The law of conservation of energy states that energy cannot be created no destroyed, but it can be converted from one form to other. Electrical technology isn't also against it. Here are some examples of energy conservation which belongs to electrical technology.
- Electromechanical energy conservation, Faraday's invention produced electrical energy from mechanical energy of rotation. Mechanical energy is derived from the thermal energy by a turbine. In turn, the thermal energy is obtained from chemical energy by burning fossil fuel or nuclear fuel. Sometimes the conversion is from hydraulic energy by hydro-electric generation.
- Electrochemical energy conversion as in batteries.
- Magnetohydrodynamics(MHD) energy conversion.
- Photovoltaic energy conversion as in the solar cell.
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