# Davis-Besse Nuclear Power Station, Unit 1

PJM asset profile · https://askthegrid.com/assets/facilities/davis-besse-nuclear-power-station-unit-1

Energy Harbor Nuclear Generation LLC - Ottawa County - PJM

Davis-Besse Nuclear Power Station, Unit 1 is a single pressurized-water reactor (Babcock & Wilcox raised-loop design) located in Oak Harbor, Ottawa County, Ohio, on Lake Erie approximately 35 miles east of Toledo. The initial operating license (NPF-3) was issued April 22, 1977; the renewed license was issued December 8, 2015, and expires April 22, 2037. The plant is located in the PJM market (ATSI zone) and serves as clean baseload nuclear generation. Original owners were Cleveland Electric Illuminating Company (51.38%) and Toledo Edison Company (48.62%), transferred to FirstEnergy Nuclear Generation Corporation in 2005. FirstEnergy Solutions emerged from bankruptcy as Energy Harbor in 2020. Vistra completed its acquisition of Energy Harbor on March 1, 2024. Vistra Operations Company LLC is the current operator; Energy Harbor Nuclear Generation LLC remains the legal owner. The plant employs more than 720 people and is situated on a 954-acre site. Bechtel served as original architect-engineer and performed the 2002 reactor-vessel-head replacement (the first such replacement in the United States) and the 2014 steam-generator replacement. Two Babcock & Wilcox replacement once-through steam generators (each 550 tons) and an AREVA reactor-vessel closure head were installed. A GE turbine-generator supplies the electrical generation equipment. A measurement-uncertainty-recapture uprate was approved in June 2008. In January 2026, Vistra and Meta announced 20-year power purchase agreements supporting continued operation and planned equipment uprates, with incremental capacity scheduled online through 2034.

## Metrics

- **Nameplate capacity:** 925.2 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 6149 — plant-6149

## Facts

- **Technology:** Nuclear
- **Operator:** Vistra Operations Company LLC

## Related parties

- **Operator:** Vistra Operations Company LLC — Current operator and NRC licensee ([source](https://www.vistracorp.com/))
- **Owner:** Energy Harbor Nuclear Generation LLC — 100% owner and NRC licensee ([source](https://energyharbor.com/))
- **Affiliate:** Vistra Corp. — Ultimate parent through Vistra Vision acquisition structure ([source](https://www.vistracorp.com/))
- **Equipment supplier:** Babcock & Wilcox — Reactor vendor
- **EPC contractor / construction contractor:** Bechtel — Original architect-engineer and major replacement contractor ([source](https://www.bechtel.com/projects/davis-besse-nuclear-power-station/))
- **Equipment supplier:** Babcock & Wilcox — Steam-generator equipment supplier ([source](https://www.babcock.com/home/products-services/steam-generators/steam-generators))
- **Equipment supplier:** General Electric — Original turbine-generator manufacturer ([source](https://www.gevernova.com/steam-power/nuclear-turbine-island))
- **Former owner:** Energy Harbor Nuclear Corp. — Former operator and license holder ([source](https://energyharbor.com/))
- **Offtaker / power marketer:** Meta Platforms, Inc. — Long-term power purchaser ([source](https://about.fb.com/))
- **Regulator:** U.S. Nuclear Regulatory Commission — Nuclear regulator ([source](https://www.nrc.gov/))
- **Balancing authority / market operator:** PJM Interconnection LLC — Balancing authority and market operator ([source](https://www.pjm.com/))

## Sources

- [portal.energyharbor.com](http://portal.energyharbor.com/content/dam/fes/about/files/plantfactsheets/davis-besse-plant--facts-at-a-glance.pdf) — portal.energyharbor.com · public_source — Source retained for exact-record publication review.
- [world-nuclear.org](http://world-nuclear.org/nuclear-reactor-database/details/Davis-Besse-1) — world-nuclear.org · public_source — Source retained for exact-record publication review.
- [decommissioningcollaborative.org](https://decommissioningcollaborative.org/davis-besse/) — decommissioningcollaborative.org · public_source — Source retained for exact-record publication review.
- [decommissioningcollaborative.org](https://decommissioningcollaborative.org/davis-besse/page/4/) — decommissioningcollaborative.org · public_source — Source retained for exact-record publication review.
- [investor.vistracorp.com](https://investor.vistracorp.com/2023-03-06-Vistra-to-Create-Vistra-Vision%2C-a-Leading-Zero-Carbon-Generation-and-Retail-Platform%2C-Through-the-Acquisition-of-Energy-Harbor) — investor.vistracorp.com · public_source — Source retained for exact-record publication review.
- [investor.vistracorp.com](https://investor.vistracorp.com/2023-09-29-Vistra-Receives-Nuclear-Regulatory-Commission-Approval-to-Own-Operate-Three-Energy-Harbor-Nuclear-Plants) — investor.vistracorp.com · public_source — Source retained for exact-record publication review.
- [investor.vistracorp.com](https://investor.vistracorp.com/2024-03-01-Vistra-Completes-Energy-Harbor-Acquisition) — investor.vistracorp.com · public_source — Source retained for exact-record publication review.
- [investor.vistracorp.com](https://investor.vistracorp.com/2026-01-09-Vistra-and-Meta-Announce-Agreements-to-Support-Nuclear-Plants-in-PJM-and-Add-New-Nuclear-Generation-to-the-Grid) — investor.vistracorp.com · public_source — Source retained for exact-record publication review.

---

Canonical page: https://askthegrid.com/assets/facilities/davis-besse-nuclear-power-station-unit-1
Website: [Energy Harbor Nuclear Generation LLC](https://energyharbor.com/)

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