Dominion Virginia Greensville County Power Station

Client: Dominion Virginia Power (Dominion)

Location: Greensville County, VA, U.S.

Business Segment: Energy Solutions

Industry: Power

Services: Engineering and DesignProcurementConstruction

Map showing the location of Dominion Virginia Greensville County Power Station

Executive Summary

Fluor provided engineering, procurement, construction and commissioning services for Dominion's combined-cycle, natural gas-fired power station, which would be the largest and most efficient natural gas-fueled power station in Virginia upon completion. This project followed the successful completion of Dominion's Bear Garden and Brunswick power stations in the state.

Image Courtesy of Dominion Virginia Power (Dominion)

Client's Challenge

The 1,588-megawatt Greensville County Power Station would produce enough electricity to power 400,000 homes in Virginia at peak demand. The new power station is located on a 1,143-acre site on the Greensville and Brunswick County line in southern Virginia.

This new approach to clean energy also serves as a cost-effective and reliable step toward achieving the federal clean-air standards.

The power station would be be a major boost for the region's economy. In its first year of operation, it was expected to provide up to $8 million in property taxes for Greensville County. Post-construction economic benefits were projected to amount to about $36 million annually, and about 166 jobs would be supported, with roughly half of these in Greensville County.

Over its expected 36-year life, the station is expected to save Dominion Virginia Power customers about $2 billion as a result of the company not having to purchase power from market sources.

Fluor's Solution

Fluor was awarded a limited notice to proceed on Dominion's Greensville power station in April 2015. In July 2016, Dominion granted Fluor full notice to proceed with engineering, procurement, construction and commissioning on the project. This was Fluor's third successive project for Dominion.

The facility features three Mitsubishi Hitachi Power Systems Americas (MHPSA) 501 J advanced combustion turbine generators, followed by three Alstom Heat Recovery Steam Generators (HRSG) operating in combined cycle with one Alstom steam turbine generator. The design includes an 80-cell Air Cooled Condenser (ACC), and Thermal Energy Storage (TES) System. The TES system includes a field erected TES tank and chiller system, which improves peak energy output during summer ambient conditions. Fluor continued our attention to sustainable design with plans to achieve Leadership in Energy and Environmental Design (LEED®) certification for the Control and Administration building. Additionally, nearly three miles of new and/or upgraded roads were put in place to support the craft population and heavy material deliveries.

Our office in Charlotte, North Carolina, led the design effort with support from our office in the Philippines and global subject matter experts. Our integrated team provided innovative designs, smart supply chain solutions and experienced construction and commissioning teams. A Fluor subsidiary provided construction tools and rentals.

One thousand craft workers were on site during peak construction. We continued our relationship with Southside Virginia Community College to develop and implement a welding training program.

The project employed modular construction. HRSG and turbines arrived as modules and were assembled at the site. We self-performed both the design and assembly of modularized pipe racks and stair towers, which were assembled in a designated yard adjacent to the new facility.

We also built infrastructure at the site, including power plants, roads, a water treatment facility and utilities.

Conclusion

The Greensville County Power Station was completed in 2018. It was named Engineering Project of the Year by S&P Global Platts in its 2019 Global Energy Awards.