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Edgewater Generating Station

Coordinates: 43°42′56″N 87°42′23″W / 43.71556°N 87.70639°W / 43.71556; -87.70639
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Edgewater Generating Station
Map
CountryUnited States
LocationSheboygan, Wisconsin
Coordinates43°42′56″N 87°42′23″W / 43.71556°N 87.70639°W / 43.71556; -87.70639
StatusOperational
Commission dateUnit 1: 1931
Unit 2: 1941
Unit 3: 1951
Unit 4: 1969
Unit 5: 1985
Decommission dateUnit 3: 2015
Unit 4: 2018
OwnersAlliant Energy (majority)
WEC Energy Group (minority)
Thermal power station
Primary fuelCoal
Turbine technologySteam turbine
Cooling sourceLake Michigan
Power generation
Nameplate capacity380 MW
Capacity factor69.41% (2021)
Annual net output2311 (2021)
External links
CommonsRelated media on Commons
[edit on Wikidata]

Edgewater Generating Station is a 380 megawatt (MW) coal power plant located on the south side of Sheboygan, Wisconsin, on the shore of Lake Michigan, whose waters are used to provide cooling. It provides electricity for customers in the northeastern part of Alliant Energy's Wisconsin Power & Light service area and service to several local municipal utilities. In 2009, it was the seventh largest generating station in Wisconsin, with a net summer capacity of 767 MW.[1]

Units

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Unit Capacity (MW) Commissioning[2] Notes
1 30 1931 Retired[3]
2 30 1941 Retired[3]
3 60 (nameplate)
70.8 (summer)
71.7 (winter) [3] 		1951 [3] Retired[4] Cyclone Boiler

844 million British thermal units per hour (247 MW)

4 330 (nameplate)
320.4 (summer)
320.7 (winter) [3] 		1969 [3] Retired[5] Cyclone Boiler
3,529 million British thermal units per hour (1,034 MW)
5 380 (nameplate)
413.6 (summer)
414.3 (winter) [3] 		1985 [3] Pulverized Dry Bottom Boiler
4,366 million British thermal units per hour (1,280 MW)
2016 construction

In 1952 one of the units was upgraded with a Babcock & Wilcox cyclone boiler. At the time, the facility was using a 50/50 mix of Illinois and West Virginia coal. The West Virginia coal was shipped via lake freighter from Lorain, Ohio.[6]

At present, coal is delivered to the plant entirely by railroad, originating primarily from the Powder River Basin in Wyoming, via a Union Pacific spur line that was originally the main line of the Milwaukee Northern interurban railway.

Unit 3 and 4 share the same chimney.

Unit 3 turbine and generator were manufactured by Allis-Chalmers. Unit 4 was manufactured by General Electric, with an Alterrex excitation system. Unit 5 was also manufactured by General Electric, with a Generrex excitation system.[citation needed]

Retirement and decommissioning

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Unit 3 was retired at the end of 2015 due to its age and efficiency.[4] Unit 4 was retired in 2018 as Alliant Energy worked to reduce 80 percent of carbon dioxide emissions by 2050. Unit 4's electricity generation would be replaced by Riverside Energy Center in the Town of Beloit, which uses natural gas.[5]

On May 22, 2020, Alliant Energy announced that the plant would be decommissioned by the end of 2022, and the property would be redeveloped for another use; Unit 5's generating capacity has also been replaced by a further expansion of Riverside.[7] On June 23, 2022, Alliant announced that Edgewater's decommissioning date would be delayed until June 2025, due to the ongoing supply chain issues and to hedge against an energy shortage in upcoming years, with Edgewater mainly being in service during peak periods.[8] The utility also plans a 99 MW battery by 2024.[9]

Electricity generation

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In 2021, Edgewater generated 2,311 GWh, approximately 3.7% of the total electric power generated in Wisconsin (62,584 GWh)[10] for that year. The plant had a 2021 annual capacity factor of 69.41%.

