Sub-project 7: Evaluation
Starting point and aim of research
Energy flexibility in production may be achieved by several different technical and organizational measures. For example, energy storages or shifting the times of processing can measures for energy flexibility. All of which result in costs.
For this reasons, it is necessary to compare costs associated with the implementation of energy flexibility and the possible gain of such measures. Sub-project 7 aims at developing a method for evaluating energy flexibility and its economical potential. The results of this method are key performance indicators which represent the flexibility and the respective net gain.
Approach and methodology
Firstly the requirements to energy flexibility have to be identified. To give an example, important factors are the reaction time of a factory to changes in energy markets, the amount of shiftable loads or the possible maximal duration of a load reduction.
In the next step, a method for evaluating the energy flexibility of a production system, e.g. the possibility to adapt itself to changes in energy markets, has to be developed. While the energy demand of a factory is the sum of the energy demand of its power consuming devices and machines, the method will be based on the adoptable states of the machines and the possible measures for changing these machine states.
In addition, costs, which occur when conducting an energy flexibility measure, will be compared with the saving potential of energy flexibility due to cheap energy prices. The outcome of this is a holistic economic evaluation of energy flexibility.
Another focus of the sub-project is the implementation of the developed method in a software-tool, which should provide a software-based solution for the user of the method.>www.igcv.fraunhofer.de