Main Form of Renewable Energy Resources

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Renewable Energy Resources
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Introduction

• Renewable energy is generally defined as energy
  that comes from resources which are naturally
  replenished on a human timescale such as
  sunlight, wind, rain, tides, waves, and
  geothermal heat.
• Renewable energy resources exist over wide
  geographical areas, in contrast to other energy
  sources, which are concentrated in a limited
  number of countries. Rapid deployment of
  renewable energy and energy efficiency is
  resulting in significant energy security, climate
  change mitigation, and economic benefits
• Renewable energy resources and significant
  opportunities for energy efficiency exist over
  wide geographical areas, in contrast to other
  energy sources, which are concentrated in a
  limited number of countries.

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Renewable Energy
Main Form of Renewable Energy

• Wind Energy.
• Hydro Energy.
• Solar Energy.
• Biomass Energy.
• Geothermal Energy.

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Wind Energy
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Wind Energy

• Wind is caused by huge convection currents in the
  Earth's atmosphere, driven by heat energy from
  the Sun. This means as long as the sun shines,
  there will be wind.
• wind energy is believed to be five times total
  current global energy production, or 40 times
  current electricity demand.
• This could require large amounts of land to be
  used for wind turbines, particularly in areas of
  higher wind resources. Offshore resources
  experience wind speeds of 90 greater than that
  of land.

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Hydro Energy
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Hydro Energy

• The most common type of hydroelectric power plant
  uses a dam on a river to store water in a
  reservoir.
• Water released from the reservoir flows through a
  turbine, spinning it, which in turn activates a
  generator to produce electricity. But
  hydroelectric power doesn't necessarily require a
  large dam.
• Hydroelectric energy is a term usually reserved
  for large-scale hydroelectric dams.
• This includes marine current power, tidal power
  and ocean thermal energy conversion.

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What is Dam

• Dams are massive barriers built across rivers and
  streams to confine and utilize the flow of water
  for human purposes such as irrigation and
  generation of hydroelectricity.
• It is a medium to store water at a height.
• Most of hydropower plant rely on dam.

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Hydro Power Plant
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Solar Energy
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Solar Energy

• Solar energy is radiant light and heat from the
  sun harnessed using a range of ever-evolving
  technologies such as solar heating,
  photovoltaics, solar thermal energy, solar
  architecture and artificial photosynthesis.
• The large magnitude of solar energy available
  makes it a highly appealing source of
  electricity.
• Solar radiation along with secondary solar
  resources such as wind and wave power,
  hydroelectricity and biomass account for most of
  the available renewable energy on Earth.
• Passive solar techniques include orienting a
  building to the Sun, selecting materials with
  favorable thermal mass or light dispersing
  properties, and designing spaces that naturally
  circulate air.

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Application of Solar Energy

• Solar lighting.
• water Heating.
• Heating,Cooling Ventilation
• Electrical generation.

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Biomass Energy
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Biomass Energy

• Biomass is a renewable energy resource derived
  from the carbonaceous waste of various human and
  natural activities. It is derived from numerous
  sources, including the by-products from the
  timber industry, agricultural crops, raw material
  from the forest, major parts of household waste
  and wood.
• Biomass is biological material derived from
  living, or recently living organisms.
• In the context of biomass for energy this is
  often used to mean plant based material, but
  biomass can equally apply to both animal and
  vegetable derived material.
• To many people, the most familiar forms of
  renewable energy are the wind and the sun. But
  biomass (plant material and animal waste) is the
  oldest source of renewable energy, used since our
  ancestors learned the secret of fire..

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Biomass Sources

• Agricultural Crops Residues.
• Sewage.
• Municipal Solid Waste.
• Animals Residues.
• Industrial Residues.
• Forestry Cropes Residues.

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Geothermal Energy
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Geothermal Energy

• Geothermal energy is the heat from the Earth.
  It's clean and sustainable.
• Resources of geothermal energy range from the
  shallow ground to hot water and hot rock found a
  few miles beneath the Earth's surface, and down
  even deeper to the extremely high temperatures of
  molten rock called magma.
• There is also the potential to generate
  geothermal energy from hot dry rocks.
• It is the thermal energy contained in the rock
  and fluid (that fills the fractures and pores
  within the rock) in the earth's crust.

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