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Why do skyscrapers leave the lights on at night when no one is around?

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Originally posted by: Shlong
Originally posted by: MmmSkyscraper
So they spend $10.95m a year on lighting a building so people can go "ooooh" and "aaaah" 😕

Well the reasoning was the lighting was what made the building famous. People liked it & the tenants in the building pay an even more premium because they're living in such a famous building. So they thought the money spent on the lighting they'll get a bigger return then what they would've with just regular advertising.

Nice, so they get the tenants to pay for it 😀

/me wants a billion dollar building 🙁
 
actually, the heating and cooling systems of many buildings factor in heat gain from lighting and electrical equipment. Often, large buildings will have to run the AC in winter to cool the building. The heat gain also can reduce heating costs.

 
Originally posted by: MikeyIs4Dcats
actually, the heating and cooling systems of many buildings factor in heat gain from lighting and electrical equipment. Often, large buildings will have to run the AC in winter to cool the building. The heat gain also can reduce heating costs.

They would just bring in cool outside air.
 
Originally posted by: CorporateRecreation
sever
it?s the simple things that are so hard to grasp
can?t find myself in all these days that pass
but i can feel it when it shines
nevermind the way they shine
nevermind
nevermind

 
There is a lot of excess power at night that if it's not used it just goes to waste heat anyway (you can't turn a power plant down, at least the coal ones can't). The question is if the light pollution hurts anything and in most cities there is enough light pollution anyway that the little extra doesn't hurt anything.
 
Originally posted by: mchammer
Originally posted by: MikeyIs4Dcats
actually, the heating and cooling systems of many buildings factor in heat gain from lighting and electrical equipment. Often, large buildings will have to run the AC in winter to cool the building. The heat gain also can reduce heating costs.

They would just bring in cool outside air.

Buddy,

I've overseen projects where the AC is designed to run in the winter to counteract heat generated by occupants and building loads. You can't just pump in outside air, as it can be too cold.
 
Originally posted by: rahvin
There is a lot of excess power at night that if it's not used it just goes to waste heat anyway (you can't turn a power plant down, at least the coal ones can't). The question is if the light pollution hurts anything and in most cities there is enough light pollution anyway that the little extra doesn't hurt anything.

Makes sense. I guess since you can't store all that power in batteries, you may as well use it for heating.

But, it's in the middle of summer. Fluorescent lights don't make that much heat, so what's the point?
 
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