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.