heating fuels.  The balance of petroleum is primarily consumed as Residential and Commercial sectors' heating fuels.  Analysis indicates the Transportation petroleum consumption could be feasibly reduced by about 63% with new 'electric vehicles' (EV).  This would include replacing 80% of light duty vehicles and 50% medium duty commercial vehicles with EV's.  Aircraft, marine transport and the Military would continue to use petroleum at current levels. The Industrial, Residential and Commercial sectors could feasible replace significant amounts of petroleum heating fuels with heat pumps and other electric power technologies.  Based on these changes, current U.S. petroleum consumption (MBD = million barrels per day) could be reduced as follows: The 9.8 MBD reduction in petroleum consumption would eliminate all imports and a significant amount of existing domestic production.  Further petroleum reductions should not be planned since this action could negatively impact the mobility of most Residents, and the Industrial sector's outputs.  Estimated new nuclear/wind power capacity required to replace 52% of U.S. petroleum consumption (by EV's and heat pumps) is 1570 GWH/yr. C. Reduced Natural Gas -- Industrial/Electric/Residential sectors consume 33%/31%/19% respectively of total natural gas.  Natural gas is used primarily for heating and turbine/motor fuels.  Some of these heating/motor fuels can be replaced by a combination of heat pumps and electric motors.  All Residential gas appliances could also be replaced by electric technologies.  Due to the large increase in variable, renewable wind power and the need to maintain power grids reliabilities, analysis indicates no significant reduction of Electric sector natural gas