This new building in Louvain-la-Neuve houses 500 employees that were previously spread across six sites. Nearly zero-energy? "This means that our energy balance is almost neutral. Our requirements in terms of heating, mechanical cooling and artificial lighting are limited and the energy used for those 3 items is almost counterbalanced by the electricity generated with the solar panels installed on the roof", explains Emmanuel Hazard, Project Leader for the new headquarters.?"And the icing on the cake is that we emit 90 tons less of CO2 into the atmosphere each year".