Garrison Energy Center LLC is a natural gas-fired power facility with 361 MW of EIA-reported nameplate capacity in Kent County, Delaware, registered as EIA Plant ID 57349. Cobalt Power, L. L. C. is the current owner; Garrison Energy Center LLC is the registered plant entity or operator. At 361 MW of EIA nameplate capacity, Garrison Energy Center is ranked third among Delaware power plants by capacity in the cited EIA-based directory.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Garrison Energy Center LLC · Kent County · PJM
Garrison Energy Center LLC is operating.
Natural Gas Fired Combined Cycle
Garrison Energy Center LLC is operating.
PJM
PJM · Kent County
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CTG1 | 235 MW 186 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2015 | Operating |
| STG2 | 126 MW 123 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jun 2015 | 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.
The Federal Register published FERC’s supplemental notice for Garrison’s market-based-rate filing, which included a request for blanket Section 204 authorization for future securities issuances and assumptions of liability.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA-860 lists generator CTG1, generator STG2 with this operating date.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Garrison Energy Center LLC has a reported capacity of 361 MW. Source: EIA Form 860.
Garrison Energy Center LLC is a Natural Gas Fired Combined Cycle facility in Kent County, DE, participating in the PJM market.
Garrison Energy Center LLC is in Kent County, DE, inside the PJM balancing area.
Garrison Energy Center LLC is operated by Garrison Energy Center LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Garrison Energy Center LLC reported 978.1 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
By capacity, Garrison Energy Center LLC ranks #336 of 538 operating plants of the same technology nationally. It ranks #2 of 3 in DE.
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.
