2014	001-01072, Form 8-K, 3/12/14	4.2

March 9, 2015	001-01072, Form 8-K, 3/10/15	4.3

May 15, 2017	001-01072, Form 8-K, 5/22/17	4.2

June 1, 2018	001-01072, Form 8-K, 6/21/2018	4.2



Exhibit No.	Description
4-43	Indenture, dated as of July 28, 1989, between Potomac Electric Power Company and The Bank of New York Mellon, Trustee, with respect to Medium-Term Note Program (File No. 001-01072, Form 8-K dated June 21, 1990, Exhibit 4)(a)

4-44	Senior Note Indenture, dated November 17, 2003 between Potomac Electric Power Company and The Bank of New York Mellon (File No. 001-01072, Form 8-K dated November 21, 2003, Exhibit 4.2)

4-44-1	Supplemental Indenture, dated March 3, 2008, to Senior Note Indenture between Potomac Electric Power Company and The Bank of New York Mellon (File No. 001-01072, Form 10-K dated March 2, 2009, Exhibit 4.3)

4-45	Mortgage and Deed of Trust of Delaware Power & Light Company to The Bank of New York Mellon (ultimate successor to the New York Trust Company), as trustee, dated as of October 1, 1943, and copies of the First through Sixty-Eighth Supplemental Indentures thereto (File No. 33-1763, Registration Statement dated November 27, 1985, Exhibit 4-A)(a)

4-45-1	Supplemental Indentures to Delmarva Power & Light Company Mortgage.

	Dated as of	File Reference	Exhibit No.

	January 1, 1986	33-39756, Registration Statement, 4/03/91(a)	4-B

	June 1, 1986	33-24955, Registration Statement, 10/13/88(a)	4-B

	January 1, 1987	33-24955, Registration Statement, 10/13/88(a)	4-B

	September 1, 1987	33-24955, Registration Statement, 10/13/88(a)	4-B

	October 1, 1987	33-24955, Registration Statement, 10/13/88(a)	4-B

	January 1, 1988	33-24955, Registration Statement, 10/13/88(a)	4-B



Dated as of	File Reference	Exhibit No.
December 1, 1988	33-39756, Registration Statement, 4/03/91(a)	4-D

January 1, 1989	33-39756, Registration Statement, 4/03/91(a)	4-E

March 1, 1990	33-39756, Registration Statement, 4/03/91(a)	4-F

January 1, 1991	33-46892, Registration Statement, 4/1/92(a)	4-E

July 1, 1991	33-46892, Registration Statement, 4/1/92(a)	4-F

February 1, 1992	33-49750, Registration Statement, 7/17/92(a)	4

May 1, 1992	33-57652, Registration Statement, 1/29/93(a)	4-G

October 1, 1992	33-63582, Registration Statement, 5/28/93(a)	4-H

January 1, 1993	33-50453, Registration Statement, 10/1/93(a)	99

June 1, 1993	33-53855, Registration Statement, 1/30/95(a)	4-J

July 1, 1993	33-53855, Registration Statement, 1/30/95(a)	4-K

October 1, 1993	33-53855, Registration Statement, 1/30/95(a)	4-L

January 1, 1994	33-53855, Registration Statement, 1/30/95(a)	4-M

October 1, 1994	33-53855, Registration Statement, 1/30/95(a)	4-N

January 1, 1995	333-00505, Registration Statement, 1/29/96(a)	4-K

June 1, 1995	333-00505, Registration Statement, 1/29/96(a)	4-L

January 1, 1996	333-24059, Registration Statement, 3/27/97(a)	4-L

January 1, 1997	001-01405, Form 10-K, 2/24/12	4.4

January 1, 1998	001-01405, Form 10-K, 2/24/12	4.4

January 1, 1999	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2000	333-145691-02, Post Effective Amendment No. 1 to Registration Statement, 11/18/08	4.24(k)



Dated as of	File Reference	Exhibit No.
January 1, 2001	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2002	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2003	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2004	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2005	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2006	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2007	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2008	001-01405, Form 10-K, 2/24/12	4.4

January 1, 2009	001-01405, Form 10-K, 2/24/12	4.4

September 22, 2009	001-01405, Form 8-K, 10/1/09	4.4

January 1, 2010	001-01405, Form 10-K, 2/25/11	4.4

January 1, 2011	001-01405, Form 10-Q, 8/3/11	4.2

May 2, 2011	001-01405, Form 8-K, 6/3/11	4.2

January 1, 2012	001-01405, Form 10-Q, 8/7/12	4.3

June 19, 2012	001-01405, Form 8-K, 6/20/12	4.2

January 1, 2013	001-01405, Form 10-Q, 8/7/13	4.1

November 7, 2013	001-01405, Form 8-K, 11/8/13	4.2

January 1, 2014	001-01405, Form 10-K, 2/27/15	4.4

June 2, 2014	001-01405, Form 8-K, 6/3/14	4.3

January 1, 2015	001-01405, Form 10-K, 2/19/16	4.4

May 4, 2015	001-01405, Form 8-K, 5/5/15	4.2

January 1, 2016	001-01405, Form 10-K, 2/13/17	4.45.1

December 5, 2016	001-01405, Form 8-K, 12/12/16	4.2



Dated as of	File Reference	Exhibit No.
April 5, 2017	001-01405, Form 10-Q, 5/3/17	4.5
April 3, 2018	000-01405, Form 10-Q, 5/2/18	4.3

June 1, 2018	000-01405, Form 8-K, 6/21/18	4.2



Exhibit No.	Description
4-46	Indenture between Delmarva Power & Light Company and The Bank of New York Mellon Trust Company, N.A. (ultimate successor to Manufacturers Hanover Trust Company), as trustee, dated as of November 1, 1988 (File No. 33-46892, Registration Statement dated April 1, 1992, Exhibit 4-G)(a)

4-47	Mortgage and Deed of Trust, dated January 15, 1937, between Atlantic City Electric Company and The Bank of New York Mellon (formerly Irving Trust Company), as trustee (File No. 2-66280, Registration Statement dated December 21, 1979, Exhibit 2(a))(a)

4-47-1	Supplemental Indentures to Atlantic City Electric Company Mortgage.

