An electric heater that consumes 5000 J of electrical energy and produces 4000 J of heat, 700 J of sound and 300 J of light energy., A TV takes in 1000 J of electrical energy and outputs 550 J of light, 200 J of sound and 250 J of heat., A wind turbine converts 300 kJ of kinetic energy from wind into 200 kJ of electrical energy and 100 J heat., A solar panel system converts 800 kJ of solar energy into 500 kJ of electrical energy, 200 kJ of heat and 100 kJ of sound., A coal-fired power plant converts 5000 kJ of chemical energy from coal into 2000 kJ of electrical energy, 1000 kJ of sound and 2000 kJ of heat., A gasoline engine consumes 1000 kJ of chemical energy from fuel and produces 500 kJ of heat, 200 kJ of motion energy, 300 kJ of sound..

Energy Efficiency

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