The Grid Will Not Be Disrupted
Why Tesla’s Powerwall Won’t Catalyze a Solar Revolution
The announcement two weeks ago of Tesla Motor’s cheap new lithium-ion storage batteries set the renewable energy world on its ear. Breathless commentators pronounced them a revolutionary advance heralding cheap, ubiquitous electricity storage that would make solar power a 24/7-power source for the masses. Elon Musk, Tesla’s wunderkind CEO, fed these hopes at the glitzy product launch for the 10 kilowatt-hour (KWh) Powerwall home storage battery.
“You could actually go, if you want, completely off the grid,” he told them. “You can take your solar panels, charge the battery packs, and that’s all you use.”