Classification of Energy

Classification of Energy

Classification of Energy
• Energy is broadly classified into:
•Conventional energy: is in practice for long duration of time and well established technology is available to tap and use them. e.g. Coal, oil, natural gas, hydro power, nuclear power etc.
•Non-conventional energy: source can be used with advantage for power generation as well as other applications in a large number of locations and situations. These energy sources cannot be easily stored and used conveniently. e.g. Solar, wind, tidal and geothermal etc.

Classification of Energy • Based upon nature, energy sources are
classified as
oRenewable energy sources are inexhaustible and are renewed by nature itself. Such as;
•Solar Energy
Wind Power Wave and Tidal Power oGeothermal oBiomass Hydropower oNon-renewable energy sources are exhaustible within a definite period of time depending upon its usage, such as oOil oCoal oNatural Gas oNuclear Energy
Solar energy
• Solar energy comes to Earth from the sun in two forms heat and light.
• The surface of the earth receives about 1014 kW from sun (five orders of magnitude greater than that currently being consumed from all resources).

Solar Energy
Solar Energy Advantages
•Renewable source of energy
•Pollution free
•After the capital cost, the cost of power generation is quite low
•Wide range of applications, powering street lights to satellites

Solar Energy
Solar Energy disadvantages
•Capital cost is very high
•Large area of land is required
•Large number of solar panels are required
•Affected by seasons.