IPL
Electric - At December 31, 2013, IPL’s EGUs by primary fuel type were as follows:
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| | | | | | Primary | | Nameplate | | | Generating | |
| | | | In-service | | Dispatch | | Capacity | | | Capacity | |
| Name of EGU | | Location | | Dates | | Type (a) | | in MW | | | in MW (b) | |
| Ottumwa Generating Station (Unit 1) (c) | | Ottumwa, IA | | 1981 | | BL | | 348 | | | 309 | |
| Lansing Generating Station (Unit 4) | | Lansing, IA | | 1977 | | BL | | 275 | | | 230 | |
| M.L. Kapp Generating Station (Unit 2) (d) | | Clinton, IA | | 1967 | | BL | | 218 | | | 177 | |
| Burlington Generating Station (Unit 1) | | Burlington, IA | | 1968 | | BL | | 212 | | | 177 | |
| George Neal Generating Station (Unit 4) (e) | | Sioux City, IA | | 1979 | | BL | | 165 | | | 160 | |
| George Neal Generating Station (Unit 3) (f) | | Sioux City, IA | | 1975 | | BL | | 154 | | | 136 | |
| Prairie Creek Generating Station (Units 1,3,4) | | Cedar Rapids, IA | | 1958-1997 | | BL | | 213 | | | 126 | |
| Louisa Generating Station (Unit 1) (g) | | Louisa, IA | | 1983 | | BL | | 32 | | | 29 | |
| Total Coal | | | | | | | | 1,617 | | | 1,344 | |
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| Emery Generating Station (Units 1-3) | | Mason City, IA | | 2004 | | IN | | 603 | | | 494 | |
| Fox Lake Generating Station (Units 1,3) (d) | | Sherburn, MN | | 1950-1962 | | IN | | 93 | | | 82 | |
| Sutherland Generating Station (Units 1,3) (d) | | Marshalltown, IA | | 1955-1961 | | IN | | 119 | | | 79 | |
| Dubuque Generating Station (Units 3-4) (d) | | Dubuque, IA | | 1952-1959 | | IN | | 66 | | | 58 | |
| Burlington Combustion Turbines (Units 1-4) (d) | | Burlington, IA | | 1994-1996 | | PK | | 79 | | | 58 | |
| Grinnell Combustion Turbines (Units 1-2) (d) | | Grinnell, IA | | 1990-1991 | | PK | | 48 | | | 44 | |
| Red Cedar Combustion Turbine (Unit 1) | | Cedar Rapids, IA | | 1996 | | PK | | 23 | | | 11 | |
| Total Gas | | | | | | | | 1,031 | | | 826 | |
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| Marshalltown Combustion Turbines (Units 1-3) | | Marshalltown, IA | | 1978 | | PK | | 189 | | | 143 | |
| Lime Creek Combustion Turbines (Units 1-2) | | Mason City, IA | | 1991 | | PK | | 90 | | | 56 | |
| Centerville Combustion Turbines (Units 1-2) (d) | | Centerville, IA | | 1990 | | PK | | 54 | | | 29 | |
| Diesel Stations (9 Units) (d) | | Iowa and Minnesota | | 1963-1996 | | PK | | 16 | | | 11 | |
| Total Oil | | | | | | | | 349 | | | 239 | |
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| Whispering Willow - East (121 Units) (h) | | Franklin Co., IA | | 2009 | | IN | | 200 | | | — | |
| Total Wind | | | | | | | | 200 | | | — | |
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| Total generating capacity | | | | | | | | 3,197 | | | 2,409 | |
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| (a) | BL are designed for nearly continuous operation at or near full capacity to provide the system base load. IN follow system load changes with frequent starts and curtailments of output during low demand. PK are generally low efficiency, quick response units that run primarily when there is high demand. |
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| (b) | Based on the generating capacity of the EGUs included in MISO’s resource adequacy process for the planning period from June 2013 through May 2014. |
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| (c) | Represents IPL’s 48% ownership interest in this 726 MW (nameplate capacity) / 644 MW (generating capacity) EGU, which is operated by IPL. |
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| (d) | Refer to “Strategic Overview” in MDA for discussion of EGUs that may be retired or changed from coal-fired to an alternative fuel source in the next few years. |
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| (e) | Represents IPL’s 25.695% ownership interest in this 641 MW (nameplate capacity) / 623 MW (generating capacity) EGU, which is operated by MidAmerican. |
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| (f) | Represents IPL’s 28% ownership interest in this 550 MW (nameplate capacity) / 486 MW (generating capacity) EGU, which is operated by MidAmerican. |
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| (g) | Represents IPL’s 4% ownership interest in this 810 MW (nameplate capacity) / 725 MW (generating capacity) EGU, which is operated by MidAmerican. |
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| (h) | Generating capacity represents 0% of the capacity of this wind project based upon the MISO resource adequacy process, which is determined separately for each wind site, during the planning period from June 2013 through May 2014. The 0% allocation resulted from the lack of firm transmission at this wind site during the planning period from June 2013 through May 2014. |
At December 31, 2013, IPL owned approximately 19,696 miles of overhead electric distribution line and 2,843 miles of underground electric distribution cable, as well as 714 substation distribution transformers, substantially all of which are located in Iowa and Minnesota.
