The energy is an important issue to deal with. Particularly, in case of planning a new construction, conversion or extension of a building’s roof.

Photovoltaic installations can be installed on a weekend home, the own house roof, a school, on office buildings or factory buildings and even as large power plants in fields to produce electricity.

There are two different kinds of solar power installations:

1. Grid-connected installations: the produced energy is fed into the public grid.
2. Off-Grid installations: the produced energy can be provided for self-supply