Visit a website that has electrical technicians who can perform energy capacity checks. This is one of the ways to determine an energy bill. It is also a way to inspect a power array to determine how much electricity it can deliver. It is not enough just to bill by the kilowatt-hour for some applications. Instead, some companies charge some customers just to have a certain amount of power available.
There are rules around billing and safety. Know who the technicians are who can inspect a business and can properly set the meter. There should be a certain capacity available for a facility and a certain capacity available at a relay station. The power plant guarantees a certain capacity, and distributed contributors are also expected to deliver their promised capacity. A professional who can inspect meters and current gets the job done.