US Electricity Generation Fuel Mix Profile Options: The direct use of natural gas at the point-of-use (home or business) can displace the use of electricity, which is generated using a mix of generation fuels. Users of this tool have the option of selecting "eGRID US Average All Sources 2007" to compare the greenhouse gas (GHG) impact of displacing electricity generated using the actual mix of all fuel-types. Or users may select "eGRID US Fossil 2007" to compare the greenhouse gas (GHG) impact of displacing only electricity generated using a mix of fossil fuels.
An argument can be made that the use of energy sources such as natural gas at the point-of-use only displaces electricity generated by fossil fuels. This theory concludes that any reduction in the use of electricity caused by displacement would only impact fossil-fuel generated power as non-fossil fuels (wind, solar, nuclear and hydro) would be the last sources removed from the generation mix when electricity use is displaced by the direct use of natural gas.