SYCOMOREEN has designed and is currently building an OPALE extension [Overall Photovoltaics with Automated Liquid Enhancements]. This fourth significant OPALE project (11.88 kWp) is remarkable by a triple purpose : 1) Production of electric energy 2) Extraction of thermal energy 3) Bioclimatic garden in order to get a dwelling with positive energies (thermic + electric) and an autonomous lasting food production. The works are in progress and the technical details will be published later.