Your electricity bill cost depends on your location, retailer and plan, daily usage, household size, appliance efficiency, and whether you have solar. Bills may also include supply charges, time-of-use rates and other fees, so comparing only the total can be misleading. Check your bill for kilowatt-hours used and compare this with earlier bills or the average for similar periods. Your retailer can explain the charges and available plans, while the Energy Made Easy website can help compare offers in participating areas.