Prospero Solar II — Plant Summary
- EIA Plant ID
- 64325
- Capacity
- 250 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Andrews, TX
- Operating Since
- 2021
- Generators
- 1
- Operator
- Prospero Solar II, LLC (Longroad)
- Parent Company
- —
- Annual Generation
- 667,046 MWh
- Capacity Factor
- 30.5%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Prospero Solar II
OperatingSolar
Ranked #85 of 351 Solar plants in TX#217 of 7447 nationally
250 MW Solar operating in Andrews, TX — Electric Reliability Council of Texas, Inc.
EIAGEMWD
250 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2021
Operating Since
Location
Coordinates
32.2758, -102.8448
County
Andrews, TX
Nearby Plants
- Prospero SolarSolar300 MW · 4.5 km
- FrankelDistillate Oil9 MW · 13.1 km
- AliraSolar222.8 MW · 14.0 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 | Prospero Solar II, LLC (Longroad) | Longroad Energy | — |
| Owner(s) | Prospero Solar II, LLC (Longroad) | Longroad Energy; 7X Energy | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Longroad Energy; 7X Energy
This entity is not yet in the GEM ownership database — chain unavailable.
About
Prospero Solar II is a 250 MW solar photovoltaic power plant located in Andrews County, Texas. The plant, which began operating in 2021, is owned and operated by Prospero Solar II, LLC, a subsidiary of Longroad Energy. It utilizes single-axis tracking technology to maximize solar energy capture. The plant consists of a single generator and connects to the Electric Reliability Council of Texas (ERCOT) grid.
In its most recent year of operation, Prospero Solar II generated 667,046 MWh of electricity, achieving a capacity factor of 30.5%. The plant ranks 68th in size among 192 solar facilities in Texas, and 112th nationally out of 639 plants. 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
Interconnection Queue1 projectBeta
Prospero Solar II
OperationalSolar250 MWERCOT
Generation
38.0K MWh
Latest Month
667.0K MWh
Annual Generation
30.5%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$25.8/MWh
LCOE (Levelized Cost)
$25.0/MWh
Energy Value
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
ERCOT
LMP Node
PRSPERO2_ALL
Pricing Hub
HB_WEST
Secondary Zone
LZ_WEST
Location Type
Resource Node
Node Source
Curated node match
News & Articles (10)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
Fire Weather Watch (hazard)
NWS Midland/Odessa TX·5 days ago
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
Fire Weather Watch (hazard)
NWS Midland/Odessa TX·5 days ago
Industry·technology
Revolutionizing ERCOT Power Grid Forecasting with Enverus New Model
Discover Enverus new ERCOT P&R Forecast Model with proprietary inputs for accurate energy demand and renewable forecasting in Texas' dynamic...
Enverus (other)ERCOT (other)
Enverus·9 months ago
General
The Solar Industry Is Getting Smarter About Storm Defense
Stowing capabilities, tougher modules, and real-time data are the new frontline in solar power's fight against extreme weather.
POWER Magazine·10 months ago
Last updated 2026-03-21
View all 10 articles