Pilot 1 – CIRCE headquarters Tribe Project
Location map & conditions (climate)
Location: Zaragoza – Spain
Max temp: 31.5ºC
Min temp: 2.4ºC
Av humidity: 62%
Zero Emissions building dedicate to R+D+I activities, including laboratories and offices.
Size: 1,743 m2.
Construction date: 2010
Building owner & users
Number of regular users: 192 people
Gender classification: 61 % Men 39% women
Average age: 33 years
Public Autothority: CIRCE Institute
CIRCE building has implemented a modern lighting control based on occupancy detectors.
Kwh PE/m2 per year
Heating: 27.71 kWh/m2
Lightning: 13.84 kWh/m2
Cooling: 4.34 kWh/m2
kW wind turbine
CIRCE’s building behaves poorly during summer time. When designed, it was expected to not require any air conditioning, basing its operation during summer on underfloor cooling and natural ventilation systems. Nevertheless, the thermal inertia of the building was underestimated and both cooling systems presented problems. From one side, the underfloor system caused ambient water condensations, supposing a safety problem. On the other, the natural ventilation system required from the building users to follow some protocols for windows, doors and roof skylight opening and closing, that employees did not follow adequately. In this situation, the installation of fan coil units was needed, as the temperature raised even 39ºC in the offices.
The installation of some ICT controls, relying on the existing monitoring system, together with a behavior change of the employees is expected to generate energy savings around 15%.