The Utah Department of Environmental Quality is taking comment until Dec. 18 on a draft air permit approval that would allow Heber Light & Power Co. to replace certain facilities at its Ray Farrell Internal Combustion Power Plant Site.
Heber has requested a modification to an air permit so it can replace power generators and become a synthetic minor source. Heber is requesting approval to remove three engine generators and replace them with two engine generators. The existing generators have a combined output rating of 3,675 kW and the replacement generators have a combined rating of 3,850 kW. The new generators have been tested in the research and development section of the power plant. They are lean-burn natural gas-fired and have oxidation catalysts to control carbon monoxide.
The new permit includes various limits for the plant, including:
- There shall not be more than 20,000 kW of genset capacity operating during the same calendar day.
- There shall not be more than 8,500 kW of diesel powered genset capacity operating during the same calendar day.
Heber is mandated to use natural gas in all generator engines except the emergency generators and the research and development generators that are being tested.