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Panda Stonewall Energy Center

Stonewall Energy Project 778MW gas-fired combined-cycle power plant Stonewall Energy Project 778MW gas-fired combined-cycle power plant
Stonewall Project Environmental Lead, Michelle Golden.

One of the Nation’s Cleanest Power Plants

Virginia Power Plant

Bechtel, in consortium with Siemens Energy Inc., built the state-of-the-art, Stonewall Generating Facility, a 778-megwatt plant for Panda Power Funds. The new natural gas-fired, combined cycle power plant uses the latest, advanced emissions-control technology and will generate clean energy for up to 778,000 homes in Virginia and the District of Columbia.

View of the Stonewall power generating station construction site.
Heat recovery steam generator (HRSG) module heavy lift at the Stonewall power generating station.

How the Project Began

A local real estate developer and entrepreneur contacted Bechtel to partner on the development of a combined-cycle power plant in Northern Virginia that would support the growing region.

We helped him move the project forward by providing development capital and leading the permitting and development including securing the air permit, executing the water supply agreement, securing county and state approvals, completing the electric interconnection process, and selecting the long-term equity partner. Panda Power Funds closed financing within 2-1/2 years.

We also delivered project management, engineering, procurement, construction and startup services for the facility.

In addition to providing much-needed clean energy for the area, the Stonewall Generating Station is providing numerous economic benefits to the region. These include:

  • Placing 30 percent of contracting opportunities with local Virginia, District of Columbia, Maryland, Pennsylvania and West Virginia firms
  • Creating approximately 800 construction jobs at the peak of construction
  • Creating 30 long-term jobs after construction
  • Generating an estimated $20 million per year in direct and indirect spending
Workers at the Stonewall power generating station construction site.

Protecting the Chesapeake Bay Ecosystem

The Chesapeake Bay is the largest estuary in the United States and home to an enormous number of plants, animals and people. Its ecosystem includes local rivers and streams and the wildlife they support. Stonewall supplies its water needs using the output from the local wastewater treatment facility. Sanitized water undergoes treatment to be used in the plant and 100 percent of the facility’s own wastewater is reused on the site, helping conserve Virginia’s natural supply of drinking water and prevent discharge of harmful nutrients into the Potomac River and Chesapeake Bay watershed.

An engineer at the Stonewall power generating station construction site.

On-Time Delivery

Bechtel completed and delivered Stonewall to customer Panda Power Funds in 2017, ahead of schedule.


This is the fourth facility that Bechtel has built for Panda Power.

Heavy Haul

Watch our 500-tire trailer—only the sixth vehicle of its kind—​navigating the roads of Loudoun County to deliver massive equipment to the site. The gigantic truck, more than the length of a football field, was used to transport various component parts including the steam-turbine generators which will eventually generate energy for the plant. Loudon County residents and officials were a huge help to the project team, supporting the deliveries and helping minimize any impact on the community.