Metal Hydride Heat Engine

This simple hydride heat engine prototype starts generating electricity the moment the hydride heat exchangers are dipped into hot and cold water. See it happen in this short video clip:

The hydride heat engine is comprised of solar hot water panels, a fan cooler or radiator, a hydride-based hydrogen compressor and an expander-generator set. After the hydrogen has been fully absorbed and the heat exchanger cooled, hot water from the flat plate solar collectors is circulated through the heat exchangers.

Source: ergenics.com