Consumers Energy failed to develop data and facts to justify slashing solar credits almost in half, challengers say.
A developer says that changes to state net metering and federal tax credits will make projects harder to put together without integrating storage.
Iowa utilities and clean energy groups both supported a new net metering law but now disagree on its interpretation.
Clean energy advocates are challenging incumbents in two utility co-op board elections this summer.
Solar advocates are concerned that the transition to a localized value-of-solar rate is happening too soon.