I live in Portland and I am thinking of doing a gas build. This is a very eco friendly place and I know I will get flack for it. But, maybe someone can answer this for me: What is really more energy efficient? Gas or electric? More specifically, lets say for the sake of argument you get 150 MPG with gasoline. How much electric do you need to equal that distance? From what I understand, electricity though 100% clean and the receptacle, is only 40% efficient to produce. It take a lot of coal, etc to make electricity. Ant thoughts?