	Dated as of	File Reference	Exhibit No.

	June 1, 1949	2-66280, Registration Statement, 12/21/79(a)	2(b)

	July 1, 1950	2-66280, Registration Statement, 12/21/79(a)	2(b)

	November 1, 1950	2-66280, Registration Statement, 12/21/79(a)	2(b)

	March 1, 1952	2-66280, Registration Statement, 12/21/79(a)	2(b)

	January 1, 1953	2-66280, Registration Statement, 12/21/79(a)	2(b)

	March 1, 1954	2-66280, Registration Statement, 12/21/79(a)	2(b)

	March 1, 1955	2-66280, Registration Statement, 12/21/79(a)	2(b)

	January 1, 1957	2-66280, Registration Statement, 12/21/79(a)	2(b)

	April 1, 1958	2-66280, Registration Statement, 12/21/79(a)	2(b)

	April 1, 1959	2-66280, Registration Statement, 12/21/79(a)	2(b)

	March 1, 1961	2-66280, Registration Statement, 12/21/79(a)	2(b)

	July 1, 1962	2-66280, Registration Statement, 12/21/79(a)	2(b)

	March 1, 1963	2-66280, Registration Statement, 12/21/79(a)	2(b)



Dated as of	File Reference	Exhibit No.
February 1, 1966	2-66280, Registration Statement, 12/21/79(a)	2(b)

April 1, 1970	2-66280, Registration Statement, 12/21/79(a)	2(b)

September 1, 1970	2-66280, Registration Statement, 12/21/79(a)	2(b)

May 1, 1971	2-66280, Registration Statement, 12/21/79(a)	2(b)

April 1, 1972	2-66280, Registration Statement, 12/21/79(a)	2(b)

June 1, 1973	2-66280, Registration Statement, 12/21/79(a)	2(b)

January 1, 1975	2-66280, Registration Statement, 12/21/79(a)	2(b)

May 1, 1975	2-66280, Registration Statement, 12/21/79(a)	2(b)

December 1, 1976	2-66280, Registration Statement, 12/21/79(a)	2(b)

January 1, 1980	Form 10-K, 3/25/81(a)	4(e)

May 1, 1981	Form 10-Q, 8/10/81(a)	4(a)

November 1, 1983	Form 10-K, 3/30/84(a)	4(d)

April 15, 1984	Form 10-Q, 5/14/84(a)	4(a)

July 15, 1984	Form 10-Q, 8/13/84(a)	4(a)

October 1, 1985	Form 10-Q, 11/12/85(a)	4

May 1, 1986	Form 10-Q, 5/12/86(a)	4

July 15, 1987	Form 10-K, 3/28/88(a)	4(d)

October 1, 1989	Form 10-Q for quarter ended 9/30/89(A)	4(a)

March 1, 1991	Form 10-K, 3/28/91(a)	4(d)(1)

May 1, 1992	33-49279, Registration Statement, 1/6/93(a)	4(b)

January 1, 1993	333-108861, Registration Statement, 9/17/03	4.05(hh)

August 1, 1993	Form 10-Q, 11/12/93(a)	4(a)

September 1, 1993	Form 10-Q, 11/12/93(a)	4(b)

November 1, 1993	Form 10-K, 3/29/94(a)	4(c)(1)

June 1, 1994	Form 10-Q, 8/14/94(a)	4(a)

October 1, 1994	Form 10-Q, 11/14/94(a)	4(a)



Dated as of	File Reference	Exhibit No.
November 1, 1994	Form 10-K, 3/21/95(a)	4(c)(1)

March 1, 1997	001-03559, Form 8-K, 3/24/97	4(b)

April 1, 2004	001-03559, Form 8-K, 4/6/04	4.3

August 10, 2004	001-03559, Form 10-Q, 11/9/04	4

March 8, 2006	001-03559, Form 8-K, 3/17/06	4

November 6, 2008	001-03559, Form 8-K, 11/10/08	4.2

March 29, 2011	001-03559, Form 8-K, 4/1/11	4.2

August 18, 2014	001-03559, Form 8-K, 8/19/14	4.2

December 1, 2015	001-03559, Form 8-K, 12/2/15	4.2

October 9, 2018	001-03559, Form 8-K, 10/16/18	4.1



Exhibit No.	Description
4-48	Indenture, dated as of March 1, 1997, between Atlantic City Electric Company and The Bank of New York Mellon, as trustee (File No. 001-03559, Form 8-K dated March 24, 1997, Exhibit 4.2)

4-49	Senior Note Indenture, dated as of April 1, 2004, between Atlantic City Electric Company and The Bank of New York Mellon, as trustee (File No. 001-03559, Form 8-K dated April 6, 2004, Exhibit 4.2)

4-50	Indenture, dated as of December 19, 2002 between Atlantic City Electric Transition Funding LLC and The Bank of New York Mellon, as trustee (File No. 333-59558, Form 8-K dated December 23, 2002, Exhibit 4.1)

4-51	2002-1 Series Supplement, dated as of December 19, 2002 between Atlantic City Electric Transition Funding LLC and The Bank of New York Mellon, as trustee (File No. 333-59558, Form 8-K dated December 23, 2002, Exhibit 4.2)

4-52	2003-1 Series Supplement, dated as of December 23, 2003 between Atlantic City Electric Transition Funding LLC and The Bank of New York Mellon, as trustee (File No. 333-59558, Form 8-K dated December 23, 2003, Exhibit 4.2)

4-53	Indenture, dated September 6, 2002, between Pepco Holdings, Inc. and The Bank of New York Mellon, as trustee (File No. 333-100478, Registration Statement on Form S-3 dated October 10, 2002, Exhibit 4.03)

4-54	Corporate Commercial Paper Master Note (File No. 001-31403, Form 10-K dated February 24, 2012, Exhibit 4.13)

4-55	Pepco Holdings, Inc. Certificate of Series A Non-Voting Non-Convertible Preferred Stock (File No. 001-31403, Form 8-k dated April 30, 2014, Exhibit 3.1)

