The company esotec GmbH is the owner company of the hotel Grimsel Passhöhe.

about esotec GmbH

High alpine nature is a magical world that enchants more and more people. Today, many SAC huts and mountain houses offer their guests modern comforts and this despite the fact that they are far away from electricity and water supply. This is where our passion begins.


We build the appropriate, autonomous energy supply for SAC huts and mountain houses from various elements: photovoltaics, solar heat, small hydroelectric power, drinking water supply as well as sewage and faeces disposal.

Logo Esotec


Esotec Energietechnik GmbH
Gewerbestrasse 8
3862 Innertkirchen
+41 33 971 60 35