Model regions and regional pilot projects

Cellular distribution management in the smart grid

Project moma „Model city Mannheim“
In order to achieve political energy objectives, a higher degree of social participation needs to be activated. Central and decentralised energy needs to be integrated, and energy efficiency must increase. In order to control complexities and various flexibilities new business opportunities need to be developed. The technical requirement for this task is the use of so-called smart grids. The E-Energy project Model City Mannheim (moma) therefore uses a cellular distribution management approach with automated procedures.

The control system of renewable energies leads to higher complexity; it is controllable through a variety of flexibilities. To demonstrate the prospective system, the E-Energy programme was launched with six required projects. Moma developed the necessary smart grid infrastructure and initially examined new business models in which the following topics were given special attention:

• Connectedness of centralised and decentralised power generation

• Flexibility from thermal storage

• Load displacement

• Network flexibility with cellular structures and distributed automation

• Energy system flexibility through the interconnection of electricity and heat networks

To maintain system stability and limit network expansion, moma used a cellular concept to examine new forms of distributed automation in interactions between the network and the market as well as from the network and market to the end customer. In doing so, new strategies to ensure information security in a critically networked infrastructure were specified.

Concerning the use of flexibilities, a business model for suppliers of demand side management was examined in a field test and a trade simulation, as were new distribution management mechanisms and how they interacted with the market and customer facilities in ancillary services. This was all done as part of an extensive network simulation.

The architectural concept for decentralised energy management requires a standardised energy management gateway between the energy network and market as well as the prosumer as an interface to devices, measuring systems and user interaction. This was realised in moma on the basis of the OGEMA alliance, whereby the associated concept is illustrated with a subsequent description.

In two field tests, 800 clients were provided with equipment for price-based device control. The results will be published alongside the evaluation and final report after the project is completed in May 2013.

contact details/company:
MVV Energie AG
Luisenring 49
68159 Mannheim

contact person:
Dr. Robert Thomann