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If you just need the energy for the pool, a small setup without battery is all you need. Saves you half the price. Panels and inverters are around 900€ in Germany. Putting a battery on it makes another 1,200€ and it makes sense only, if you need power in the evening.
Not US-based, German, but residential prices go crazy here as well.
For me it was the best decision to buy a house. For two reasons: you surf on the asset inflation as well. Moving to a new house last year wasn’t that pricey as I only had to borrow the difference old vs new bigger house.
Second reason is psychology: I don’t know somebody who has stocks in their account in same height as a house price. Paying mortgage forces you to save money. Having a (low) 6-digit stock account, feels being rich and money flows out into buying things.