List Of Types Of Renewable Energy
List Of Types Of Renewable Energy
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Energy For Transport: 8% From Renewable Sources
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In the energy sector, fossil fuels are the main source of energy because of their relatively low cost. However, our energy demand is expected to increase in the future and we will no longer be able to rely on limited and polluting energy sources. Over the past decade, we have seen a positive shift towards expanding our renewable energy capacity locally and globally.
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Solar panels, offshore wind turbines and hydropower are among the alternative energy technologies that will meet our future energy needs. Our dependence on natural gas and oil is one of the biggest causes of environmental damage and is responsible for a 1.7% increase in carbon dioxide emissions into our atmosphere in the energy sector alone. To prevent further consequences of climate change on our planet the main focus will be on alternative energy sources.
According to IRENA’s annual renewable capacity figures for 2019, global renewable energy capacity reached 2,351 GW. Three alternative energy sources account for the highest percentage:
By 2023, the number of alternative energy sources is expected to increase in every sector. Electricity is the largest share of the power sector – 30%, and on the way to decarbonization, electricity will be the main energy carrier, most of which will be produced at the expense of renewable energy.
In second place is heating with 12%, and last is the transport sector with only 3.8% of alternative energy sources that can be improved.
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The infographic below highlights the current and future scope of alternative energy sources and provides an overview of investments and future plans on our path to a sustainable future.
According to the implementation of the plan set in the Paris Agreement, the total investment in green energy during this period should be 110 trillion US dollars, or about 2% (on average) of the annual gross domestic product.
Alternative energy sources have reduced power costs, especially for solar energy. According to REN21’s State of Renewable Energy Report 2019, global investment in new capacity excluding more than 50 MW of hydropower is US$288.9 billion.
The Chinese government has ended its subsidy scheme because solar energy is now considered cheaper, due to the lack of solar energy in China. As a result, the figure shows 11% less investment compared to 2017.
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Similarly, in April 2019, the UK closed its feed-in tariff scheme for new applicants who want to use alternative energy.
Investment forecasting assumes investment stability and growth for the next assessment. By far, the country’s biggest investor is China. Reducing their solar costs through subsidies had a significant impact overall and demonstrated clear dominance of the renewable energy market.
Widespread adoption of alternative energy sources depends on even more efficient renewable technologies and the restructuring of the power industry. The use of renewable energy sources makes it possible to produce clean energy on a domestic scale with technologies such as solar panels, heat pumps and biomass boilers.
To make full use of energy that is often dependent on weather or time, we need to develop even better energy storage solutions.
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With a population growth of 9.7 billion by 2050, widespread use of large-scale solar power plants may not be an ideal solution, as they take up too much land. Reducing land footprints is essential or developing more efficient technologies such as wind energy converters.
Wind energy is currently one of the main alternative energy sources in the UK, supplying around 4 million. Offshore wind energy is still underdeveloped due to expensive maintenance and deep water locations, but in the future we will be able to generate more efficient energy from oceans and deep waters.
Flaws in the design of modern wind turbines limit their ability to harness wind energy because they cannot reach the wind at high altitudes. Future aeronautical technology may lead to much more promising flight ranges of up to 500 meters where winds are strong.
The most expensive project in the early stages is to get solar energy from space. The prototype includes optical reflectors, photovoltaic cells that convert sunlight into energy, and circuitry that converts electricity into radio frequency. The built-in antenna then transmits the energy back to Earth.
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In the future, this innovative alternative energy source will be able to meet the energy needs of our growing population by taking advantage of the constant sunlight from space.
Efficient battery storage is critical to the widespread adoption of alternative energy sources. Photovoltaic solar energy depends on direct exposure to the sun, meaning a significant amount of energy is unused or wasted due to the lack of built-in solar panels.
In the future, hydrogen will become a driving source of energy. Currently, most of it is produced from fossil fuels. However, additional alternative energy is also used to produce hydrogen. Applications are diverse – hydrogen can be fed into a natural gas network or converted back into electricity using fuel cells. Hydrogen can be widely used in the transportation sector when we can find cheap solutions for the widespread adoption of such alternative energy sources.
Hydrogen has the highest bulk density of any fuel, making it excellent for distribution and storage. Its stable chemistry means it can store energy better than any other medium.
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In the future, the creation of supply and storage infrastructure will allow more efficient use of hydrogen. Future plans for hydrogen include building an underground storage system, for example, where excess wind energy can be converted into hydrogen through electrolysis.
Our current global infrastructure is designed to use only fossil fuels. It takes years and huge resources to build a new one. In recent years, autonomous technologies based on alternative energy have succeeded in providing electricity to remote locations in the form of mini or local networks.
The complete decentralization of the grid allows customers to sell electricity back to the grid and gain control over the energy needed and consumed. However, the UK is far from achieving full decentralization due to the sheer scale of the change.
However, several companies can be considered pioneers in the recovery of autonomous networks in the UK, such as UPS and some retail and supermarket chains.
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The expansion of alternative energy will create more jobs in the renewable energy sector. Development and implementation in all sectors require years of planning and significant investment.
To ensure a future without more greenhouse gas emissions, we can start with additional restrictions on future fossil fuel projects and stricter emissions targets.
Wally is a content writer since 2017. She writes well-researched articles on renewable energy, sustainability and green technology. She has experience and knowledge of environmentally friendly energy products and closely follows trends in the field of green energy. With over 5 years of experience in the industry, his work has been published in various media such as Enterprise, Business Insider, Canadian Geographic, uSwitch and eCycle. UK government websites have also used his work in their publications.
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The Importance Of Renewable Energies
Learning about energy resources is supported by 7 basic concepts: 4.1 Humans transfer energy from the environment and convert it into forms useful for human activities. The main sources of energy in the environment are fuels such as coal, oil, natural gas, uranium and biomass. All primary fuels except biomass
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