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 …
Nice breakdown of the data! Im in an area where it gets very warm and almost no rain. Also its 50c a KWH…so solar is definitely something we are looking to get soon.