Hey, how many drivers here in Massachusetts are on TOU rates? I'm looking at TOU rates trying to decide if I should switch. The summer on peak rates are really high (over 20 cents, not including supplier charges!), so they can really eat into your savings. I have a rough idea on how much energy my car uses (which is nearly completely off-peak), but I don't have a good idea on how much of the energy my house uses is off peak. I know that just under 75% of the yearly hours are off peak, but what would be a good guess at what % of the energy is off peak? From what I can tell, I'd need roughly 70% of my energy to be off peak in order to make TOU save money.