The Iowa Utility Board approved a smaller rate increase and said the company will have to analyze its coal fleet.
A report submitted to state lawmakers last week recommends several changes that are supported by clean energy groups.
Invenergy recently broke ground on three large solar projects totaling 750 megawatts near the Iowa-Minnesota border.
Solar installers say Evergy’s demand fee has made residential solar finances less certain and more complicated.
Missouri utility regulators instructed Evergy to run a one-year, $15 million pilot program using a “Pay As You Save” concept.