Renewable energies are also known as alternative energies o green energyThese are energy sources based on the use of natural resources: the sun, wind, water, or plant or animal biomass. They are characterized by not using fossil fuels, but rather natural resources capable of unlimited renewal.
One of their strengths is that they have a very small environmental impact, since in addition to not using finite resources, they do not generate pollutants.
Producing more and more renewable energy and abandoning conventional sources is a need shared by all countries in the world.
What are renewable energies?
Below we list the main sources of renewable energy that exist today:
- Solar energy: radiation from the sun.
- Wind energy: wind.
- Hydropower: rivers and freshwater streams.
- Tidal energy: seas and oceans.
- Wave energy: movement of the waves.
- Geothermal energy: heat from the earth.
- Biomass: organic matter.
What are the characteristics of renewable energies?
These energies possess various characteristics; we will mention some of them:
- They help to boost self-sufficiency
The use of renewable energy helps homes become much more self-sufficient in their electricity consumption. In the not-too-distant future, all new buildings will need to have their own solar panels; electricity self-sufficiency is much easier to achieve than we imagine.
- They are free natural resources.
Renewable energies come from free-access natural resources.
- They can reach isolated places
By generating energy through natural sources, it can be found anywhere in the world; therefore, any corner of the world can generate its own energy and be self-sufficient.
Advantages of renewable energy
Compared to conventional energy sources, we can list the following aspects as the main benefits of renewable energies:
- They help reduce greenhouse gas emissions, contributing to slowing global warming. They are considered clean energy sources because they are more environmentally friendly than conventional energy sources.
- They reduce energy production costs, create new jobs, and reduce dependence on major energy powers and countries with fossil fuel reserves (oil, coal, and natural gas).
- They produce energy indefinitely, as they are obtained from inexhaustible and unlimited energy sources.