I'm in Northern Europe (54N) and when I had solar installed 3 years ago I calculated it would be around 7 years, without incentives and without a battery. The p

I'm in Northern Europe (54N) and when I had solar installed 3 years ago I calculated it would be around 7 years, without incentives and without a battery. The price has dropped a lot since then, so it would be under 5 years now.