Dominion permits changes to gas-fired Warren County project

The Virginia Department of Environmental Quality is taking public comment until Oct. 22 on a Virginia Electric and Power d/b/a Dominion Virginia Power request to make changes in an air permit for the 1,280-MW Warren County power plant.

The utility wants to amend a Prevention of Significant Deterioration permit for this gas-fired project, which the company has said is in construction and due for operation by 2015. The PSD permit had been issued in December 2010.

The Dominion-Warren County Power Station is a combined-cycle facility located at the Warren Industrial Park in Warren County. The facility has a nominal generating capacity of 1,280 MW at ISO conditions.

On March 4, the DEQ received a permit application from Dominion that requested changes to the ancillary equipment based on design changes, the installation of a new emergency generator, and removal of exhaust flow monitoring requirements.

The utility proposes the following changes to the permitted equipment:

  • Reduction of the auxiliary boiler capacity from 88.1 MMBtu/hr to 47.6 MMBtu/hr;
  • Reduction of the fuel gas heater capacity from 52 MMBtu/hr to 24 MMBtu/hr; Increase the capacity of the emergency generator from 2,192 brake horsepower (bhp) to 2,220 bhp; and
  • Increase the capacity of the fire-water pump engine from 298 bhp to 376 bhp.

The proposed auxiliary boiler and fuel gas heater are natural gas-fired units; the emergency generator and fire-water pump engine are diesel-fired units. The facility also proposes to install a new 60 kW liquefied petroleum gas-fired emergency generator.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.