# Pin Oak Creek Energy Center, LLC

ERCOT asset profile · https://askthegrid.com/assets/facilities/pin-oak-creek-energy-center-llc

Freestone Power Generation LLC - Freestone County - ERCOT

Pin Oak Creek Energy Center, LLC is a 444-MW (net summer) natural-gas simple-cycle peaking facility located at 1366 FM 488 near Fairfield in Freestone County, Texas. The facility comprises two General Electric 7FA.05 combustion turbines (GT5 and GT6), each rated at 212 MW net summer capacity, plus a 1.5 MW diesel emergency generator. (25%), with Freestone as the EIA utility operator. Calpine Corporation developed the project and obtained Texas Energy Fund financing; Constellation Energy acquired Calpine in January 2026, making Pin Oak Creek part of the Constellation fleet.

## Metrics

- **Nameplate capacity:** 444 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 67500 — plant-67500

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine
- **Operator:** Freestone Power Generation LLC

## Related parties

- **Developer / parent company:** Calpine Corporation — Developer / project sponsor; parent company (via Freestone Power Generation) until May 2026 ([source](https://www.calpine.com/))
- **Parent company:** Constellation Energy Corporation — Acquirer / current parent company of Calpine ([source](https://www.constellationenergy.com/))
- **Former owner:** Energy Capital Partners (ECP) — Prior owner (seller in Calpine transaction)
- **Equipment supplier:** General Electric (GE Vernova) — Equipment supplier / OEM ([source](https://www.gevernova.com/gas-power/products/gas-turbines/7f))

## Sources

- [calpine.com](https://calpine.com/calpine-secures-texas-energy-fund-loan-for-pin-oak-creek-peaking-facility-in-freestone-county) — calpine.com · public_source — Source retained for exact-record publication review.
- [investors.constellationenergy.com](https://investors.constellationenergy.com/news-releases/news-release-details/constellation-reports-first-quarter-2026-results) — investors.constellationenergy.com · public_source — Source retained for exact-record publication review.
- [us-east-1.storage.xata.sh](https://us-east-1.storage.xata.sh/m70jvtdh5jmpthjl32bb6937i8bvs1f8) — us-east-1.storage.xata.sh · public_source — Source retained for exact-record publication review.
- [constellationenergy.com](https://www.constellationenergy.com/news/2026/01/constellation-completes-calpine-transaction-powering-americas-clean-energy-future.html) — constellationenergy.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/pin-oak-creek-energy-center-llc

Source: Ask the Grid — https://askthegrid.com/