Here you can find the frequently asked questions and answers regarding the installation of thermal energy storage wells on the north side of the campus (from 20 April 2026) and the temporary closure of the north-east campus entrance (from 15 June to 10 November 2026).
Closed entrance and diversion route
From week 25 to week 46, i.e. from 15 June to 10 November 2026.
We are installing two thermal energy storage sources near the entrance to provide the Tinbergen Building with sustainable and reliable geothermal energy following its renovation. The cycle and footpath falls within the area where the works are taking place. We cannot relocate the path because the construction access road must remain accessible for the renovation of the Tinbergen Building.
During the closure, cyclists and pedestrians will not be able to enter or leave the campus via the northern entrance on Kralingse Zoom (near the F and G Buildings). A diversion has been put in place via Erasmus Plaza.
The closure and diversion are signposted with deviation signs and a traffic warden.
You can reach the University Library by taking a diversion via Kralingse Zoom and Erasmus Plaza, then walking or cycling past E Building and G Building. Alternatively, you can reach the University Library via Theil Building.

You can reach the exam centre by taking a detour via Kralingse Zoom and Erasmus Plaza, then past E Building to the Exam Centre.
Allow for extra travel time and leave early!

Yes, construction vehicles and suppliers using the construction road will be able to continue doing so during the work and afterwards.
Yes, it is.
Geothermal Energy Storage construction work
We are installing two thermal energy storage sources near the entrance to provide the Tinbergen Building with sustainable and reliable geothermal energy following its renovation. The cycle and footpath falls within the area where the works are taking place. We cannot relocate the path because the construction access road must remain accessible for the renovation of the Tinbergen Building.
From week 25 to week 45, i.e. from 15 June to 10 November 2026.
Weeks 17 to 45, i.e. from 20 April to 10 November 2026.
A thermal energy storage system (WKO) is an energy system that stores heat and cold in the ground to cool and heat a building in a highly energy-efficient and reliable manner. Such a system can save up to 80% in energy. This makes a significant contribution to a more sustainable campus. Find out how an open thermal energy storage system like the one for the Tinbergen Building works: Bodemenergie, doe je mee?
These buildings are already connected to thermal energy storage sources:
Erasmus Pavilion (including the 1st floor of the Hatta Building);
University Library;
Polak Building;
Sanders Building;
Erasmus Sport (new build);
Langeveld Building;
Theil Building.
We expect little to no noise or vibration nuisance from these works.
The greenery that needs to be moved for the works will be restored afterwards. The artworks are outside the construction area.
The work area is just outside the campus garden. In consultation with the beekeeper, the beehives will be moved to another location on campus. Once the works are complete, all the greenery will be restored.
Further information
Do you have any questions or comments regarding this message? Please contact the Service Desk at servicedesk@eur.nl or on 010 408 88 80.