Horseshoe Lake power station
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Horseshoe Lake power station is an operating power station of at least 728-megawatts (MW) in Harrah, Oklahoma, United States with multiple units, some of which are not currently operating.
Location
Table 1: Project-level location details
| Plant name | Location | Coordinates (WGS 84) |
|---|---|---|
| Horseshoe Lake power station | Harrah, Oklahoma, Oklahoma, United States | 35.50866, -97.17969 (exact)[1] |
Unit-level coordinates (WGS 84):
- 10, 11, 12, 13, 14, 6, 8, 9, ST7: 35.50866, -97.17969
Project Details
Table 2: Unit-level details
| Unit name | Status | Fuel(s) | Capacity (MW) | Technology | CHP | Start year | Retired year | Equipment | Emergency/Backup |
|---|---|---|---|---|---|---|---|---|---|
| 10 | Operating[1] | fossil gas: natural gas[1] | 61[1] | gas turbine[1] | no[1] | 2001[1] | 2035 (planned)[2] | – | no |
| 11 | Construction[3][4][5] | fossil gas: natural gas[6] | 224[6] | gas turbine[6] | – | 2026 (planned)[6][7][2][3] | – | GE Vernova: 7FA.05[2][5] | no |
| 12 | Construction[4][5] | fossil gas: natural gas[6] | 224[6] | gas turbine[6] | – | 2026 (planned)[6][7][2] | – | GE Vernova: 7FA.05[2][5] | no |
| 13 | Pre-construction[8][9] | fossil gas: natural gas[8] | 224[9] | gas turbine[8] | – | 2029 (planned)[9] | – | – | no |
| 14 | Pre-construction[8][9] | fossil gas: natural gas[8] | 224[9] | gas turbine[8] | – | 2029 (planned)[9] | – | – | no |
| 6 | Operating[10] | fossil gas: natural gas, fossil liquids: fuel oil[10] | 163[10] | steam turbine[10] | no[1] | 1958[1] | – | – | no |
| 8 | Operating[1] | fossil gas: natural gas[1] | 443[1] | steam turbine[1] | no[1] | 1969[1] | 2027 (planned)[2] | – | no |
| 9 | Operating[1] | fossil gas: natural gas[1] | 61[1] | gas turbine[1] | no[1] | 2001[1] | 2035 (planned)[2] | – | no |
| ST7 | Mothballed[1][6] | fossil gas: natural gas, fossil liquids: fuel oil[11] | 220[1] | steam turbine[1] | no[1] | 1963[1] | – | – | no |
CHP is an abbreviation for Combined Heat and Power. It is a technology that produces electricity and thermal energy at high efficiencies. Coal units track this information in the Captive Use section when known.
Table 3: Unit-level ownership and operator details
| Unit name | Operator | Owner | Parent |
|---|---|---|---|
| 10 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 11 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 12 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 13 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 14 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 6 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 8 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| 9 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
| ST7 | Oklahoma Gas and Electric[7] | Oklahoma Gas and Electric Co [100%][12] | OGE Energy Corp [100.0%] |
Impacts
Potential emissions and details on the project's status and permit applications can be viewed on Oil and Gas Watch page here.
The Oil and Gas Watch database, created by Environmental Integrity Project (EIP), is a free, public-facing tool designed to track the rapid expansion of fossil fuel and petrochemical infrastructure in the United States. Oil and Gas Watch maps new and expanding oil, gas, and petrochemical infrastructure projects across the country and monitors each project’s construction status so the public can stay informed about major oil and gas developments being proposed in their communities. We track key environmental approvals companies must obtain before starting construction or operations and provide access to thousands of government records and permits unearthed by our analysts.
Ownership Tree
This ownership tree is part of the Global Energy Ownership Tracker, a project of Global Energy Monitor.
Background
Oklahoma Gas & Electric Company (OG&E) began construction of two new power generation units (units GT1 and GT2) at its Horseshoe Lake power station in October 2024. The new gas units, designed to safely burn hydrogen when it becomes a readily available fuel source, will replace two 60-year-old units at the plant (units 6 and 7) and provide approximately 450 MW of generation capacity. The units are equipped to reduce emissions compared to the units they will replace, increase capacity and have the capability to supply power at peak times. The project had been approved by the Oklahoma Corporation Commission in 2023 to support OG&E’s growing service area. The new units are anticipated to begin providing power to customers by late 2026.[3][13]
The first shipment of the equipment (transformers) for the project took place in June 2025. The remaining equipment, including two GE Vernova gas turbines and two GE Vernova generators, will be delivered to the power station in phases throughout June, July, and August 2025.[14]
Articles and Resources
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 "U.S. Energy Information Administration, Preliminary Monthly Electric Generator Inventory (November 2019)". Archived from the original on 2020-06-12. Retrieved September 10, 2021.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 (PDF) https://www.oge.com/wps/wcm/connect/4a1affa2-a1d9-4ef4-99c0-2a39802daa9f/OGE%2B2025%2BIRP%2BUpdate%2BDRAFT.pdf?CVID=prKiz-k&MOD=AJPERES.
