3 ms·

For 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 y

For 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 ago
This 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.