Why does commercial electricity cost more than residential?

My husbands boss pulled some strings with a friend who owns a NICE commercial building to let me use an empty apartment as a studio until they can find a renter. Was very excited, Still am, but after looking up the cost of electricity, WOW!! It's much higher than residential! I didn't know that there was... show more My husbands boss pulled some strings with a friend who owns a NICE commercial building to let me use an empty apartment as a studio until they can find a renter.
Was very excited, Still am, but after looking up the cost of electricity, WOW!! It's much higher than residential!
I didn't know that there was a cost difference at all until a few days ago!
The building is less than 3 miles from our house and the electricity costs nearly 6x as much!

Why is that?
Update: Way to encourage small business and job growth :-P
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