Battery-Stored Solar Power Sparks Backlash From Utilities
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California’s three biggest utilities are sparring with their own customers about systems that store energy from the sun, opening another front in the battle that’s redefining the mission of electricity generators.
Edison International, PG&E Corp. and Sempra Energy said they’re putting up hurdles to some battery backups wired to solar panels because they can’t be certain the power flowing back to the grid from the units is actually clean energy.