KRS 224.20-143: Bases for carbon dioxide emission reduction performance standards for

existing natural gas-fired electric generating units.

Except for adjustments of the performance standard on a case -by-case basis under KRS

224.20-144, the performance standard th at shall be established for existing gas -fired

electric generating units shall be based on the following:

(1) The best system of emission reduction which has been adequately demonstrated for

gas-fired electric generating units subject to the performance st andard. Best system

of emission reduction shall take into account the cost of:

(a) Achieving the emission reduction;

(b) Impacting non-air-quality health and the environment; and

(c) Maintaining energy requirements needed to serve the load of the electric

generating unit;

(2) Reductions in emissions of carbon dioxide that can reasonably be achieved through

measures undertaken at each gas-fired electric generating unit; and

(3) Efficiency and other measures that can be undertaken at the unit to reduce carbo n

dioxide emissions from the unit without switching from natural gas to other fuels

that emit less carbon dioxide than natural gas or by limiting the utilization of the

electric generating unit.