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Innovative operation model for neighbourhood power storage

STROMBANK demonstrates the operation of a power storage facility within a certain neighbourhood. Power generating consumers (“prosumer”) and power consuming consumers are both part of the project to investigate besides the technical components of the system the societal component of this new model. The two-year project was started 2014 and is funded by the BW-plus programme of the State of Baden-Württemberg. Project partners are: MVV Energie (power supplier, project coordinator), Institute for Photovoltaic of the University of Stuttgart, adc-tec GmbH, Netrion GmbH (technology suppliers).

The technical component consists of the possibility to “pay in” power from renewable sources into the large-scale battery, similar to a checking account. Unused power is stored and can be withdrawn when needed in the neighbourhood, can be sold to other consumers who are part of the bank, or can sold to the power market generally. Transport grids will be less used, as locally generated energy will be stored locally until using it again locally or selling it to the market. Prosumers, on the other side, have the full transparency and control over the power generated in their households (for example through photovoltaic installations). The prosumer is becoming an active part in the restructuring of the energy market.

In a first step, technical components will be developed. For the participating public, surveys and focus groups will be conducted to assess their motivations, intentions, and acceptance. A special focus is on the business model of the “Strombank”, as different ideas need to be tested. For example, the bank account may be implemented as a checking account, as a savings account, or as a cooperative. Differences relate to the question of who owns the generated power in a neighbourhood and how can it be shared.

Funding State of Baden-Württemberg,
BW-plus programme
Project duration: 2014 – 2016
Project staff: Piet Sellke
Contact: Piet Sellke

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