Your Questions About Solar Energy Materials And Solar Cells

James asks…

How to make a cheap, nontoxic solar cell (ok to be inefficient)?

Current high-efficiency solar cells are apparently still bad for the environment (manufacturing) How would you make at home a cheap nontoxic solar cell using common materials? It’s ok if it is not very efficient, but I was wondering if it was possible at all — maybe just to power air conditioner.

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Joseph asks…

How the sun can produce heating directly in solar heating?

and how the sun can prouduce electricty usin solar cells?

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