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Examples of Renewable Resources

April 26, 2013

examples of renewable resources

A natural resource becomes a renewable resource when it is replaced by natural processes at a rate which is faster than its consumption rate by humans. Solar radiation, tides, winds and hydroelectricity are the sources which are of long-term availability. Renewable resources may include mean commodities like wood, paper, and leather, if their harvesting is performed in a sustainable manner.

Introduction

Some natural renewable resources such as geothermal power, fresh water, timber, and biomass must be used with care to avoid exceeding the capacity to replenish them. A life cycle provides a systematic means of calculating renewability.

Renewable Energy

Examples are:

  • Biofuel
  • Biomass
  • Geothermal
  • Hydroelectricity
  • Solar energy
  • Tidal power
  • Wave power
  • Wind power

Solar energy:

Solar energy is the energy which is derived directly from the Sun. With nuclear energy, it is also the most abundant source of energy. The fastest growing alternative energy is the photovoltaic cell, which converts solar energy directly into electricity. The Sun annually gives more than 10,000 times energy that humans currently use.

Wind power:

Wind power comes from uneven heating of the Earth’s surface from the Sun and the warm core. Wind power is generated in the form of electricity by converting the rotation of turbine blades into electrical current with the help of an electrical generator.

Hydroelectricity:

Hydropower comes from the movement of water in rivers and oceans, can be used to generate electricity by using turbines, or can be used mechanically for doing useful work.

Geothermal:

Geothermal power harnesses the flow of heat from the ground. The energy which is available from natural decay of radioactive elements in the Earth’s crust and is approximately equal to the incoming solar energy.

Biofuel:

Alcohol which is derived from corn, sugar cane, switch grass, etc. may be referred as a renewable source of energy. Oils from plants and seeds are used as a substitute for non-renewable diesel. Methane is normally considered as a renewable source of energy.

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