Solar panels

Solar panels, or solar collectors, consist of photovoltaic cells that convert the energy of sunlight into electricity. Solar panels are reliable and as their installation does not require any special permits, it is considerably easier to use solar energy than wind energy.
Most solar cells are based on various technologies of crystalline silicon:

- Polycrystalline solar panels are made of cells that contain multiple small silicone crystals

- Monocrystalline solar panels are made of silicon produced in the form of large crystals, therefore, the manufacturing of these solar panels is more expensive.

In recent years, the price and efficiency gap between polycrystalline and monocrystalline solar panels has been constantly narrowing and, therefore, one cannot be preferred over the other. Nevertheless, the choice should be made based on the quality characteristics of a specific solar panel.
In Estonia, the optimum mounting angle of solar panels is 38–40 degrees in line with the ground, providing maximum productivity per year. When the solar panels are mounted at a greater angle, the productivity is higher during winters, and when the panels are mounted at a 10–20 degree angle, the productivity is increased primarily during summers.

Small and medium systems are generally mounted on the roofs of buildings. We offer special solutions for fastening solar panels onto pitched as well as flat roofs, ensuring a high-quality mounting.
If there is no suitable roof surface due to shadows falling on the roof, or if the roof is too small, it is possible to install solar panels onto the building façade or the ground. The façade solution is appropriate primarily to enterprises, for whom the exposition of solar panels is also important for the purpose of image building.

Solar panels may substitute traditional materials like roofing or façade finish. Such solar panels with a special design create an opportunity to connect energy production with architectural solutions.
In general, real property ownership means expenses. However, solar panels that are installed to a building or integrated to the building’s architecture allow putting real property to earn profit from energy savings.