Case Study: Stadtwerke Flensburg achieves lower district heating temperatures for more efficient heat pumps with Gradyent

Flensburg Stadtwerke low temperatures for efficient heat pumps

Stadtwerke Flensburg, a public utility supplying heat to the city, faced the challenge of decarbonizing its district heating network by 2035. A key part of their plan involved integrating heat pumps, which required lowering the system's temperatures. To achieve this, they partnered with Gradyent to build a Digital Twin of their network and simulate temperature reduction scenarios.

Gradyent created a Digital Twin that modeled the entire heating system. This tool enabled the utility to develop and test ten transformation scenarios, which successfully reduced the annual proportion of heat transported above 95°C from around 10% down to just 1%. This significant temperature reduction allows for more efficient operation of heat pumps and is a major step towards the customer's decarbonization goals.

Stadtwerke Flensburg

Thomas Räther

Head of Networks