Photovoltaic and thermal solar energy
Photovoltaic and thermal solar energy are the most popular ways to harness sunlight for the benefit of human beings, one generates electricity and the other heating and hot water
Photovoltaic and thermal solar energy
The best known renewable energies within our country are solar thermal and photovoltaic. This fact is not accidental, and is that with the amount of daylight hours that our weather presents, the use grazes the maximum admissible. Which of the two is more advisable? Is there any difference between solar thermal and photovoltaic?
Difference between solar thermal and photovoltaic
Solar thermal energy (or solar thermal)
On the other hand, solar thermal or solar thermal energy consists of harnessing the sun’s energy to produce heat that can be used to cook food or to produce hot water for domestic consumption , whether hot water (DHW) or heating or for electricity production .
It is used above all to heat a fluid that serves for the production of sanitary hot water or heating, for example. But in addition, that thermal energy can be used to generate steam that turns conventional turbines and produces electricity.
Additionally it can be used to power an absorption refrigeration machine , which uses heat instead of electricity to produce cold with which the air in the rooms can be conditioned.
The collectors of solar thermal energy are classified as collectors of low, medium and high temperature:
- Low temperature collectors . They provide useful heat at temperatures below 65 ° C by means of metallic or non-metallic absorbers for applications such as pool heating, domestic heating of bath water and, in general, for all those industrial activities in which the process heat is not greater 60 ° C, for example pasteurization, textile washing, etc.
- Medium temperature collectors . They are the devices that concentrate solar radiation to deliver useful heat at a higher temperature, usually between 100 and 300 ° C. In this category we have the stationary concentrators and the parabolic channels, all of them effect the concentration by means of mirrors directed towards a smaller receiver. They have the disadvantage of working only with the direct component of solar radiation, so their use is restricted to areas of high insolation.
- High temperature collectors . They exist in three different types: the parabolic dish collectors, the new generation of parabolic trough and the central tower systems. They operate at temperatures above 500 ° C and are used to generate electricity ( thermosolar electricity ) and transmit it to the electric grid.
The demand of electrical energy by the world population has made the rise of these last types of solar thermal energy is increasingly accentuated by increased demand for electricity consumption and awareness of energy efficiency . Both take advantage of the sun as a source, but both in management and in operation in response to demand, they are different energies.
As for the storage system, the difference is that while photovoltaic solar energy uses batteries, solar thermal is stored in water tanks.
Two different concepts but with the same purpose: to take advantage of the sun as a source of energy, a clean and inexhaustible energy, valid for any place in the world since in all regions the sun rises, although its radiation is greater or lesser.
Although it is true that the initial investment in this type of energy can be considerable, in a few years it is amortized. And the most important thing: with its use you will not only save on your invoice but you will be contributing to a more sustainable world.
If you are interested in moving to solar energy, at Viesgo we make it easy for you. Go to www.viesgosolar.com and find all the information you need. With our simulator you can calculate, in just 1 minute, the cost of your installation, the time in which you have amortized and what you have saved. Do not wait any longer and move to solar.
Photovoltaic energy
In the case of photovoltaic solar energy , it directly transforms the natural light of the sun into electricity. This is possible thanks to the installation of solar panels, formed by modules that contain photovoltaic cells, whose sheets of semiconductor materials and transparent glass cover let solar radiation pass while also minimizing heat losses.
From the moment that sunlight hits the faces of these cells, an electric current is generated, a process known as the photoelectric effect. Among the applications that have this way of obtaining energy are the feeding of motors and electrical appliances or the discharge to the electrical network.
If the thermal solar energy needs a thermal process, the photovoltaic one needs a chemical process: it consists of the transformation of radiation of the sun into energy through a direct electric current that is obtained by the use of semiconductor materials. This transformation into energy is immediate thanks to the photovoltaic modules.
The development of this renewable energy far exceeds solar thermal energy: there are a total of 145 GW installed today. This difference has a simple explanation: self-supply ; Photovoltaic energy systems are recommended to be self-sufficient in electricity. This has led manufacturers to develop storage systems and modules that are increasingly accessible and viable for the population.
Surely you know how you get solar energy, through the sun’s radiation, but, did you know that depending on how you take advantage of this you can produce electricity or heat?
That is why we distinguish between two types of technologies: photovoltaic solar energy and solar thermal or solar thermal energy, whose operation is totally different. In this post we explain what each one consists of.
Read more: what is photovoltaic solar energy
385094 786660I real pleased to find this site on bing, just what I was searching for : D too saved to bookmarks . 295768
548979 341649Trop excitant de mater des femmes lesbiennes en train de se doigter la chatte pour se faire jouir. En plus sur cette bonne petite vid o porno hard de lesb X les deux jeunes lesbienne sont trop excitantes et super sexy. Des pures beaut de la nature avec des courbes parfaites, les filles c est quand v 41072
551180 366283Really finest men and women messages are meant to charm allow honor toward groom and bride. Newbie speakers in front of excessive locations need to usually our own gold colored dominate in presenting and public speaking, which is to be private interests home. very best man speach 907766
21244 801414Hi, you used to write exceptional articles, but the last several posts have been kinda lackluster I miss your super writing. Past couple of posts are just slightly out of track! 403210
190286 749977wonderful . Thanks for informations . Ill be back. Thanks again 625175
I very delighted to find this internet site on bing just what I was searching for as well saved to fav
It’s nice to see the best quality content from such sites.
Pretty! This has been a really wonderful post. Many thanks for providing these details.
This is my first time pay a quick visit at here and i am really happy to read everthing at one place Watch bbc persian
104253 379132Just wanna remark which you have a very good web internet site , I like the layout it really stands out. 48078
winter jazz music
Very well presented. Every quote was awesome and thanks for sharing the content. Keep sharing and keep motivating others.
147536 345992Directories such given that the Yellow Websites need not list them, so unlisted numbers strength sometimes be alive more harm than financial assistance. 28392
always i used to read smaller articles that as well
clear their motive, and that is also happening with this article
which I am reading here.
I really like reading through a post that can make men and women think. Also thank you for allowing me to comment!
I appreciate you sharing this blog post. Thanks Again. Cool.
Good post! We will be linking to this particularly great post on our site. Keep up the great writing