Scene setter The integration and use of renewable energy in buildings for heat and power generation still encounter unsolved technological problems linked to the security and reliability of energy supply and related costs. Partly, it is due the intermittency of some renewable energy sources, such as solar or wind. The difficulty is even greater in cases where a 100% security of energy supply is essential such as for hospitals and especially when several renewable energy sources are used. This inducement prize will reward a hospital that has an innovative and within its premises perfectly integrated combined heat and power (CHP) installation