Use case water

Sustainable forecast-based rainwater management

The state of Berlin has decided to promote decentralized rainwater management as an effective part of adapting to the impacts of climate change. New residential districts are therefore expected to aim for decentralized rainwater management even in the planning stage.

In Berlin TXL, the plan is to follow the principle of the sponge city, with as much rainwater as possible being retained and cleaned in order to facilitate efficient delivery of available, cleaned rainwater to all who need it. Drinking water is to be substituted and rainwater used directly on site. The aim is to maximize the use of rainwater by the operators and by the people living here or engaged in business on site. At the same time, flood protection must always be guaranteed in line with the regulatory provisions of the state of Berlin.

A smart control system for planning and assessing facilities for managing rainwater guarantees this for the Urban Tech Republic. The system uses data from the internet of things (IoT) and from the local rainwater infrastructure, such as water levels. This is complemented by values from the weather forecast and the needs of consumers at the delivery points. What volumes are distributed to whom in what order, is decided using this data.

The development partners for this are the engineering bureau Prof. Dr. Sieker GmbH, the Berliner Wasserbetriebe and the engineering firm Kraft as planners of the new natural rainwater lake.

Berlin TXL smart rainwater management fact sheet