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AC isn't a problem if the energy feeding it is carbon neutral. With a strong mix of renewables and nuclear this is achievable, but instead we continue to burn c
by sojournerc 2y ago
AC isn't a problem if the energy feeding it is carbon neutral. With a strong mix of renewables and nuclear this is achievable, but instead we continue to burn coal and natural gas to provide base load.
- KingOfCoders 2y agoVisited NYC several times. Metro was unbearable in summer because trains heated up outside and blasted the warm air into tunnels and stations through AC.
- sojournerc 2y agoAC doesn't really create heat though, aside from minor amounts from the compressor/fan motors, it merely moves it from inside to outside, or into the metro stations as you mention.
- KingOfCoders 2y agoYes, AC moves heat from inside homes outside into the city.
- sojournerc 2y agoMy point is that it doesn't create heat, thus does not contribute to climate change on its own. Only the energy source that powers it potentially does.
- BenjiWiebe 2y agoSince ACs are pretty far from 100% efficient, they turn electricity into heat. There's also heat generated along with the electricity because generation isn't perfect either.
- deleted 2y ago[deleted]
- BobbyTables2 2y agoThe HVAC fan alone in a surban house can draw 1KW. That’s pretty much all heat. The AC cools the house at the cost of many more KW. The house gets cooler but this is all heat from the electrical usage.
- icehawk 2y agoTo put that into perspective: The AC cools the house using about 3-4kW, total. The roof on the house (assuming 29N because the article is about Houston, so between 10AM and 2PM, that's a Solar irradiance of 1kW/m^2) is receiving 157.9kW of sunlight, and then absorbing about 85% of that.