With an increase in energy needs we are largely dependent on oil, coal and gas etc. for the sufficient fulfillment. But we all are overlooking the most essential part here, the climatic change because of the excessive use of such elements. There can never be a denial to the fact that our dependence on the fossil fuel is doing wrong to the environment. Continuous usage of fossil fuels such as coal and petroleum is leading to enhance the concentration of harmful pollutants in our environment. However, renewable energy can be a savior in such a challenging phase for each and every person residing in this environment. But first apprehend the meaning of renewable energy.
What is renewable energy?
Renewable energy can simply be defined as any sort of energy that flows out from the renewable natural resource like rain, wind, sunlight, tides and heat etc. It has been alleged as ‘renewable’ as it never lapse.
Sources of renewable energy
Solar energy is considered to be the standout amongst the most well-known sorts of sustainable energy source is sunlight based power. This sort of energy grows from the sun, which spreads up to the whole planet with the vitality we have to endure. Utilizing solar panels, we can gather energy straightforwardly from daylight and convert it to power that controls our homes. This can also be utilized to extract heated water or charge battery frameworks. Solar energy is beneficial for the environment as well as the economy. Installing solar plants in organizations can help in cutting down the hazardous impact on nature as solar energy does not release any harmful pollution.
Wind power is another sort renewable energy source that we associate with consistently. When one sense and try to feel the breeze or wind, he/she is essentially feeling air shifting to different places due to the jagged or erratic warming of Earth’s surface. We can catch the intensity of wind utilizing monstrous turbines, which tend to create the energy when they turn. This source of renewable energy is also pollution free just like the solar energy as there is no release of any harmful gases or pollutants in the environment around. Wind farms had originated approximately 6% of the electricity in U.S in the year 2107.
Renewable energy can also be produced through moving or stirring water. When water on the move flows speedily through the turbines. The spinning of water tends to originate energy which results in production of electricity. This process generally takes place at immense waterfalls and dams etc. Hydropower is known to be a source of energy that does not give rise to any kind of pollution. It is a non-polluting source of energy. On the other hand the process of generating hydroelectricity tends to have larger impact on environment as compared to other energy sources. Hydropower can easily switch and shift the levels of water.
Earth tends to have an eminent source of energy comprised inside it. Heat enclosed when the planet composed, mixed with heat originated from the radioactive decomposition in rocks underneath crust, giving rise to a massive amount of geothermal heat energy. Geothermal power is quite cost-efficient, environment friendly and capable enough to be used in future but it is also been limited to the places and areas near tectonic plate boundaries.
Renewable Energy Storage
There is an utmost need to be dependent on such sources of renewable energy however, in order to achieve the same there is a hefty requirement to store these energies for the time when nature does not support like when the sun is not shinning or wind stops blowing.
There are numerous methods to store energy:
- Flywheels – It includes the mechanical devices that control the rotational energy to cater immediate electricity.
- Compressed Air Energy Storage – Employing and exercising the compressed air to produce an influential energy reserve.
- Thermal – It is related to the process of acquiring heat and cold to generate energy on demand.
- Pumped Hydro-Power – This type of energy storage works in originating the large-scale reservoirs of energy with water.
Energy storage has become the hot and trending topic in the industry. With an aim to maintain and assert the competent flow of power, the utility handlers need to attempt and execute the steady supply and demand continuously in order to fulfill the peak demand. Storage is now becoming one of the most significant elements of power generation, conveyance, disposal, and consumption management. The efficient and inexpensive storage is the subsequent hindrance that requires to be overcome in order to attain a more effective and higher intrusion of the renewable energy in the grid. In the coming time energy storage systems will surely see advances because various manufacturers are exercising prominently in this field.
While still a small part of our energy mix, geothermal energy is a promising renewable energy source, with massive potential for energy supply. In Iceland, for example, geothermal energy already accounts for 90 percent of home heating needs and 25 percent of electricity needs. However, there are some concerns with geothermal energy, including the cost of constructing a power plant and its relation to surface instability and earthquakes.