we mobilize the digital energy transition

Four field tests

... and two accompanying conceptual subprojects enable the transfer from research into practice

The Harmon-E cluster focuses on the harmonious interaction of the overall system. Taking grid restrictions into account, the market-optimized and at the same time grid-serving charging and discharging of electric vehicles is being realized and tested for customer suitability.

  • Prioritized Use Cases: Grid-serving flexibility and market-serving flexibility (marketing)
  • Focus: Broad selection of locations, unidirectional in the field, bidirectional in the laboratory, combinability of market- & grid-serving flexibility, interaction of smart home, electric vehicle, and heat pump
  • Field tests: Rather rural region near Oldenburg, charging at single-family home and at commercial/workplace site

The Heav-E cluster investigates the grid effects of high penetration of electric vehicles in a large-scale field test. In this context, new incentive systems for grid-serving charging and suitable communication standards are to be tested.

  • Prioritized Use Cases: Adaptation of charging behavior through price signals and direct control from the grid.
  • Focus: Location-independent charging, user behavior, and incentive systems
  • Field tests: Rather rural region in and around Baunatal near Kassel, charging at single-family home, at workplace site, and in the public sector

As a southern German cluster, sun-E gets its name from the interaction between electric mobility and photovoltaic power generation. Due to the competition between grid and market-serving charging strategies, the focus lies on the development of attractive, customer-centered solutions.

  • Prioritized Use Cases: Self-consumption optimization of the photovoltaic system and regulatory-defined grid-serving control
  • Focus: Home charging with synergy effects for customers, testing of production-ready technical solutions, frequency control reserve from electric vehicles
  • Field tests: Rural region in Bavaria, charging at single-family home with photovoltaic system

Cit-E-Life complements the unIT-e² project structure with field tests in urban areas. The urban test environments will specifically address the challenges of complex ownership structures along the process chain between the automotive and energy industries.

  • Prioritized Use Cases: Power specification at the grid connection point and building management
  • Focus: Charging in urban areas, focus on building management of multi-party building with different systems and measurement technologies
  • Field tests: In the urban area of Munich, charging at multi-party house

Grid subproject

  • Mechanisms for the integration of decentralized small-scale flexibility into the energy system, incl. the definition of control and regulation strategies
  • Coordination mechanisms for the harmonization of switching processes between grid and market
  • Hardware and software components based on the infrastructure of intelligent metering systems ("smart meters") for use in field tests
  • Interconnection of activities from the clusters to create interoperability

Research subproject

  • Scientific method development to use in the project
  • Development of models on different levels (actors, markets, grids)
  • Legal-regulatory framework and future options
  • Relevant user preferences, incentive systems, and total cost of ownership
  • Derivation of conclusions and options for grid-integrated flexibility from a scientific perspective


The field tests within the framework of the four clusters cover a wide spectrum, both, in terms of generation and consumption structure as well as geographically, and are scientifically supported by the accompanying subprojects.
Deutschlandkarte english 1

Three key aspects of our cooperation

... contribute significantly to the success of our research project

Common approach

Company-specific isolated solutions are dissolved, competing requirements of electric mobility and the energy system are harmonized and standardized.

Future-proof solutions

Secure and interoperable concepts for grid- and market-side integration of electric vehicles are developed using the standardized infrastructure of intelligent metering systems.


Social trust in electric mobility will be strengthened through customer-oriented incentive mechanisms and product design.

Our approach in unIT-e²

From concept to practice in three years
2021 2023 2022 2024 2025 In the first months of the project, cluster-wide use cases are designed, evaluated, and selected according to their relevance for further implementation. Practical testing in various field tests provides important insights into the potential, interoperability and incentive mechanisms for the solutions developed. Subsequently, the focus is on the technical implementation of the intelligent control in hardware and software for the implementation of the use cases. After completion of the field tests, the main results will be summarized, synthesized, and transferred into concrete recommendations for action. Beyond the end of the project, the knowledge gained will be used for further research, development, and standardization.

with the support of

Projektträger groß
Simon Köppl
Simon Köppl
General Project Lead
+49 89 158121 78
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Michael Hinterstocker
Michael Hinterstocker
General Project Lead
+49 89 158121 53
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Elisabeth Springmann
Elisabeth Springmann
Deputy General Project Lead
+49 89 158121 28
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