Shelters with optional solar systems

These are 2 shelters of different sizes, each of which can be purchased in 4 different versions.
The 1st version is the simple (bare) version of the shelter,
the 2nd version has a small solar system,
in the 3rd version a large solar system and version number 4 includes a large solar system with an electric charging station.
Of course, the price, maintenance costs and income vary depending on the design of the shelter.
For more information, it is best to take a look at the data sheets.
Characteristics :
- Price: 10,000 - 50,000 €