For starters, renewable energy is the cleanest alternative for the environment. They are found in nature in an unlimited amount and once consumed, can regenerate naturally or artificially. According to the Institute for Energy Diversification and Saving of Energy (IDEA), compared to conventional sources, renewable energy resources are clean whose impact is virtually zero and always reversible.
- Hydropower. It is produced by the falling water. Hydroelectric plants use water in dams retained in reservoirs or swamps high. Water passes in its fall hydraulic turbines, which transmit energy to an alternator, which converts it into electricity.
- Wind energy. It is the kinetic energy produced by the wind. Through wind turbines or windmills drafts harnessed and transformed into electricity. In wind power, we find offshore wind whose wind farms are located offshore.
- Solar energy. This type of energy the sun provides as electromagnetic radiation (light, heat and ultraviolet rays mainly). Using the sun’s energy can lead to solar thermal (hot water used to produce low temperature for sanitary and heating) solar photovoltaic (via semiconductor plates that are altered by solar radiation), etc.
- Geothermal energy. It is one of the lesser known sources of renewable energy and is stored beneath the Earth’s surface as heat and linked to volcanoes, hot springs, fumaroles and geysers. Therefore, it is what comes from inside the Earth.
- Tidal energy. The movement of the tides and currents are able to generate electricity cleanly. If we speak specifically of the energy produced by the waves, we would be producing wave energy. Another type of energy that uses the thermal energy of the sea based on the temperature difference between the surface and deep waters known as maremo-thermal.
- Biomass energy. It is from the use of animal and plant organic matter or agro-industrial waste. Includes waste from agricultural, livestock and forestry activities and by-products from the agro and wood processing.
Renewable energy is abundant and clean resources that do not produce greenhouse gases and other emissions harmful to the environment as CO2 emissions, something that does occur with non-renewables such as fossil fuels. One of its main drawbacks is that the production of some renewable energy is intermittent and dependent on weather conditions, as, for example, with wind energy. However, the IDEA notes that by its indigenous nature, this type of “green” energy help reduce our country’s dependence on external supplies, lessen the risk of an undiversified supply and promote technological development and job creation.
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