Main Form of Renewable Energy Resources


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Renewable energy is energy which is generated from natural sources i.e. wind, sun, rain etc.what is Renewable energy resources?, How does energy compare to other renewable energy sources?


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Renewable Energy Resources


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.


Renewable Energy Wind Energy. Hydro Energy. Solar Energy. Biomass Energy. Geothermal Energy. Main Form of Renewable Energy


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.


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.


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.


Hydro Power Plant


Solar Energy


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.


Solar lighting. water Heating. Heating,Cooling Ventilation Electrical generation. Application of Solar Energy


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.. Biomass Energy


Biomass Sources Agricultural Crops & Residues. Sewage. Municipal Solid Waste. Animals Residues. Industrial Residues. Forestry Cropes & Residues.


Geothermal Energy


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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