Development of a decentralized small-scale storage network to compensate for schedule deviations
Starting Point, Description of Problem and Motivation
Within two years more than 11,000 battery storage devices in combination with PV systems have been promoted and installed in Austria and Germany. Investment subsidies and the desire of private households for energy self-sufficiency are the main drivers for this trend, which will most likely increase further in the future. The added value of these battery storage devices for the grid or the energy system is currently low. Considering the subsidies from public authorities, it seems to be economically feasible, to use these storage devices within a defined scope also for system- or grid relevant applications. Especially the use of these storage devices to balance generation schedule deviations within a balancing group or operators of fluctuating production facilities (e.g. wind parks), is an economically promising application.
Goals and Degree of Innovation
The target of the planned project is to develop a concept for a decentrally organized battery-storage-network, to enable the usage of publicly funded battery storage devices (in combination with PV systems) for balancing generation schedule deviations within balancing groups, as well as for other system- or grid relevant applications. Beside an estimation of the potential of this application, possible impacts and reactions to the balancing group, in particular to the generation schedule, will be evaluated. Furthermore, technical, economical, legal and regulatory problems will be discussed and solutions developed. Preparing for the planned implementation of such a battery-storage-network in a follow-up project, varying decentral organized software systems (e.g. multi-agent systems) will be evaluated, to minimize implementation and operation costs.
In the course of this project, the following questions will be answered:
- How high is the potential of such a battery-storage-network? Does an implementation make sense from the macroeconomic perspective?
- What are the possible impacts and/or reactions on the balancing group, in particular on the generation schedule? Are there ways to reduce such impacts and/or reactions?
- What are the limits for such external accesses to a privately owned battery storage device? What are the impacts on the lifetime of the battery storage?
- What are the financial impacts on the owner of the battery storage device, due to additional external usage? How high are the owner’s acceptance and willingness to allow external access? Is it necessary to offer additional incentives or subsidies?
- Which methods and software systems are most suitable for modelling and implementing such a battery-storage-network cost-effectively?
- From today’s perspective, which technical, social, legal and regulatory uncertainties and barriers prevent the implementation of such a storage-network? How can these barriers and uncertainties be overcome?
Based on these results, a concept for a decentrally organised battery-storage-network for balancing generation schedule deviations with within balancing groups will be developed.
Duration: 01.06.2016 - 31.08.2017
Budget: ca. 273.000 € total costs and ca. 199.000 € funding contribution
- Fachhochschule Technikum Wien (coordinator)
- Technikum Wien GmbH
- TU Wien EEG
- Software Competence Center Hagenberg GmbH
- ms.GIS informationssysteme gmbh
- Schrack Technik Energie GmbH
- neovoltaic AG
- Fronius International GmbH
- Energie Burgenland
Funding partner: Klima- und Energiefonds, FFG, energy research - 2nd Call