Have you ever received your monthly electric bill ... on for 10 hours, it would consume 1 kWh of electricity (100 watts x 10 hours = 1,000 watt-hours, or 1 kWh). How do you calculate electricity ...

Some companies will also let you pay when you receive a bill, but will charge ... charge different rates for electricity used at different times of day. For example, you pay a more expensive rate for ...