Twin Buttes Wind Project
Wind power plant in Bent County, Colorado. 75 MW of nameplate capacity across 1 generator, operated by Avangrid Power LLC.
Also known as Twin Buttes · EIA plant 56460
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 75 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 2007First generator online
- Operator
- Avangrid Power LLCEIA operator ID 15399
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Bent County, CO37.6735, −102.8622
- EIA plant ID
- 56460EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Twin Buttes Wind Project produces
Free · EIA-923Net generation, 2025
228 GWh
228,171 MWh, final
Capacity factor, 2025
34.7%
2024: 35.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
171.2–265.4
GWh a year. Low 2021, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | 128,688 | Not reported | 12 of 12 |
| 2008 | 265,378 | Not reported | 12 of 12 |
| 2009 | 256,708 | Not reported | 12 of 12 |
| 2010 | 269,363 | 41.0% | 12 of 12 |
| 2011 | 245,601 | 37.4% | 12 of 12 |
| 2012 | 263,997 | 40.1% | 12 of 12 |
| 2013 | 251,047 | 38.2% | 12 of 12 |
| 2014 | 240,923 | 36.7% | 12 of 12 |
| 2015 | 237,722 | 36.2% | 12 of 12 |
| 2016 | 262,259 | 39.8% | 12 of 12 |
| 2017 | 230,039 | 35.0% | 12 of 12 |
| 2018 | 257,254 | 39.2% | 12 of 12 |
| 2019 | 239,687 | 36.5% | 12 of 12 |
| 2020 | 265,372 | 40.3% | 12 of 12 |
| 2021 | 171,165 | 26.1% | 12 of 12 |
| 2022 | 206,780 | 31.5% | 12 of 12 |
| 2023 | 218,989 | 33.3% | 12 of 12 |
| 2024 | 232,984 | 35.4% | 12 of 12 |
| 2025 | 228,171 | 34.7% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| WT1 | Onshore Wind Turbine | 75.0 | July 2007 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Avangrid Power LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Twin Buttes Wind Project
More plants operated by Avangrid Power LLC
Questions about Twin Buttes Wind Project
How much power does Twin Buttes Wind Project produce?
Twin Buttes Wind Project reported 228,171 MWh (228 GWh) of net generation in 2025, a 34.7% capacity factor on 75 MW of nameplate capacity.
Where is Twin Buttes Wind Project?
Twin Buttes Wind Project is in Bent County, Colorado, at 37.6735, −102.8622. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Twin Buttes Wind Project?
EIA-860M for August 2026 lists Avangrid Power LLC as the operator (EIA operator ID 15399). The operator is not always the owner.
When did Twin Buttes Wind Project start operating?
Its first generator began operating in July 2007, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Project names from the USGS U.S. Wind Turbine Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page