Apparently not as much as it used to! “The Empire State building is currently undergoing a $550 million renovation, with $120 million to be utilized in an effort to transform the building into a more energy efficient and eco-friendly structure.”
The second link is super cool!
From the same source I was able to find a powerpoint on the green renovation project — I skimmed through it and eventually found your numbers!
Here’s the link:
The data is on page 42.
Their numbers say that the current peak demand for the building is 10 MW, and the future goal is to get that down to about 6.2 MV. Remember, that’s peak — so the average use is probably less, but during the day (when all the lights are on, the electronics drawing a current, things in use, etc.) they probably draw more than 9 MW of energy… to put that into perspective, some of the most productive wind farms produce only 5 MW of energy — so it would take at least two colossal wind mill style generators (in consistently high winds, which don’t necessarily exist in NYC [at least not on a regular basis]) to power the Empire State Building!
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