Green energy Definition
Green energy comes from natural sources such as sunlight, wind, rain, tides, plants, algae and geothermal. These energies are renewable, which means they naturally complement. By contrast, fossil fuels are one that takes millions of years to develop and will continue to be used to reduce limited resources. Renewable energy also has a much smaller impact on climate change than fossil fuels, where pollutants such as greenhouse gases are by-products. Access to fossil fuels is usually requiredor mining.or drilling in depth, often in ecologically sensitive areas. Green energy, however, the use of energy resources areReady to goAll over the world, including in rural and remote areas where electricity is not used in other ways. Advances in renewable energy technologies have lowered the cost of solar panels, wind turbines and green other energies that will generate power in the hands of the people, not those of the oil, gas, coal and utility companies. Green energy can be used in all major areas, including electricity, water and heating fuel for motor vehicles to replace fossil fuels.
Types of green energy
Here are six common types of green energy:
1、Solar power - The most common type of renewable energy, solar power is the use of photovoltaic cells, which absorb the sun generated by the typical, and convert it into electricity.
Solar energy can also be used for building heating and water, providing natural lighting and cooking. Solar technology has become cheap enough to power everything from a small handheld gadget across the block.
2、Wind power - Air currents on the Earth's surface can be used to push turbines, with stronger winds generating more energy.
High altitude sites and historical areas are just offshore and tend to provide capture The best conditions for strong winds. According to 2009 Years of research in the rural areas of land-based,2.5MW of The network of wind turbines in its rated capacity 20% running can provide the energy of the current world-wide consumption of40Times.
3、Hydropower - Also known as hydroelectric power , which is produced by water circulating on the earth, including evaporation, rainfall, tides and the power to run water through a dam.
Hydropower relies on high levels of precipitation to produce significant energy.
4、Geothermal energy - Just beneath the heat of the Earth's crust, this radioactive decay from the initial formation of planets and minerals comes from a large number of.
Geothermal energy in the form of hot springs has been used in humans for thousands of of years of bathing, and now it is being used to generate electricity. In North America alone, where the underground stores enough energy to produce10Times as much power as coal at present.
5、Biomass - Natural materials in life such as: wood scraps, sawdust and combustible agricultural waste can be converted to much less energy-emitting greenhouse gas emissions than oil
Source of the base fuel.
This is because these materials are called biomass and contain energy stored from the sun.
6、Biofuels - Not only is burning biomass generating energy, sometimes these renewable organic materials are converted into fuel.
Notable examples include ethanol and biodiesel. Biofuels provide the world's fuel 2.7％，2010 Year for road transport, and must meet potential world needs 25% above, to 2050 Years have been used as a transport fuel.
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