Comment on A film that can cool buildings without the use of refrigerantsparentComments−awqrre9yisn't air temperature control the largest energy expense in most countries' homes?−Baeocystin9yYes. Although IIRC it is heating, not cooling, that consumes the lion's share. But the general point stands.−vanderZwan9yIn that sense storing heat underground in summer and pumping it up in winter might be a better option.−tajen9yI'd be curious about France for example, since air conditioning isn't as widespread as in Germany, Thailand or USA.
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isn't air temperature control the largest energy expense in most countries' homes?
Yes. Although IIRC it is heating, not cooling, that consumes the lion's share. But the general point stands.
In that sense storing heat underground in summer and pumping it up in winter might be a better option.
I'd be curious about France for example, since air conditioning isn't as widespread as in Germany, Thailand or USA.