Gas - IPL’s gas properties consist primarily of mains and services, meters, regulating and gate stations and other related distribution equipment. At December 31, 2013, IPL’s gas distribution facilities included approximately 5,051 miles and 238 miles of gas mains located in Iowa and Minnesota, respectively.
Other - IPL’s other property included in “Property, plant and equipment - Other” on its Consolidated Balance Sheets consists primarily of steam service assets, operating and storeroom facilities, vehicles, computer hardware and software, communication equipment and other miscellaneous tools and equipment.
WPL
Electric - At December 31, 2013, WPL’s EGUs by primary fuel type were as follows:
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| | | | | | Primary | | Nameplate | | | Generating | |
| | | | In-service | | Dispatch | | Capacity | | | Capacity | |
| Name of EGU | | Location | | Dates | | Type (a) | | in MW | | | in MW (b) | |
| Columbia Energy Center (Units 1-2) (c) | | Portage, WI | | 1975-1978 | | BL | | 473 | | | 504 | |
| Edgewater Generating Station (Unit 5) | | Sheboygan, WI | | 1985 | | BL | | 380 | | | 402 | |
| Edgewater Generating Station (Unit 4) (d) (e) | | Sheboygan, WI | | 1969 | | BL | | 225 | | | 211 | |
| Nelson Dewey Generating Station (Units 1-2) (e) | | Cassville, WI | | 1959-1962 | | BL | | 200 | | | 207 | |
| Edgewater Generating Station (Unit 3) (e) | | Sheboygan, WI | | 1951 | | IN | | 60 | | | 54 | |
| Total Coal | | | | | | | | 1,338 | | | 1,378 | |
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| Riverside Energy Center (Units 1-3) (f) | | Beloit, WI | | 2004 | | IN | | 675 | | | 568 | |
| Neenah Energy Facility (Units 1-2) | | Neenah, WI | | 2000 | | PK | | 371 | | | 279 | |
| South Fond du Lac Combustion Turbines (2 Units) (g) | | Fond du Lac, WI | | 1994 | | PK | | 191 | | | 143 | |
| Rock River Combustion Turbines (Units 3-6) (h) | | Beloit, WI | | 1967-1972 | | PK | | 169 | | | 85 | |
| Sheepskin Combustion Turbine (Unit 1) | | Edgerton, WI | | 1971 | | PK | | 42 | | | 33 | |
| Total Gas | | | | | | | | 1,448 | | | 1,108 | |
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| Bent Tree - Phase I (122 Units) (i) | | Freeborn Co., MN | | 2010-2011 | | IN | | 201 | | | — | |
| Cedar Ridge (41 Units) (j) | | Fond du Lac Co., WI | | 2008 | | IN | | 68 | | | 8 | |
| Total Wind | | | | | | | | 269 | | | 8 | |
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| Prairie du Sac Hydro Plant (8 Units) | | Prairie du Sac, WI | | 1914-1940 | | IN | | 31 | | | 14 | |
| Kilbourn Hydro Plant (4 Units) | | Wisconsin Dells, WI | | 1926-1939 | | IN | | 10 | | | 6 | |
| Total Hydro | | | | | | | | 41 | | | 20 | |
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| Total generating capacity | | | | | | | | 3,096 | | | 2,514 | |
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| (a) | BL are designed for nearly continuous operation at or near full capacity to provide the system base load. IN follow system load changes with frequent starts and curtailments of output during low demand. PK are generally low efficiency, quick response units that run primarily when there is high demand. |
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| (b) | Based on the generating capacity of the EGUs included in MISO’s resource adequacy process for the planning period from June 2013 through May 2014. |
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| (c) | Represents WPL’s 46.2% ownership interest in this 1,023 MW (nameplate capacity) / 1,091 MW (generating capacity) EGU, which is operated by WPL. |
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| (d) | Represents WPL’s 68.2% ownership interest in this 330 MW (nameplate capacity) / 309 MW (generating capacity) EGU, which is operated by WPL. |
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| (e) | Refer to “Strategic Overview” in MDA for discussion of EGUs that may be retired or changed from coal-fired to an alternative fuel source in the next few years. |
