The Nevada Public Utilities Commission announced that it’s lowering the credits that it awards to customers for excess generation exported onto the grid to 88 percent of the retail electricity rate, from 95 percent, after new and existing solar capacity on the system topped 80 megawatts. Legislation passed in June 2017 that reinstated net metering set a tiered system to reimburse customers at slightly less than the retail rate of electricity, starting at 95 percent and decreasing in 7-percent increments for every 80 megawatts of supplies that are added, with a floor of 75 percent. Payouts for power from customer-sited renewables are falling from Nevada to South Carolina amid a flood of supplies of the zero-emitting generation.