Samson Solar Energy III LLC
Solar power plant in Lamar County, Texas. 250 MW of nameplate capacity across 1 generator, operated by Invenergy Services LLC.
Also known as Samson Solar Energy III · EIA plant 63883
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 250 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- November 2022First generator online
- Operator
- Invenergy Services LLCEIA operator ID 49893
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 1 ERCOT nodeResource nodes with prices
- Location
- Lamar County, TX33.4265, −95.3575
- EIA plant ID
- 63883EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Samson Solar Energy III produces
Free · EIA-923Net generation, 2025
278 GWh
277,992 MWh, final
Capacity factor, 2025
12.7%
2024: 9.7%
January to July 2026
179 GWh
Provisional
Range, 2023 to 2025
212.0–380.2
GWh a year. Low 2024, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | 29,411 | Not reported | 2 of 12 |
| 2023 | 380,185 | 17.4% | 12 of 12 |
| 2024 | 211,966 | 9.7% | 12 of 12 |
| 2025 | 277,992 | 12.7% | 12 of 12 |
| 2026 (provisional, partial year) | 179,100 | 14.1% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ERCOTEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GEN1 | Solar Photovoltaic | 250.0 | November 2022 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Invenergy Services LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Samson Solar Energy III
More plants operated by Invenergy Services LLC
Questions about Samson Solar Energy III
How much power does Samson Solar Energy III LLC produce?
Samson Solar Energy III LLC reported 277,992 MWh (278 GWh) of net generation in 2025, a 12.7% capacity factor on 250 MW of nameplate capacity. From January to July 2026 it reported 179 GWh, which is provisional.
Where is Samson Solar Energy III LLC?
Samson Solar Energy III LLC is in Lamar County, Texas, at 33.4265, −95.3575. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Samson Solar Energy III LLC?
EIA-860M for August 2026 lists Invenergy Services LLC as the operator (EIA operator ID 49893). The operator is not always the owner.
When did Samson Solar Energy III LLC start operating?
Its first generator began operating in November 2022, according to EIA-860M.
Does InfraMap have power prices for Samson Solar Energy III LLC?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to Samson Solar Energy III LLC, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page