Intelligent building control using weather forecasts

Deka Immobilien relies on weather forecasts to improve energy efficiency. An intelligent building control system links meteorological data with building technology data and the current indoor climate. It then uses this to determine the ideal operating information for the building via a digital model. By 2022, around 100 Deka Immobilien buildings will be equipped with the smart data solution.


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“For a clear reduction of our portfolio’s energy consumption and CO2 emissions in the long term, we use intelligent, scalable solutions. MeteoViva is one such building block for Deka Immobilien to achieve our ambitious sustainability goals.”


Marcus Kohnke, Head of Monitoring and Governance



Using weather forecasts and a digital building model to optimise operations

In many buildings, unnecessary energy consumption occurs when technical systems are running, although the user does not need them at that time. Examples are heating, cooling or ventilation. This leads to higher operating costs for the building and worsens the CO2 balance.

This is where the smart data technology MeteoViva Climate developed by MeteoViva comes in. This tech company from Jülich has developed a building control software that combines weather forecasts and current building operating data (such as energy and performance prices, building physics and building services) in a digital dynamic building model, evaluates it and proactively optimises the control of the building services equipment. Compared to a conventional building management system, this patented smart data technology adds the predictive inclusion of local weather data for the next three days and its automated evaluation in a digital building model. This transforms a purely reactive building operation into a predictive and proactive building operation with regard to indoor climate and energy consumption.

Future environmental conditions and utilisation parameters are anticipated. Based on these, the technology calculates the most favourable building technology settings for achieving the desired indoor climate. The simulation model determines the ideal operating parameters and then intervenes directly in its control. In this way, only as much heat, cold and fresh air flows into the building as is needed for the desired indoor climate, at the right time.

MeteoViva Climate smart data technology gives the building the right ‘intelligence’

Video: MeteoViva Climate


Smart Data solution for greater well-being and energy efficiency

This technology results in a variety of advantages for the building user:

  • Lower operating costs by adapting energy consumption to users’ needs.
  • Reduced CO2 emissions throughout the building.
  • Optimised indoor climate conditions and fewer employee complaints.

The use of innovative smart data technology can save an average of 15 to 45 percent indoor climate-related energy costs. For 100 Deka Immobilien portfolio properties, we aim for a real reduction in CO2 emissions of up to 15,000 tonnes per year in the first steps of this digital solution.

Practical examples - looking ahead for a sustainably optimized indoor climate

Deka Immobilien has already implemented MeteoVivaClimate in several portfolio buildings. The two Hamburg office and commercial buildings Fleethof and Hohe Bleichen 7 are among the first fund properties to be equipped with MeteoViva's smart data technology. Other buildings include the GAP 15 office tower in Dusseldorf and the Friedrich Carré 1 and 2 complex in Berlin.


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Fleethof, Stadthausbrücke 1–3 in Hamburg


Area: 15,664 m²
Type: six-storey office and commercial building with atrium
Technology: district heating, chillers and ventilation systems, connection of BMS in the building via BACnet-IP
Result in the first year: 44% lower energy costs and 444 tonnes of CO2 emissions saved

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Office and commercial building Hohe Bleichen 7 in Hamburg


Area: 12,744 m²
Type: seven-storey office and commercial building with shops on the ground floor
Technology: district heating, chillers and ventilation systems, connection of BMS in the building via BACnet-IP
Result in the first year: 22% less energy costs and 68 tonnes of CO2 emissions saved

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Friedrich Carré 1 and 2 in Berlin


Area: 35,542 m²
Type: six office and retail buildings in eight-story construction in Berlin-Mitte
Technology: district heating for static heating, ventilation system for heating, cooling and fresh air
Result in the first year: 256 tonnes of CO2 emissions saved. The controllable energy costs were reduced by 34 %, significantly more than the forecast value of 20 %

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GAP 15, Graf-Adolf-Platz 15 in Dusseldorf


Area: 43,722 m²
Type: office tower with 24 upper floors and low-rise building with four upper floors
Technology: district heating, chillers and ventilation systems, individual room temperature sensors
Result in the first year: 19 % lower energy costs and 260 tonnes of CO2 emissions saved

For more information and case studies from our portfolio, please visit the MeteoViva website here under this link.


Implementation of the UN Sustainable Development Goals:

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13 Climate Action

Each additional implementation of this technology leads to
a reduction of the CO2 footprint.

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11 Sustainable Cities

The implementation of MeteoViva leads to increased
user comfort in existing buildings.

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12 Responsible Consumption

The implementation of MeteoViva reduces energy consumption
while increasing user comfort.


Further insights into practice