World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom

Products

Keep up-to-date with the latest new products and technology

Features

General articles, applications and industry analysis

Engie CO2 heat pump in EU heat recovery project

GERMANY: Engie Refrigeration’s CO2 heat pump is to play its part in a ground-breaking EU pilot programme on heat recovery.

A Thermeco2 heat pump will be installed at BS Energy, an energy supplier in Braunschweig, as part of the ReUseHeat pilot programme of the European Union. 

Launched in 2017 for a four-year period, ReUseHeat will showcase replicable models enabling the recovery and reuse of excess heat available at urban level, with the aim to increase energy efficiency of district heating and cooling systems in cities across Europe.

The Braunschweig project in centred in the new Heinrich der Löwe district, which is currently being developed on the grounds of a former barracks. Around 600 living units will be supplied with waste heat from a nearby data centre. This makes it possible to create a low-temperature heat network, which is also being set up at present. Three other demonstration projects are being carried out in Madrid, Nice and Berlin.

Engie acquired the CO2 high temperature heat pump unit from the insolvency assets of Hafner-Muschler Kälte- und Klimatechnik last year. Its ThermecoHHR 360 CO2 high temperature heat pump will be deployed in the Braunschweig residential area. It will use cooling water from the data centre with a temperature of 25ºC to create hot water with a temperature of 70ºC. This generates a heating capacity of 370kW, which is then fed into the local heating network of the new city district. 

In order to meet increased heat requirements in winter, the local heating network will also be connected to BS Energy’s existing district heating network. In the summer months, the data centre will receive additional cooling.

The heat pump was delivered at the end of March, with Engie Refrigeration also being responsible for its maintenance in the coming years. During the first few months, the residential estate will be supplied from the district heat connection. Integration of the data centre will take place during the year, so that it will be possible to use waste heat for heating purposes from next winter. The project will run until the end of 2021. Afterwards, all four demonstration projects from Braunschweig, Madrid, Nice and Berlin will be analysed and evaluated, and the results will be published by the EU in a final report.

Related stories:

Engie acquires Thermea brand2 July 2018
GERMANY: Engie Refrigeration has acquired the CO2 high temperature heat pump business of Hafner-Muschler Kälte- und Klimatechnik from the administrator. Read more…

Latest News

13th July 2026

R290 heat pump recalled due to safety concerns

FRANCE: An R290 monobloc heat pump is the subject of a recall in France due to fire or explosion concerns in the event of a refrigerant leak. 
12th July 2026

Carel acquires Danish dehumidification business

ITALY/DENMARK: Carel Industries has completed the €56.1m acquisition of Danish company Cotes, a supplier of adsorption dehumidification solutions. 
12th July 2026

Latest New York LD outbreak infects 56

USA: The Guggenheim Museum is one of 31 buildings with cooling towers that tested positive for the presence of legionella bacteria during New York City’s latest legionnaire’s disease outbreak. The outbreak in…
12th July 2026

MHI improves data centre cooling efficiency

JAPAN: Mitsubishi Heavy Industries claims to have demonstrated measurable improvement in data centre cooling energy consumption while maintaining stable operation. 
11th July 2026

EC calls on Greece to comply with F-gas regs

EUROPE: The European Commission has opened an infringement procedure against Greece for failing to comply with the F-gas regulations requiring mutual recognition of engineers’ F-gas certificates. Article 10(10) of the…
11th July 2026

Daikin collaborates on AC recycling

JAPAN: Daikin has entered into an agreement with Itochu Corporation to improve the recycling of commercial air conditioners and expand the use of recycled materials.