Mon Power and Potomac Edison, subsidiaries of FirstEnergy (NYSE: FE), asked West Virginia regulators to recover costs for emission control projects at two coal-fired power plants.

Earlier this year, the West Virginia legislature authorized the Public Service Commission to approve coal-fired boiler modernization and improvement plans. FirstEnergy is making emissions control investments at the 1,983-MW Harrison and 1,107-MW Fort Martin plants so they can comply with the U.S. Environmental Protection Agency’s Mercury and Air Toxics Standards and Cross-State Air Pollution Rule II requirements.

In total, 18 projects are planned or underway, including improving electro-static precipitators, installing mercury control technology, improving existing flue gas desulfurization equipment, enhancing continuous emission monitoring, tuning boilers, and improving controls and the selective catalytic reduction system.