Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
55 MW Geothermal out of service in Lake, CA
55 MW
Nameplate Capacity
1
Generators
unit
Geothermal
Technology
1985
Operating Since
Coordinates
38.8348, -122.7677
County
Lake, CA
Nearby Plants
Forward-looking, asset-specific exposure analytics combining climate hazards, generation variability, and counterparty risk into a single decision-grade view. Powered by InfraRisk.
See the full risk decomposition + scenarios for this asset.
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Mayacma Geothermal | Bottle Rock Power | — |
| Owner(s) | Mayacma Geothermal | Baseload Clean Energy Partners | — |
| Status | Out of service | operating | — |
GEM identifies the owner as Baseload Clean Energy Partners
This entity is not yet in the GEM ownership database — chain unavailable.
The Bottle Rock Power Plant (BRPP) is a geothermal power plant in the Glenbrook Area of Lake County, California, United States.
Read more on WikipediaBottle Rock Power is a 55 MW geothermal power plant located in Lake County, California. The plant began operating in 1985 and has one generator. It is owned and operated by Mayacma Geothermal. Bottle Rock Power is interconnected to the California Independent System Operator (CAISO) balancing authority and is within the Western Electricity Coordinating Council (WECC) NERC region.
Bottle Rock Power is the 14th largest geothermal plant in California out of 33 such plants, and the 22nd largest in the United States out of 70. Recent news coverage includes 7 articles related to industry, 2 related to deals, and 1 related to regulatory matters. A Wikipedia extract is available for the plant.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
California Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this asset.
2013
$2,851/kW
Est. Construction Cost
Total estimated cost: $156.8M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this asset.
Market Position
ISO/RTO Market
CAISO
LMP Node
BOTTLERK_7_N001
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
View all articlesNo Ask reports yet for this entity.
Ask about Bottle Rock PowerForward forecasts, scenario decomposition, and risk-decision tooling for this asset.
Kaishan Group, via subsidiary Mayacma Geothermal LLC, signs purchase-and-lease agreement to acquire idle 55-MW Bottle Rock geothermal plant from Bottle Rock Power LLC for redevelopment.
source