However, the answer is based on a number of individualized factors like household energy use, home location, roof size ... following tool will allow you to determine the number of solar panels ...
For trackers, users can define angles or let PVGIS calculate them to maximize energy output. The tool also simulates energy ...
Fraunhofer IWU has launched an online tool for the sizing ... evaluates the ideal size of PV systems. It considers location, roof pitch, power consumption profiles, and solar module specifications.