projekt

Berlin has committed to climate neutrality by 2045. To achieve this ambitious goal, energy efficiency improvements and increased decarbonization of the energy supply to the building stock must be thoughtfully planned.                                                                     

This first requires the most accurate knowledge possible of the current building-specific consumption at the level of the city quarters so that energy refurbishment measures for the building stock can be effectively selected and the transformation steps towards the future energy supply systems can be defined. For this reason, a digital online heat register is to be created for Berlin based on publicly available building information, statistical building data and also energy consumption data. Currently, the energy consumption data can be viewed with a spatial resolution down to block level at most, and in some cases only down to postcode level. For municipal heating planning, however, building-level consumption data is needed. Therefore, EnergyMap goes one step further and provides building-specific modelled consumption values based on AI-controlled building modelling. No real consumption data is published, but rather AI-based forecasts of building consumption, so that the data protection of the building users is guaranteed.

The combination of calculated building-specific heat demand values based on publicly available data with real "crowd sourcing" consumption data from individual buildings or properties - collected via an online platform - is intended to deliver scientifically and socially valuable results:

1. Scientific Output: The comparison of the energy demand characteristics calculated with statistical and physical methods with the actually measured energy consumption of individual buildings makes it possible to successively improve the forecasting quality of the AI models used.
2. Socially Usable Output: A high-quality heat register covering the entire city of Berlin is gradually being created.

The building-specific heat consumption data and the associated building parameters are entered by the building users and operators via a standardized web interface. The data collected in this way flows into an AI-based forecast model for the building-specific heating demand. In the course of the project, this data scope will continuously expand, whereby a steady improvement of the forecast quality for the heat cadastre of the state of Berlin is expected.

In parallel to the EnergyMap Berlin project, the city of Berlin will also establish an energy and heat cadastre in accordance with the requirements of the Berlin Energy Transition Act 2021. The EnergyMap Berlin project is therefore coordinating closely with the relevant senate administrations during the course of the project in order to evaluate data availability and existing obstacles, especially data protection. 

In the research project, different data sources are used, such as data from the energy supply companies, building modelling data from the urban geographic information system FIS Broker, crowd sourcing data of building energy consumption from residents (tenants or owners) as well as energy performance certificate and consumption data from public buildings.

The aggregated data from the heat cadastre building database will be made publicly available at two levels of detail:

1. "Light" version for non-experts: Interested citizens can call up basic energy information about their own building (e.g. building energy efficiency class and predicted building-specific heating demand) via a simple 2D online map. 
2. Full version for experts: More extensive building-specific building data sets are to be retrievable via a 2D/3D web interface based on the 3D city model of the state of Berlin. This web interface should also support building-wide functionalities, such as the display of area-related energy demand densities or the possibility to extract the energy demands for all buildings of a city district.

The objective of EnergyMap is the development, establishment and evaluation of a database-supported multi-user/multisource application including an online platform for the creation of a building-specific digital heat register for the building stock of the state of Berlin. This is intended to create a maximally transparent data basis for the current spatially differentiated energy status of the building stock of the federal capital, which is to be freely available to all social actors of the energy transition in the future as a planning basis in various levels of detail.

The long-term goal is to achieve maximum transparency of energy consumption for all buildings in the state of Berlin in order to create a good basis for economic, energy policy, planning, but also renovation-related decisions for all actors in the city (tenants, owners, housing associations, energy suppliers, politics), especially for new city district-related energy concepts. For this reason, the calculated and collected data should be made available to the general public without restriction.