Research on renewable energy and its most important advantages

Renewable energy advantages

The use of renewable energy leads to lower carbon emissions and reduced air pollution, which has been one of the most prominent pollutants for decades, but there are many social and economic advantages that have only appeared in recent decades, as the deployment of renewable energy technologies has become more widespread, and the advantages of renewable energy are in Comes:

reduce pollution

Wind, sun, and hydropower produce little or no air pollution. Other renewable energy sources, such as biomass and geothermal energy, emit pollutants into the air but at much lower rates than most conventional fuels, for developing countries. Approximately 2.9 billion people still depend on wood and coal for cooking and heating homes, and this has led to significant air pollution, making it necessary to search for alternative and clean energy sources, and perhaps biomass energy and solar energy are suitable for these countries.

Flexibility and speed in application

Some renewable energy technologies are deployed in distributed units, making them less likely to fail on a large scale, and this brings special advantages to them during severe weather conditions or emergencies, as these technologies can be deployed quickly if the need arises, and deliver electricity to people without developing complex infrastructure And time consuming.

recruitment

Renewable energy provides a large and growing number of jobs around the world every year, according to estimates by the International Renewable Energy Agency (IRENA) In 2017, 10.3 million people worldwide were employed in the renewable energy sector, due to the increase in investments in the world, and due to the rapid decline in costs and technological improvements and government policies to support renewable energy sources.

get energy

More than one billion people lack access to electricity, while another billion suffer from unsafe or unreliable electricity supplies. Therefore, due to improved reliability, lower technological costs, and the introduction of policies that support electricity used from renewable energy, the application of renewable sources has become in about 80% of the population of countries Rural or small developing countries is widely accepted. Renewable energy sources have grown rapidly in recent years, due to policy support, and cost reductions in solar photovoltaics and wind energy in particular. The electricity sector remains the most important point for using renewable energy sources, especially with the growth Solar photovoltaics and wind power have been strong in recent years, based on their significant contribution to hydropower exploitation, but electricity accounts for only a fifth of global energy consumption, and the role of renewables in the transportation and heating sectors remains sensitive in the energy transition.

Renewable energy sources

The term alternative energy is also called renewable energy sources, it means energy sources that are an alternative to the most commonly used non-sustainable sources, and the most common renewable energy sources are:

solar energy

Sunlight is one of the most abundant energy resources on the planet; The amount of solar energy that reaches the Earth’s surface in one hour is more than the total energy requirements of the planet for an entire year, and although it seems like an ideal source of renewable energy, the amount of solar energy we can use varies with the time of day and year, It varies with geographic location.

Wind Energy

Wind is an abundant source of clean energy in many countries, and electricity can be generated from wind energy by using turbines to power generators that feed the electricity.

Hydropower

Hydropower is seen as one of the most economically and commercially developed resources, and it is utilized by building a dam or barrier, a large reservoir can be used to create a controlled flow of water to move turbines and generate electricity, and this source of energy is often more reliable From solar or wind energy, especially if the energy is generated by the tides and not by the river, and it is also allowed to store electricity for use when demand reaches its peak, that is, when there is energy demand.

Tidal Energy

Tidal power is another form of hydropower that uses tidal currents twice a day to power turbine generators. It has a low tidal current.

geothermal energy

Geothermal energy can be used to heat homes directly or to generate electricity through the use of natural heat located under the surface of the earth, and the interest in geothermal energy varies from one country to another according to the availability of geothermal heat in it.

biomass energy

This energy results from converting solid fuels made from plant materials into electricity, and biomass involves burning organic materials to produce electricity. Agricultural, industrial, and household waste into solid, liquid, or gas fuels.