Similar to 再生可能エネルギー

Geothermal heat pump

Energy conservation

RETScreen

Cogeneration

Setsuden

Fuel economy in automobiles

Fuel cell

Beta-alumina solid electrolyte

Trigeneration

Waste minimisation

Energy (society)

Corporate average fuel economy

Worldwide Harmonised Light Vehicles Test Procedure

Alkali-metal thermal to electric converter

Alcohol fuel

Energy conversion efficiency

Energy Star

Environmental technology