Since energy is one of the main sectors that contributes the most to climate change, it is time that we begin to replace fossil fuels, which emit greenhouse gases into the atmosphere, with other alternatives. Luckily, there are other sources of energy that do not generate as much impact on the environment, one of them is energy from the sun. For this reason, in this Green Ecologist article we will talk about What is solar energy, what it is used for and its advantages and disadvantages. If you want to learn everything about the subject, we invite you to continue reading.
In this section we will develop what the sun's energy is, what it is for and its types. To better understand the subject, we will divide the content into three parts. Let's get started!
The energy from the sun, also called solar energy, is the radiant energy from the Sun reaching planet Earth in form of electromagnetic radiation. It is generated by nuclear fusion reactions. It is worth mentioning that solar energy is a type of renewable energy, therefore, it is considered a type of clean energy, that is, it does not generate pollutants (or at least not as many as those produced by non-renewable energies), and it is inexhaustible, at least on the human timescale.
The sun's energy can be divided into two types according to how it is used:
Regarding the uses of solar energy, we cannot fail to mention its biological importance since all living beings that inhabit planet Earth need solar energy to live. In principle, the rays that strike the planet, among other factors, increase the temperature of the Earth's surface, making life on Earth possible. Also, they allow to regulate the temperature of those ectothermic organisms, such as reptiles that are not capable of regulating their own temperature. In addition, using energy from the sun, autotrophic organisms (that is, plants, algae and cyanobacteria) carry out photosynthesis, a key process within the food chain.
On the other hand, the sun's energy can be used for people's daily activities, replacing the fossil energy sources that are typically used. Let's see here how solar energy can be harnessed.
To go deeper into this topic, we recommend you read these other articles by Green Ecologist on What is solar energy for and the Uses of solar energy.
As we have seen in the previous section, there are two types of solar energy and each of them works in a different way. In the next two items we will talk about how to obtain solar photovoltaic and thermal energy.
Read more about What are solar panels and how they work in this other post.
Like any energy source, energy from the sun has certain advantages and disadvantages. We will develop both below.
Learn more about the Advantages and Disadvantages of solar energy by reading this other article. Also, here below you can see a video about this renewable energy.
If you want to read more articles similar to What is solar energy, we recommend that you enter our category of Renewable Energies.Bibliography