Photovoltaic solar energy: economical and ecological
Luxembourgers are increasingly interested in renewable energies. As proof, photovoltaic solar panel installations are a great success. On your side, you hesitate to invest in this technology? To convince yourself, read on!
These panels, what are they used for?
The question may seem boat but ultimately, do you know it's their utility? To put it simply, they allow the production of electricity thanks to the sun : your habitat becomes its own source of energy.
More technically, the panels are composed of voltaic cells. On the latter, there are multiple components, including silicon. It is this one which, once illuminated by the rays of the sun, will instantly allow the production of current. From there, metal conductors come into play. Located under the silicon layer, it is they that will allow electricity to be consumed.
What about the weather?
The more the sun shines, the more power will be produced. However, when the sky is cloudy and the light is not present, it does not mean that production will stop. It will however be slowed down, since the quantity of watts produced is proportional to the solar brightness rate .
Panels ideally located for maximum efficiency
Solar panels can be installed in different places on a house, sometimes even on a floor structure, but they are the 
mostly placed on the roof .
Ideally, to expect high electricity production, it should be facing south and tilted between 30 and 35 degrees . If your roof is oriented between east and west, it is important that its slope is between 15 and 50 degrees: nevertheless, the yield will remain lower than if it had been located in the south. To hope for the same efficiency, you will need to place more panels.
Note that it is essential that your house is not shaded by trees, pylons, or even a chimney. However, if shadow areas cover your roof, your installer can offer you the installation of micro-inverters or power optimizers, so as to limit the effect of lack of brightness on the panels.
A roof in good condition
Before the installation of photovoltaic panels on your roof, it is essential that professionals come to inspect it. If maintenance and repair work needs to be done, it is best to do this before installation.
It would cost you extra if they had to be places once the panels installed, because they would have to be dismantled.
A number of panels to be determined
In the Grand Duchy, the annual radiation of the sun on a m² of photovoltaic panels saves, on average, 100 liters of fuel oil. The more you have panels, the more you can make great savings.
The professional you will be able to work with will be able to determine with you the area needed to cover all of your needs.
On average, you will keep your signs for at least 25 years. After this period of time, their power may begin to deteriorate little by little.
Two important advantages
By opting for photovoltaics, you completely review the way you consume energy, and make a gesture to the planet since you limit your CO2 emissions , and therefore fight against global warming. You make your contribution and think of future generations.
Privilege solar energy will also allow you to reduce the amount indicated on your electricity bill . If the investment can seem substantial, you will make it profitable over a decade, so you will win afterwards. It is difficult to determine the number of years it will take, it depends on several variables (geography situation, the orientation of your home, the inclination of your roof, the number of panels installed, etc.).
Quality and self-cleaning materials
The panels are made of aluminum, glass and silicon . These three components are known to be solid, and therefore withstand the capricious weather to which they can be subjected (wind, hail, etc.), but also to temperature differences.
The device will also clean itself automatically, thanks to the rain: no regular cleaning on your part is therefore required. Nevertheless, once a year, it is advisable to carry out an interview , so as to remove any dirt present on the panels. If you do it yourself, go with caution, they are extremely fragile.
A long-term investment
Photovoltaics are not given, particularly because of the research that is done, and which is expensive. The difficulty of the pose will also weigh on the amount of work. That being the case, in a few years, you can make the money invested, thanks to the savings you will realize on your electricity bills.
The investment is therefore in the tens of thousands of euros . That being the case, know that it will bring value to your home 
and that you will be able to derive an added value if you wish to sell it later.
Fortunately, the state of Luxembourg grants aid to support those who wish to favor green energy. Thus, this grant, called PRIMe HOUSE, can cover a part of your expenses (all the precise information on this subject can be found here .
It should be noted that some Luxembourg municipalities also grant aid. It is therefore useful to inquire with yours to see if you can receive additional financial support.
Install his panels yourself?
It is better to avoid, and to call on a qualified professional, because the installation of a photovoltaic system turns out to be complex. To avoid inconvenience, it is better to contact a installer who enjoys a good reputation.
This article has been written in partnership with ADB Lux Service
