Re: Panel Long Term Efficiency
From my admittedly limited experience the prediction of a 1% loss per year is not at all accurate. I've still got an old, cheap (by the standards of the time) panel that is as close to 100% output as ever. It's only 15 Watts, but it's also 15 years old.
From what I've seen on the forum they either fail entirely or last the full 20 years expected with no noticeable degradation in output.
I'm interested in others' experience with this as well. It's similar to the topic Rolland brought up about lifespan of GTI's. Same situation too; the whole industry is so new compared to other technologies that there really isn't much data to form a conclusion from.
Four 175 Watt panels, OB MX60, 232 Amp hrs, OB 3524, Honda eu2000.
Ohm's Law: Amps = Volts / Ohms
Power Formula: Watts = Volts * Amps