cross-posted from: https://slrpnk.net/post/8471507
this post was submitted on 10 Apr 2024
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A Boring Dystopia
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Solar panels degrade over time, I don't know what the numbers are but they used to be dysmal, like 30% reduction in generation capacity over 5 years. Whatever the actual numbers are, we will constantly be replacing panels. I am sure we can figure out refurbishing too at some point.
Yeah they're definitely better now, I'm reading anywhere between 1% per year or 12.5% at year 25. There are other things that can pop up though, micro cracks causing localized overheating of the panel - to backing failures and other physical issues. I'm interested in standing some up at some point but the capital eludes me at the moment.
I'm am certainly wrong, that figure was something my dad told me as a kid, we were on solar back then.
No worries at all. Like you said though, with advancements people will likely do upgrades over time anyways. I don't have numbers off the top of my head, but even just the per panel efficiencies have grown fantastically since your last experience.
Yeah I was totally wrong, that is great though!
??? Monocrystalline silicon losses less than .4% a year. That means after 50 years it's still producing 82% of when it was new. It takes 90 years to get a 30% reduction rate.
https://www.engineering.com/story/what-is-the-lifespan-of-a-solar-panel
Do you know the type of pv panel that was used 20+ years ago? I lived in an off grid house and my dad mentioned that at one point.
Monocrystalline silicon was used 20 years ago. It's the oldest solar technology.
According to the source data in a link in the page I linked thin film CIGS rollable solar sheets was the least durable. Panels installed before 2000 had a degradation of 3.5% a year. That's 10 years to lose 30%. But CIGS solar systems installed after the year 2000 show only .02% degradation a year. The document talks about manufacturing defects that were corrected.
http://www.nrel.gov/docs/fy12osti/51664.pdf
Ok, I'm just flat wrong! Til!
Yeah but your point is that solar panels degrade 30% after 5 years, and then you reframe the context for 20 years ago?
Go astrosurf somewhere else.
Any grid has a maintenance cost and degradation. Solar panels isn't any different.
The fuck are you talking about. I was wrong. Get over it.