Untitled Document Energy Quickies .
All energy becomes heat radiated into the environment.
Energy costs include extracting, refining, transporting, converting and using. Fossil Fuels Petroleum accounts for half of the energy consumed in Florida. Electricity Electric-generating plants take three units of fuel and produce two units of heat and one unit of electricity. Electricity is usually measured in watts and time. The average Florida household uses 1000 kWh each month.