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Posieux

Ulm’s WtE Plant Charts Its Next Move
A long cloud of white smoke escaping from a metallic chimney against a deep blue sky.

Operator: SAIDEF SA · Operating · Data verified 08.10.2026

Permitted capacity
88 kt/a
Incineration lines
2
Commissioned
2001
Energy recovery
CHP

Saidef SA operates the Waste-to-Energy plant in Posieux (municipality of Hauterive). This plant has treated municipal and industrial waste from the canton of Fribourg and the Vaud Broye region since 2001. A separate sewage sludge incineration line was added in 2006. The plant sells its steam to Groupe E. Groupe E converts this steam into electricity and heat for the Fribourg district heating network.

Technical data
Waste calorific value WtE Monitor+Available with WtE Monitor+
Feedstockmunicipal solid waste, industrial and commercial waste, sewage sludge (separate line)
Accepted waste types (EWC codes) WtE Monitor+Available with WtE Monitor+
Electrical output WtE Monitor+Available with WtE Monitor+
Electricity generated WtE Monitor+Available with WtE Monitor+
District heat output WtE Monitor+Available with WtE Monitor+
Heat delivered WtE Monitor+Available with WtE Monitor+
District heat use WtE Monitor+Available with WtE Monitor+
Operating hours8,025 h/a
Flue gas cleaning WtE Monitor+Available with WtE Monitor+
Technology suppliers WtE Monitor+Available with WtE Monitor+
Ownership WtE Monitor+Available with WtE Monitor+
Commissioning by line2001 (waste incineration line, UIOM); 2006 (sewage sludge incineration line, IBS)
Modernisation / expansion WtE Monitor+Available with WtE Monitor+
Projects in progressreplacement of infrared combustion camera (2026); new waste-pit crane (commissioning planned 2027); corporate strategy 2025–2030 incl. 'usine 2.0' concept and decision on a possible new incineration line; studies on CO2 capture and phosphorus/zinc recovery
AddressRoute de Châtillon 70, 1725 Posieux

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