[kkfx]

A small note: I have a domestic p.v. system with small LFP storage and well... It's ~3 years old and now the same battery capacity (8kWh) cost a bit less the THE DOUBLE, witch is ~9000€ instead of a bit more than 5000€...

Industrial battery prices are lowered, in China, definitively not here in the EU, and at this rates the expensive small UPS for a home, that's are such capacity, because to being semi-autonomous a typical home need at least 80-100kWh to avoid too deep DoD and support heating in new all-electric and very well insulated homes. And I talk about mild climate where there is enough Sun in the winter to have not the autonomy but at least margin also in December, January and February. Oh, and I talk about self-assembled systems like mine witch is legal here, but not legal in every countries, because retail prices for a complete systems installed by them are FAR more expensive, about THREE time more, enough to make the investment so expensive to be a nonsense.