Zoidz
Well-Known Member
I'm planning a solar install for next spring and doing research. Similar to EV batteries, quality solar panels today have a 25 to 30 year warranty, guaranteed to provide up 85% (example) of their rated power. Just like an EV battery, the panel is still very usable after it passes that spec, with reduced output. Depending on the application, the panel could have another 5 to 10 years of useful life if the reduced capacity is acceptable.Nit, if you have net metering, charging isn't free, because you'd otherwise be paid for those electrons. And then there's the cost of the solar system. ROI is typically 20-30 years, and panels are typically only good for 25 years, so you're only breaking even.
I like the idea of being able to charge after a natural disaster has knocked out electricity, though you could do the same thing with gallons of gas and a generator, albeit in a more polluting, louder way.
ROI is more typically 10 - 15 years these days. Combined with a 30% tax credit, it's a decent investment.
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