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Aquathermally heated medieval castle
Castle de Merode in Westerlo now uses a 50 kW water-to-water heat pump connected to a closed-loop exchanger in its moat. The system operates in hybrid mode with the existing gas boiler and CHP, reducing reliance on fossil fuels while showcasing aquathermal energy use in a historic building
Utilitas District Heating in Tallinn
In Tallinn, biomass CHP plants supply district heating, but much energy remains in flue gases. A two-stage economizer recovers 18 MW from the flue gas, and four heat pumps use 6 MW electricity to deliver 24 MW of heat to the 80 °C network, boosting efficiency.
Smart Saving contract for heat pumps
In autumn 2024, Finnish electricity company Väre launched Smart Heating with Kapacity.io, enabling heat pump owners to optimize energy use. Customer insights led to the Smart Savings Contract, combining a fixed-price electricity plan with smart heat pump control, set to launch in August 2025.
Heat Pumps in Historical Buildings HP4HB
In response to Austria’s reliance on Russian gas, a building replaced its gas boiler with heat pump Monoblock units. The system, installed on a specially insulated and protected base, has been successfully operating for over two heating seasons, with ongoing noise reduction improvements.
Greening the Goods: Decarbonization with High Efficient Water Sourced Heat Pump
Between 2023–2024, Vestel’s white goods factory in Manisa, Türkiye, installed the country’s largest industrial-scale heat pump, recovering waste heat from air compressor cooling to supply heating. The system reduces reliance on natural gas, lowers energy costs and emissions, and simultaneously
Infomaniak Data Centre in Geneva Integrates Trane Heat Pumps for Large-Scale Heat Recovery
Infomaniak’s eco-district data centre in Geneva uses Trane® XStream™ RTWF heat pumps to recover waste heat from 10,000 servers and supply it to the district heating network, covering up to 6,000 homes or 20,000 daily showers. The system avoids 3,600–5,500 tCO₂eq annually, reduces heavy transport
Decarbonising industry with hybrid heat pump systems – NIBE-BIAWAR
Three independent heating and cooling systems based on cascades of air-source and ground-source heat pumps supply a production and office complex with a total area exceeding 30,000 m².The systems combine ground and air heat sources that activate depending on the conditions of the ground source.
Turning fishmeal waste heat into green process energy
Pelagia’s fishmeal factory in Måløy, Norway, installed three high-temperature heat pumps in 2024 that supply up to 8 tons of steam per hour with a COP of 3.5–7. The system replaces fossil steam, cuts CO₂ emissions by 4,000 tons annually, and showcases the technical feasibility of electrifying
DNV(Det norske Veritas)Head Office
4,3MW heat och 9MW cooling(mainly free cooling) but also process cooling Only natural ref. 100% (R290) Get rid of the boilers using oil High redundancy, many units
Making heat pumps attractive in education
The shortage of skilled labour and the lack of attractiveness of service technician jobs for young people will result in a reduction in the quality
Geothermal Heat Storage and Heat PumpSystem
An innovative geothermal heat well storage and heat pump system has been commissioned at Lounavoima’s Waste-to-Energy (WtE)