4-56	Form of 2.400% notes due 2026 (File No. 001-01910, Form 8-K dated August 18, 2016, Exhibit 4.1)

4-57	Form of 3.500% notes due 2046 (File No. 001-01910, Form 8-K dated August 18, 2016, Exhibit 4.2)



Exhibit No.	Description
4-58	Form of Exelon Generation Company, LLC 2.950% senior notes due 2020 (File No. 333-85496, Form 8-K dated March 10, 2017, Exhibit 4.1)

4-59	Form of Exelon Generation Company, LLC 3.400% notes due 2022 (File No. 333-85496, Form 8-K dated March 10, 2017, Exhibit 4.2)

4-60	Second Supplemental Indenture, dated April 3, 2017, between Exelon and The Bank of New York Mellon Trust Company, N.A., as trustee, to that certain Indenture (For Unsecured Subordinated Debt Securities), dated June 17, 2014 (File No. 001-16169, Form 8-K dated April 4, 2017, Exhibit 4.3)

4-61	Form of Exelon Corporation 3.497% junior subordinated notes due 2022 (File No. 001-16169, Form 8-K dated April 4, 2017, Exhibit 4.4)

4-62	Form of First Mortgage Bond, 4.15% Series due March 15, 2043 (File No. 001-01072, Form 8-K dated May 22, 2017, Exhibit 4.2)

4-63	BGE Form of 3.750% notes due 2047 (File No. 001-01910, Form 8-K dated August 24, 2017, Exhibit 4.1)

10-1	Facility Credit Agreement, dated as of February 6, 2014, among ExGen Renewables I Holding, LLC and Barclays Bank PLC (File No. 333-85496, Form 8-K dated February 12, 2014, Exhibit 10.1).

10-1-1	Credit Agreement, dated as of September 18, 2014, among ExGen Texas Power, LLC, ExGen Texas Power Holdings, LLC, Wolf Hollow I Power, LLC, Colorado Bend I Power, LLC, Laporte Power, LLC, Handley Power, LLC and Mountain Creek Power, LLC, the lenders party thereto from time to time, Bank of America, N.A., as administrative agent and collateral agent, and Wilmington Trust, National Association, as depositary agent. (File No. 1-16169, Form 8-K dated September 18, 2014, Exhibit 10.1).

10-2	Exelon Corporation Non-Employee Directors’ Deferred Stock Unit Plan (As Amended and Restated Effective January 1, 2011). * (File No. 001-16169, 2010 Form 10-K, Exhibit 10.1).

10-3	Form of Exelon Corporation Unfunded Deferred Compensation Plan for Directors (as amended and restated Effective March 12, 2012). * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-3)

10-4	Reserved.

10-5	Form of Restricted Stock Award Agreement under the Exelon Corporation Long-Term Incentive Plan* (File No. 1-16169, 2001 Form 10-K, Exhibit 10-6-1).

10-6	Forms of Transferable Stock Option Award Agreement under the Exelon Corporation Long-Term Incentive Plan* (File No. 1-16169, 2001 Form 10-K, Exhibit 10-6-2).

10-7	Forms of Stock Option Award Agreement under the Exelon Corporation Long-Term Incentive Plan* (File No. 1-16169, 2001 Form 10-K, Exhibit 10-6-3).

10-8	Unicom Corporation Deferred Compensation Unit Plan, as amended *(File Nos. 1-11375 and 1-1839, 1995 Form 10-K, Exhibit 10-12).

10-9	Amendment Number One to the Unicom Corporation Deferred Compensation Unit Plan, as amended January 1, 2008 * (File No. 001-16169, 2008 Form 10-K, Exhibit 10.16).

10-10	Unicom Corporation Retirement Plan for Directors, as amended *(Registration Statement No. 333-49780, Form S-8, Exhibit 4-12).



Exhibit No.	Description
10-11	Commonwealth Edison Company Retirement Plan for Directors, as amended *(Registration Statement No. 333-49780, Form S-8, Exhibit 4-13).

10-12	Exelon Corporation Supplemental Management Retirement Plan (As Amended and Restated Effective January 1, 2009) * (File No. 001-16169, 2008 Form 10-K, Exhibit 10.19).

10-13	PECO Energy Company Supplemental Pension Benefit Plan (As Amended and Restated Effective January 1, 2009) (File No. 000-16844, 2008 Form 10-K, Exhibit 10.20).

10-14	Exelon Corporation Annual Incentive Plan for Senior Executives (As Amended Effective January 1, 2014 * (File No. 1-16169, Exelon Proxy Statement dated April 1, 2014, Appendix A).

10-15	Form of change in control employment agreement for senior executives effective January 1, 2009 * (File No. 001-16169. 2008 Form 10-K, Exhibit 10.23).

10-16	Form of change in control employment agreement (amended and restated as of January 1, 2009) * (File No. 001-16169, 2008 Form 10-K, Exhibit 10.24).

10-17	Exelon Corporation Employee Stock Purchase Plan, as amended and restated effective July 1, 2013. (File No. 1-16169, Schedule 14A dated March 14, 2013 Appendix A).

10-18	Exelon Corporation 2006 Long-Term Incentive Plan (Registration Statement No. 333-122704, Form S-4, Joint Proxy Statement-Prospectus pursuant to Rule 424(b)(3) filed June 3, 2005, Annex H).

10-19	Form of Stock Option Grant Instrument under the Exelon Corporation 2006 Long-Term Incentive Plan (File No. 1-16169, Form 8-K filed January 27, 2006, Exhibit 99.2).

10-20	Exelon Corporation Employee Stock Purchase Plan for Unincorporated Subsidiaries (Registration Statement No. 333-122704, Form S-4, Joint Proxy Statement-Prospectus pursuant to Rule 424(b)(3) filed June 3, 2005, Annex I).

10-21	Exelon Corporation Senior Management Severance Plan (As Amended and Restated Effective April 1, 2013).* (File No. 001-16169, 2013 Form 10-K, Exhibit 10.21).

10-21-1	Exelon Corporation Senior Management Severance Plan (As Amended and Restated Effective November 1, 2015) * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-21-1)

10-22	Form of Separation Agreement under Exelon Corporation Senior Management Severance Plan (As Amended and Restated Effective November 1, 2015).

