(AP) — Ameren Missouri has become the state’s second large utility to seek an early halt to a solar rebate program that rewards consumers for using alternative energy sources.

reports that the state’s largest utility is asking the Missouri Public Service Commission for permission to curtail payment of millions of dollars in solar rebates before the year’s end.

The company says it has received more than $35 million in solar rebate requests, creating financial strain.

Missouri voters approved a 2008 ballot measure that that requires investor-owned utilities to derive a certain percentage of their electric generation from renewable resources. The law caps rate increases derived from that measure at 1 percent.

Kansas City Power & Light made a similar request in July.