 In March 2016, SpaceX bought $90 million of SolarCity stock.In late 2015, SolarCity withdrew from solar sales and installation in Nevada, following the decision by the state's Public Utilities Commission (PUC) to raise the monthly service charge for rooftop solar customers and progressively reduce the return on solar energy sold back into the grid under the state's net metering rule.Under the new rules, the monthly service charge imposed on Nevada Power's rooftop solar-generating customers rose from $12.75 to $17.90, and was scheduled to rise to $38.51 by January 1, 2020; simultaneously, the rates given to rooftop solar generating customers for their surplus solar energy were also clawed back and were to continue to decline over the ensuing four years.