Samson Solar Energy III LLC — Plant Summary
- EIA Plant ID
- 63883
- Capacity
- 250 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Lamar, TX
- Operating Since
- 2022
- Generators
- 1
- Operator
- Invenergy Services LLC
- Parent Company
- WEC Energy Group
- Annual Generation
- 277,992 MWh
- Capacity Factor
- 12.7%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Samson Solar Energy III LLC
OperatingSolar
Ranked #84 of 351 Solar plants in TX#207 of 7447 nationally
250 MW Solar operating in Lamar, TX — Electric Reliability Council of Texas, Inc.
EIAGEMWD
250 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2022
Operating Since
Location
Coordinates
33.4775, -95.3259
County
Lamar, TX
Nearby Plants
- Samson Solar Energy II LLCSolar200 MW · 3.0 km
- Samson Solar EnergySolar250 MW · 3.1 km
- Impact Solar 1Solar198.5 MW · 4.2 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 | Invenergy Services LLC | Invenergy | — |
| Owner(s) | Invenergy Services LLC | WEC Energy Group | — |
| Status | Operating | operating | — |
Ownership Chain
About
Samson Solar Energy III LLC is a 250 MW solar photovoltaic power plant located in Lamar County, Texas. The plant began operating in 2022 and is owned by WEC Energy Group. Invenergy Services LLC is the operator. The plant utilizes fixed-tilt solar tracking technology. It is interconnected to the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority.
In its most recent year of operation, Samson Solar Energy III generated 277,992 MWh of electricity, achieving a capacity factor of 12.7%. The plant ranks 64th out of 192 solar facilities in Texas and 131st out of 639 nationally. Financial data is available for the plant from LBNL, though specific details are not provided.
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
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
12.9K MWh
Latest Month
278.0K MWh
Annual Generation
12.7%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$49.0/MWh
LCOE (Levelized Cost)
$16.0/MWh
Energy Value
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
ERCOT
LMP Node
IMP_RN1
Pricing Hub
HB_NORTH
Secondary Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
News & Articles (3)Beta
Deals·project finance
We Energies parent WEC Energy invests $459M in massive Texas solar energy project
WEC Energy Group said it agreed to invest $459 million for a 90% ownership interest in the Delilah I Solar Energy Center in Texas that will generate renewable...
WEC Energy Group (other)
The Business Journals·1 years ago
Industry·corporate
Utility-scale updates on Texas 36 GW five-year solar path
A triumphant 36 GW buildout is expected by the Solar Energy Industries Association (SEIA) over the next five years, building on the 16 GW that is active to...
Solar Energy Industries Association (other)
pv magazine USA·3 years ago
Deals·ppa
PSC approves Madison Gas purchase of 32.5 MW of power from 325 MW solar-plus-storage project
A local utility said the large renewable energy project is needed to help meet capacity requirements as utilities retire a 1.39 GW coal...
Madison Gas (buyer)
pv magazine USA·3 years ago
Last updated 2026-03-14
View all articles