Updated 5 p.m. Friday
California utility regulators on Thursday approved major changes to the state's booming rooftop solar market that they say will more evenly spread the cost of energy and help reduce the state's reliance on fossil fuels in the evening.
The state has long led the nation in adoption of rooftop solar panels, and today more than 1.5 million California homes and other buildings have them. Under a decades-old program, people with solar panels can get paid by their power companies by sharing excess solar energy they don't need, leading some solar homes to pay minimal electric bills.
That's led to criticism that rooftop solar customers aren't paying their fair share into the rest of the energy grid, which many still rely on for power when the sun goes down. Power rates also include things like transmission equipment and wildfire prevention work, and regulators approve a set amount of money that utilities can recover from customers.