Electrical Generation (MW-h) of Edgewater Generation Station[11]
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual (Total)
2001 421,123 444,173 446,782 261,305 290,120 404,445 432,472 488,116 349,327 449,850 422,409 434,451 4,844,573
2002 453,762 399,382 273,143 306,503 389,155 419,313 490,968 429,073 407,380 408,755 390,591 418,889 4,786,914
2003 298,900 456,077 299,103 455,488 439,803 396,437 466,353 473,587 353,381 399,188 436,408 419,095 4,893,820
2004 462,658 251,202 269,249 343,218 411,550 436,325 479,183 445,972 419,681 442,563 377,296 420,811 4,759,708
2005 468,022 392,173 383,075 396,735 346,578 398,064 288,539 318,025 307,563 287,223 327,345 381,344 4,294,686
2006 264,155 296,154 370,761 366,110 439,882 399,024 466,530 413,755 395,309 239,629 255,995 373,906 4,281,210
2007 468,131 452,671 462,173 364,453 224,700 335,228 403,344 428,599 362,483 436,604 408,099 399,996 4,746,481
2008 422,307 396,314 442,794 262,068 392,238 373,217 425,015 418,498 366,491 314,885 391,390 412,731 4,617,948
2009 450,697 332,405 290,450 251,222 245,074 344,625 332,379 377,838 322,644 404,683 322,968 413,297 4,088,282
2010 380,309 394,406 378,866 248,360 409,800 400,273 435,301 446,457 335,137 285,028 229,764 370,602 4,314,303
2011 471,011 418,396 448,811 302,188 416,251 375,186 463,703 415,892 283,651 263,322 206,532 287,278 4,352,221
2012 299,981 317,445 329,228 154,216 210,855 277,757 431,796 379,885 225,366 189,953 409,706 371,978 3,598,166
2013 347,716 246,618 452,454 461,179 402,119 334,988 409,965 327,280 326,578 315,452 273,330 388,779 4,286,458
2014 473,681 429,938 308,447 279,513 420,498 306,300 288,260 358,408 295,287 166,454 130,588 375,306 3,832,680
2015 348,636 345,026 350,291 219,023 273,780 403,928 431,148 415,972 379,936 292,263 223,580 213,070 3,896,653
2016 338,132 267,699 209,270 139,597 89,497 237,499 402,795 405,067 393,203 306,100 260,727 405,555 3,455,141
2017 377,088 258,211 390,717 363,260 255,978 297,976 357,816 308,822 289,053 190,570 331,404 370,470 3,791,365
2018 423,054 277,386 146,403 163,447 341,841 326,402 363,800 381,631 298,854 200,432 258,936 104,872 3,287,058
2019 140,467 168,126 210,449 145,382 125,299 103,080 174,504 123,913 116,911 37,063 81,928 0 1,427,122
2020 146,803 120,837 -2,701 16,514 30,030 76,862 146,823 168,253 137,064 23,534 30,725 203,681 1,098,425
2021 192,029 197,050 180,292 181,104 233,594 247,443 276,939 258,081 164,304 136,895 183,162 59,655 2,310,548
2022 219,316 243,263 239,971 145,335 109,838 119,621 231,759 188,331 157,779 27,466 1,682,679
2023

See also

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References

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Wikimedia Commons has media related to Edgewater Generating Station.
  1. ^ "Wisconsin - Ten Largest Plants by Generating Capacity, 2009" (PDF). U.S. Energy Information Administration. 2009. Retrieved 15 May 2011.
  2. ^ "Water Supply Aids Power Operations". Sheboygan Press, The. Sheboygan, Wisconsin. October 29, 1957. p. 47.
  3. ^ a b c d e f g h "Existing Electric Generating Units in the United States, 2008" (Excel). Energy Information Administration, U.S. Department of Energy. 2008. Retrieved 15 May 2011.
  4. ^ a b Bock, Phillip (June 22, 2016). "New tech means cleaner air from power plant". Sheboygan Press Media. Retrieved July 31, 2017.
  5. ^ a b "Utility closes coal plant amid transition to natural gas". Associated Press. The Daily Reporter. October 1, 2018. Retrieved October 2, 2018.
  6. ^ "Generating Unit Consumes 27 Tons Of Coal An Hour". Sheboygan Press, The. Sheboygan, Wisconsin. April 29, 1952. p. 39.
  7. ^ Hubbuch, Chris (21 May 2020). "Alliant to shutter Sheboygan coal plant; early closure expected to benefit ratepayers, environment". Wisconsin State Journal. Retrieved 22 May 2020.
  8. ^ Hess, Corrinne (23 June 2022). "We Energies and Alliant Energy coal plants in Wisconsin to stay open longer due to energy supply fears". Milwaukee Journal Sentinel. Retrieved 24 June 2022.
  9. ^ Murray, Cameron (2 February 2023). "Alliant Energy plans 400MWh BESS at retiring Wisconsin coal plant". Energy Storage News.
  10. ^ "Electricity Data Browser". www.eia.gov. Retrieved 2023-01-15.
  11. ^ "Electricity Data Browser". www.eia.gov. Retrieved 2023-01-15.
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