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75 MW BESS testing in Santa Clara, CA — California Independent System Operator
75 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Coordinates
37.2392, -121.7793
County
Santa Clara, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hummingbird Energy Storage, LLC | — | — |
| Owner(s) | Hummingbird Energy Storage, LLC | — | — |
| Status | Testing | — | — |
Hummingbird Energy Storage LLC, located in Santa Clara County, California, is a 75 MW battery energy storage system. The plant, identified by the EIA plant code 65395, is owned and operated by Hummingbird Energy Storage, LLC. It consists of a single generator utilizing batteries as its energy source, classified by the primary fuel code "MWH."
The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. According to available rankings, the plant is the 136th largest in California out of 300 plants, and the 554th largest nationally out of 1205 plants. Recent news coverage indicates interest in the plant, with six articles published, focusing on grid-related topics, deals, and industry news.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
No generation data available for this plant.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $102.1M
Point of Interconnection
Nearest Substation
Humminbird Substation · 115 kV
Substation Distance
0.093 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
MECCTG1_7_N100
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
View all 6 articlesNo ask pi reports yet for this entity.
ask pi about Hummingbird Energy Storage LLCCalifornia Independent System Operator (CISO)
Grid Voltage
—
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP