EnAlpin AG has been operating a district heating in Saas-Fee since 2015, enabling residents in the glacier village to heat their homes in a sustainable way and to save tons of CO₂. With the drilling of another 100 geothermal probes, generation is now also being expanded to ensure the security of supply of the district heating. For the Saas-Fee district heating, EnAlpin AG relies entirely on renewable energies: The centrepiece is the heat pump in the technical control centre near the multi-storey car park. This extracts heat from the ambient air with photovoltaic electricity produced in-house (especially in summer) and supplies it to the connected properties for heating and hot water production. The excess summer heat is stored in the geothermal probes in the rock below the multi-storey car park. The district heating draws on this reservoir in winter, when the glacier village needs a lot of heating.

CONSTRUCTION SITE:
Expansion of the Saas-Fee district heating
3906 Saas-Fee

PRODUCTS USED:
Stage 2 (2022)

• 99 units GEROtherm^® DUPLEX 40 mm geothermal probes PN16 made of PE 100RC, length 150 metres
• 99 units GEROtherm^® 25 mm grouting tubes made of PE-HD, length 152 metres$99 units GEROtherm^® initial weight 19 kg
• GEROtherm^® 50 mm connection pipes PE100-RC, PN16
• Type f4 GEROtherm^® manhole with 99 connections incl. integrated stainless steel ladder
  Outside diameter 2145 mm, length 8281 mm
  Main outlets 225 mm, total weight 6015 kg
  incl. built-in collector and distributor
  Two SAVE 250 units with 49 connections
  Two SAVE 250 units with 50 connections
  with Hyline Setter regulating valves and
  four thermo-manometers