Silver Sage Windpower
Wind power plant in Laramie County, Wyoming. 42 MW of nameplate capacity across 1 generator, operated by Deriva Energy.
Also known as Silver Sage · EIA plant 57091
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 42 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- October 2009First generator online
- Operator
- Deriva EnergyEIA operator ID 65411
- Grid
- WAUWBalancing authority WAUW
- Price nodes
- None linkedNo verified ISO node
- Location
- Laramie County, WY41.1297, −105.0240
- EIA plant ID
- 57091EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Silver Sage Windpower produces
Free · EIA-923Net generation, 2025
100 GWh
100,242 MWh, final
Capacity factor, 2025
27.2%
2024: 29.5%
January to July 2026
66.6 GWh
Provisional
Range, 2015 to 2025
100.2–129.8
GWh a year. Low 2025, high 2016
| 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 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | 33,276 | Not reported | 3 of 12 |
| 2010 | 126,804 | 34.5% | 12 of 12 |
| 2011 | 139,648 | 38.0% | 12 of 12 |
| 2012 | 128,867 | 34.9% | 12 of 12 |
| 2013 | 131,541 | 35.8% | 12 of 12 |
| 2014 | 132,239 | 35.9% | 12 of 12 |
| 2015 | 111,639 | 30.3% | 12 of 12 |
| 2016 | 129,793 | 35.2% | 12 of 12 |
| 2017 | 123,764 | 33.6% | 12 of 12 |
| 2018 | 123,734 | 33.6% | 12 of 12 |
| 2019 | 119,976 | 32.6% | 12 of 12 |
| 2020 | 125,813 | 34.1% | 12 of 12 |
| 2021 | 102,892 | 28.0% | 12 of 12 |
| 2022 | 123,554 | 33.6% | 12 of 12 |
| 2023 | 109,516 | 29.8% | 12 of 12 |
| 2024 | 108,803 | 29.5% | 12 of 12 |
| 2025 | 100,242 | 27.2% | 12 of 12 |
| 2026 (provisional, partial year) | 66,630 | 31.2% | 7 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 |
|---|---|---|---|
| SSW01 | Onshore Wind Turbine | 42.0 | October 2009 |
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 Deriva Energy 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 Silver Sage Windpower
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Questions about Silver Sage Windpower
How much power does Silver Sage Windpower produce?
Silver Sage Windpower reported 100,242 MWh (100 GWh) of net generation in 2025, a 27.2% capacity factor on 42 MW of nameplate capacity. From January to July 2026 it reported 66.6 GWh, which is provisional.
Where is Silver Sage Windpower?
Silver Sage Windpower is in Laramie County, Wyoming, at 41.1297, −105.0240. It is in the Western Area Power Administration UGP West balancing area (WAUW).
Who operates Silver Sage Windpower?
EIA-860M for August 2026 lists Deriva Energy as the operator (EIA operator ID 65411). The operator is not always the owner.
When did Silver Sage Windpower start operating?
Its first generator began operating in October 2009, 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