alternative-energy

WHAT IS THE ORIENTATION AND INCLINATION OF MY PHOTOVOLTAIC ROOF?

To optimize the energy production of your solar panels, its tilt and orientation are very important. Ideally, to better capture the sun, a photovoltaic panel should be positioned perpendicular to the sun’s rays. In practice, it is not always easy to find the right orientation, because the slightest obstacle or shadow of a building can reduce the performance of photovoltaic panels. Its installation should not be done randomly. Know that 3 criteria must be met to determine the potential of your panel: power, orientation and inclination of a photovoltaic roof. If one of these criteria is missing, the production potential is falling. Hence the importance of knowing the ideal location of solar panels for a better yield.

THE PRINCIPLE OF THE PHOTOVOLTAIC ROOF

The photovoltaic panel is a very profitable source of energy: free, ecological, silent and inexhaustible. It is capable of capturing the energy sent by the sun through semiconductor photovoltaic cells and then converting it into continuous electricity to power your home. However, in order to sustain this energy in peak or nominal power, its location must be optimized. Indeed, the capacity of a photovoltaic depends largely on its installation. It must receive as much light energy as possible in order to ensure better energy productivity. Thus, various criteria must be met to have the optimal position of your photovoltaic roof. The orientation and inclination will therefore have a very great influence on the production.

THE OPTIMAL ORIENTATION

The orientation of your photovoltaic roof is very important for better productivity. As a general rule, the sun rises in the east and sets in the west via the south. Therefore, for an optimal solar panel installation, a south-facing orientation should be preferred. It is only in these directions that the solar panel receives the most solar energy during the day and throughout the year. However, it is quite possible to orient your panel to the north (if you are in the northern hemisphere) or to the east-west. In this case, you will produce from the morning until the last rays of sunshine instead of taking advantage of the most productive position of the sun in the middle of the day.

THE OPTIMAL INCLINATION

Like orientation, the tilt of the panels contributes a lot to the summer production of electricity. Indeed, your photovoltaic panel must be perpendicular to the sun’s rays. Depending on the season, the sun takes a different course which is not without consequence to the inclination of the sensor of the photovoltaic panel. Taking the example of Europe. In winter, the sun is lower and therefore the optimal angle is 60°, 45° in spring and 20° in summer. Therefore, an inclination of 30° to 35° to the horizontal is a good compromise. A steeper or steeper inclination can lead to losses of 4% to 40%, more or less.

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