Electricity- I thought that I had an innovative idea. Someone got there first

OldFrill
Have you considered it?
I’m not sure if I’m too bothered about recovering the cost. After all one doesn’t usually cover the cost of a lot of things. My car has probably lost thousands since I bought it but I put up with that because I need to get about in a reliable vehicle.
What I’m more concerned about is if we can afford to keep warm without worrying about buying oil.

You need to work out if your savings would cover the cost of the battery, bearing in mind that batteries have limited lifespan. Current advice is it's not cost effective.

Sounds interesting!

No, you can get batteries, the same type that store electricity from solar panels. If you don’t want or can’t have solar panels then you can store cheap nighttime energy to use during the day to power whatever you want to use instead of using electricity at peak time prices.

Isn’t this idea the old night storage heaters?
Or are you talking about using the power stored for cooking, lighting etc.?