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Niederurnen

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: KVA Linth (Zweckverband für die Kehrichtverwertung im Linthgebiet, ZKL) · Operating · Data verified 08.10.2026

Permitted capacity
116 kt/a
Incineration lines
2
Commissioned
1984
Energy recovery
CHP

KVA Linth in Niederurnen (municipality of Glarus Nord) is owned by the Zweckverband für die Kehrichtverwertung im Linthgebiet. This association unites 28 municipalities in the cantons of Glarus, Schwyz and St. Gallen. The two-line plant treats up to about 116,000 tonnes of municipal, commercial and external market waste per year. In addition, it supplies electricity to the local grid and provides district heat. Under the CHF 198 million project ‘KVA Linth 2025’, Line 2 from 1984 is being replaced. Moreover, Line 1 from 2001 will be refurbished, with completion expected in 2029.

Technical data
Firing systemGrate
Thermal input52.4 MWth
Hourly capacity WtE Monitor+Available with WtE Monitor+
Waste calorific value WtE Monitor+Available with WtE Monitor+
Feedstockmunicipal solid waste, commercial and industrial waste, external market waste
Accepted waste types (EWC codes) WtE Monitor+Available with WtE Monitor+
Steam parameters 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 hours8,000 h/a
Flue gas cleaning WtE Monitor+Available with WtE Monitor+
Ownership WtE Monitor+Available with WtE Monitor+
Commissioning by line1984 (Line 2); 2001 (Line 1, replacing the original line of 1973)
Modernisation / expansion WtE Monitor+Available with WtE Monitor+
Projects in progressKVA Linth 2025 (CHF 198 million, groundbreaking January 2023, completion expected 2029): replacement of Line 2 (furnace and boiler, theoretical 90,000 t/a), refurbishment of Line 1, new flue gas cleaning for both lines, dry slag discharge, one new turbine group with air-cooled condenser replacing the two turbines, new bunker and cranes; net energy efficiency to rise from 50% to 73%, electricity sales to approx. 87,000 MWh/a; district heating network expansion (planned up to 40 MW)
AddressIm Fennen 1a, 8867 Niederurnen

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