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For your point 2. isn't there a company making solar cell arrays in the form of a metal roof panel?

A quick search shows: Forward Solar Roofing, a San Francisco, USA company (but they seem to have vanished?)

Another company with a similar approach (which is not Tesla) is: https://www.suntegrasolar.com/




My concern with these systems is what happens if the company goes out of business and you need to replace a proprietary shaped panel?


The Forward Solar Roofing company had panels which were interchangeable w/ existing metal panels, so could have been replaced (albeit at a loss of capacity).

Agree that's a concern for the other products in this space.




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