Not to be smart, and no I'm not a tree hugger but I was watching a news clip about how pessimistic people say we will be out of oil by 2020 and optimistic people say 2030, whats in store for our mowers? I started thinking that when I drove forklift I could run almost 10 hrs on a charge, why could'nt a big mower company (exmark, hustler, etc) make an electric mower? Mow 10 hrs then plug it in for the night? There would be allot less maint. 5 electric motors and resistors and some other stuff. ! motor left wheel, one right, and one for each blade, you could even have the blades on a rheostat so you could change tip speed. not to mention torque. and best part no noise??? see what I think about after a pint of morgan.