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| (f) | WPL was credited 568 MW of generating capacity for this EGU for the planning period from June 2013 through May 2014. WPL is utilizing 468 MW of the accredited generating capacity from Riverside to satisfy its PRM requirements and has sold 100 MW of the accredited capacity to a third party with a PPA through May 2014. |
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| (g) | Represents Units 2 and 3, which WPL owns. WPL also operates South Fond du Lac Combustion Turbines Units 1 and 4. |
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| (h) | Rock River Combustion Turbine Unit 6 was not operating during the testing period for MISO’s resource adequacy process for the planning period from June 2013 through May 2014, resulting in no capacity being credited to the EGU for that planning period. |
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| (i) | Generating capacity represents 0% of the capacity of this wind project based upon the MISO resource adequacy process, which is determined separately for each wind site, during the planning period from June 2013 through May 2014. The 0% allocation resulted from the lack of firm transmission at this wind site during the planning period from June 2013 through May 2014. |
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| (j) | Generating capacity represents 12% of the capacity of this wind project based upon the MISO resource adequacy process, which is determined separately for each wind site, during the planning period from June 2013 through May 2014. |
At December 31, 2013, WPL owned approximately 16,379 miles of overhead electric distribution line and 5,070 miles of underground electric distribution cable, as well as 303 substation distribution transformers, substantially all of which are located in Wisconsin. Refer to Note 10(b) of the “Combined Notes to Consolidated Financial Statements” for information regarding WPL’s lease of Sheboygan Falls from Resources’ Non-regulated Generation business.
Gas - WPL’s gas properties consist primarily of mains and services, meters, regulating and gate stations and other related distribution equipment. At December 31, 2013, WPL’s gas distribution facilities included approximately 4,131 miles of gas mains located in Wisconsin.
Other - WPL’s other property included in “Property, plant and equipment - Other” on its Consolidated Balance Sheets consists primarily of operating and storeroom facilities, vehicles, computer hardware and software, communication equipment and other miscellaneous tools and equipment.
Resources - Resources’ principal properties included in “Property, plant and equipment - Non-regulated and other” on Alliant Energy’s Consolidated Balance Sheet at December 31, 2013 were as follows:
Non-regulated Generation - Includes Sheboygan Falls, a 347 MW, simple-cycle, natural gas-fired facility near Sheboygan Falls, Wisconsin that was placed in service in 2005 and is leased to WPL, and the 99 MW (60 Units) Franklin County wind project in Franklin County, Iowa that was placed in service in 2012. Sheboygan Falls was credited with 282 MW of generating capacity for MISO’s resource adequacy process for the planning period from June 2013 through May 2014.
Transportation - Includes a short-line railway in Iowa with 114 railroad track miles, 13 active locomotives and 102 railcars; a barge terminal on the Mississippi River; and a coal terminal in Williams, Iowa.
Other non-regulated investments - Includes two corporate airplanes and real estate investments.
Corporate Services - Corporate Services’ property included in “Property, plant and equipment - Non-regulated and other” on Alliant Energy’s Consolidated Balance Sheet at December 31, 2013 consisted primarily of computer software and the corporate headquarters building located in Madison, Wisconsin.
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