Search
Search plants, projects, owners, and states
Search plants, projects, owners, and states
44.4 MW Geothermal operating in Mono, CA — California Independent System Operator
44.4 MW
Nameplate Capacity
1
Generators
unit
Geothermal
Technology
2022
Operating Since
Coordinates
37.6461, -118.9158
County
Mono, CA
Nearby Plants
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 | CD4 | Ormat Technology | — |
| Owner(s) | CD4 | Ormat Technology Inc | — |
| Status | Operating | operating | — |
GEM identifies the owner as Ormat Technology Inc
This entity is not yet in the GEM ownership database — chain unavailable.
CD4 is a 44.4 MW geothermal power plant located in Mono County, California. The plant began operating in 2022 and has one generator. It is owned and operated by CD4. The plant's balancing authority is the California Independent System Operator (CAISO), and it falls within the Western Electricity Coordinating Council (WECC) NERC region.
In its latest year of operation, CD4 generated 276,936 MWh of electricity, achieving a capacity factor of 71.0%. The plant is ranked 21st out of 33 power plants in California and 30th out of 70 geothermal plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
25.7K MWh
Latest Month
276.9K MWh
Annual Generation
71.0%
Capacity Factor
CO₂ Intensity
0 lb/MWh
NOx
0.000 lb/MWh
SO₂
Point of Interconnection
Nearest Substation
Mommoth Pacific 1
Substation Distance
0.011 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
CONTROLX_1_N008
Pricing Hub
TH_SP15_GEN-APND
Alt. Hub / Zone
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
View all 10 articlesNo ask pi reports yet for this entity.
ask pi about CD4California Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.000 lb/MWh
CH₄
—
N₂O
—
Capacity Factor
70.0%
Annual Net Gen
272 GWh
CO₂eq
0.000 lb/MWh
Subregion
WECC California