# Conowingo

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

Constellation Energy Generation, LLC - Harford County - PJM

Conowingo is an EIA-anchored 530.8 MW, 11-unit hydroelectric station on Maryland's lower Susquehanna River. Constellation identifies itself as the plant owner and operator and says the station has operated since 1928.

## Metrics

- **Nameplate capacity:** 530.8 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 1574 — plant-1574

## Facts

- **Technology:** Conventional Hydroelectric
- **Operator:** Constellation Energy Generation, LLC

## Sources

- [mde.maryland.gov](http://mde.maryland.gov/programs/water/WetlandsandWaterways/Documents/ExelonMD/FERC/Conowingo-Vol1-Public.pdf) — mde.maryland.gov · authoritative — Source retained for exact-record publication review.
- [sec.gov](http://sec.gov/Archives/edgar/data/1868275/000186827523000014/ceg-20221231.htm) — sec.gov · authoritative — Source retained for exact-record publication review.
- [conduitstreet.mdcounties.org](https://conduitstreet.mdcounties.org/wp-content/uploads/2016/01/report-2015-03-ferc-environmental-impact-statement-for-conowingo-dam.pdf) — conduitstreet.mdcounties.org · public_source — Source retained for exact-record publication review.
- [mde.maryland.gov](https://mde.maryland.gov/programs/water/wetlandsandwaterways/pages/exelonmd-conowingo-wqcapp.aspx) — mde.maryland.gov · authoritative — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/conowingo
Website: [Constellation Energy Generation, LLC](https://www.constellationenergy.com/about/locations/conowingo-hydroelectric-generating-station.html)

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