2025
Germany
StromGedacht is an app by TransnetBW that informs citizens about the electricity grid’s status in real time using a simple traffic light system. It helps households and smart devices adapt their electricity use to renewable energy availability, stabilising the grid and reducing CO₂ emissions. Through transparency and engagement, it turns passive consumers into active participants in Germany’s energy transition.
Highlights
01
300,000+ app downloads; users shift up to 10 MW during high-demand periods.
02
First German app providing real-time grid load and demand-response signals.
03
API enables smart homes and businesses to automatically optimise energy use.
Main Information
StromGedacht, developed by TransnetBW, is a pioneering communication and engagement tool supporting Germany’s energy transition. The app visualises the real-time status of Baden-Württemberg’s electricity grid using a traffic light system, helping users adjust consumption to match renewable generation.
Launched in 2022, StromGedacht bridges the gap between grid operators and citizens through simple, transparent signals and actionable recommendations. It promotes conscious electricity use when renewable energy is abundant and reduces demand when the grid is under strain. Through open API access, smart homes and industrial systems can automatically respond to grid needs.
The app democratizes grid stability by enabling everyone to contribute directly to climate-friendly energy use. TransnetBW collaborated with partners such as Mercedes-Benz, Octopus Energy and Reutlingen University. The project has achieved broad visibility and built an active user community. It has also attracted interest from other grid operators in Europe exploring similar communication and engagement approaches.
Future development focuses on expanding the app beyond Baden-Württemberg, improving the precision of local grid signals, and integrating additional data sources to enhance usability and impact.
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