/sci/ - Science & Math

>>10140553
Today manufacturers guarantee 90% for 10 years and 80% for 20 years. If your panels degrade faster you get a free replacement. Actual degradation is even slower. No need to worry.

>>10082560
>would it be reasonable to make cities make all of their electricity, say if you literally covered every roof with panels?

sure, even in northeren regions, like Germany or Canada. you would just need a way to store it, like e.g. batteries from electric cars.