In September 2018, we installed 23 Jinko Solar panels with 275W of power each at the Vallcarca i els Penitents Library in Barcelona, with a total installed power of 6.3kW. It was a public tender from the Barcelona City Council. As it was a green roof, the system was specially designed for this installation.
The strengths of this system are:
- The custom design: it is fully integrated with the building.
- Direct fixing to the roof: secure anchoring and distributes the weight evenly.
- Easy assembly of the structures for photovoltaic solar panels.

Illustration 12: Barcelona, September 2018. Custom Structure System.

Illustration 13: Barcelona, September 2018. Custom Structure System.

Illustration 14: Barcelona, September 2018. Custom Structure System.