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7.8 MW Batteries (4 MW) + Solar Photovoltaic (3 MW) operating in Riverside, CA — California Independent System Operator
7.8 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2017
Operating Since
Coordinates
33.5553, -116.6396
County
Riverside, CA
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arizona Electric Pwr Coop Inc | Arizona Electric Power Cooperative | — |
| Owner(s) | Sierra Southwest Cooperative | Sierra Southwest Cooperative | — |
| Status | Operating | operating | — |
GEM identifies the owner as Sierra Southwest Cooperative
This entity is not yet in the GEM ownership database — chain unavailable.
SunAnza is a hybrid power plant located in Riverside County, California. The facility, owned and operated by Arizona Electric Power Cooperative Inc., began commercial operation in 2017. It has a total capacity of 7.8 MW consisting of solar photovoltaic generation paired with battery energy storage. The plant utilizes four generators and its solar array employs a fixed tilt tracking system. The battery energy storage system (BESS) has a capacity of 4 MWh and a duration of 2 hours, utilizing lithium-ion battery chemistry.
The plant's primary fuel type is listed as "MWH," indicating the solar energy input. In its latest year of reported generation, SunAnza produced 7,853 MWh of electricity, resulting in a capacity factor of 11.5%. SunAnza operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. The plant is ranked 212 out of 300 power plants in California and 891 out of 1205 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
545 MWh
Net Discharge
7.9K MWh
Annual Net Energy
11.5%
Capacity Factor
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.
Data from 2021–2024
$11.9/MWh
Energy Value
$8.4/MWh
Capacity Value
Point of Interconnection
Nearest Substation
Tony Lappos Substation
Substation Distance
< 10 km
Operator
Anza Electric Cooperative
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
No news articles linked yet for this plant.
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No ask pi reports yet for this entity.
ask pi about SunAnzaCalifornia Independent System Operator (CISO)
Grid Voltage
34.5 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility