The California Supreme Court sided with environmental groups in a Thursday ruling, saying that state lawyers were wrong in their claim that the Public Utilities Commission’s decision to slash rooftop solar incentives could not be challenged.

The unanimous decision sends the case brought by the three groups back to the appeals court.

The groups argue the utilities commission violated state law in 2022 when it cut the value of the credits that panel owners receive for sending their unused power to the electric grid by as much as 80%. The rules apply to Californians installing the panels after April 14, 2023.

The Supreme Court justices said the appeals court erred in January 2024 when it ruled against the environmental groups. In that decision, the appeals court said that courts must d

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