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250 MW Solar operating in Milam, TX — Electric Reliability Council of Texas, Inc.
250 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2024
Operating Since
Coordinates
30.9602, -97.1245
County
Milam, TX
Nearby Plants
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 | Ben Milam Solar 3 LLC | SB Energy Corp | — |
| Owner(s) | Ben Milam Solar 3 LLC | SB Energy Corp | — |
| Status | Operating | operating | — |
GEM identifies the owner as SB Energy Corp
This entity is not yet in the GEM ownership database — chain unavailable.
The Orion III Solar Project is a 250 MW solar photovoltaic power plant located in Milam County, Texas. The plant, which began operating in 2024, is owned and operated by Ben Milam Solar 3 LLC. It utilizes single-axis tracking technology to maximize solar energy capture. Orion III is connected to the Electric Reliability Council of Texas (ERCOT) grid, operating within the TRE NERC region. The plant is ranked 67th out of 192 solar facilities in Texas and 141st nationally out of 639.
In its most recent year of operation, Orion III generated 551,808 MWh of electricity, achieving a capacity factor of 25.2%. Financial data is available for the plant, sourced from LBNL Solar. The plant has been the subject of 10 news articles, with coverage focusing on industry trends and deal-making.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
26.4K MWh
Latest Month
551.8K MWh
Annual Generation
25.2%
Capacity Factor
Data from 2024
$35.3/MWh
LCOE
Point of Interconnection
Nearest Substation
Rogers Substation · 138 kV
Substation Distance
0.118 km
Operator
Oncor
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
HALO_RN1
Pricing Hub
HB_NORTH
Alt. Hub / Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-03-14
View all 5 articlesElectric 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
Top 10 solar states
Data tables and metrics from the powerplantsinfo.org database.