EnStadt:Pfaff - Decentralized Energy Management from the Smart Home to the Urban Quarter

Duration: 10/2017 - 09/2022
Contracting Authority/ Sponsors:
Bundesministerium für Wirtschaft und Energie (BMWi); Bundesministerium für Bildung und Forschung (BMBF)
Project Partners: Stadt Kaiserslautern; Pfaff-Areal Entwicklungsgesellschaft (PEG); Palatina Wohnbau; Fraunhofer Institut für Experimentelles Software Engineering (IESE); Hochschule Trier, Umwelt-Campus Birkenfeld, Institut für angewandtes Stoffstrommanagement (IfaS); Hochschule Kaiserslautern, Institut für Nachhaltiges Bauen und Gestalten; Hochschule Fresenius, Institut für Energiewirtschaft
Website: Pfaff-Reallabor

Project Focus:
© Pfaff Reallabor
Interconnected energy agents
© Fraunhofer ISE
Interconnected energy agents

In the project we develop cooperative software energy agents for different distributed controllable microsystems (heat pump, electric cars, battery storage), which communicate with each other and act according to defined trading rules with high temporal resolution. The software agents pursue the individual goals of their respective users, but also monitors the city quarter as an overall system.

A specific objective in the sub-project is the allocation and billing of energy using block chain technology. It provides the end user with a transparent overview of his current share of green electricity and creates incentives for load shifting.


As part of the development of the new city quarter on the site of the former Pfaff sewing machine factory in Kaiserslautern, the Smart Grid department at Fraunhofer ISE is investigating energy balancing at the building and quarter level. With the help of agent-based energy management, the current state of the energy system is mapped in high resolution. Agents create optimized schedules for flexible loads based on their own and third-party forecasts, taking into account defined user goals. For example, a user can release his electric car for bidirectional PV-optimized charging to increase the share of renewable energy in his power mix. A holistic approach takes into account the individual hierarchical levels from the smart home device to the connection point of the urban quarter. Sector coupling between the electricity, heating & cooling and mobility sectors is also considered.

Another focus of this work package is the research of block chain technology for billing within an urban quarter. The measured energy quantities of the individual electrical generators and consumers are recorded in the block chain and distributed among the individual parties using smart contracts according to a defined key. This gives tenants an overview of their current electricity mix and provides them with tokens for green electricity consumed within the urban quarter. These also can be used for other services within the quarter. At the same time, this creates a real incentive for the energy agents to act in a manner that is conducive to the quarter and ensures a balanced energy system.