The six lawmakers will try to work out differences between House and Senate versions of the energy legislation.
The Kansas secretary of health and environment denied the permit in October 2007 because of the plants' potential carbon dioxide emissions.
The House and Senate versions agree on those provisions.
But there are differences over other parts of the bill promoting renewable energy. Those proposals are included to attract support from lawmakers wary of new coal plants.
(Copyright 2009 by The Associated Press. All Rights Reserved.)