Design and build contract for the design, delivery, erection and commissioning of a high-performance industrial heat pump with a capacity of 50 MW for the city of Gothenburg.
Location:
Gothenburg, Sweden
Build time:
2026
Client:
Göteborg Energi AB
Large heat pump
Design and build contract for design, delivery, erection and commissioning of a heat pump in Gothenburg, Sweden, using sewerage water as heat source
This turnkey installation of a 50 MW industrial heat pump system for Göteborg Energi AB will feed heat into Gothenburg’s district heating network and will be capable of supplying district heating to up to 15,000 households. It will be installed in the existing Rya heating plant in Hisingen near Gothenburg and will replace the two older and smaller modules with one new turnkey 50 MW heat pump module, comprising a turbocompressor from Atlas Copco. The heat source will be wastewater from the neighboring wastewater treatment plant with a temperature of at least 10°C even in winter. As a result, every megawatt of electricity used for the heat pump supplies more than three and a half megawatts of district heating at 90°C in the winter.
The new heat pump uses a natural refrigerant (Isobutane) with a low global warming potential of only 3 and an ozone depletion potential of 0, thus with low climate impact according to the German Environment Agency.
The scope of works include:
The scope of work covers the complete engineering and implementation of a high-performance 50 MWth heat pump system designed for industrial applications. This includes detailed engineering and application design to ensure maximum efficiency, reliability, and seamless integration into existing infrastructure.
At the core of the project is a 50 MWth heat pump module equipped with a four-stage turbocompressor, delivering high thermal output and optimized energy performance. The system also includes advanced electrical control and automation technology, ensuring precise operation, monitoring, and energy management.
In addition, the project provides a dedicated refrigerant storage tank designed to meet safety and operational standards. The scope further includes the modification and adaptation of existing buildings, enabling smooth installation and integration of the heat pump system into the current facility.
This comprehensive approach ensures a turnkey industrial heat pump solution that combines engineering expertise, energy efficiency, and long-term operational reliability.