EWB / Construction of Substation - Waste Incineration Plant Forsthaus West

The waste incineration plant Forsthaus in Bern was newly erected. The new plant has a wood, gas and steam combined power plant and produces district heating and electricity. The power produced in the plant is fed into the network via Forsthaus West Waste Incineration Plant Substation with 4-field, gas-insulated switch gear (132 kV), 3 transformers (60, 40 and 25 MVA) and cables via Holligen Substation.

Main Data

Waste incineration plant with heat and power production, water-cooled transformers. Technical room with control & instrumentation.

  • GIS and control room (WxDxH): 7.6x9.0x12.5 m
  • Transformer tray (WxDxH): 7.6x9.0x11.7 m
  • Cable vault (H): 2.5 m
  • Voltage: 132 kV / 10 kV
  • Max. capacity: 60 / 40 / 25 MVA


Energie Wasser Bern (EWB) (Bern Power and Water Utility)


IUB Engineering Ltd.

Construction period


Construction costs

CHF 5,500,000

Scope of services

Planning and coordination with construction, tendering, planning and construction services, construction supervision and completion for the following components of the technical equipment:

  • Switchgear GIS 132 kV
  • 2 power transformers 132 / 10 kV; OFWF; 60 MVA and 40 MVA
  • 1 standard power transformer 25 MVA
  • Protection and equipment control system
  • Earthing concept
  • Cable system 132 kV
  • Floor covering transformer trays
  • Extinguishing system transformer room