Hi there! I'm in the market for a plug-in hybrid. We don't have many charging stations in our area so I'd mostly be charging at home. I'm specifically looking at a Honda Clarity. Is there a way to determine what it would cost to charge the Clarity at home vs if I had to fill a car with the equivalent amount of gas? And do home chargers use more/less electricity depending on if you use a 120 vs 240 charger at home? Thanks!