The vast majority of energy-intensive businesses have a power subscription with their electric utility as a fixed fee.
The purpose of power subscriptions is that you should not pay for more power than you actually use and at the same time act as a financial incentive to keep power consumption down.
The price of the subscription is set by the maximum power you as a customer need access to during a certain occasion.
That is, the lower peak power you need to draw from the grid during your maximum hour to run your business, the less you pay for your subscription per month.
