Energy sources

Topics: Energy, Nuclear power, Coal Pages: 4 (844 words) Published: March 15, 2014
Energy Sources & Energy Transfer
Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). Sources:
Solar Energy
Wind Energy
Biomass Energy
Geothermal Energy
Ocean Energy
A non-renewable resource is a natural resource which cannot be produced, grown, generated, or used on a scale which can sustain its consumption rate, once depleted there is no more available for future needs. Sources:

Fossil Fuels:
Oil and gas
Nuclear Fuel
Coal-Fired Power Stations

Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam. The steam, at tremendous pressure, flows into a turbine, which spins a generator to produce electricity. The steam is cooled, condensed back into water, and returned to the boiler to start the process over. As of 2009 the largest coal-fired power station is Kendal Power Station, South Africa. The world's most energy-efficient coal-fired power plant is the Avedøre Power Station in Denmark. One of world's least energy-efficient coal-fired power plants is the Hazelwood Power Station in Victoria, Australia.

Advantages & Disadvantages of Renewable Energy Power Plants
The resources used are renewable
Less maintenance required
More environmental friendly
Difficult to build
Difficult to produce large amount of electricity
Advantages & Disadvantages of Non-Renewable Energy Power Plants Advantages:
Cheaper than renewable energy power plants
Easier to produce large amount of electricity
It is a relatively cheap source of energy
The resources used are non-renewable
Environmental friendly

Nuclear Power Plant

A nuclear power plant (NPP) is a thermal power station in which the heat source is one or more nuclear reactors. As in a conventional thermal power station the heat is used to generate steam which drives...
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