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Scientists are developing high-performance energy storage units, a prerequisite for effective hybrid motors.

REGENERATIVE BRAKING is widely practised, but there have to be other trains around to absorb the surplus power being fed back into the catenary or third rail. Processing the output from trains and pushing it back into the local grid is possible with an AC power supply, but very expensive with DC traction. Too often, power produced by traction motors in braking mode ends up heating resistor banks. The elegant alternative is to store the braking energy on the train. This not only avoids the electrical complications of regenerating through the traction power supply network. It reduces the rated power requirement of that network by lopping demand peaks during acceleration, saves energy by reducing losses in the catenary or conductor rail, and by limiting voltage drop it allows substations to be further apart. NiMH batteries have the necessary energy storage density in terms of kWh/kg, and are slightly more expensive, but their life in terms of charge/discharge cycles in no way matches the LRV requirement for 2million cycles over 10 years. Flywheels have been tried but never caught on for several reasons.

Let's not even begin to discuss the ideological implications of this statement.

The lithium ion car battery created by Tesla Motors has passed a battery of certification tests that effectively remove another hurdle in the path toward selling products. Because they can burst into flames, lithium ion batteries are classified as dangerous goods, according to Erik Toomre, Director of Manufacturing Programs. "Before we ship it to the public, we have to demonstrate that it is safe," he said.

The lithium ion car battery created by Tesla Motors has passed a battery of certification tests that effectively remove another hurdle in the path toward selling products. Because they can burst into flames, lithium ion batteries are classified as dangerous goods, according to Erik Toomre, Director of Manufacturing Programs. "Before we ship it to the public, we have to demonstrate that it is safe," he said.

un doc video sur General motors ...: EV1 la voiture electrique 1996 ... pourquoi a-t-elle été retirée du marché ???

Integrating solar power into other components of a typical home comfort system -- including indoor motors, compressors, indoor air quality products, and thermostats -- is currently being evaluated. "The Lennox SunSource(TM) is another step towards the acceptance of single-point solar technology applications," said Doug Young. "This unique application specifically targets reducing peak demand, while improving energy efficiency and maintaining comfort. Together with the electric industry and the support of our outstanding North American dealer network, we can begin to make a significant positive change in 2009."

Researchers from Georgia Institute of Technology developed a new type of small-scale electric power generator, based on stretching and releasing zinc oxide wires encapsulated in a flexible plastic with two ends bonded.