The Earth gets a lot of solar energy. The sun is known as a fusion reactor that has been burning for billion years. It gives us enough energy in a minute to give us energy for a year. In one day it gives more energy than will be used in 27 years. The amount of radiation hitting the earth in three days is the same amount stored in all fossil energy.
Carbon emissions double, sea levels rise, and occurrence of typhoons increases- these are currently the world’s biggest problems. According to the United States Environmental Protection Agency (2017), the sector with the largest contribution to global greenhouse gas emissions is the electricity and heat production sector- the sector mainly responsible for the use of non-renewable energy- contributing approximately 25% of the total greenhouse gas emissions. The answer to this problem is to use renewable energy sources – sources with little to no amount of greenhouse gas emissions. Most types of these sources, however, are more expensive and less efficient. Hydropower generation, on the other hand, produces more amount of electricity for a lower
Today, over 83 countries make use of wind power, with Denmark receiving 40% of their electricity from wind farms. Between the 1980s’ and 1990s’, wind energy was not economical in comparison with fossil fuels, but in the 21st century the oil prices grew increasingly along with public concern about global warning and fossil fuel depletion. Wind energy regained its attention from the public and
Aesthetics are improving making the solar move versatile compared to the older models. Aesthetics are the type of roof tile that has solar photovoltaic cells which are integrated into them. A switch to solar can increase a home 's value without increasing property taxes.The U.S. Department of Energy says that for every dollar in energy a homeowner saves with a solar system, it also adds between 10 dollars and 20 dollars to a home’s value. Solar power is the best alternative to regular power. Solar power is renewable, it has low maintenance cost, it is always improving, the government is also behind solar power.
2.Continual source of energy- A large percentage of the plans for renewable energy stations are focused on their capacity to provide an immediate and continual source of energy to an area. 3.Reliability- Once the sun rises and the wind always blows, the reliability of renewable energy types can far exceed that of fossil fuels. 4. Low Greenhouse Gas Emissions- Virtually all of the renewable energy plans stress that they have a much lower carbon footprint compared with any of the fossil fuel options available. 5.
Wind energy is a form of clean energy. The Worldwatch Institute estimates that wind energy could easily power 20 to 30 percent of the electricity needed by many countries. Even though wind energy only provides us with less than 2 percent of the world’s energy. Wind energy is harnessed by using turbines. The turbines propellers are pushed by the wind and that causes a generator to operate and produces electricity.
Introduction Renewable energy which are abundant such as the solar radiation from the sun is a good example are those resources which are available in large quantity across the country(Pakistan) unlike non- renewable resources which are depleting at a fast rate. The energy of the sun is generated from the nuclear fusion of its hydrogen into helium, with a resulting mass depletion rate of approximately 4.7 × 106 tons per second. The earth’s population currently needs 15 terawatts of power in total, but the solar radiation that reaches the earth on an amount to 120,000 terawatts. Hence, just a fraction of the suns energy received by the earth will cover the amount of energy requirements. About 36 years ago, the world experienced a major oil crisis which resulted in increased demand of developing alternative energy resources, which can be renewable and environmentally friendly.
Most oil sight reserves only last about 25 to 30 years, and then they have to move to a new location (“Non-Renewable”). Due to the constant search for energy, prices of nonrenewable energy is never constant unlike renewable. Subblefield outlines that “hydroelectricity is sustainable, since it is ultimately a product of the water cycle… long after fossil fuels are gone, the forces that make hydroelectricity possible will still be continuing on the Earth.” Renewable energy is also more efficient than coal. For example, “of all the energy released by burning coal… only about 40 percent is turned into electricity; the rest is wasted up the chimney as heat. A further 5 percent or so is lost in power lines; only about 35 percent reaches end uses and can be counted as final energy consumption” (“Alternative”).
Our sun is so much powerful that has existed for many years and has another five billions years of life and hydrogen fuel to burn off, so the sun is a renewable energy source that will not disappear any time soon. For that reason, we should make a shift and use more solar power that other sources. Currently, less than 1% of all the energy produced and used in the United States comes from solar energy. We should consider the many benefits that solar power can give us and how this can improve our lives for good in a long term way. One powerful benefit, and I believe the most important of all, is the good impact that will have for our environment.
There are now 1.6 million solar installations in the US. After reaching 1 million in 2016, expert estimate 2 million should be hit in 2018 and 4 million by 2022. Solar power added worldwide increase 50% last year because of a sun rush in China and US. The large lands and the large solar farms in China help increase a lot. Globally there is now 305GW of solar power capacity, up from around 50GW in 2010.