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‘If 1.5m Germans have them there must be something in it’: how balcony solar is taking off
(www.theguardian.com)
this post was submitted on 11 Feb 2025
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Less efficient than not having them?
Wrong question. The right question is: is the solar panel able to be CO2 neutral (at least) or CO2 negative. We don't get anything out of it if producing the solar panel costs more CO2 emissions than it saves by producing electricity.
Before you ask: I don't know the answer. I was looking into this thread in hope to find it.
Most people don't care about being CO2 neutral. The real question is what is the ROI? Will the panel save that person money. If it takes 50 years to pay for itself, I'd say that's bad. 10 years is more standard. 5 years I say it's a no brainer. Though I suppose you can also argue value for utility, if that is giving her the ability to power something off grid that would be worth something.
I hung a solar panel vertically on my fence one time. It was facing west rather than south, but I was only getting about 3-4 watts on my 100 watt panel under the best conditions.
Depends, is an imaginary angle comparable to a 45 degree angle?