Playful communication of both history and technology

The clean water tank will house a phosphorus purification plant for use in heat production, while a play and recreation area will be created on the tank's surface. Here you can experience both the area's historical function as a waterworks and its new heat-producing and rainwater-handling function - for example, using water pipes in the design of tables and benches.
A basin covering most of the lake's area will also be created around the clean water tank's seating area, to hold 5,500 m3 of rainwater. The basin will purify rainwater from the catchment area, which is separately drained, before it is discharged into Lake Nørresø, so that in future the lake works will contribute to urban life, energy supply and water quality, while at the same time strengthening the historical narrative.

"At Energi Viborg Vand, we have a need for a technical solution that cleans the area's rainwater before it flows into Nørresø, and we know from a number of projects that water can be valuable when it comes to designing exciting urban spaces. That's why it's very satisfying that we've got together with Søværket to develop some dual functions, such as bridges that also act as sand traps and water intakes for a heat pump. In this way, we use the water in a way that creates value for the area," says Flemming Hermann, head of Energi Viborg Vand A/S.
The project is a multidisciplinary collaboration between Energi Viborg Vand A/S, Viborg Varme, Viborg Municipality and C.F. Møller Architects. Parts of the plant are planned to be operational in the last half of 2023, while the final completion with public access is expected in 2024.