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25 years is just what they guarantee, it probably lasts much longer. My solar roof (not Tesla, of course) is meanwhile 21 years old, and works almost like on d
by ChemSpider 3y ago
25 years is just what they guarantee, it probably lasts much longer.
My solar roof (not Tesla, of course) is meanwhile 21 years old, and works almost like on day 1. Since I dont expect a sudden failure in 4 years, my guess it that it will last another 10-20 years.
- itsoktocry 3y agoWhat leads you to believe a solar roof will last "much longer" than 25 years? >Since I dont expect a sudden failure in 4 years, my guess it that it will last another 10-20 years. Oh, you're just guessing.
- PaulDavisThe1st 3y agoFor the record, I had 4x some small panels (165W) from a reputable company that shall remain nameless. They had a 10 year warranty. Turns out that (a) the 10 year warranty actually meant "generating at least 90% of rated capacity in full sun after 10 years, but pro-rated across 10 years if not" and (b) they fell under this level after less than 5 years.
- iforgotpassword 3y agoThis is what I'm curious about. There seem to be really large differences between panels. Got two 150W panels for 78€ each this year. Peak output so far was around 240W, if performance stays like that for about five years I might break even in about 5 years for the full setup.
- phyzome 3y agoBear in mind that most residential roofs (of any sort) only last 10-20 years anyhow.