I have a modest set of solar panels on an entirely ordinary house in suburban London. On average they generate about 3,800kWh per year. We also use about 3,800kWh of electricity each year. Obviously, we can't use all the power produced over summer and we need to buy power in winter. So here's my question: How big a battery would we need in order to be completely self-sufficient? Background …
It’s an idea that’s been played with a few times, but there are many energy loss points in such a system, as well as logistics for keeping the “stack” from falling over. The best so far is pumping water up to an artificial lake, but that’s still not very efficient.
It’s an idea that’s been played with a few times, but there are many energy loss points in such a system, as well as logistics for keeping the “stack” from falling over. The best so far is pumping water up to an artificial lake, but that’s still not very efficient.