# Cumberland (NJ)

PJM asset profile · https://askthegrid.com/assets/facilities/cumberland-nj

Calpine New Jersey Generation LLC - Cumberland County - PJM

Cumberland (NJ) is a 231.2 MW natural-gas-fired combustion-turbine power plant at 4001 East Main Street, Millville, Cumberland County, New Jersey, operated by Calpine New Jersey Generation LLC. The facility comprises two generators: CUMB (99.4 MW nameplate, operating since May 1990) and CUMB2 (131.8 MW nameplate, operating since June 2009). Both units can use kerosene as a secondary fuel. According to a PJM notice dated August 26, 2024, the CUMB unit is scheduled for deactivation effective June 1, 2027, due to the facility's inability to comply with finalized New Jersey carbon-emissions regulations in the 2027/2028 delivery year.

## Metrics

- **Nameplate capacity:** 231.2 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 5083 — plant-5083

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine
- **Operator:** Calpine New Jersey Generation LLC

## Related parties

- **Parent company:** Constellation Energy Corporation — Corporate parent ([source](https://www.constellationenergy.com/))
- **Portfolio former owner:** Conectiv, LLC — Financing covers a portfolio that includes Cumberland (NJ).
- **Parent company / seller:** Pepco Holdings, Inc. — Former corporate parent of seller

## Sources

- [ecpgp.com](http://ecpgp.com/equity/portfolio/calpine) — ecpgp.com · public_source — Source retained for exact-record publication review.
- [constellationenergy.com](https://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.
- [dep.nj.gov](https://dep.nj.gov/wp-content/uploads/boss/public-notices/cecsb.pdf) — dep.nj.gov · authoritative — Source retained for exact-record publication review.
- [getfilings.com](https://getfilings.com/sec-filings/100708/CALPINE-CORP_8-K/) — getfilings.com · public_source — Source retained for exact-record publication review.
- [mapsdep.nj.gov](https://mapsdep.nj.gov/arcgis/rest/services/Features/Utilities/MapServer/19/query?where=PLANT_CODE%3D5083&outFields=*&returnGeometry=false&f=pjson) — mapsdep.nj.gov · authoritative — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/cumberland-nj
Website: [Calpine New Jersey Generation LLC](https://www.calpine.com/)

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