10-23	Facility Credit Agreement, dated as of November 4, 2010, among Exelon Generation Company, LLC and UBS AG, Stamford Branch (File No. 333-85496, Form 8-K dated February 22, 2011, Exhibit No. 10-1).

10-24	Exelon Corporation Executive Death Benefits Plan dated as of January 1, 2003 * (File No. 1-16169, 2006 Form 10-K, Exhibit 10-52).

10-25	First Amendment to Exelon Corporation Executive Death Benefits Plan, Effective January 1, 2006 * (File No. 1-16169, 2006 Form 10-K, Exhibit 10-53).

10-26	Amendment Number One to the Exelon Corporation 2006 Long-Term Incentive Plan, Effective December 4, 2006 (File No. 1-16169, 2006 Form 10-K, Exhibit 10-54).

10-27	Amendment Number Two to the Exelon Corporation 2006 Long-Term Incentive Plan (As Amended and Restated Effective January 28, 2002), Effective December 4, 2006 (File No. 1-16169, 2006 Form 10-K, Exhibit 10-55).



Exhibit No.	Description
10-28	Exelon Corporation Deferred Compensation Plan (As Amended and Restated Effective January 1, 2005) (File No. 1-16169, 2006 Form 10-K, Exhibit 10-56).

10-29	Exelon Corporation Stock Deferral Plan (As Amended and Restated Effective January 1, 2005) (File No. 1-16169, 2006 Form 10-K, Exhibit 10-57).

10-30	Commonwealth Edison Company Long-Term Incentive Plan, Effective January 1, 2007 (File No. 1-16169, March 31, 2007 Form 10-Q, Exhibit 10-1).

10-31	Amendment Number One to the Exelon Corporation Stock Deferral Plan (As Amended and Restated Effective January 1, 2005) (File No. 1-16169, June 30, 2007 Form 10-Q, Exhibit 10-3).

10-32	Restricted stock unit award agreement (File 1-16169, Form 8-K dated August 31, 2007, Exhibit 99.1).

10-33	Reserved.

10-34	Form of Exelon Corporation 2011 Long-Term Incentive Plan, as amended effective December 18, 2014. * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-34)

10-34-1	Form of Exelon Corporation Long-Term Incentive Program, as amended and restated as of January 1, 2014. * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-34-1)

10-34-2	Form of Exelon Corporation Long-Term Incentive Program, as amended and restated as of January 1, 2015. * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-34-2)

10-34-3	Amendment Number Two to the Exelon Corporation 2011 Long-Term Incentive Plan (As Amended and Restated Effective January 21, 2014), Effective October 26, 2015. * (File No. 1-16169, 2015 Form 10-K, Exhibit 10-34-3)

10-35	Form of Change in Control Employment Agreement Effective February 10, 2011. * (File 1-16169, 2010 Form 10-K, Exhibit 10-44).

10-36	Credit Agreement for $500,000,000 dated as of March 23, 2011 between Exelon Corporation and Various Financial Institutions (File No. 001-16169, Form 8-K dated March 23, 2011, Exhibit No. 99.1).

10-37	Credit Agreement for $5,300,000,000 dated as of March 23, 2011 between Exelon Generation Company, LLC and Various Financial Institutions (File No. 333-85496, Form 8-K dated March 23, 2011, Exhibit No. 99.2).

10-38	Credit Agreement for $600,000,000 dated as of March 23, 2011 between PECO Energy Company and Various Financial Institutions (File No. 000-16844, Form 8-K dated March 23, 2011, Exhibit No. 99.3).

10-39	Credit Agreement dated as of March 28, 2012 among Commonwealth Edison Company, Various Financial Institutions, as Lenders, and JP Morgan Chase Bank, N.A., as Administrative Agent (File No. 001-01839, Form 8-K dated March 28, 2012, Exhibit No. 99-1).

10-40	Amendment No. 3 to Credit Agreement dated as of March 23, 2011 among Exelon Corporation, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 001-16169, Form 8-K dated August 10, 2013, Exhibit No. 99-1).

10-41	Amendment No. 1 to Credit Agreement dated as of March 28, 2012 among Commonwealth Edison Company, as Borrower, the various financial institutions named therein, as Lenders and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 001-1839, Form 8-K dated August 10, 2013, Exhibit No. 99-2).



Exhibit No.	Description
10-42	Amendment No. 1 to Credit Agreement, dated as of December 21, 2011, to the Credit Agreement dated as of March 23, 2011, among Exelon Generation Company, LLC, the lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 001-16169, Form 8-K dated March 14, 2012, Exhibit No. 4-6).

10-43	Constellation Energy Group, Inc. Nonqualified Deferred Compensation Plan, as amended and restated. * (Designated as Exhibit No. 10(b) to the Constellation Annual Report on Form 10-K for the year ended December 31, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-44	Constellation Energy Group, Inc. Deferred Compensation Plan for Non-Employee Directors, as amended and restated. * (Designated as Exhibit No. 10(c) to the Constellation Annual Report on Form 10-K for the year ended December 31, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-45	Constellation Energy Group, Inc. Benefits Restoration Plan, amended and restated effective June 1, 2010. * (Designated as Exhibit No. 10(b) to the Constellation Quarterly Report on Form 10-Q for the quarter ended June 30, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-46	Constellation Energy Group, Inc. Supplemental Pension Plan, as amended and restated. * (Designated as Exhibit No. 10(e) to the Constellation Annual Report on Form 10-K for the year ended December 31, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-47	Constellation Energy Group, Inc. Senior Executive Supplemental Plan, as amended and restated. * (Designated as Exhibit No. 10(f) to the Constellation Annual Report on Form 10-K for the year ended December 31, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).




