Slate Hybrid
Solar and battery storage project in Kings County, California. 440.3 MW of nameplate capacity across 9 generators, operated by MN8 Energy LLC.
Also known as EIA plant 63727
This project groups Slate Hybrid (EIA 63727). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 440.3 MWSolar 300.0 · Battery storage 140.3
- Generators
- 9 operatingEIA-860M, August 2026
- Operating since
- November 2021First generator online
- Operator
- MN8 Energy LLCEIA operator ID 61944
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 5 CAISO nodesResource nodes with prices
- Location
- Kings County, CA36.2270, −119.8948
- EIA plant ID
- 63727EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Slate Hybrid produces
Free · EIA-923Net generation, 2025
727 GWh
727,184 MWh, final
Capacity factor, 2025
28.7%
2024: 25.8%
January to July 2026
435 GWh
Provisional
Range, 2023 to 2025
654.7–727.2
GWh a year. Low 2024, high 2025
| 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 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | 9,697 | 9.9% | 2 of 12 |
| 2022 | 683,649 | Not reported | 11 of 12 |
| 2023 | 701,610 | 27.7% | 12 of 12 |
| 2024 | 654,735 | 25.8% | 12 of 12 |
| 2025 | 727,184 | 28.7% | 12 of 12 |
| 2026 (provisional, partial year) | 434,956 | 29.6% | 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 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 |
|---|---|---|---|
| SL3EC | Solar Photovoltaic | 67.5 | March 2022 |
| SLATE | Solar Photovoltaic | 50.5 | November 2021 |
| SLB3C | Batteries | 33.8 | March 2022 |
| SLBES | Batteries | 50.0 | April 2022 |
| SLBPW | Batteries | 10.0 | March 2022 |
| SLBSV | Batteries | 46.5 | February 2022 |
| SLPWR | Solar Photovoltaic | 26.0 | March 2022 |
| SLSTN | Solar Photovoltaic | 63.0 | April 2022 |
| SLSVC | Solar Photovoltaic | 93.0 | February 2022 |
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 MN8 Energy 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 Slate Hybrid
More plants operated by MN8 Energy LLC
Questions about Slate Hybrid
How much power does Slate Hybrid produce?
Slate Hybrid reported 727,184 MWh (727 GWh) of net generation in 2025, a 28.7% capacity factor on 440.3 MW of nameplate capacity. From January to July 2026 it reported 435 GWh, which is provisional.
Where is Slate Hybrid?
Slate Hybrid is in Kings County, California, at 36.2270, −119.8948. It is in the California Independent System Operator balancing area (CISO).
Who operates Slate Hybrid?
EIA-860M for August 2026 lists MN8 Energy LLC as the operator (EIA operator ID 61944). The operator is not always the owner.
Is Slate Hybrid a solar or a battery storage plant?
Both. Solar capacity totals 300 MW and battery storage capacity totals 140.3 MW.
When did Slate Hybrid start operating?
Its first generator began operating in November 2021, according to EIA-860M.
Does InfraMap have power prices for Slate Hybrid?
Yes. InfraMap has CAISO day-ahead and real-time prices at 5 price nodes linked to Slate Hybrid, 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
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page