Similar to エネルギー効率

Thermal efficiency

Fuel economy in automobiles

Electric energy consumption

Standby power

Worldwide Harmonised Light Vehicles Test Procedure

Alkali-metal thermal to electric converter

Renewable energy

District heating

Geothermal heat pump

Fuel cell

Beta-alumina solid electrolyte

Electromechanical coupling coefficient

1200 (number)

Energy conservation

80 Plus

Blackle

Corporate average fuel economy

Energy-Efficient Ethernet

Green500

SpeedStep

RETScreen

Start-stop system