Millions of middle-class California households are poised to pay an extra $24 per month for electricity, regardless of how much electricity they use. Regulators are hoping this utility billing policy will rescue their agenda to move everyone to electric cars and appliances by redistributing the massive costs of the state’s electric grid so utilities can lower their usage rates. But critics say the income-based premium will likely further hike utility costs for millions of Californians—nearly one-fifth of whom are already behind in paying their bills after household electricity rates almost doubled in the last decade—and likely won’t do much to...