Real estate funds’ certification strategies focus primarily on existing properties. This can be explained by a variety of factors. For one thing, existing properties account for the majority of CO2 emissions. What is more, efficiently renovating a building avoids the additional emissions that would result from demolishing it and starting again, including those from manufacturing new construction materials.
However, the sector has realised that even careful planning cannot ensure that a building will actually achieve optimum energy efficiency once it comes into operation. Data-based information on the building’s actual characteristics, usage situation and consumption is required to leverage the full potential of energy efficiency and indoor climate quality. Incorrect configurations that go unnoticed can lead to enormous operating costs over the property’s entire life cycle.
Service recognised by the DGNB
The DGNB’s Buildings In Use certification system provides building owners, operators and users alike with a tool for realising all the optimisation potential relating to operations, so that existing buildings can be made fit for the future. Data-based solutions that are capable of optimally controlling a building and exploiting additional potential using smart data are playing an ever greater role in the optimisation of operations. Creating a digital twin makes it possible to exactly replicate a real building and the behaviour of its physics and technical systems over time. This allows the best possible 24/7 operation to be calculated in advance by way of simulation and optimisation.
Deka Immobilien is now using such a solution in the form of MeteoViva Climate to save energy at a large number of properties in Germany and abroad. The average reduction in energy costs is 25 per cent. Complaints are significantly reduced as a result of the noticeably improved quality of the indoor climate.