Californians cannot sue for damages when a utility shuts power in compliance with Public Utilities Commission guidelines to reduce the risk of starting a wildfire, the state Supreme Court held Monday.

Answering a question posed by the U.S. Court of Appeals for the Ninth Circuit, California’s high court said allowing a proposed $2.5 billion class action to proceed against Pacific Gas & Electric for cutting electricity to customers in 2019 would infringe upon state regulators’ authority.