From planning to performance
How large-scale heat pumps are transforming energy systems - insights from Everllence
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Decarbonizing heat where it matters most
Proven heat pump systems for real industrial and urban challenges
Industrial plants and district heating networks are under growing pressure to cut emissions, reduce fuel costs, and stay competitive. Yet in many sectors, the shift to clean heat still lacks proof at scale. That’s where Everllence comes in. Our large-scale heat pump system is already in operation — delivering high-temperature heat and steam from renewable sources, integrated into real-world environments, and built for demanding conditions. If you're planning the next step, we offer what the market needs most: working solutions, not more studies.
From powering 25,000 households to decarbonizing entire city grids — see how municipalities around the world are ditching fossil fuels and embracing clean, sea-sourced heat at scale.
From drying paper to steaming petrochemicals — discover how food producers, pulp mills, and chemical plants are turning waste heat into a competitive edge with Everllence mega heat pumps.
Real-world projects in cities
Heat pumps delivering impact for district heating
High-performance district heating for 48,000 households
With a total capacity of ~177 MWth, this is the largest seawater-based heat pump system ever built. Designed in partnership with Aalborg Forsyning, it uses four heat pump units to extract thermal energy from seawater and deliver clean, efficient heating to nearly 50,000 homes. The installation reduces emissions by 210,000 tons of CO₂ annually – setting a global benchmark for coastal district heating at scale.
Seamless integration into an existing district heating system
Cologne is home to Germany’s largest river water heat pump, drawing thermal energy from the Rhine to deliver ~150 MWth of heating for 50,000 homes. Everllence supplied a complete turnkey system for RheinEnergie — including three heat pump units and all supporting infrastructure. The result: 100,000 tons of CO₂ saved each year, and one of Europe’s leading references for clean, large-scale district heating.
Clean energy for 25,000 households – delivered by the sea
Esbjerg is home to the largest CO₂-based seawater heat pump currently in operation. Using seawater at 1–15 °C and natural CO₂ as refrigerant, the two-unit system delivers ~70 MWth of thermal output for district heating. Built in collaboration with DIN Forsyning, the installation avoids 120,000 tons of CO₂ annually and proves the feasibility of natural refrigerants at scale.
High performance, even in sub-zero temperatures
Everllence delivered the world’s largest air-to-water heat pump for Helen Oy in Helsinki. The single-unit CO₂-based system supplies ~33 MWth of heat for 30,000 households – operating reliably even in temperatures as low as –20 °C. With 26,000 tons of CO₂ saved annually, the project proves that ambient air can power resilient, emission-free energy systems, even in Nordic climates.
Clean steam – from river to district heating and industries
Boston is home to the first heat pump in the U.S. capable of producing ~200 °C steam for district energy and industrial applications. Drawing thermal energy from river water, the ~40 MWth system was developed for Kendall Green Energy to deliver thermal energy to a substantial share of Boston’s residential buildings, while simultaneously supplying high-pressure steam to university research facilities for industrial applications. Everllence delivered the technology behind this milestone – proving that high-temperature steam can be produced sustainably, without combustion.
Case highlight
Boston, USA: First mega heat pump to produce district steam in the U.S.
Clean steam – from river to district heating and industries
Boston is home to the first heat pump in the U.S. capable of producing ~200 °C steam for district energy and industrial applications. Drawing thermal energy from river water, the ~40 MWth system was developed for Kendall Green Energy to deliver thermal energy to a substantial share of Boston’s residential buildings, while simultaneously supplying high-pressure steam to university research facilities for industrial applications. Everllence delivered the technology behind this milestone – proving that high-temperature steam can be produced sustainably, without combustion.
Real-world projects in industries
Heat pumps delivering impact for industrial processes
Sustainable heating and cooling for tomorrow’s mobility
At Scout Motors’ new EV production plant, Everllence delivered a dual-mode heat pump solution providing ~25 MW of cooling and ~15 MW of heating. Powered by two five-stage compressors, the system meets year-round energy demands while cutting CO₂ emissions by over 1,300 metric tons annually. It’s a forward-thinking setup that shows how modern factories can combine performance with sustainability from day one.
Clean steam – from river to district heating and industries
Boston is home to the first heat pump in the U.S. capable of producing ~200 °C steam for district energy and industrial applications. Drawing thermal energy from river water, the ~40 MWth system was developed for Kendall Green Energy to deliver thermal energy to a substantial share of Boston’s residential buildings, while simultaneously supplying high-pressure steam to university research facilities for industrial applications. Everllence delivered the technology behind this milestone – proving that high-temperature steam can be produced sustainably, without combustion.
Mega heat pumps built for the next era of energy
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Whether you’re planning a retrofit or a new installation, our experts are here to help you find the right solution. Explore how our systems perform in real-world projects, discuss your specific requirements with us, and get tailored guidance for your decarbonization goals.