# Powerton

PJM asset profile · https://askthegrid.com/assets/facilities/powerton

Midwest Generation EME LLC - Tazewell County - PJM

Powerton is an operating, coal-fired conventional steam generating station comprising Units 5 and 6 in Pekin, Tazewell County, Illinois. Unit 5 entered service in September 1972 and Unit 6 in December 1975; each is rated at 892.8 MW nameplate capacity for a combined 1,785.6 MW. Powerton is connected to PJM through a 345 kV ComEd transmission interface and operates on subbituminous coal with natural gas available for startup. Environmental control systems installed or upgraded include dry sorbent injection (Trona DSI) and electrostatic precipitators to meet Illinois Combined Pollutant Standard and Mercury and Air Toxics Standards requirements. Following a reliability-related agreement between PJM and Midwest Generation, the units are currently expected to remain in operation through December 31, 2029.

## Metrics

- **Nameplate capacity:** 1785.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 879 — plant-879

## Facts

- **Technology:** Conventional Steam Coal
- **Operator:** Midwest Generation LLC

## Related parties

- **Parent company:** NRG Energy, Inc. — Ultimate parent company ([source](https://www.nrg.com/))
- **Operator:** Midwest Generation LLC — Operator ([source](https://midwestgenerationllc.com/))
- **EPC contractor / construction contractor:** MC Industrial / McCarthy — Environmental upgrade contractor ([source](https://www.mccarthy.com/projects/nrg-energy-powerton-units))
- **Former owner / parent company:** Edison Mission Energy — Historical parent (acquired by NRG 2014)

## Sources

- [gem.wiki](http://gem.wiki/Powerton_Generating_Station) — gem.wiki · public_source — Source retained for exact-record publication review.
- [investors.nrg.com](https://investors.nrg.com/news-releases/news-release-details/nrg-energy-enters-agreement-acquire-edison-mission-energy) — investors.nrg.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/powerton
Website: [Midwest Generation EME LLC](https://midwestgenerationllc.com/)

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