Energy and heat transition:
pushing climate-friendly residential heating
From 2027 onwards, several thousand residential units per year are to be equipped with highly efficient air-to-air heat pumps.
In March 2023, LEG Immobilien SE entered into a strategic partnership with Mitsubishi Electric to actively promote the energy and heat transition in the housing industry. The aim is to replace existing decentralised gas heating appliances with the innovative air-to-air heat pump technology as a matter of priority. After an initial phase, the goal is to install several thousand heat pumps per year in LEG Immobilien SE's existing buildings from 2027 onwards.
In order to achieve this, LEG founded the joint venture dekarbo° together with Soeffing Kälte Klima GmbH in September 2023.
dekarbo° offers a total solution consisting of an air-to-air heat pump installation including a hot water solution and subsequent system support over the entire life cycle for each flat. The installation takes only one to two days per flat, after which the tenants are introduced to the user-friendly technology.
With air-to-air heat pumps, CO2 emissions can be reduced by 100 percent when using green electricity. The experience gained from their use in the LEG portfolio is collected and offered as a solution concept to the entire housing market.
In contrast to central air-to-water heat pumps, for example, there is no need to centralize the supply infrastructure and lay a line at high cost. In addition, installation is quick and uncomplicated, even in occupied buildings. Comparatively, a higher efficiency and thus lower costs for the tenants are also achievable.
Cooperation agreed
Partnership with Mitsubishi Electric
Cooperation agreed
Partnership with Mitsubishi Electric
With more than 100 years of experience, Mitsubishi Electric is a recognized global leader in the manufacture, marketing and sale of electrical and electronic equipment for information processing and communications, space development and satellite communications, consumer electronics, industrial technology, energy, mobility and building technology, and heating, cooling and air conditioning technology. The European headquarters of the Japanese company is in Ratingen/NRW.
von LEG und Soeffing
Gemeinschaftsunternehmen dekarbo°
von LEG und Soeffing
Gemeinschaftsunternehmen dekarbo°
The Düsseldorf-based company Soeffing Kälte Klima GmbH is one of the regional market leaders in refrigeration and air-conditioning technology - founded more than 100 years ago and currently employing more than 100 people. Soeffing has always been strong in training and is well networked locally with guilds, chambers and regionally as well as supra-regionally (via Temtec Kälte-Klima GmbH). The company's technological orientation is particularly evident in its many years of experience in the use of natural refrigerants, especially for the food retail trade. The joint venture decarbo° offers a good solution for rapid decarbonisation and CO2 reduction with low costs and high efficiency.
Key data on the LEG Air-to-Heat campaign
- Potential (replacement of gas floor heating systems)
- 4 Mio. apartments nationwide
- 20,000 apartments of LEG
- CO2-savings
of 2,8 t per residential unit per year - High efficiency
of approx. 1:4 (1 kWh of energy generally generates 4 kWh of heating power) - Well proven technology
(e.g. in Scandinavia) in commercial, hotel and residential applications - Investment savings
LEG total by 2030: around 500 million euros - Neutral in terms of warm rents
with proper handling for residents with better living quality (cooling in summer; air-cleaning)