Exhibit No.	Description
10-48	Executive Annual Incentive Plan of Constellation Energy Group, Inc., as amended and restated. * (Designated as Exhibit No. 10(d) to the Quarterly Report on Form 10-Q for the quarter ended September 30, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-49	Constellation Energy Group, Inc. Executive Supplemental Benefits Plan, as amended and restated. * (Designated as Exhibit No. 10(a) to the Constellation Quarterly Report on Form 10-Q for the quarter ended June 30, 2008, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-50	Constellation Energy Group, Inc. 1995 Long-Term Incentive Plan, as amended and restated. * (Designated as Exhibit No. 10(b) to the Constellation Quarterly Report on Form 10-Q for the quarter ended September 30, 2004, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-51	Constellation Energy Group, Inc. Executive Long-Term Incentive Plan, as amended and restated. * (Designated as Exhibit 10(b) to the Constellation Quarterly Report on Form 10-Q for the quarter ended June 30, 2011, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-52	Constellation Energy Group, Inc. 2002 Senior Management Long-Term Incentive Plan, as amended and restated. * (Designated as Exhibit 10(a) to the Constellation Quarterly Report on Form 10-Q for the quarter ended June 30, 2011, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-53	Constellation Energy Group, Inc. Management Long-Term Incentive Plan, as amended and restated. * (Designated as Exhibit 10(d) to the Constellation Quarterly Report on Form 10-Q for the quarter ended September 30, 2006, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-54	Constellation Energy Group, Inc. Amended and Restated 2007 Long-Term Incentive Plan. * (Designated as Exhibit No. 10.1 to the Current Report on Form 8-K dated June 4, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

10-55	Form of Grant Agreement for Stock Units with Sales Restriction. * (Designated as Exhibit No. 10(x) to the Annual Report on Form 10-K for the year ended December 31, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-56	Rate Stabilization Property Servicing Agreement dated as of June 29, 2007 by and between RSB BondCo LLC and Baltimore Gas and Electric Company, as servicer (Designated as Exhibit 10.2 to the Current Report on Form 8-K dated July 5, 2007, filed by Baltimore Gas and Electric Company, File No. 1-1910).

10-57	Administration Agreement dated as of June 29, 2007 by and between RSB BondCo LLC and Baltimore Gas and Electric Company, as administrator (Designated as Exhibit 10.3 to the Current Report on Form 8-K dated July 5, 2007, filed by Baltimore Gas and Electric Company, File No. 1-1910).

10-58	Second Amended and Restated Operating Agreement, dated as of November 6, 2009, by and among Constellation Energy Nuclear Group, LLC, Constellation Nuclear, LLC, CE Nuclear, LLC, EDF Development Inc., and for certain limited purposes, E.D.F. International S.A. and Constellation Energy Group, Inc. (Designated as Exhibit No. 10.1 to the Current Report on Form 8-K dated November 12, 2009, filed by Constellation Energy Group, Inc., File No. 1-12869).

10-59	Amendment No. 1 to the Second Amended and Restated Operating Agreement of Constellation Energy Nuclear Group, LLC, by and among Constellation Nuclear, LLC, CE Nuclear, LLC, EDF Inc. (formerly known as EDF Development, Inc.), and E.D.F. International S.A. (Designated as Exhibit No. 10(s) to the Annual Report on Form 10-K for the year ended December 31, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).



Exhibit No.	Description
10-60	Amendment No. 2 to the Second Amended and Restated Operating Agreement of Constellation Energy Nuclear Group, LLC, by and among Constellation Nuclear, LLC, CE Nuclear, LLC, EDF Inc. (formerly known as EDF Development, Inc.), and E.D.F. International S.A. (Designated as Exhibit No. 10(t) to the Annual Report on Form 10-K for the year ended December 31, 2010, filed by Constellation Energy Group, Inc., File Nos. 1-12869 and 1-1910).

10-61	Amendment No. 3 to the Second Amended and Restated Operating Agreement of Constellation Energy Nuclear Group, LLC, by and among Constellation Nuclear, LLC, CE Nuclear, LLC, EDF Inc. (formerly known as EDF Development, Inc.), and E.D.F. International S.A. (Designated as Exhibit No. 10.1 to the Current Report on Form 8-K dated November 3, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

10-62	Termination Agreement dated as of November 3, 2010, by and among EDF Inc. (formerly known as EDF Development, Inc.), E.D.F. International S.A., and Constellation Energy Group, Inc. (Designated as Exhibit No. 10.2 to the Current Report on Form 8-K dated November 3, 2010, filed by Constellation Energy Group, Inc., File No. 1-12869).

10-63	Settlement Agreement between EDF Inc., Exelon Corporation, Exelon Energy Delivery Company, LLC, Constellation Energy Group, Inc. and Baltimore Gas and Electric Company dated January 16, 2012. (Designated as Exhibit No. 10.1 to the Current Report on Form 8-K dated January 19, 2012, File Nos. 1-12869 and 1-1910).

10-64 - 10-70	Reserved.

10-71	Commitment Letter for $7.221 Billion Senior Unsecured Bridge Facility, dated April 29, 2014 (File No. 001-16169, Form 8-K dated April 30, 2014, Exhibit No. 10.1).

10-71-1	364-Day Bridge Term Loan Agreement, dated as of May 30, 2014, among Exelon Corporation, as Borrower, the various financial institutions named therein, as Lenders, and Barclays Bank PLC, as Administrative Agent (File No. 001-16169, Form 8-K dated April 30, 2014, Exhibit No. 10.1).

10-71-2	Amendment No. 4 to Credit Agreement, dated May 30, 2014, among Exelon Corporation, as Borrower, the financial institutions signatory therein, as Lenders and JPMorgan Chase Bank, N.A., as Administrative Agent. (File No. 001-16169, Form 8-K dated June 4, 2014, Exhibit 10.2).

10-71-3	Amendment No. 4 to Credit Agreement, dated May 30, 2014, among Exelon Generation Company, LLC, as Borrower, the financial institutions signatory therein, as Lenders and JPMorgan Chase Bank, N.A., as Administrative Agent. (File No. 001-16169, Form 8-K dated June 4, 2014, Exhibit 10.3).

10-71-4	Amendment No. 3 to Credit Agreement, dated May 30, 2014, among PECO Energy Company, as Borrower, the financial institutions signatory therein, as Lenders and JPMorgan Chase Bank, N.A., as Administrative Agent. (File No. 001-16169, Form 8-K dated June 4, 2014, Exhibit 10.4).

