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District heating system, Porrentruy, Canton of Jura

Since the first phase of the district heating system came into operation in 1999, over 200 properties have been connected.
Some 26,000 MWh of heating energy is now sold every year. The district heating plant is mainly fired by woodchips. Together with the peak-demand boilers, the system offers a capacity of 12 MW. The heat distribution network boasts a total length of 13,500 m, with a further extension planned for the coming years.


Gruner Gruneko AG
St. Jakobs-Strasse 199
4020 Basel
T +41 61 367 95 95
F +41 61 367 95 85
Contact Person
Andreas Schmid
T +41 61 367 94 70
Andreas Schmid Leiter Gebäudetechnik Gruner Gruneko AG