this post was submitted on 17 Sep 2025
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To be fully self sufficient you have to meet your energy consumption during the most cloudy days in winter.
2 days storage gives you a 5% chance of a blackout at some point during the year.
4 days storage gives you a 1% chance of a blackout at some point during the year.
You will not get to 0%.
I see we are including the nuclear winter scenarios!
Actually, I was thinking volcanos. They can reduce sunlight over a large area for prolonged periods.