G. G. Allen Steam Station
Coal-fired electricity generating facility located in Gaston County, North Carolina
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G. G. Allen Steam Station was a 1.140 GW coal-fired electricity generating facility, located in South Point Township, Gaston County, North Carolina, on man-made Lake Wylie (part of the Catawba River). Units 1 and 2 (165 MW each) began operating in 1957; units 3, 4, and 5 (275 MW each) in 1959, 1960, and 1961 respectively.[1] Named for George Garland Allen, a former president and first chairman of the board for Duke Power, the Allen facility is the only Duke Energy station with five units under one roof. The plant is equipped with a flue-gas desulfurization system, completed in 2009, that decreases the air emissions coming from the plant. In February 2021, Duke Energy in a filing to the North Carolina Utilities Commission advanced their planned closure for Unit 3 from December 31, 2021 to March 31, 2021.[2][3] Two additional units were retired in 2021, followed by another in September 2023, and the final in December of 2024.[4]
| G. G. Allen Steam Station | |
|---|---|
Allen Steam Station in 2013 | |
 | |
| Country | United States |
| Location | South Point Township, Gaston County, North Carolina |
| Coordinates | 35°11′25″N 81°0′30″W |
| Status | Decommissioned |
| Commission date | 1957-1961 |
| Decommission date | December 31, 2024 |
| Owner | Duke Energy |
| Thermal power station | |
| Primary fuel | Coal |
| Power generation | |
| Units operational | 2 × 165 MWe 3 × 275 MWe |
| Nameplate capacity |
|
Environmental impact
G. G. Allen Steam Station has made significant improvements to reduce emissions from the company's coal-fired plants. Allen has been equipped with scrubbers to reduce the station's sulfur dioxide emissions by approximately 95 percent.Allen Steam Station was an active part of the clean smokestacks act.
1995–2001 data
| Year | NOx | SO2 | CO2 |
|---|---|---|---|
| 2001 | 10,673 | 37,027 | 5,487,331 |
| 2000 | 13,054 | 34,058 | 5,914,264 |
| 1999 | 12,087 | 32,169 | 5,619,742 |
| 1998 | 9,655 | 25,224 | 4,508,312 |
| 1997 | 14,090 | 40,083 | 6,627,324 |
| 1996 | 15,184 | 35,291 | 5,545,956 |
| 1995 | 10,976 | 21,274 | 3,661,778 |
| Pollutant | Air | Land | Water | Total on-site releases |
|---|---|---|---|---|
| Ammonia | 1,605 | 1,500 | 3,105 | |
| Arsenic compounds | 1,105 | 49,005 | 3,200 | 53,310 |
| Barium compounds | 4,305 | 480,005 | 8,400 | 492,710 |
| Chromium compounds | 995 | 84,005 | 600 | 85,600 |
| Cobalt compounds | 205 | 32,005 | 1,500 | 33,710 |
| Copper compounds | 605 | 87,005 | 2,200 | 89,810 |
| Hydrochloric acid | 5,300,005 | 5,300,005 | ||
| Hydrogen fluoride | 340,005 | 340,005 | ||
| Lead compounds | 795 | 34,005 | 120 | 34,920 |
| Manganese compounds | 1,205 | 100,005 | 4,200 | 105,410 |
| Mercury compounds | 200 | 110 | 3 | 313 |
| Nickel compounds | 735 | 55,005 | 300 | 56,040 |
| Sulfuric acid | 340,005 | 340,005 | ||
| Vanadium compounds | 1,005 | 99,005 | 750 | 100,760 |
| Zinc compounds | 1,005 | 60,005 | 750 | 61,760 |
| TOTAL | 5,993,780 | 1,080,160 | 23,523 | 7,097,463 |
