NV Energy, owned by Warren Buffett’s Berkshire Hathaway, has been painted by the rooftop solar industry as a villain in Nevada’s ongoing solar policy wars, with critics accusing it of angling to kill off distributed PV – and Nevada regulators of bowing to its demands.

But NV Energy on Monday released a statement saying it will ask the state’s regulators to allow existing net energy metering (NEM) customers to remain on the old rules for a transition period of up to 20 years.