Earlier quoted context omitted.
Solar + a few hours of capacity are economical viable to run on a day and night cycle. Each day they charge up, and each day they discharge, with a market price that goes up and down in a similar pattern. This is possible for the southern part of EU, but more so in the southern parts of that (Egypt and below). Further north and solar get displaced by wind as the primary source of energy, and wind do not have a day cy…
Not true. We have 10kw solar panels with 64x ,280ah LIFO batteries. Even in the winter we manage for 90% using only solar/battery power. We have a detached family house in the Netherlands using slightly above average. Our monthly bill is about 20 euros max. I build the entire setup myself for about 10k euros.
Would you sell your setup for 10k euros, or is the value of your setup possible worth more than the cost of doing it yourself. 10k to be free of the electric company for all future seems like a very good deal if purchasable at that price, and if offered I think there would be quite a few homes willing to take you up on it.