# Tolk Generating Station

SPP asset profile · https://askthegrid.com/assets/facilities/tolk-generating-station

Tolk Generating Station - Lamb County - SPP

Tolk Generating Station is a coal-fired, steam-electric generating station near Muleshoe in Lamb County, Texas. Designed in-house by Southwestern Public Service Company in the late 1970s, it comprises two conventional steam-coal units: Unit 1 completed in January 1982 (532 MW net summer capacity) and Unit 2 completed in 1985 (535 MW net summer capacity). The station operates under SPS ownership, with Xcel Energy as parent company. SPS procures all coal from TUCO Inc. under a long-term sole-supplier contract. The plant has undergone multiple capital improvements including baghouse replacement, fire suppression and control upgrades (2005–2006), fuel-orifice adjustments (2008–2009), and turbine-control retrofit with a Woodward MicroNet TMR system replacing obsolete Westinghouse controls (completed by 2009). Tolk hosts synchronous condensers to support regional grid stability. Units 1 and 2 are scheduled for retirement on March 31, 2029. Replacement generation at the Tolk site will include five Siemens Energy SGT6-5000F gas turbines and five generators totaling 928 MW, with first deliveries scheduled for early 2026.

## Metrics

- **Nameplate capacity:** 1135.8 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 6194 — plant-6194

## Facts

- **Technology:** Conventional Steam Coal
- **Operator:** Tolk Generating Station

## Related parties

- **Parent company:** Xcel Energy Inc. — parent company ([source](https://www.xcelenergy.com/))
- **Equipment supplier:** Siemens Energy — retrofit systems integrator and planned replacement turbine supplier ([source](https://www.siemens-energy.com/global/en/home/products-services/product/sgt6-5000f.html))
- **Equipment supplier:** Westinghouse — original turbine and control-equipment OEM

## Sources

- [prc.nm.gov](http://prc.nm.gov/2026/05/08/nmprc-approves-major-energy-plan-across-eastern-new-mexico) — prc.nm.gov · authoritative — Source retained for exact-record publication review.
- [newsroom.xcelenergy.com](https://newsroom.xcelenergy.com/news/xcel-energy-proposes-to-exit-coal-by-2030-MCTM23WA2GXNCEDORORWWXPQRGOU) — newsroom.xcelenergy.com · public_source — Source retained for exact-record publication review.

---

Canonical page: https://askthegrid.com/assets/facilities/tolk-generating-station
Website: [Tolk Generating Station](https://www.xcelenergy.com/working_with_us/tolk_request_for_information)

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