Since September 2004, the school building has been used full-time by approximately 1,700 students and around 91 teachers , who are very satisfied with "their" school. As well as the building concept, the interior climate in particular is praised. A survey indicated that the air quality and the temperature in the classrooms are considered to be very good to excellent. The readiness to identify oneself with the school has improved significantly due to the new school building. This is also evident in the way the furnishings are handled.
In 2005, the annual primary energy requirement for heating, cooling, ventilation and auxiliary energy was already approximately 70% below that of a conventional school building with uncontrolled window ventilation, static heating surfaces, and conventional heat generation with a gas boiler. As the building's heating energy consumption, at approximately 37 kWh/m² p.a., turned out to be somewhat higher than calculated, there are currently efforts being made to achieve the ambitious planned value of 30 kWh/m² p.a. by means of optimising operations.

The same applies to the heat pumps, for which the supply temperature is to be reduced further. The optimisation of overall systems operation during the first phase of occupancy was successful in lowering the 2006 electricity consumption for distribution of air and water. Further savings are by all means still possible, and are currently being investigated. A final analysis of the measurement phase will occur in 2007. The building's high energy requirements and the system technology make it necessary above all to facilitate and optimise the dynamic operation of the entire system. This is also confirmed by the monitoring results. Despite comprehensive communication and documentation, it was initially necessary to adapt numerous operational processes to suit the requirements. Also of significance, is that a building with good thermal insulation can exhibit very high tolerances regarding deviations in systems operation, without comfort being reduced.

The result is higher energy consumption which is not initially noticeable.
The school has very good technical equipment, and in conjunction with the sophisticated system technology, which makes correspondingly complex measurement and optimisation measures necessary, the concept cannot easily be transferred to other school buildings.