{{cite web}}: Missing or empty|title=(help) - ↑ 3.0 3.1 3.2 https://www.oge.com/documents/d/portal/draft-og-e-2026-integrated-resource-plan.
{{cite web}}: Missing or empty|title=(help) - ↑ 4.0 4.1 https://www.oge.com/wps/portal/ord/who-we-are/newsroom/press-releases/pressrelease-details/142-press-release/!ut/p/z1/lZLLboMwEEW_JQuW4MGmPLpzCYKQpAG1JNSbilTmIQFGhhapX1-qqAukvOqdrXPvzJ0xYihFrM2-qiIbKtFm9XR_Y-Y7hsAPHBvrjkuWYMZutKLOMwFsoMMJCJZmEPqw2-2pBzExbCvavALYFmL_0vvx-mHSg0f3hkEAyH16uHAo3Fn_MsCu24e3CkwTxHLrbgvEumwo1arNBUp1A6ud5H2vSl7zrOdTI2xuFZFfKwpry6OhDoTcAJ7wH3BlGXPgzLTvyFvU4nj6GrQ9EnsKJnnOJZfap5yey2Ho-kcFFBjHUSuEKGqufYhGgXOSUvQDSuck6pokSdLvTf6yqqLmYPd0sfgB7LeheA!!/dz/d5/L2dBISEvZ0FBIS9nQSEh/?cache=site&contentcache=none.
{{cite web}}: Missing or empty|title=(help) - ↑ 5.0 5.1 5.2 5.3 https://finnhub.io/api/news?id=7c79bfd3e4b71514d8a9b9b904920f07c0a4ce8ed5083e5a3286e1cbe8288d83.
{{cite web}}: Missing or empty|title=(help) - ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 https://web.archive.org/web/20230509053328/https://www.eia.gov/electricity/data/eia860m/. Archived from the original on 2023-05-09. Retrieved 2026-04-16.
{{cite web}}: Missing or empty|title=(help) - ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 "Annual Electric Power Industry Report, Form EIA-860 detailed data with previous form data (EIA-860A/860B) - U.S. Energy Information Administration (EIA)". www.eia.gov. 2025-09-09. Archived from the original on 2022-10-28. Retrieved 2025-11-26.
- ↑ 8.0 8.1 8.2 8.3 8.4 8.5 https://www.oge.com/documents/d/portal/2025-integrated-resource-plan?_gl=1*vpujla*_ga*MTM0MzIzOTEwMi4xNzcwNjY3NjM1*_ga_HNEDJFDKRD*czE3NzA2Njc2MzUkbzEkZzEkdDE3NzA2Njc2NjEkajM0JGwwJGgw.
{{cite web}}: Missing or empty|title=(help) - ↑ 9.0 9.1 9.2 9.3 9.4 9.5 https://ogeenergy.gcs-web.com/static-files/419376d6-a5b1-46d7-8a73-ea2d4f027e34.
{{cite web}}: Missing or empty|title=(help) - ↑ 10.0 10.1 10.2 10.3 "U.S. Energy Information Administration, Preliminary Monthly Electric Generator Inventory (May 2023)". Archived from the original on 2023-09-18. Retrieved June 21, 2023.
- ↑ "U.S. Energy Information Administration, Preliminary Monthly Electric Generator Inventory (July 2021)". Archived from the original on 2021-11-22. Retrieved October 13, 2021.
- ↑ 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 "U.S. Energy Information Administration, Form EIA-860 detailed data with previous form data (EIA-860A/860B), 2018". Archived from the original on 2019-11-16. Retrieved September 10, 2021.
- ↑ "Evaluation of Permit Application No. 2024-0368-TVR4" (PDF). OKLAHOMA DEPARTMENT OF ENVIRONMENTAL QUALITY AIR QUALITY DIVISION. September 16, 2024. Retrieved July 9, 2025.
{{cite web}}: CS1 maint: url-status (link) - ↑ "OGE Energy : Massive new generation units arrive at OG&E's Horseshoe Lake Power Plant". Finnhub. June 20, 2025. Retrieved July 9, 2025.
{{cite web}}: CS1 maint: url-status (link)
Additional data
To access additional data, including an interactive map of gas-fired power stations, a downloadable dataset, and summary data, please visit the Global Oil and Gas Plant Tracker on the Global Energy Monitor website.
