DiablolicalScientist t1_ja1wi6k wrote
Reply to comment by Dirty_South_Cracka in How Much Land Would It Require To Get Most Of Our Electricity From Wind & Solar? by BlitzOrion
Right... And aren't these panels needing replacement every 7 years or something?
Dirty_South_Cracka t1_ja1wz8b wrote
Most modern residential panels are rated for 80%+ output for 25 years. I think that's actually pretty impressive.
Talamakara t1_ja259j8 wrote
No solar panel on the planet exceeds 33.6% efficiency, it's called the Shockley Quizer Effect.
Dirty_South_Cracka t1_ja2yab5 wrote
Efficiency and output are two completely different metrics. That being said, 33.6% efficient is pretty damn good considering there are no moving parts. The most efficient steam turbines are only about 45% efficient and that is modern technology. The ones in use today are right around 35%.
pinkfootthegoose t1_ja3vptu wrote
they come with 25 year warranties to produce something like 80 or 85% of their original power for 25 years.. though they are expected to actually last something like 30+ years. least the new ones.
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