Energy costs are a big expense for any business.
The grocery store I used to work at spent $100k-$120k a year on electricity.
The owner was always looking for things to cut that bill down.
I have to say the largest power bill I have ever heard of was from a RE investment group I was talking to. They owned a large mall that was all electric heat!
I don't know who thought that was a good idea. The bill was $1m a month. They sold the property to some other sucker, it really needs to be converted to gas.