If you have solar panels and a home battery, summer makes the relationship between the two technologies fairly straightforward. Your solar panels generate electricity during the day, the battery stores whatever you don’t use, and that stored energy can power your home once the sun goes down.
Winter is different. Shorter days and weaker sunlight mean your panels generate much less electricity, often when your household is using more. That can leave a battery sitting partly empty just when electricity from the grid is most valuable. The answer can be to charge your battery from the grid instead.
