jbde

Postal Service Set to Lead the Way in Deploying Electric Fleet

Stupid government again - CNG is certainly the right choice for such flleet vehicles with a home-base - even better: you spin-up an inertial flywheel with the CNG motor and use the more effeciient stored energy for all that stop-and-go.

Li-ion Batteries: A Speculative Field of Dreams

Whatever happend to storing energy kenetically in flywheels? Rev 'em up when plugged in and drive away by converting to electricity and driving motors on each wheel. Also motors could harvest breaking energy in a small bank of batteries that would assist in accelerating from a dead stop.

Alternative Energy Storage Needs to Take Baby Steps Before It Can Run

You need to add the WEIGHT, VOLUME and RECHARGE-TIME of the batterires to your table.

If new technologies reduce these, they are a factor in how large/heavy the vehicle is, thus an effect on the amount of energy to move it. Of course recharge time is a major concern and tus can rule out a cheaper alternative as impractical.

Is this the real reasons for new technologies? Or can they be dispelled by showing the cheaper alternatives per your table are in fact cheaper dispite weight, volume and recharge-time?