District Heating Heat Pumps
If your network needs to move away from fossil fuels, a heat pump for district heating is the most effective solution. We design and manufacture district heating heat pumps in Denmark, delivering high temperatures at scale with natural refrigerants as the driving force.
That means high efficiency, capacity that scales to your network, and equipment built for a long service life.
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Number of HC heat pump units we have sold since 2018
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The flow temperature our heat pumps can handle.
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The total amount of MW we have delivered – distributed across 150+ units
How efficient is a heat pump for district heating?
A heat pump for district heating delivers up to four times more heat energy than the electricity it uses. That is an efficiency traditional boiler plants cannot match. It draws thermal energy from air, water or industrial waste heat and upgrades it to the temperature your distribution network requires.
This efficiency comes partly from the fact that we exclusively use natural HydroCarbon refrigerants, which perform just as well as synthetic alternatives, but with a significantly lower climate impact.
Solutions
AWB – air/water brine
Designed for flexible installation and low-complexity district heating. With a brine air cooler and the option for installation by local plumbers, AWB provides maximum freedom in project design and system operation.
AWD – air/water direct
Designed for optimal efficiency and effective district heating. Direct evaporation of refrigerant ensures high efficiency and low energy loss – perfect for modern district heating projects.
LWB – water/water
Designed for all temperature levels and easy integration. A versatile solution for both water and brine that is adapted to the project and installed by your local professionals.
LWC – combi
Designed for year-round operation with heating, cooling, and recovery. One system, three functions: winter heating, summer cooling, and heat recovery during the spring and autumn transition periods – intelligent and sustainable.
ALW - combi
Designed for year-round comfort and capacity. A combined heating and cooling solution that balances energy and comfort through every season.
What capacities do district heating heat pumps deliver?
Our district heating heat pumps deliver capacities from 200 kW to 4,800 kW, and the modular design means capacity can be scaled precisely to match your network's needs, without oversizing the system.
If your processes require higher flow temperatures, our high temperature heat pump, which reaches up to 165°C, is developed for exactly that purpose.
Should your network need more than 4,800 kW from a single unit, we combine multiple heat pumps through our XLX platform, so total capacity matches demand without a fixed upper limit.
Points of strength
Reliable design
Flow up to 165°C
Intelligent monitoring
Natural refrigerants
Plug & play
Possibility of FAT testing at the factory
Quiet operation
Competitive Capex and Opex
How do district heating pumps ensure stable and efficient operation?
Our systems ensure stable operation through intelligent remote monitoring, letting you track performance in real time, catch issues early and often resolve them without sending a technician to site.
This monitoring also makes it possible to run the system when electricity prices are lowest, without compromising supply security.
We support operation with five-year service and maintenance agreements that protect your investment throughout the system's lifetime.
How does a district heating heat pump use industrial heat waste?
A district heating heat pump can capture waste heat from industrial processes and upgrade it to the temperature your network requires, instead of letting it go to waste.
That makes it a natural industrial heat pump, where waste heat from a single process can supply the local network with heat.
Our LWC Combi and ALW Combi solutions are built specifically for this task, delivering heating in winter, cooling in summer and heat recovery in spring and autumn from the same unit.
Find the right heat pump
Our team of heat pump specialists knows the technical requirements for district heating and commercial heat pumps from every angle and is happy to help you find the right capacity, temperature, and operating mode for your specific project.
Reach out to us for a non-binding discussion about your specific network, and we will find the best solution together.
Frequently asked questions
Installation of a district heating heat pump follows a plug-and-play principle, and you can carry out Factory Acceptance Testing at our facility in Denmark before the system is shipped. The unit is also among the quietest on the market, giving you the freedom to place it close to residential areas.
District heating heat pumps can typically be integrated into existing networks, whether they are supplementing current capacity, replacing older boilers or forming part of an entirely new distribution system. Integration usually requires mapping flow temperature, pressure conditions and return temperature in the existing network before selecting the right solution. We advise you throughout the entire process, from mapping to commissioning.
A district heating heat pump typically has a technical lifespan of several decades, provided it is maintained according to a fixed service plan. A design that allows components to be replaced individually also means the system can last longer than solutions where the entire system must be replaced when just one part wears out.
Natural refrigerants such as HydroCarbon are chosen because the EU's F-gas Regulation is gradually phasing out synthetic refrigerants with a high climate impact. At the same time, natural refrigerants perform just as efficiently as synthetic alternatives, even at the high flow temperatures district heating requires, making them a future-proof choice for the sector.
Case studies
Green heat in Karup: When a heat pump does more than just heat
With Solid Energy's heat pump, Karup Varmeværk has built a unique plant that supplies 75% of heat from green energy sources, secures the supply and makes it possible to adjust the production of heat in relation to energy prices. During the months when the local potato flour factory is in production the heat pump uses waste heat and provides the factory with chilled water.
Read case study.webp)
10.3 MW delivered to Galten Heating Plant
Galten Varmeværk has reduced its reliance on wood chips with two air-to-water plants supplied and installed by Solid Energy. An investment that helps reduce energy consumption and CO2 emissions and supports a stable heating price over time.
Read case study%20(1).webp)
Heat pumps in place in Nordenskov
Christmas has not put work on pause in Nordenskov. Quite the opposite. Over the past few weeks, the heat pumps have been delivered and placed in Helle Energi's building.
Read case study
Award-winning innovation
Solid Energy's heat pumps have recently been honored at the H&VNEWS AWARDS 2024, where an enthusiastic judging committee was able to conclude:
“This versatile product ticked all the boxes in the judging criteria and showed innovation at its best, with a clearly defined objective, and demonstrable benefits.”
