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Filipe Martinho
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2024-07-20 08:34:26

Filipe Martinho on Nostr: Solar energy discussion! Someone claimed the following quote for the UK: "£10k ...

Solar energy discussion!

Someone claimed the following quote for the UK:
"£10k install quote for a 7kW PV system with a 10kWh battery (2x5) as well as micro inverters."

This is an unbelievably cheap quote, but someone pointed out in the comments that even then, such a system in the UK will have more than 20 years of payback time, and will barely outperform a 5% fixed income investment instrument.

My analysis: That's mostly due to how little sun they have in the UK. In the southwest US, such a system would pay itself back in ~10 years, and there could be additional savings from battery grid management operations.


Original thread:
https://x.com/FilipeMartinh10/status/1814576074266640830?t=wvd1OZBz-uXKTJ-FFWZEHg&s=19
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