HotBENT under construction - onsite impressions


Excavation of the HotBENT Cavern (Mar - Apr 2020)

Excavation of the HotBENT Cavern (Mar - Apr 2020)

HotBENT Cavern  and DAS (data aquisition system) cabinet installation (Sep 2020)

End of gallery with cement liner  section and instrumented Section S2 (spider) and fibre optics (red cables on
concrete) (Oct 2020)

Transport of heater module towards experimental section (Oct 2020)

Heater #1 instrumented and partially backfilled with GBM (Nov 2020)

Auger backfilling machine over heater #2 (Dec 2020)

Backfilling of last part of Sector 1 (with augers, lower front part: retaining wall of Plug 1) (Dec 2020)

Completed retaining wall of Plug 1 (Dec 2020)


BShotcreting of Plug 1 (Feb 2021)


The GTS underground facilities are also available to interested 3rd parties for underground testing and research. The GTS offers cost-effective access to a fully developed, well characterised underground research facility with round the year logistical support - please contact Dr. Ingo Blechschmidt, Head of the Grimsel Test Site, for further details.