High Power Energy Harvesting (HPEH) is a term beginning to be used for creation of electricity where it is needed using ambient "free" energy. That zero-pollution, high-energy conversion typically captures light (photovoltaics), heat difference (thermoelectrics and heat pumps) and movement (electrodynamics).

Thermoelectric energy harvesting is no longer the Cinderella of energy harvesting - a subject previously dominated by photovoltaics and electrodynamics such as the bicycle dynamo and the electric vehicle's regenerative braking.