Think about what you are trying to do. You are trying to monetize your access to free electricity.
Why not buy / rent adjacent building and feed the free power into the meter of the 2nd unit and collect money from your power agency? Basically setup something akin to a solar grid tie system, except you dont need the solar panels

Or why not start a business that is very sensitive to power pricing, like metal or glass recycling. Or maybe gas cylinder filling (hydrogen, co2, etc)... once you buy a compressor then the majority of the business expenses are covered by the free power.