poVoqJan 26

Goodbye to the idea that solar panels “die” after 25 years. A new study says the warranty does not mark the end, and real-world performance can last for decades

https://slrpnk.net/post/33327057

Goodbye to the idea that solar panels “die” after 25 years. A new study says the warranty does not mark the end, and real-world performance can last for decades - SLRPNK

Lemmy

Show threadAeronMelonJan 26
Many Japanese homes are still using solar water heaters that were installed in the 1980s. They’re very inefficient now, but they still work if you take care of them.
Show threadcogmanJan 26
Oh no. Water heaters are the most efficient form of solar. Newer solar water heaters might be a bit more efficient than old systems, but we are talking like 80->90%. PVC solar peaks in the 20% range.
Show threadgandalf_der_12te
20% of a looot of energy is still a lot though
Jan 27 at 7:05amWeb
Show threadcogmanJan 28
What’s funny is it’s enough energy that a heat pump water heater + solar ends up being more efficient than a solar water heater. Especially in a warm environment.