California may need to invest up to $50 billion in updating its electricity grid over the next 12 years in order to fulfill its climate goals, a new report has found. The landmark SB 100 bill, passed in 2018, set a target of powering statewide electricity needs with 100 percent clean energy by 2045. But achieving this ambition will be an expensive task, warned the report, conducted by data analytics firm Kevala for the California Public Utilities Commission.