Buckeye Power obtained loans from the Rural Electric Administration and financing through Kuhn, Loeb & Co. and the Ohio Company.

[6] To further reduce nitrogen oxide (NOx) emissions, AEP and Buckeye Power announced in 2001 they would install selective catalytic reduction (SCR) systems to complement their LO-NOx burners at Cardinal.

AEP negotiated a settlement with Black & Veatch, the contractor who installed the FGD equipment, to address the corrosion.

[9] Instead of constructing a new chimney for Unit 3's FGD system, AEP retrofitted a cooling tower to release waste heat into the atmosphere.

[10] AEP announced in 2015 that its Cardinal unit will be converted into a natural gas power plant by 2030 in order to comply with Environmental Protection Agency (EPA) standards.