In early discussions, LINK expressed the conceptual interest to integrate PV cells that can function twofold: (a) generate energy and (b) serve an educational purpose, raising environmental awareness to the students. In order to materialize the vision in its best potential, we identified an opportunity to  use the PV cells in two ways: (a) maximize the energy generation and (b) as the PV panels are opaque elements they can contribute as a solar control mechanism to provide a sound indoor climate. This immediately lead us to the next question: where shall we place the PV cells and in which density? Which is the right balance of maximum performance without disturbing the architectural intent, the views out and the invited daylight quality?