Heat source
Thermal energy is extracted from the water flow.
DEEN
Energy from water infrastructure
Heat from water.
Modular heat pump systems for waterworks.
Water2Heat unlocks the thermal energy contained in existing water infrastructure for efficient, local heat supply.
50–500 kWthermal
Modular &
scalable
scalable
Purchase or
contracting
contracting
System platformWater2Heat
Visualisation of the Water2Heat system solutionOperating principle
From drinking water to useful heat.
Heat exchanger
A separate intermediate circuit isolates the drinking water from the heat pump system.
Heat pump
The heat pump raises the energy to the required temperature level.
Heat supply
The heat generated supplies the waterworks or associated buildings.
50–500 kWthermal capacity
The system solution
One system.
Different capacities.
The containerised platform is designed for the required thermal capacity and the conditions on site. Prefabricated, modular and built for integration into existing infrastructure.
- Modular design
- Scalable
- Prefabricated system solution
- Integration into existing infrastructure
Why Water2Heat
Developed for the water sector.
Focus on drinking water
Drinking water quality comes first.
Water2Heat addresses the specific requirements of drinking water infrastructure from the outset. System separation and plant monitoring protect drinking water quality and are an integral part of the system architecture.
Cost-effective
9–14 ct/kWh
Levelised cost of heat under suitable project conditions.*
Efficient
SPF up to 5
Up to 5 kWh of heat from 1 kWh of electricity at a 50 °C flow temperature.*
Fast installation
< 1 month installation time
Thanks to prefabricated system modules – for minimal disruption to ongoing operations.*
Sustainable
Renewable heat for waterworks
Environmental heat from water combined with renewable electricity.
* Project-specific design and target values. Actual efficiency, levelised cost of heat and installation time depend in particular on location, temperature level, system design and operating conditions.
Operating models
Flexible operating models.
Purchase and ownership
- Planning
- System delivery
- Integration
- Commissioning
Heat as a service
Water2Heat can develop contracting models in which investment and operation are structured as a heat supply agreement.
Discuss contracting optionsDevelopment
From research to application.
From international research to a scalable system solution for waterworks.
1
Research
Research on thermal energy from drinking water infrastructure
2
Transfer
Expert exchange at national and European levels
3
Implementation
Co-planning of the first German pilot plant · customised system solution · 50 kW · 2026
4
Water2Heat
Development of a standardised, modular product solution · 50–500 kW
Ruven Stünkel
Initiator of Water2Heat
Engineer & researcher in aquathermal energy systems
Project enquiry
What is the thermal potential of your waterworks?
Together, we assess whether your existing water infrastructure can be used for efficient, local heat supply.
We are also open to innovative pilot and development projects in aquathermal energy – from heat recovery from wastewater and surface water to seasonal heat storage in aquifers.