AEUG Union Solar, LLC is a solar power facility with 325 MW of EIA-reported operating capacity in Union County, Ohio, registered as EIA Plant ID 64660. ACCIONA is the public owner or developer; Acciona Energy USA Global, LLC is the registered plant entity or operator. Project filings list 760,000 solar panels for the facility. Commercial operation began on December 26, 2024.
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
Primary generation technology.
Acciona Energy USA Global, LLC · Union County · PJM
AEUG Union Solar, LLC is currently operating; a closure or retirement is listed for July 2026.
Installed equipment documented in public project records.
Best-supported operating milestone.
Solar Photovoltaic
AEUG Union Solar, LLC is currently operating; a closure or retirement is listed for July 2026.
AEUG Union Solar, LLC is currently operating; a closure or retirement is listed for July 2026.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| AUS | 325 MW 325 MW summer | Solar Photovoltaic Solar · PV | Nov 2024 | 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.
PJM filed an executed Interim Interconnection Service Agreement among PJM, AEUG Union Solar, LLC, and AEP Ohio Transmission Company for the Union Solar facility.
PJM
PJM · Union County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Red Tailed Hawk Solar LLC | 360 MW | TX | |
| AEUG Union Solar, LLCCurrent | 325 MW | OH | |
| Fort Bend Solar LLC | 240 MW | TX | |
| La Chalupa, LLC | 198.5 MW | TX | |
| Cunningham Storage | 190 MW | TX | |
| Palmas Wind, LLC | 144.9 MW | TX | |
| High Point Solar LLC | 100 MW | IL | |
| San Roman Wind I, LLC | 95.3 MW | TX |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator AUS with this operating date.
ACCIONA announced the commercial-operation date for Union Solar and the start of energy injection into the Ohio grid.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
AEUG Union Solar, LLC has a reported capacity of 325 MW. Source: EIA Form 860.
AEUG Union Solar, LLC is a Solar Photovoltaic facility in Union County, OH, participating in the PJM market.
AEUG Union Solar, LLC is in Union County, OH, inside the PJM balancing area.
AEUG Union Solar, LLC is operated by Acciona Energy USA Global, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
AEUG Union Solar, LLC reported 664.7 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
By capacity, AEUG Union Solar, LLC ranks #27 of 7,234 operating plants of the same technology nationally. It ranks #2 of 74 in OH.
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.
