Spreitenbach expands Neumatt heating network
In Spreitenbach, work has begun on the expansion of the existing Neumatt heating network. A second furnace line is being built in the woodchip heating system. After completion, more heat consumers will be connected.
The local citizens’ municipality of Spreitenbach has awarded the contract for the installation of the second boiler for the Neumatt woodchip heating system. According to a media release, the work has started successfully. In the future, additional district heating pipes will be laid for the connection of private properties, which will lead to road breakages and may cause partial traffic obstructions, the statement said. The additional credit of 3 million Swiss francs for the realisation of the second furnace line was approved by the local citizens’ assembly on 22 November 2022.
The first stage of the Neumatt heating network was realised by Amstutz Holzenergie AG as overall planner and construction manager. The new heating centre in Spreitenbach is centrally located on the communal utility yard next to the Shoppi Tivoli shopping centre. The elongated post-and-beam building offers space for two woodchip boilers with an output of 550 and 1600 kilowatts, according to a statement by the company from Emmen LU. The large technical room contains two buffer storage tanks with a total volume of 57 cubic metres, which cover short-term peak loads and enable continuous operation of the combustion plant.
The long-distance network was 380 metres long in the first expansion stage. The woodchip heating system has been supplying heat since the beginning of October 2022 and heats the buildings in the vicinity that are already connected, such as the Werkhof itself as well as the Im Brühl retirement home and the new Spreitenbach community centre.
According to Amstutz Holzenergie, 1800 cubic metres of wood chips from the local forest are needed annually for the heating system. After the complete final expansion, the annual demand will rise to 5400 cubic metres of woodchips. This quantity is also to be covered by wood from the local forests.