Not all energy production is equal. The production of energy has effect on environment. Some energy sources has no harmful effect, some energy sources has very less effect and some energy sources has huge effect on environment and cause huge damage to the nature. Those sources that do not harm environment and nature is green energy sources.
Green energy
Green energy is defined as the energy that can be prepared from a source and using a method that cause no any harm to the nature. It is clean, sustainable and renewable energy. The production of the green energy does not release any toxic green house gases into the atmosphere meaning it no harmful impact to the environment.
Benefits of Green Energy
Some of the benefits of green energy has listed below.
- They are clean and do no harm nature
- Good health condition of the workers
- Nearby air and water resources remains clean and healthy
- Job creation
Types of Green Energy
There are many types of green energy coming from a wide variety of the sources and natural resources such as water, wind, sun e.t.c. which provide the energy that can be turned into electricity. Some of the sources of green energy has been mentioned below.
Solar Energy
Solar energy is a clean source of energy which comes directly from the sun. Generally stars can produce huge amount of energy via nuclear fusion. This energy then reaches to the earth by solar radiation which can be collected and converted into the usable electricity.
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Solar panels are the most common form of solar energy harvesting and made from photovoltaic cells. When the light from the sun hits these cells they create an electrical current through the photoelectric effect. The current is then passed through an inverter to turn it into an alternating current then it can be used to power your home or supplied to the grid.
Solar panels use silicon sheets with photovoltaic cells to convert sunlight into electricity. Solar power is a relatively accessible resource and can harness solar power either industrially or individually by installing solar panels on buildings and homes.
wind power
Wind energy is actually another energy source indirectly powered by the sun because winds are caused by the uneven heating of air and vapor present in the atmosphere. This unevenness is affected by the topology of the earth, its spin and revolution in its orbit around the sun.
Three blade wind turbines are most commonly associated with wind power. Wind turns the blades of the turbine which turns an internal shaft and then the shaft rotates the rotor of a generator and creates electricity. Although wind may seem powerful, expansive wind farms are required in order to generate enough electricity to make an impact.
Wind turbines generate kinetic energy that is used to create electricity. The harnessing of wind power doesn't require much human labor and known as one of the most environmental friendly resources.
Hydro-electric Energy
Hydroelectric energy is produced by using the kinetic energy of flowing water in the steams and rivers. This is achieved by flowing water through a narrow path and then increasing its energy per square meter. This is commonly achieved by storing water in a reservoir or dam and then selectively purging the water by opening an intake.
The gravitational potential energy stored by holding water higher level in the dam forces the water through the intake at incredibly high speed. When released, the flow of water spins the turbine which rotates the rotor of a generator creating electricity. Due to high efficiency, hydroelectricity is one of the most popular forms of green energy.
Bio-gas
Bio-gas is not only a green energy source but that it makes use of our waste products. Bio-gas is produced as a by-product when the organic matter such as sewage, food, agricultural waste, and manure decomposes.
These materials are stored in containers without oxygen causing them to ferment and produce methane and carbon dioxide as well as other gases. The produced methane gas can be sold on and used to generate heat, produce electricity and fuel vehicles. At the same time, the waste placed in a bio-gas digester becomes nutrient-rich fertilizer, perfect for farms and even home use.
Bio-mass
Bio-mass is a source of green energy that comes from plants and animals and both contain energy stored from the sun often in the form of sugar or cellulose. In fact, when it comes to converting biomass into usable energy, much of this material is made into bio-gas as well as liquid bio-fuels including bio-ethanol and bio-diesel. Other solid materials such as wood can be burned by themselves in order to heat buildings as well as to produce electricity. Wheat, sugar beet, sugar cane and maize are often fermented to produce bio-ethanol.
Geo-thermal
The heat held within the fluids and rocks beneath the Earth’s crust can create energy. To harness geothermal energy from the steam and hot water, workers dig mile-deep wells into underground reservoirs. They use this steam and hot water to power turbines connected to generators to generate electricity.
Conclusion
Hope, you have clearly understand about the green energy, its sources, benefits and types. Make sure to leave your opinion and suggestion about this post in the comment section below.