ENERPOS / La Réunion
Géolocalisation : Latitude
Longitude
South
West
21° 20'
55° 29'
BUILDING FEATURES
NET ZERO ENERGY BUILDING
Building Owner : University of La Reunion Type of building : Classrooms,offices Includes : 7 classrooms, 7 offices, 1 meeting room, car park, planted patio Employees/Occupants : Thirteen staff members (administration, teachers...), students Number of Storeys : 2 Gross Floor Area : 1,425 m² Air-Conditioned Space : 246 m² Spaces with Natural Ventilation & Ceiling Fans Only :
In the French tropical regions, nonresidential buildings are often badly designed with no respect to basic bioclimatic principles. ENERPOS (which stands for Positive Energy in French) is the first educational net-zero energy building in the tropics and one of the 13 Net ZEBs in the tropics thanks to its bioclimatic design. Building an energy efficient building in such a climate is particularly challenging. However, the energy expectations with regard to ENERPOS have been reached, even largely exceeded : in terms of energy use, it consumes one seventh of the average for university buildings in Reunion Island and produces seven times its consumption by BIPV (Building Integrated Photovoltaic) roofs. The French Agency for Environment and Demand Side Management (ADEME) and the Regional Council of La Reunion funded extensive metering that measures energy by end use and PV production. The building is not only an energy-efficient building, but also displays various passive methods to reduce energy consumption while providing a comfortable environment for its users. It has been designed with priority given to the passive components such as cross natural ventilation and solar shading.
435 m² Total Net Floor Area :
CLIMAT ANALYSIS
681 m² Performance Standards : _PERENE 2004 _ HQE Total Cost : $1.7 million Cost Per m² : $1110 (gross/ floor area) $2320 (net floor area) Substantial Completion : August 2008 Occupancy : 2009
ENERPOS is located in Saint Pierre on the French island of La Reunion. This island, whose tropical climate is hot and humid, is located in the Indian Ocean. This area is also often struck by tropical cyclones, generating building difficulties. The climatic conditions (Temperatures and Sun rays) of Saint-Pierre are listed in the Table. The prevailing winds blow from the east and south-east - the west coast being known as the leeward coast. The energy situation is complicated because La Reunion is very a small island. The production of electricity is limited, and the island aims to have energy independence by 2030.
CLIMATOLOGICAL INDEX CARD ST PIERRE'S URBAN AREA
1