Dr. Andrzej Rzeczycki
Department of Logistics, University of Szczecin, Szczecin, Poland
Email: [email protected]
DOI: 10.23918/ICABEP2021p48
Abstract
Renewable energy sources are defined as unstable due to the dependence of the volume of energy produced on uncontrollable factors such as weather, time of day, etc. With the increase in the number of electricity producers from RES, the problem of instability in the operation of power grids will increase. Therefore, in many countries, an extremely important issue is to develop a system solution stabilizing the operation of electricity distribution networks, which will enable effective management of electricity by increasing the flexibility of the network in terms of the possibility of connecting new producers of energy from renewable sources (RES), increasing the security and reliability of the network, and also by improving the quality parameters of the supplied electricity.
The solution to the presented problem is to be electricity storage. Many technologies as well as structural solutions for such model are considered. One of potential technology is the use of hydrogen. The task of the hydrogen buffer is to stabilize the operation of power grids by converting excess electricity into hydrogen (electrolyser), storing hydrogen (storage) and converting hydrogen into electricity (fuel cell). The energy stored in the hydrogen will serve to meet future demand in the event of periodic shortages. Moreover, as a hydrogen fuel (distribution phase) it can also be used for the utility purposes of the distribution network operator (e.g. refuelling the vehicle fleet). The by-product of the electrolysis process is oxygen, the sale of which may in the future constitute a source of income for the distribution system operator (additional economic benefits).
The subject of the research is the concept of a multi-criteria theoretical model of system architecture that stabilizes the operation of power distribution networks based on a hydrogen energy buffer, taking into account the utilization. The structural model will constitute the foundation for further research, as well as make a significant contribution to the still initial stage of development of science in the field of hydrogen energy and hydrogen supply chains.
A significant cognitive gap in this issue was confirmed by a systematic review of the literature. The results of the literature research made it possible to conceptualize and operationalize the variables in the structural model. As a consequence, four groups of factors were distinguished: technical, economic and logistic, localization and formal and legal, which were then categorized according to the phases of the supply chain (supply, production and storage, distribution). Taking into account the nature of the selected variables in the model, were additionally categorized into variables influencing the design of the stabilization system and the functioning of the stabilization system. The system design variables became the object of structural modelling, and the variables influencing the functioning were used to develop the simulation algorithm.
Keywords: Logistic, Renewable Energy, Management
ICABEP2021
International Conference on Accounting, Business, Economics and Politics
3rd joint conference organized by the collaboration of the Faculty of Administrative Sciences and Economics,
Tishk International University, College of Administration and Economics, Salahaddin University-Erbil, and
University of Szczecin, Poland.