10-71-5	Amendment No. 2 to Credit Agreement, dated as of May 30, 2014, among Baltimore Gas and Electric Company, as Borrower, the financial institutions signatory therein, as Lenders and The Royal Bank of Scotland plc, as Administrative Agent. (File No. 001-16169, Form 8-K dated June 4, 2014, Exhibit 10.5).

10-72-1	Confirmation of Base Issuer Forward Transaction, dated June 11, 2014, between Exelon Corporation and Barclays Capital, Inc., acting as Agent for Barclays Bank PLC (File No. 001-16169, Form 8-K dated June 17, 2014, Exhibit 10.1).



Exhibit No.	Description
10-72-2	Confirmation of Base Issuer Forward Transaction, dated June 11, 2014, between Exelon Corporation and Goldman Sachs & Co. (File No. 001-16169, Form 8-K dated June 17, 2014, Exhibit 10.2).

10-72-3	Confirmation of Additional Issuer Forward Transaction, dated June 13, 2014, between Exelon Corporation and Barclays Capital, Inc., acting as Agent for Barclays Bank PLC (File No. 001-16169, Form 8-K dated June 17, 2014, Exhibit 10.3).

10-72-4	Confirmation of Additional Issuer Forward Transaction, dated June 13, 2014, between Exelon Corporation and Goldman Sachs & Co. (File No. 001-16169, Form 8-K dated June 17, 2014, Exhibit 10.4).

10-73	Bondable Transition Property Sale Agreement, dated as of December 19, 2002, between ACE Funding and ACE (File No. 333-59558, Form 8-K dated December 23, 2002, Exhibit 10.1)

10-74	Bondable Transition Property Servicing Agreement, dated as of December 19, 2002, between ACE Funding and ACE (File No. 333-59558, Form 8-K dated December 23, 2002, Exhibit 10.2)

10-75	Purchase Agreement, dated as of April 20, 2010, by and among Pepco Holdings, Inc., Conectiv, LLC, Conectiv Energy Holding Company, LLC and New Development Holdings, LLC (File No. 001-31403, Form 8-K dated July 8, 2010, Exhibit 2.1)

10-76	Purchase Agreement, dated March 9, 2015, among Potomac Electric Power Company and BNY Mellon Capital Markets, LLC, Morgan Stanley & Co. LLC, and RBS Securities Inc., as representatives of the several underwriters named therein (File No. 001-01072, Form 8-K dated March 10, 2015, Exhibit 1.1)

10-77	Purchase Agreement, May 4, 2015, among Delmarva Power & Light Company and J.P. Morgan Securities LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, and Scotia Capital (USA) Inc., as representatives of the several underwriters named therein (File No. 001-01405, Form 8-K dated May 5, 2015, Exhibit 1.1)

10-78	Bond Purchase Agreement, dated December 1, 2015, among Atlantic City Electric Company and the purchasers signatory thereto (File No. 001-03559, Form 8-K dated December 2, 2015, Exhibit 1.1)

10-79	$300,000,000 Term Loan Agreement by and among PHI, The Bank of Nova Scotia, as Administrative Agent, and the lenders party thereto, dated July 30, 2015 (File No. 001-31403, Form 8-K dated July 30, 2015, Exhibit 10)

10-80	First Amendment to Term Loan Agreement, dated as of October 29, 2015, by and among PHI, The Bank of Nova Scotia, as Administrative Agent, and the lenders party thereto (File No. 001-31403, Form 8-K dated October 29, 2015, Exhibit 10.2)

10-81	$500,000,000 Term Loan Agreement by and among PHI, The Bank of Nova Scotia, as Administrative Agent, and the lenders party thereto, dated January 13, 2016 (File No. 001-31403, Form 8-K dated January 14, 2016, Exhibit 10)
10-82	Second Amended and Restated Credit Agreement, dated as of August 1, 2011, by and among Pepco Holdings, Inc., Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, the lenders party thereto, Wells Fargo Bank, National Association, as agent, issuer and swingline lender, Bank of America, N.A., as syndication agent and issuer, The Royal Bank of Scotland plc and Citicorp USA, Inc., as co-documentation agents, Wells Fargo Securities, LLC and Merrill Lynch, Pierce, Fenner and Smith Incorporated, as active joint lead arrangers and joint book runners, and Citigroup Global Markets Inc. and RBS Securities, Inc. as passive joint lead arrangers and joint book runners (File No. 001-31403, Form 10-Q dated August 3, 2011, Exhibit 10.1)

10-82-1	First Amendment, dated as of August 2, 2012, to Second Amended and Restated Credit Agreement, dated as of August 1, 2011, by and among Pepco Holdings, Inc., Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, the various financial institutions party thereto, Wells Fargo Bank, National Association, as agent, issuer of letters of credit and swingline lender, Bank of America, N.A., as syndication agent and issuer of letters of credit, and The Royal Bank of Scotland plc and Citibank, N.A., as co-documentation agents (File No. 001-31403, Form 10-K dated March 1, 2013, Exhibit 10.25.1)



Exhibit No.	Description

10-82-2	Amendment and Consent to Second Amended and Restated Credit Agreement, dated as of May 20, 2014, by and among Pepco Holdings, Inc., Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, the various financial institutions from time to time party thereto, Bank of America, N.A. and Wells Fargo Bank, National Association (File No. 001-31403, Form 8-K dated May 20, 2014, Exhibit 10.1)

10-82-3	Third Amendment to Second Amended and Restated Credit Agreement, dated as of May 1, 2015, by and among Pepco Holdings, Inc., Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, the various financial institutions from time to time party thereto, Bank of America, N.A. and Wells Fargo Bank, National Association (File No. 001-31403, Form 8-K dated May 1, 2015, Exhibit 10.1)

10-82-4	Consent, dated as of October 29, 2015, by and among Pepco Holdings, Inc., Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, the various financial institutions from time to time party thereto, Bank of America, N.A. and Wells Fargo Bank, National Association (File No. 001-31403, Form 8-K dated October 29, 2015, Exhibit 10.1)

