Commercial Ground Source Heat Pumps
Commercial ground source heat pumps give district heating companies and industrial businesses access to stable, renewable heat – independent of fuel prices, weather, and fluctuating energy markets. The technology draws on the earth's natural heat as an energy source, delivering reliable operation year-round.
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Number of HC heat pump units we've sold since 2018
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The flow temperature our heat pumps can handle
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Total MW delivered – spread across 150+ units
Why do businesses choose ground source technology?
Businesses choose ground source technology because stable underground temperatures reduce operating costs directly. As carbon regulation tightens, facilities running on renewable energy hold a structural advantage over competitors still dependent on fossil fuels.
Our commercial heat pumps have been deployed across district heating and food processing – wherever precise temperature control and dual-function operation create real operational value.
Solutions
AWB — air/water brine
Designed for flexible installation and district heating with low complexity. With brine coolers for simple and straight forward installation and the possibility of installing local plumbing, AWB provides maximum freedom in project design and plant operation.
AWD — Air/Water Direct
Designed for optimum efficiency and efficient 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, adapted to the project and installed by your local professionals.
LWC — combi
Designed for year-round operation with heating, cooling and recycling. One plant, three functions: winter heating, summer cooling and heat recovery in the spring and autumn seasons — intelligent and sustainable.
ALW - combi
Designed for comfort and capacity all year round. A combined heating and cooling solution that balances energy and comfort throughout all seasons.
What is a commercial ground source heat pump?
A commercial ground source heat pump transfers heat from underground into your heating system. Unlike air source systems that rely on fluctuating outdoor temperatures, ground source technology draws on consistent underground conditions of typically 10-15°C year-round, so efficiency stays stable regardless of season or climate.
At Solid Energy, our heat pumps handle flow temperatures up to 150°C. The high temperature heat pump reaches up to 165°C, making it suitable for everything from smaller commercial facilities to large district heating projects.
How do commercial ground source heat pumps work in practice?
The heat pumps are built around 100% natural refrigerants – hydrocarbon-based compounds with very low global warming potential that also contribute to system efficiency.
The modular design means capacity scales with your operation. A system configured for today's demand can be expanded without full replacement, and our plug-and-play approach keeps site downtime to a minimum. Factory acceptance testing lets you verify performance before equipment leaves Denmark.
Intelligent monitoring is built in as standard, giving you real-time visibility into system performance and the flexibility to adjust output based on energy prices.
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
Ground source heat pumps in practice
Two installations from Denmark illustrate what the technology delivers.
At the geothermal plant in Skejby, our heat pumps play a central role in supplying sustainable district heating to Denmark's second-largest city, drawing on energy from the earth's interior.
In Karup, our industrial heat pump supplies 75% of the district's heat from renewable energy sources while simultaneously providing a local potato flour factory with cooling water during production months.
Is a commercial ground source heat pump right for your project?
Ground source technology performs best where there is adequate land for ground loop installation and consistent year-round heating demand. High energy consumption and the ability to utilise both heating and cooling functions help reduce the payback period.
If your site has limited space or requires rapid deployment, air source solutions may be more practical. For projects where long-term efficiency, low maintenance, and sustainability are the priority, a commercial geothermal heat pump is the clear choice.
Frequently asked questions
How does ground source technology differ from air source heat pumps?
A ground source system draws heat from stable underground temperatures rather than from outdoor air, so efficiency does not drop during cold weather the way it does with air source systems.
This makes it a more reliable choice for continuous district heating and industrial applications.
What maintenance does a ground source heat pump require?
Ground source heat pumps are designed for stable, long-term operation with minimal need for unplanned service.
Our service and maintenance contracts typically run for five years and include regular monitoring of system performance, ensuring the installation runs optimally and that any deviations are identified early.
How is a ground source heat pump installed?
Installation is adapted to each project based on local geological conditions and the site's heating requirements.
The plug-and-play modular design keeps on-site installation time to a minimum, and factory acceptance testing ensures the system is verified and approved before it leaves Denmark.
Cases
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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.
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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.
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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.
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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.”
