Sigtuna Stadsängar energy center

A stone's throw from Sweden's oldest city, Sigtuna, lies Sigtuna Stadsängar. It is a new district that is reminiscent of the old Sigtuna in terms of scale and spatial richness, and which has a strong focus on sustainability. Here you will find the Sigtuna Stadsängar energy center, which supplies heat to about 850 homes. The center combines solar power and geothermal heat, and if necessary, peaks heat production with a bio-oil boiler. The plant is at the absolute forefront of local energy production.

The energy center consists of three buildings: a single-storey heating plant, a storage tank and a chimney for the bio-oil boiler. The buildings are linked together by a plank - and not least by the bright red color.

The design of the energy center has been inspired by the traditional Swedish red farm buildings found in the surrounding landscape, such as the barn, the shed, the haystack, the cellar. However, the wood paneling has been given a more contemporary expression and transformed into a trellis that creates a shadow play on the underlying facade. The trellis is reminiscent of a sparse barn panel through which the sun seeps in.

The facade is divided into three horizontal bands, the lower one consisting of concrete elements clad with trellis, the middle band is a dense panel divided into cassettes. The facade of the upper band is an open trellis that hides the refrigerant coolers on the roof. The windows and doors are in the same red color as the rest of the building.

The accumulator tank and the chimney of the bio-oil boiler are made of steel and have been painted the same shade of red as the other buildings. The deck connecting the buildings is also designed in the same trellis as the energy center and is also painted in fake red.