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Energy system can refer to: 1  Electric power system, for supply, transmission and consumption of electric power. 2  Thermodynamic system, a physics concept for analysis of thermal energy exchange. 3  Bioenergetic systems, metabolic processes for converting energy in living organisms.
Solar energy is defined as energy obtained from the sun's radiation. The two main forms of solar energy include active solar energy and passive solar... Solar energy is defined as energy obtained from the sun's radiation. The two main forms of solar energy include active solar energy and passive solar energy. Active solar energy involves equipment or an action to convert solar energy into a useful form. One example of active solar energy is the use of solar cells to convert energy from the sun into electrical energy that can be used in the home.Passive solar energy does not require any specific action or equipment.