regenerative energy systems

Much faster, lighter and more powerful than ever before, the Gen3 Formula E racer also takes regenerative braking to the next level. Unveiled today in Monaco, it runs a dual-motor setup that captures so much stopping power it won't need rear brakes.

In an effort to make the London Underground greener and cheaper, Transport for London carried out a five-week trial of a regenerative braking system billed as a "world first" that could slice 5 percent off London Underground's energy bill and save up to £6 million per year.​

Having been available for just over a year now, Tesla’s Model S has received its fair share of acclaim, and its fair share of criticism. So what’s it like to drive this 416 hp all-electric, and how does it compare to other premium sedans? Gizmag went to Palo Alto to find out first hand.

Earlier this year Volkswagen announced production of its two-door 261 mpg mileage buster the XL1. Today at the Tokyo Motor Show the company brought another hyper-miler to the stage by debuting its Twin Up! hybrid, a 4-door inner-city runabout capable of 214 mpg.

Although Land Rover's hefty Defender may not seem like the most logical candidate for an electric makeover, the first Electric Defender began its real world tests this past month in Cornwall, England.

The Thrustcycle SRT is a three-wheeled vehicle that incorporates a gyro/flywheel system to maintain its balance, and harvest power from braking.

A student has added a flywheel to a bicycle for storing kinetic power that is usually wasted in braking.

This Waste Heat Engine (WHE) developed by Cyclone Power Technologies operates at temperatures as low as 225F (107 C).

We reported recently on several new methods of regeneration for hybrid vehicles. These included regenerative shocks based on electric motors and a hydraulic drive train and now students at MIT have d