The productivity of a solar park is dependent on the plant’s location, the angle of the panels and their orientation in respect of the cardinal points, but shadows can also play a role. The savings from a solar park vary seasonally – electricity bills can decrease by up to 95% in summer, but less so in winter. The peak in productivity of the panels is usually between March and the end of August. The months with the best productivity are usually April and May, when the sun is at its highest and temperatures are cooler. In winter, the sun moves lower across the horizon and productivity is therefore lower as well, but is not completely non-existent.

No roofing material is an obstacle to the installation of solar panels if the roof structure and load-bearing capacity are in a suitable condition for installation. However, it is advisable to ask a design engineer to calculate the load-bearing capacity of the roof to avoid unpleasant surprises later on. If installing the solar panels on the roof is not feasible, they can also be placed on the ground.

A ground-mounted solar park takes up more space, but the advantage is that the solar panels can be installed in the optimal orientation – usually south. The frames of solar panels are usually installed at an angle of 35 degrees. The soil must be considered when a ground-mounted solar park is built, as soil containing limestone may increase the price of installation, whilst installing solar panels on wet or swampy soil is not possible at all. A geodetic base plan must be made before construction work of the ground-mounted park begins to ensure that the soil is suitable.

Solar panels are a worthwhile investment in the long term, increasing the market value of the building and helping to save on fixed costs.

Solar panels can be installed on a private house if:

  • there is enough free space on the roof that is not obscured by tall trees. Alternatively, the panels can be installed on the ground close to the building;

  • the building’s electricity system is safe;

  • the roof is strong and will not require renovation in the next 30 years.