10-83	Asset Purchase and Sale Agreement for Generating Plants and Related Assets, dated as of June 7, 2000, by and between Pepco and Southern Energy, Inc. (File No. 001-01072, Form 8-K dated June 13, 2000, Exhibit 10)

10-83-1	Amendment No. 1 to the Asset Purchase and Sale Agreement for Generating Plants and Related Assets, dated September 18, 2000, by and between Potomac Electric Power Company and Southern Energy, Inc. (File No. 001-01072, Form 8-K dated December 19, 2000, Exhibit 10.1)

10-83-2	Amendment No. 2 to the Asset Purchase and Sale Agreement for Generating Plants and Related Assets, dated December 19, 2000, by and between Potomac Electric Power Company and Southern Energy, Inc. (File No. 001-01072, Form 8-K dated December 19, 2000, Exhibit 10.2)

10-84	First Amendment to Loan Agreement, by and between Pepco Holdings LLC and The Bank of Nova Scotia, as administrative agent and lender, dated March 28, 2016 (File No. 001-31403, Form 8-K dated March 28, 2016, Exhibit 10)

10-85	Amendment No. 7 to Credit Agreement, dated as of March 23, 2011, among Exelon Corporation, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 001-16169, Form 8-K dated May 27, 2016, Exhibit 99.1)

10-86	Amendment No. 7 to Credit Agreement, dated as of March 23, 2011, among Exelon Generation Company, LLC, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 333-85496, Form 8-K dated May 27, 2016, Exhibit 99.2)

10-87	Amendment No. 4 to Credit Agreement, dated as of March 23, 2011, among Commonwealth Edison Company, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 333-85496, Form 8-K dated May 27, 2016, Exhibit 99.3)

10-88	Amendment No. 6 to Credit Agreement, dated as of March 23, 2011, among PECO Energy Company, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 000-16844, Form 8-K dated May 27, 2016, Exhibit 99.4)

10-89	Amendment No. 5 to Credit Agreement, dated as of March 23, 2011, among Baltimore Gas and Electric Company, as Borrower, the various financial institutions named therein, as Lenders, and JPMorgan Chase Bank, N.A., as Administrative Agent (File No. 001-01910, Form 8-K dated May 27, 2016, Exhibit 99.5)

10-90	Fourth Amendment to Second Amended and Restated Credit Agreement, dated as of August 1, 2011, among Pepco Holdings LLC, Potomac Electric Power Company, Delmarva Power & Light Company and Atlantic City Electric Company, as Borrowers, the various financial institutions named therein, as Lenders, and Wells Fargo Bank, National Association, as Administrative Agent (File No. 001-31403, Form 8-K dated May 27, 2016, Exhibit 99.6)

10-91	2016 Form of Exelon Corporation Change in Control Agreement (File No. 001-16169, Form 10-Q dated October 26, 2016, Exhibit 10.1)



Exhibit No.	Description

10-92	Execution Version-ZEC Standard Contract by and between the NYSERDA and Nine Mile Point Nuclear Station, LLC dated Nov. 18, 2016 (File No. 001-16169, Form 8-K dated November 18, 2016, Exhibit 10.1)

10-93	Execution Version-ZEC Standard Contract by and between the NYSERDA and R. E. Ginna Nuclear Power Plant, LLC dated Nov. 18, 2016 (File No. 001-16169, Form 8-K dated November 18, 2016, Exhibit 10.2)

10-94	Credit Agreement, dated as of November 28, 2017, as thereafter amended and conformed among ExGen Renewables IV, LLC, ExGen Renewables IV Holding, LLC, Morgan Stanley Senior Funding, Inc. as administrative agent, Wilmington Trust, National Association, as depository bank and collateral agent, and the lenders and other agents party thereto. (Certain portions of this exhibit have been omitted by redacting a portion of text, as indicated by asterisks in the text. This exhibit has been filed separately with the U.S. Securities and Exchange Commission pursuant to a request for confidential treatment.)

10-95	Form of Separation Agreement under Exelon Corporation Senior Management Severance Plan (As Amended and Restated Effective November 1, 2015) (File No. 001-16169, Form 10-Q dated May 3, 2018, Exhibit 10.1)

10-96	Purchase Agreement, dated June 8, 2018 among Delmarva Power & Light Company and the purchasers signatory thereto (File No. 001-01405, Form 8-K dated June 21, 2018, Exhibit 1.1)

10-97	Purchase Agreement, dated June 8, 2018, among Potomac Electric Power Company and the purchasers signatory thereto (File No. 001-01072, Form 8-K dated June 21, 2018, Exhibit 1.1)

10-98	Letter Agreement, dated May 7, 2018, between Exelon Corporation and Denis P. O’Brien (File No. 001-16169, Form 10-Q dated August 2, 2018, Exhibit 10.3)

10-99	Letter Agreement, dated May 7, 2018, between Exelon Corporation and Jonathan W. Thayer (File No. 001-16169, Form 10-Q dated August 2, 2018, Exhibit 10.4)

14	Exelon Code of Conduct, as amended March 12, 2012 (File No. 1-16169, Form 8-K dated March 14, 2012, Exhibit No. 14-1).

	Subsidiaries

21-1	Exelon Corporation

21-2	Exelon Generation Company, LLC

21-3	Commonwealth Edison Company

21-4	PECO Energy Company

21-5	Baltimore Gas and Electric Company

21-6	Pepco Holdings LLC

21-7	Potomac Electric Power Company

21-8	Delmarva Power & Light Company

21-9	Atlantic City Electric Company

	Consent of Independent Registered Public Accountants

23-1	Exelon Corporation

23-2	Exelon Generation Company, LLC

23-3	Commonwealth Edison Company

23-4	PECO Energy Company

23-5	Baltimore Gas and Electric Company



Exhibit No.	Description
23-6	Potomac Electric Power Company

23-7	Delmarva Power & Light Company

23-8	Atlantic City Electric Company

	Power of Attorney (Exelon Corporation)

24-1	Anthony K. Anderson

24-2	Ann C. Berzin

24-3	Laurie Brlas

24-4	Christopher M. Crane

24-5	Yves C. de Balmann

24-6	Nicholas DeBenedictis

24-7	Linda P. Jojo

24-8	Paul Joskow

24-9	Robert J. Lawless

24-10	Richard W. Mies

24-11	John W. Rogers, Jr.

