> Even the solar panel market is self defeating. Once there is enough installed power the demand will drop off sharply as the refresh cycle is too long.
If the average panel lifetime is 25 years, and it takes > 25 years to reach "full capacity" (whatever that might mean or whatever level that is at), then by definition there will be a continuous cycle of panel replacement taking place.
It's not as if we get all the PV installed in 12 months and then it lasts for 25 years ...
The 25 year thing comes from the 25 year warranties - they’re generally warrantied to be at 80% power capability at 25 years. I don’t know the real lifetime, but presumably it’s a lot longer than 25 years. And by that point, maybe we’ll have the deuteriumdollar…
Being mounted on a moving vehicle subjects them to a much more dynamic and hostile environment than having arguably better quality, fixed panels sitting in a dry desert for 25 years. I’m actually impressed that yours lasted 10 years.
Open for debate. They are mounted horizontally on the van, which makes them subject to almost no face-on wind forces at all. The aluminum frames are bolted to the van, but the van structure is metal and likely doesn't move much in terms of distances between bolts other than due to thermal expansion, which is also true of my ground-mount array (in the dry desert :)
There's more vibration on the van, but how the impacts their life compared to the months of daily 30mph+ winds hit the faces/rear of the ground mount array seems hard to tell without a lot of research (which someone may have done).
If the average panel lifetime is 25 years, and it takes > 25 years to reach "full capacity" (whatever that might mean or whatever level that is at), then by definition there will be a continuous cycle of panel replacement taking place.
It's not as if we get all the PV installed in 12 months and then it lasts for 25 years ...