Think Trespa Magazine建材

e Minami building shares a communal back area with Nishi and Higashi Details of the Nishi (top) and Higashi buildings (bottom) “ is is de nitively the path to the future .” Christophe Debouit, project coordinator for NEDO Europe Hikari’s technical achievement was made possible by the combined use of three renewable energies: photovoltaic panels covering the entire roo ops of the Higashi and Nishi buildings as well as the Minami façade, a geothermal system coupled with an absorption pump for cooling, and a colza-oil cogeneration plant. Additionally, innovative technologies are used to tightly control the energy consumption via the automatisation of certain functions of the building. For instance, light and heating are controlled by presence detectors and the housing units are equipped by tablets to visualise and control individual consumption. Finally, a system of batteries and a shared energy system network allows the stockage and the mutualisation of the energy production so when one of the three buildings produces more energy than it needs, the surplus is sent to the two other ones. As a result, the Hikari buildings produce more energy than they consume. “ e objective of the Hikari project was to prove that we could realise a multi- purpose positive energy community. So far, there have been only such buildings for single use, such as o ce buildings. With Hikari, we wanted to see if we could adapt it to buildings which would combine housing, businesses and o ces, that is with di erent energetic behaviour,” explains Christophe Debouit, project coordinator for NEDO Europe. “Hikari opens the door to the extension of this technology; this is de nitively the path to the future.” ■ 34 Imagine Trespa Hikari Buildings