Combie South
Hydro power plant in Nevada County, California. 1.5 MW of nameplate capacity across 3 generators, operated by Nevada Irrigation District.
Also known as Combie South Power Station · EIA plant 846
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.5 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- April 1984First generator online
- Operator
- Nevada Irrigation DistrictEIA operator ID 13402
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Nevada County, CA39.0096, −121.0591
- EIA plant ID
- 846EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Combie South produces
Free · EIA-923Net generation, 2025
4.39 GWh
4,389 MWh, final
Capacity factor, 2025
33.4%
2024: 28.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.7–8.5
GWh a year. Low 2015, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 of 12 |
| 2001 | 1,263 | Not reported | 12 of 12 |
| 2002 | 6,123 | Not reported | 12 of 12 |
| 2003 | 7,294 | Not reported | 12 of 12 |
| 2004 | 6,043 | Not reported | 12 of 12 |
| 2005 | 7,207 | Not reported | 12 of 12 |
| 2006 | 7,422 | Not reported | 12 of 12 |
| 2007 | 2,680 | Not reported | 12 of 12 |
| 2008 | 3,256 | Not reported | 12 of 12 |
| 2009 | 4,845 | Not reported | 12 of 12 |
| 2010 | 7,091 | 54.0% | 12 of 12 |
| 2011 | 7,414 | 56.4% | 12 of 12 |
| 2012 | 3,287 | 24.9% | 12 of 12 |
| 2013 | 2,317 | 17.6% | 12 of 12 |
| 2014 | 2,158 | 16.4% | 12 of 12 |
| 2015 | 1,653 | 12.6% | 12 of 12 |
| 2016 | 7,927 | 60.2% | 12 of 12 |
| 2017 | 8,456 | 64.4% | 12 of 12 |
| 2018 | 5,441 | 41.4% | 12 of 12 |
| 2019 | 7,918 | 60.3% | 12 of 12 |
| 2020 | 3,437 | 26.1% | 12 of 12 |
| 2021 | 2,373 | 18.1% | 12 of 12 |
| 2022 | 3,679 | 28.0% | 12 of 12 |
| 2023 | 6,785 | 51.6% | 12 of 12 |
| 2024 | 3,694 | 28.0% | 12 of 12 |
| 2025 | 4,389 | 33.4% | 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 account · CAISOEmissions
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 |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 0.5 | April 1984 |
| 2 | Conventional Hydroelectric | 0.5 | April 1984 |
| 3 | Conventional Hydroelectric | 0.5 | April 1984 |
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 Nevada Irrigation District as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Combie South
More plants operated by Nevada Irrigation District
Questions about Combie South
How much power does Combie South produce?
Combie South reported 4,389 MWh (4.39 GWh) of net generation in 2025, a 33.4% capacity factor on 1.5 MW of nameplate capacity.
Where is Combie South?
Combie South is in Nevada County, California, at 39.0096, −121.0591. It is in the California Independent System Operator balancing area (CISO).
Who operates Combie South?
EIA-860M for August 2026 lists Nevada Irrigation District as the operator (EIA operator ID 13402). The operator is not always the owner.
When did Combie South start operating?
Its first generator began operating in April 1984, according to EIA-860M.
Does InfraMap have power prices for Combie South?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Combie South, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page