FREQUENTLY ASKED QUESTIONS

How does the conversion of light into electrical power work?
The solar cells convert the sunlight into electrical power. The solar cells consist of ultra-pure silicon which via selective doping receives the characteristics of a semiconductor. When sunlight shines on the surface of the solar cell a potential difference develops between the upper and lower sides of the cell. If one now connects the two sides of the solar cell with each other, electricity flows and the cell produces power. To generate the desired voltage several cells are connected in series; the desired current is achieved by connecting the cells in parallel.

Can hailstones destroy the modules?
PV solar power modules are usually very well protected against hailstones. The module is tested in simulated weather conditions (test in conformity with the IEC standard), which includes being pelted with ice pellets. The likelihood of modules being destroyed by hailstones is relatively low.

Is it worth having modules that track the sun?
In general, a typical roof installation is not suitable as a tracking system. The roof cannot be rotated and the modules are usually mounted as a fixed installation. Where there is freedom of mobility however this option should be considered. On the one hand, tracking can increase the energy yield by up to 15% whereas on the other this does entail extra costs. Moving parts are subject to wear and can fail. Without tracking, a PV solar energy installation needs almost no servicing.