Spend the thick end of 23K on panels and batteries to allow you to be mostly off grid. Not completely of course, but you would probably be in the region of a 20 year payback on investment. of course the rug would be pulled out from under your feet because any government would find a way to tax it.
Once their buddies squeal, then you will find yourself no better off…possibly worse off. Look at electric cars, twice as much to buy, twice as much to run, full rate of road tax, no real investment in charging points (but who wants to pay 80p per kW)….that dream died fast..