SolaireHolman Solar Project — Plant Summary
- EIA Plant ID
- 60989
- Capacity
- 50 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Brewster, TX
- Operating Since
- 2017
- Generators
- 1
- Operator
- SolaireHolman 1, LLC
- Parent Company
- ENGIE
- Annual Generation
- 105,987 MWh
- Capacity Factor
- 24.2%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
SolaireHolman Solar Project
OperatingSolar
Ranked #271 of 351 Solar plants in TX#1335 of 7447 nationally
50 MW Solar operating in Brewster, TX — Electric Reliability Council of Texas, Inc.
EIAGEMWD
50 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2017
Operating Since
Location
Coordinates
30.4573, -103.4823
County
Brewster, TX
Nearby Plants
- House MountainBESS73.2 MW · 5.2 km
- NGP Blue Mountain I LLCGeothermal63.9 MW · 5.3 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 | SolaireHolman 1, LLC | ENGIE | — |
| Owner(s) | SolaireHolman 1, LLC | ENGIE | — |
| Status | Operating | operating | — |
Ownership Chain
About
The SolaireHolman Solar Project is a 50 MW solar photovoltaic power plant located in Brewster County, Texas. The plant began operating in 2017 and has one generator. It is owned by ENGIE, a French multinational utility, and operated by SolaireHolman 1, LLC. The facility utilizes single-axis solar tracking technology. SolaireHolman is connected to the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority.
In its most recent year of operation, SolaireHolman generated 105,987 MWh of electricity, achieving a capacity factor of 24.2%. The plant has a power purchase agreement (PPA) price of $43.92 per MWh. SolaireHolman ranks as the 216th largest power plant in Texas out of 298, and 1147th nationally out of 7108.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
6.3K MWh
Latest Month
106.0K MWh
Annual Generation
24.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$42.7/MWh
LCOE (Levelized Cost)
$43.9/MWh
PPA Price
$22.1/MWh
Energy Value
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Lasso Substation · 69 kV
Substation Distance
0 km
Operator
Solairedirect
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
LASSO_GEN
Pricing Hub
HB_WEST
Secondary Zone
LZ_WEST
Location Type
Resource Node
Node Source
Curated node match
News & Articles (3)Beta
Hazards·wildfire
Fire Weather Watch: Sacramento Foothills and Guadalupe Mountains; Chaves County Plains; Eddy Plains; Lea; Gaines; Dawson
Fire Weather Watch issued March 21 at 2:43AM CDT until March 23 at 12:00AM CDT by NWS Midland/Odessa TX
NWS Midland/Odessa TX·5 days ago
Industry·corporate
ENGIE’s 50-megawatt Houston solar plant enters service
ENGIE and the city of Houston, Texas recently announced that ENGIE's 50-megawatt (MW) SolaireHolman solar power plant, which is capable of providing up to...
ENGIE (developer)Houston (buyer)
Daily Energy Insider·8 years ago
Industry·corporate
Houston to receive 10.5% of its electricity from 50-MW solar plant
The City of Houston and ENGIE are pleased to announce that ENGIE's 50-MW SolaireHolman plant is now online, operational, and capable of...
Houston (buyer)ENGIE (developer)
Solar Power World·8 years ago
Last updated 2026-03-21
View all articles