Volkswagen has supposedly created a device that generates electricity from the wasted heat created by an internal combustion engine. The device, known as a thermoelectric generator (TEG), relies on the reaction of two different metals as heat passes through, thereby generating electricity. According to VeeDub, its TEG can generate an impressive 600 Watts, which is about 30% of the electrical needs of a Golf Plus and enough to reduce fuel consumption by over 5%. Last year, BMW won awards with a similar system that was able to generate about 200 Watts of power. Via autoblog.com