Sun Valley Solar Project
ENGIEHill County
Sun Valley Solar Project is a 250 MW photovoltaic facility in Hill County, Texas. EIA's May 2026 inventory lists one operating generator under Plant ID 65303, with service beginning in December 2022 and Sun Valley Solar LLC as the registered operator. ENGIE developed the solar project and contracted 200 MW of output to Procter & Gamble. A separate 100 MW / 100 MWh battery was commissioned at the site in December 2023; its energy capacity is not part of the solar plant's EIA record.
Mapped infrastructure geometry associated with this asset.
EIA May 2026
EIA
Official project record
ENGIE
EIA plant 65303 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| SUNS | Solar Photovoltaic | Operating | 250 | Unknown |
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Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| SUNS | 250 MW 250 MW summer | Solar Photovoltaic PV | Dec 2022 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
ENGIE announced a 200 MW agreement with Procter & Gamble.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
2 ERCOT market resources · Solar
Capacity factor is average output vs. this plant's observed peak.
Observed ERCOT settlement prices at SUNVASLR_ALL over 365 days (2025-10-26 to 2026-10-25).
The TB1 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the cheapest and dearest hour of each day, gross of round-trip losses, and excludes ancillary services and any physical dispatch constraint. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.
Matched to the latest available ERCOT generation-interconnection queue record. Queue status and completion dates describe the queue record; operating status is verified separately against plant and market registrations.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA reports December 2022.
ENGIE commissioned a separate 100 MW / 100 MWh battery at the site.
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Sun Valley Solar Project reports 250 MW solar of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Sun Valley Solar Project is a Solar Photovoltaic facility in Hill County, TX, participating in the ERCOT market.
Sun Valley Solar Project is in Hill County, TX, inside the ERCOT balancing area.
Sun Valley Solar Project is operated by Sun Valley Solar LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Sun Valley Solar Project reports a commercial operation date of 2022. Current status: operating. Source: EIA Sep 2026.
Sun Valley Solar Project reported 575.2 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, Sun Valley Solar Project ranks #86 of 7,597 operating plants of the same technology nationally. It ranks #37 of 242 in TX.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
