PFC is a whole project required to finish Architecture studies in Spain. You have to design a whole building from zero, as well as calculate both the structure and the installations.

This said, I did an environmentally friendly High School for my PFC. The whole building adjusts it's energy needs by taking into account the weather (both temperature + sunlight available). Apart from this, the green top works not only as insulation, but also gives back to the place what we take in order to build the high school.

Sunlight comes in through a series of patios. This allows to get as much natural sunlight as possible as all of the patios are facing South-East.