Green energy is a term that we had read or heard somehow. Still, this one can mean so many different things, and it shouldn’t be compared with renewable or clean energy. Surprisingly they represent similar energy sources that can be separated into categories. Don’t despair today we are going to explain all those energy sources and some interesting facts, keep reading!
What is green energy?
This energy comes from a natural resource like water, wind, or sunlight. The main point with this type of energy is that it doesn’t cause harm to nature. Our environment can be healthy if we use those energy sources. They have proved to be even more powerful than fossil fuels. They work using green technology that can take a natural resource like the wind. Thanks to turbines and a little bit of physics, wind can generate enough energy to power up an entire big city.
However, how can an energy source be considered green? Easy, if it doesn’t produce pollution or some kind of harm to the environment. That is the main reason why not all renewable energy sources can be considered green. Besides these, any source of green energy can be replenished at any time. There is no need to change an ecosystem to obtain them. Using these sources can present many benefits from healing the ecosystems, especially the air, which in turn help humans and animals; to economic benefits but let’s be clear sometimes these technologies can be expensive, although because all of them are locally produced, you can see a stabilization over prices and the end of political problems or supply chains disruptions at the long run.
Green energy sources that you should know
These are the sources of green energy that everybody must know to understand how the world will change. After all the fossil fuels are not limitless. They have an expired time. Instead, the green energy sources are pretty much here to stay until the planet or our star, the Sun, can no longer continue. All these sound incredible, but it’s important to know the differences between green, clean, and renewable energy before this. A single resource can easily be in the three categories like wind power, because it comes from a source that is environmentally friendly, self-replenishing, and non-polluting. For that reason, many countries are investing in wind power turbines.
We have already stated that green energy comes from a natural source. While clean energy is those that don’t release pollutants to the environment. And renewable energy can be replenished constantly, like solar and hydropower. For some years, renewable and green energy were considered the same thing, but how can you call harmless to nature a hydroelectric dam impacting the environment just by changing the waterways; for that reason, both are now separated.
Let’s check out the sources of green energy:
- Solar Power: this is the most common source when talking about green or renewable energy. This uses photovoltaic cells to capture the sunlight and transform it into electric energy that can provide power for an entire house or building. Still, it has grown until being capable of lighting up an entire city.
- Wind Power: it’s pretty much like solar power but using the wind as its source. The flow of air is used to push turbines located close to seashores or in higher altitudes sites. You can obtain electricity.
- Hydropower: here, you can count on the power of water to produce energy. This power can come from streams, rivers, dams, evaporation, rainfalls, and even ocean tides. The last ones are proving to be incredibly powerful. A couple of minutes can light up a big city.
- Geothermal Energy: this one can cause controversy with some environmental defenders. The main reason is that to obtain the source, which is steam that is under the Earth’s crust, drilling is mandatory, but if it’s made carefully without a huge impact over the ecosystem when the team can reach the source, you can get wonderful energy that can be compared even with the power of coal. Iceland is the perfect example of how good use of this energy can help an entire country.
- Biomass: This is another «green energy» that must be carefully observed and controlled to fully be considered green. Biomass energy uses wood waste, sawdust, and combustible organic agricultural waste to create a point. Still, all of these must be burned to obtain power, and it can release greenhouse gas. However, the emissions are lower than the ones created by petroleum-based fuels.
- Biofuels: to obtain these, a similar process of the stated above is done, so they must proceed with care over it. However, this can result in ethanol and biodiesel that can help with transport. By 2010, 2.7% of the world’s fuel was supplied by these biofuels. It’s expected that by 2050 that number will get over 25% of the demands of global transportation.
These are just a small look into the world of green energy. Scientists around the world are looking for new methods of obtaining power without harming or impacting the environment. We can definitely expect several news articles in this area within the next few years and keep in touch with the Magazine to find out more.
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