Diablo Energy Storage — Plant Summary
- EIA Plant ID
- 62175
- Capacity
- 200 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Contra Costa, CA
- Operating Since
- 2022
- Generators
- 1
- Operator
- Diablo Energy Storage, LLC
- Parent Company
- —
- Annual Generation
- -35,892 MWh
- Capacity Factor
- -2.0%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Diablo Energy Storage
OperatingBESS
Ranked #24 of 191 BESS plants in CA#192 of 837 nationally
200 MW BESS operating in Contra Costa, CA — California Independent System Operator
EIAWD
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2022
Operating Since
Location
Coordinates
38.0288, -121.9009
County
Contra Costa, CA
Nearby Plants
- Columbia Solar Energy, LLCSolar19.2 MW · 3.3 km
- Essex Solar CenterSolar20 MW · 3.4 km
- Ameresco Keller CanyonLandfill Gas3.8 MW · 4.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Diablo Energy Storage, LLC | — | — |
| Owner(s) | Diablo Energy Storage, LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Diablo Energy Storage is a 200 MW battery energy storage system (BESS) located in Contra Costa County, California. The facility, which began operating in 2022, is owned and operated by Diablo Energy Storage, LLC. The plant utilizes batteries as its primary fuel source, with a total storage capacity of 800 MWh, providing a duration of 4 hours. The battery chemistry is lithium-ion (LIB). Diablo Energy Storage ranks 64th out of 112 power plants in California and 303rd out of 514 plants nationally.
The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates a power purchase agreement (PPA) price of $6.95 per MWh, as reported to FERC. The plant has been the subject of 6 news articles, with 5 focusing on grid-related topics and 1 on industry news.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
220 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Interconnection Queue1 projectBeta
BLACK DIAMOND ENERGY STORAGE 2
WithdrawnBattery200 MWCAISO
Generation
−2.3K MWh
Net Charging
-35.9K MWh
Annual Net Energy
-2.0%
Capacity Factor
Jan 2023 – Dec 2025
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial DataBeta
Source: FERC Electric Quarterly ReportsHIGH
$7.0/MWh
PPA Price
Diablo Energy Storage, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
LMECCT2_7_B1
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (9)Beta
General
Fluence Energy and Diablo Energy Storage in contract dispute
The Virginia-based clean energy company Fluence Energy and Californian energy storage company Diablo Energy Storage are in a process of...
www.bestmag.co.uk·2 years ago
Industry·corporate
Fluence Energy and Diablo Energy Storage in contract dispute
The Virginia-based clean energy company Fluence Energy and Californian energy storage company Diablo Energy Storage are in a process of...
Fluence Energy (other)Diablo Energy Storage (other)
www.bestmag.co.uk·2 years ago
Grid·capacity addition
Amid California’s heatwaves and fires, ‘world’s largest’ battery project is being switched on
LS Power's Gateway project in San Diego: the first phase was initially just over 60MW, and now the system stands at 230MW, set for a further 20MW expansion.
LS Power (developer)
Energy-Storage.News·4 years ago
General
California utility PG&E seeks approval for 423MW of four-hour duration battery storage
Utility PG&E has asked the California Public Utilities Commission (CPUC) for approval of five large-scale battery projects, each with four-hours duration.
Energy-Storage.News·4 years ago
Last updated 2026-03-26
View all 9 articles