The Arizona Corporation Commission (ACC) has opened a docket and issued a memo on January 27, requesting comments on the process and methodology for establishing the costs and benefits of distributed generation (DG), including net metering systems. A number of DG costs and benefits were identified in an Arizona Public Service Net Metering Cost Shift Solutions docket that concluded late last year.

The Arizona Corporation Commission modified the state's net metering plan in a move that will costs solar customers a little money every month, but not nearly as much as Arizona Public Service Co. wanted. Commissioners voted 3-2 to charge solar customers 70 cents per kilowatt of installed solar on their homes every month to help defray some costs non-solar customers. That means a house with a 5-kilowatt system would pay $3.50 per month on their bill.