# Timmerman Power Plant

ERCOT asset profile · https://askthegrid.com/assets/facilities/timmerman-power-plant

Lower Colorado River Authority - Caldwell County - ERCOT

Timmerman Power Plant is a natural-gas-fueled peaker facility near Maxwell in Caldwell County, Texas, owned and operated by the Lower Colorado River Authority. It comprises two generating units, each powered by 10 Wärtsilä 50SG reciprocating engines (20 engines total). Unit 1 connected to the grid in August 2025 and Unit 2 in April 2026. The fully operational plant provides approximately 372 MW (net maximum capacity) of dispatchable generation to the ERCOT grid. The plant can ramp up and shut down in minutes to supply power during peak demand periods.

## Metrics

- **Nameplate capacity:** 368.00000000000006 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 66335 — plant-66335

## Facts

- **Technology:** Natural Gas Internal Combustion Engine
- **Operator:** Lower Colorado River Authority

## Related parties

- **Owner / operator:** Lower Colorado River Authority — Owner and operator ([source](https://www.lcra.org/))
- **Equipment supplier:** Wärtsilä — Reciprocating-engine OEM and supplier ([source](https://www.wartsila.com/energy))
- **Regulator / regulatory counterparty:** Texas Commission on Environmental Quality — Environmental permitting authority ([source](https://www.tceq.texas.gov/))

## Sources

- [gov.texas.gov](https://gov.texas.gov/news/post/governor-abbott-lcra-announce-opening-of-power-plant-in-maxwell) — gov.texas.gov · authoritative — Source retained for exact-record publication review.
- [gov.texas.gov](https://gov.texas.gov/news/post/governor-abbott-lcra-announce-timmerman-power-plant-is-fully-operational) — gov.texas.gov · authoritative — Source retained for exact-record publication review.
- [lcra.org](https://lcra.org/news/news-releases/lcra-to-build-second-unit-at-new-peaker-power-plant-in-central-texas) — lcra.org · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/timmerman-power-plant
Website: [Lower Colorado River Authority](https://www.lcra.org/)

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