How long is the Return on Investment (ROI) if I install a PHEV upgrade?
A long time. Even though electricity for PHEVs costs less than $1.00 per gallon equivalent, it will still take years to save enough money on gasoline to pay for your installation. However, you will be helping the nation get off of foreign oil, reduce your Co2 (global warming) emissions, and be setting an example for your friends, children, grandchildren etc.
