3 ms·
I wonder how much money might be saved just by installing shutters to reflect the light (and heat) back into the greenhouse instead of letting it pollute everyw
by inetknght 7y ago
I wonder how much money might be saved just by installing shutters to reflect the light (and heat) back into the greenhouse instead of letting it pollute everywhere.
- londons_explore 7y agoLight perception is logarithmic. There might well be 99% of the light hitting the plants leaves, and 1% escaping to the environment, yet that 1% will only appear a bit dimmer than the original light source.
- inetknght 7y agoThat's fine, but I'm still curious about the costs involved.
- ficklepickle 7y agoHere's an article[0] that mentions a containment product. Its a fire-resistant white polyester screen. Some of the challenges include excess heat (HPS emit ~80% as heat) and moisture. I haven't found anything that breaks down the costs. It seems the primary motivation is bylaw compliance. [0] https://gpnmag.com/article/cleaning-light-pollution/ https://gpnmag.com/article/cleaning-light-pollution/