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I was required to wire each unit with 150kW panel. The original 1931 service was 240 x 200 Amps which I upgraded to 240 x 800 Amps in 2018.

I posted the best image I could of the original 1931 schematic which has 9 circuits for 5,000 sqft school.

It's the first image in this slide show.

https://www.icloud.com/sharedalbum/#B2dGIcgc2GugpW3

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Interesting. That is like 52 sqm per unit, which is 2.9 kW/sqm — three times higher power density than the solar irradiance on earth surface. If this is used at full power, how are the rooms cooled? (most energy gets converted to heat in typical use-cases)

I’m not completely following your comment but in 1954 they added a 7,000 sqft addition. We are using mini-splits for HVAC.

Almost 100% of the electricity you use indoors will be converted to heat (with few exceptions like charging batteries) that needs to be removed from the room to be able to live there. 150kW is a lot of power.

I get that. The apartments are small studios created by placing an 11' utility wall that is the kitchen on one side and the bathroom on the other. The kitchen side has 13 129 Volt outlets plus 2 220 volt oven and dryer.

I purposely had all those outlets installed as joke to the 150 amps out.

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