Net Metering:

In 2016, the Arizona Corporation Commission (ACC) voted to replace net metering with “net billing”, where new customer-generators are credited at an avoided cost rate for energy exported to the grid (ACC Decision No. 75859, 2016). The specific avoided cost rates for exported energy differ by utility but are based on ACC’s adopted avoided cost methodology.  

Additionally, in December 2024, the ACC voted to approve a grid access charge (GAC) for residential solar customers in Arizona Public Service (APS) jurisdiction. The GAC is a $2-3, fixed charge added to residential solar customers’ bills (ACC Decision No. 79293, 2024).