24-12	Mayo A. Shattuck III

24-13	Stephen D. Steinour

24-14	John F. Young

	Power of Attorney (Commonwealth Edison Company)

24-15	James W. Compton

24-16	Christopher M. Crane

24-17	A. Steven Crown

24-18	Nicholas DeBenedictis

24-19	Joseph Dominguez

24-20	Peter V. Fazio, Jr.

24-21	Michael H. Moskow

24-22	Anne R. Pramaggiore

24-23	Reserved.

24-24	Reserved.



	Power of Attorney (PECO Energy Company)

24-25	Christopher M. Crane

24-26	M. Walter D’Alessio

24-27	Nicholas DeBenedictis



Exhibit No.	Description
24-28	Nelson A. Diaz

24-29	John S. Grady

24-30	Rosemarie B. Greco

24-31	Michael A. Innocenzo

24-32	Charisse R. Lillie

24-33	Anne R. Pramaggiore

	Power of Attorney (Baltimore Gas and Electric Company)

24-34	Ann C. Berzin

24-35	Calvin G. Butler, Jr.

24-36	Christopher M. Crane

24-37	Michael E. Cryor

24-38	James R. Curtiss

24-39	Joseph Haskins, Jr.

24-40	Anne R. Pramaggiore

24-41	Michael D. Sullivan

24-42	Maria Harris Tildon


	Power of Attorney (Pepco Holdings LLC)

24-43	Christopher M. Crane

24-44	Linda W. Cropp

24-45	Michael E. Cryor

24-46	Ernest Dianastasis

24-47	Debra P. DiLorenzo

24-48	Anne R. Pramaggiore

24-49	David M. Velazquez

	Power of Attorney (Potomac Electric Power Company)

24-50	J. Tyler Anthony

24-51	Phillip S. Barnett

24-52	Christopher M. Crane

24-53	Melissa A. Lavinson

24-54	Kevin M. McGowan

24-55	Anne R. Pramaggiore

24-56	David M. Velazquez

	Power of Attorney (Delmarva Power & Light Company)

24-57	Anne R. Pramaggiore



Exhibit No.	Description
24-58	David M. Velazquez

	Power of Attorney (Atlantic City Electric Company)

24-59	David M. Velazquez



Certifications Pursuant to Rule 13a-14(a) and 15d-14(a) of the Securities and Exchange Act of 1934 as to the Annual Report on Form 10-K for the year ended December 31, 2018 filed by the following officers for the following registrants:
Exhibit No.	Description
31-1	Filed by Christopher M. Crane for Exelon Corporation

31-2	Filed by Joseph Nigro for Exelon Corporation

31-3	Filed by Kenneth W. Cornew for Exelon Generation Company, LLC

31-4	Filed by Bryan P. Wright for Exelon Generation Company, LLC

31-5	Filed by Joseph Dominguez for Commonwealth Edison Company

31-6	Filed by Jeanne M. Jones for Commonwealth Edison Company

31-7	Filed by Michael A. Innocenzo for PECO Energy Company

31-8	Filed by Robert J. Stefani for PECO Energy Company

31-9	Filed by Calvin G. Butler, Jr. for Baltimore Gas and Electric Company

31-10	Filed by David M. Vahos for Baltimore Gas and Electric Company

31-11	Filed by David M. Velazquez for Pepco Holdings LLC

31-12	Filed by Phillip S. Barnett for Pepco Holdings LLC

31-13	Filed by David M. Velazquez for Potomac Electric Power Company

31-14	Filed by Phillip S. Barnett for Potomac Electric Power Company

31-15	Filed by David M. Velazquez for Delmarva Power & Light Company

31-16	Filed by Phillip S. Barnett for Delmarva Power & Light Company

31-17	Filed by David M. Velazquez for Atlantic City Electric Company

31-18	Filed by Phillip S. Barnett for Atlantic City Electric Company

Certifications Pursuant to Section 1350 of Chapter 63 of Title 18 United States Code as to the Annual Report on Form 10-K for the year ended December 31, 2018 filed by the following officers for the following registrants:
Exhibit No.	Description
32-1	Filed by Christopher M. Crane for Exelon Corporation

32-2	Filed by Joseph Nigro for Exelon Corporation

32-3	Filed by Kenneth W. Cornew for Exelon Generation Company, LLC

32-4	Filed by Bryan P. Wright for Exelon Generation Company, LLC

32-5	Filed by Joseph Dominguez for Commonwealth Edison Company

32-6	Filed by Jeanne M. Jones for Commonwealth Edison Company

32-7	Filed by Michael A. Innocenzo for PECO Energy Company

32-8	Filed by Robert J. Stefani for PECO Energy Company



Exhibit No.	Description
32-9	Filed by Calvin G. Butler, Jr. for Baltimore Gas and Electric Company

32-10	Filed by David M. Vahos for Baltimore Gas and Electric Company

32-11	Filed by David M. Velazquez for Pepco Holdings LLC

32-12	Filed by Phillip S. Barnett for Pepco Holdings LLC

32-13	Filed by David M. Velazquez for Potomac Electric Power Company

32-14	Filed by Phillip S. Barnett for Potomac Electric Power Company

32-15	Filed by David M. Velazquez for Delmarva Power & Light Company

32-16	Filed by Phillip S. Barnett for Delmarva Power & Light Company

32-17	Filed by David M. Velazquez for Atlantic City Electric Company

32-18	Filed by Phillip S. Barnett for Atlantic City Electric Company

101.INS	XBRL Instance

101.SCH	XBRL Taxonomy Extension Schema

101.CAL	XBRL Taxonomy Extension Calculation

101.DEF	XBRL Taxonomy Extension Definition

101.LAB	XBRL Taxonomy Extension Labels

101.PRE	XBRL Taxonomy Extension Presentation


*	Compensatory plan or arrangements in which directors or officers of the applicable registrant participate and which are not available to all employees.


(a)	These filings are not available electronically on the SEC website as they were filed in paper previous to the electronic system that is currently in place.

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