# Vienna Operations

PJM asset profile · https://askthegrid.com/assets/facilities/vienna-operations

Vienna Power LLC - Dorchester County - PJM

The plant comprises two units: Generator 8, a 162 MW residual-fuel-oil steam turbine that began operating in January 1972 (installed December 1971), and Generator 10, an 18.6 MW distillate-fuel-oil combustion turbine that began operating in January 1968 (installed April 1968). Vienna Power LLC owns the plant at 100%, NRG Vienna Operations Inc operates it, and NRG Energy Inc is the parent company. The facility draws cooling water from the Nanticoke River and interconnects to the 138 kV grid via Delmarva Power's transmission system. NRG Energy acquired the plant in June 2001 from Delmarva Power and Light, a subsidiary of Conectiv, as part of a 1,081 MW generation portfolio purchase. The plant participates in PJM's capacity market through NRG Power Marketing LLC. As of June 2026, both generators remain in operating status with no planned retirement date.

## Metrics

- **Nameplate capacity:** 180.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 1564 — plant-1564

## Facts

- **Technology:** Petroleum Liquids
- **Operator:** NRG Vienna Operations Inc

## Related parties

- **Parent company:** NRG Energy Inc — Parent Company ([source](https://www.nrg.com/))
- **Transmission owner / interconnecting utility:** Delmarva Power & Light Company — Transmission/Distribution Owner ([source](https://www.delmarva.com/))
- **Former owner:** Delmarva Power and Light Company — 2001 Seller ([source](https://www.delmarva.com/))
- **Power marketer / market participant:** NRG Power Marketing LLC — Market Seller ([source](https://www.nrg.com/))
- **Financial advisor:** CIBC World Markets Corp. — Transaction Financial Advisor

## Sources

- [api.eia.gov](https://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&data[3]=operating-year-month&end=2026-06&facets[plantid][]=1564&frequency=monthly&start=2026-06) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [investors.nrg.com](https://investors.nrg.com/news-releases/news-release-details/nrg-energy-acquire-conectiv-fossil-assets) — investors.nrg.com · public_source — Source retained for exact-record publication review.
- [investors.nrg.com](https://investors.nrg.com/news-releases/news-release-details/nrg-energy-enters-pjm-market-acquisition-1081-mw-generation) — investors.nrg.com · public_source — Source retained for exact-record publication review.
- [gem.wiki](https://www.gem.wiki/Vienna_Operations_power_station) — gem.wiki · public_source — Source retained for exact-record publication review.
- [govinfo.gov](https://www.govinfo.gov/content/pkg/CZIC-td197-t7-e58-1982/html/CZIC-td197-t7-e58-1982.htm) — govinfo.gov · authoritative — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/vienna-operations
Website: [Vienna Power LLC](https://www.nrg.com/generation/asset-map.html)

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