Santa Teresa Solar — Plant Summary
- EIA Plant ID
- 68866
- Capacity
- 300 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries, Solar Photovoltaic
- Status
- Under construction
- Location
- Dona Ana, NM
- Operating Since
- —
- Generators
- 2
- Operator
- Santa Teresa Solar
- Parent Company
- —
- Balancing Authority
- El Paso Electric Company
- ISO/RTO
- —
- NERC Region
- WECC
Santa Teresa Solar
Under constructionBESSSolarHybridGEM: construction
Ranked #3 of 10 BESS plants in NM#86 of 837 nationally
300 MW Batteries (150 MW) + Solar Photovoltaic (150 MW) under construction in Dona Ana, NM — El Paso Electric Company
EIAGEM
300 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
—
Operating Since
Location
Coordinates
31.8055, -106.6989
County
Dona Ana, NM
Nearby Plants
- Roadrunner SolarSolar20.2 MW · 2.7 km
- Milagro Solar IBESS225 MW · 5.5 km
- Nodal PowerLandfill Gas3.2 MW · 10.0 km
Ownership & Operator
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 | Santa Teresa Solar | Hecate Energy [100%] | — |
| Owner(s) | Santa Teresa Solar | Hecate Energy [100%] | — |
| Status | Under construction | construction | — |
Ownership Chain
GEM identifies the owner as Hecate Energy [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Santa Teresa Solar is a 300 MW hybrid power plant located in Dona Ana County, New Mexico. The facility, identified by plant ID 68866, is operated by Santa Teresa Solar. It utilizes both solar photovoltaic technology and battery storage. The primary fuel source is listed as MWH, indicating electricity generation. The solar array employs a fixed-tilt tracking system.
The plant is the third-largest solar facility in New Mexico out of 15, and ranks 160th nationally among 514 solar plants. Santa Teresa Solar operates within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is El Paso Electric Company. As of the latest data, the plant has been the subject of 10 news articles, with coverage focused primarily on industry developments, as well as deals and regulatory matters.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
El Paso Electric Company
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Regulatory·rate case
El Paso Electric Finds Solar Procurement Solution After Tariff Hikes
El Paso Electric is again seeking regulatory approval for its New Mexico renewable energy plan after resolving tariff-related uncertainty.
El Paso Electric (other)
RTO Insider·3 months ago
Industry·technology
Santa Teresa, New Mexico becoming solar-power hub for El Paso Electric
EDF power solutions unveils 150MW Milagro Solar and Storage project in Santa Teresa, New Mexico, adding to El Paso Electric's growing solar...
EDF power solutions (developer)El Paso Electric (other)
El Paso Times·5 months ago
Industry·technology
Work underway for delayed, 150MW Santa Teresa solar plant to supply El Paso Electric
Work begins on delayed, 150MW Santa Teresa Solar and Storage project being built by New York's DESRI for El Paso Electric, as its solar...
DESRI (developer)El Paso Electric (buyer)
El Paso Times·8 months ago
Industry·technology
New 150-Megawatt Solar Power Plant Greenlighted For New Mexico (And Texas)
The leading renewable energy developer DESRI is behind a new 150-megawatt solar power plant in New Mexico.
DESRI (developer)
CleanTechnica·8 months ago
Last updated 2026-03-14
View all 10 articles