What is a daily demand charge? A demand charge is a utility fee based on the maximum amount of energy a customer uses during a short period of time within a billing cycle. Nevada Power, a subsidiary company of NV Energy, is proposing to add a mandatory daily demand charge for its residential customers. Under this plan, your electricity meter would be measured on a 15-minute cycle each day, and your bill will be based on the highest 15-minute period energy use during that day. For example,...