Economic comparison analysis of different energy storage forms for photovoltaic energy storage power stations
The integration of energy storage with renewable energy power stations is a significant trend in energy development. Energy storage systems serve to mitigate the fluctuations in renewable energy output,thereby enhancing energy utilization efficiency and grid security. To compare the economic viability of different energy storage forms in photovoltaic power stations,comprehensive models encompassing electricity,economic,and cost considerations were devised. Focusing on a 100 MW photovoltaic facility in Gansu Province,this study scrutinizes the economic viability and control strategies associated with integrating various forms of energy storage. This study employed a distance-based K-means clustering analysis to consolidate similar scenarios and refine raw data. A comparative analysis was conducted on three configurations:standalone LFP battery energy storage,standalone compressed air energy storage,and a hybridized configuration intertwining compressed air and LFP battery energy storage. The results indicate that the standalone deployment of LFP battery energy storage exhibits the highest economic viability,with a payback period of 7.16 years. Coupled energy storage systems combining compressed air and LFP batteries follow with slightly lower economic viability,featuring a payback period of 8.93 years. Conversely,the standalone deployment of compressed air energy storage demonstrates the lowest economic viability,with a payback period of 9.03 years.
compressed air energy storageLFP battery energy storagephotovoltaic power stationeconomy analysis