The efficiency of solar cells is, apart from their own properties, largely dependent on the mounting system in which they’re applied. With incorrect mounting or lesser-quality material, cells can break and lessen the efficiency of the cells.
With the ESDEC and Van der Valk calculators, you can easily calculate which materials you need yourself and be certain you are ordering the right materials. This prevents mistakes and saves a lot of time, the calculators of both suppliers are only available for the professional installer.
Van der Valk Solar System
The ValkPVplanner is and online calculation program that calculates the right mounting materials for all roofs via Google in quick and easy steps, also outside the Netherlands. The ValkPVplanner is user-friendly, fast and complete.