Officials with jurisdiction over about 80% of California’s power grid say the state faces a grim outlook as summer heat, wildfires and a severe drought intensify.

“When you step back, I think many of us are really recognizing now that climate change and these extreme heat waves happening in the earlier parts of the summer now have forced all of us to do things that we really never imagined just a few years ago,” Elliot Mainzer, president and CEO of California’s Independent System Operator, said recently.