- Solid Energy have produced heat pumps capable of reaching 170°C
- The modules vary from 200 kW to 1.2 MW in power output
- It also announced the XL4 heat pump model for high output in limited space
Heat pump manufacturer Solid Energy unveiled an upgrade of its ultra-high temperature modular hydrocarbon heat pump range, which includes a choice of four refrigerants, for UK households last week at a London launch event hosted by the Danish Embassy.
Its new heat pump models aim to reach flow temperatures of 170°C, as well as being able to provide cooling where required.
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The Danish company, established in 2003, according to Ken Kneale, business unit director for the UK & Ireland, Solid Energy, has a goal to build market-leading heat pumps that “create value and accelerate the sustainable transformation of the world’s energy systems.”
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The ultra-high temperature heat pumps are expected to be used for industrial process heat applications in factories, food processing plants and distilleries. Although considerably larger in capabilities, the commercial units use the same compressor technology as found in Solid Energy’s domestic heat pumps.
Kneale said that every Solid Energy heat pump is designed to the specific needs of individual projects.
“Using our advanced performance calculator, we can select the appropriate compressor size,” Kneale explained.
“Depending on the operating temperature we then select the hydrocarbon refrigerants to be used.”
Customers can expect a choice of four hydrocarbon refrigerants, including:
Propane
- Use: Refrigeration and operation for heating purposes.
- Cooling range: -30°C to 25°C
- Heat output: 30°C to 65°C
Isobutane
- Use: Heat recovery and operation for district heating and industrial process heating
- Cooling range: -10°C to 40°C
- Heat rejection: 50°C to 95°C
Butane
- Use: Heat recovery and operation for industrial process heating and hot water
- Cooling range: 0°C to 50°C
- Heat output: 70°C to 120°C
Isopentane
- Use: Heat recovery and operation for industrial process steam and hot water
- Cooling range: 35°C to 90°C
- Heat output: 90°C to 170°C
Kneale said the design flexibility allows the company to implement “multiple compressors using the same refrigerant or to select a combination of different refrigerants”.
“This ensures that we can achieve the desired flow temperature while maximising the coefficient of performance (COP).”
The modules, designed and built in Denmark, vary from 200 kW to 1.2 MW and can be linked for an increase in capacity while being handled as one system.
The screw compressors are semi-hermetic – stored in noise-reducing cabinets that can be opened for servicing – and boast a 100,000 hour lifespan with minimal maintenance required, no oil changes, and quiet operation.
As well as celebrating its ultra-high temperature modular hydrocarbon heat pump range, the XL4 heat pump model was also introduced at the embassy event. XL4 is designed for projects that require a high output with limited floor space.
Kneale said that the XL4 was of the same high standard of efficiency as the “one compressor modular units, with the benefits of needing less space and greatly reduced installation costs.”
As of 2025, it has delivered over 100 MW of clean energy across 150+ units and is one of many companies with a focus on meeting global net zero targets. It also focuses on wind power and has installed 1,000 small wind turbines across 14 countries.
The heat pumps are delivered to the UK consumers fully factory tested and compliant with UK and European safety standards, including integrated refrigerant leak detection and ATEX compliant ventilation.
Solid Energy is working in collaboration with Pure Renewables, a renewable energy solutions company based in Hull, which is offering their expertise in sales, installation, commissioning and after-sales services.
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