According to the United States Energy Information Administration's website, as of 2012, the average American home used 903 kilowatt hours of electricity per month. However, power consumption varies dramatically during the day and across the United States, with Louisiana homes averaging the highest consumption and Maine homes averaging the lowest.
Power plants have to be able to cope with changing power demands. Home power consumption is highest in the evening after people come home from work and during the weekend. However, energy usage goes beyond electrical energy used; many homes rely on gas and oil heating, which isn't measured by electrical companies. Because of this, total energy usage is higher in northern regions than statistical measurements regarding electricity typically indicate.