ANALYSIS OF EXISTING APPROACHES TO THE OPERATION OF PHOTOVOLTAIC POWER PLANTS WITH BATTERY ENERGY STORAGE SYSTEMS IN ELECTRICITY MARKETS

• Дата: 2026
• Автори: Budko , V., Lazorko , M., Milan, Belik, Bobba , Phaneendra Babu, Budko, M.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2026
• Теми: photovoltaic power plants; energy storage systems; electricity generation; operating mode optimisation; power system balancing; generation curtailment; inverter-dominated networks; renewable energy sources.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/631
• Назва журналу: Vidnovluvana energetika

The increasing share of solar generation in the structure of the electric power sector is accompanied by growing variability in electricity production and an increase in curtailment volumes, leading to underutilization of the available energy resource. Under such conditions, energy storage systems are considered a key tool for enhancing the actual electricity output; however, existing approaches to their application are primarily focused on economic optimisation rather than maximising generation. This necessitates reconsidering the role of photovoltaic power plants with battery energy storage systems as a means of improving generation efficiency under electricity market conditions. The aim of this study is to provide a systematic analysis of modern approaches to the operation of photovoltaic systems with battery energy storage in market environments, focusing on their impact on the volume and stability of electricity generation. To achieve this objective, the following tasks are addressed: generalization of approaches to considering photovoltaic systems with battery storage as a multi-functional market asset; analysis of optimization methods and control strategies for energy storage systems; investigation of battery degradation modeling approaches and their impact on long-term performance; examination of inverter and distribution network constraints; and analysis of the specific features of the Ukrainian electricity market in the context of energy storage integration. Methodologically, the study is based on a comparative analysis of contemporary scientific literature covering optimisation of operating modes for photovoltaic systems with battery storage, modelling of their technical characteristics, and their participation in various segments of electricity markets. Particular attention is paid to aligning the technical processes of generation and storage with market mechanisms, as well as evaluating the impact of control strategies on actual electricity output. The results show that the efficiency of photovoltaic systems with battery energy storage is determined not only by storage parameters but also by selected operating modes, which affect generation curtailment levels, utilisation of installed capacity, and long-term availability of the energy resource. It is demonstrated that neglecting battery degradation and network constraints leads to overestimation of system performance, while their inclusion significantly alters optimal control strategies. A lack of integrated approaches that simultaneously consider market conditions, technical constraints, and temporal changes in system characteristics is identified. The obtained results provide a basis for defining scientifically grounded directions for further research aimed at developing integrated control models for photovoltaic systems with battery energy storage, focused on maximising actual electricity generation and minimising energy losses during operation.