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304.5 MW Batteries (100 MW) + Solar Photovoltaic (205 MW) operating in Delta, TX — Electric Reliability Council of Texas, Inc.
304.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2025
Operating Since
Coordinates
33.4571, -95.6679
County
Delta, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Enel Green Power Estonian Solar Project, LLC | Enel Green Power SA | — |
| Owner(s) | Enel Green Power Estonian Solar Project, LLC | Enel | — |
| Status | Operating | operating | — |
The Estonian Solar Project, LLC is a hybrid solar and battery energy storage system (BESS) located in Delta County, Texas. The plant has a total capacity of 304.5 MW and began operating in 2025. It is owned and operated by Enel Green Power Estonian Solar Project, LLC, a subsidiary of the Italian energy company Enel. The facility utilizes both solar photovoltaic technology and batteries, with a BESS duration of 1.58 hours. The solar panels are mounted on a fixed-tilt racking system.
The plant's primary fuel source is reported as MWH (megawatt-hours), indicating the solar energy input. In its latest year of operation, the Estonian Solar Project generated 429,562 MWh, achieving a capacity factor of 16.1%. The plant operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority and the Texas Reliability Entity (TRE) NERC region. Ranked as the 48th largest plant in Texas out of 224 and 136th nationally out of 514, the Estonian Solar Project consists of 2 generators.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
21.0K MWh
Latest Month
429.6K MWh
Annual Generation
16.1%
Capacity Factor
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $414.4M
Market Position
ISO/RTO Market
ERCOT
LMP Node
ESTONIAN_ALL
Pricing Hub
HB_NORTH
Alt. Hub / Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-04-19
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