While I'm all for solar power and battery storage , that article is a bit short on the facts .
" Whiltsher's bill has more than halved. She enjoys the novelty of watching her "new toy" transforming the flow of energy around her house, leaving her largely independent of the wires outside. "
Her bill has halved . So , that means she still needs the grid obviously .
Largely independant of the wires . You're either independant of you're not . Can't have it both ways even though the article title suggesting that we're getting off the grid .