To address the industry pain points of high energy cost and high carbon emissions in high-energy-consumption industrial aquaculture, and promote the low-carbon transformation of the aquaculture industry, this study takes the industrial recirculating aquaculture system as the research object. It focuses on the application of photovoltaic-energy storage system (PV-ESS). It calculates the energy substitution ratio of new energy for traditional grid energy by combining field monitoring and data modeling. It also conducts a comprehensive benefit evaluation from three dimensions: economic benefit, environmental benefit and energy benefit. The results show that the rationally configured PV-ESS can cover the energy demand of core high-energy-consumption links in aquaculture, with an energy substitution ratio of 35.00%~48.00%. It not only reduces the comprehensive energy cost of aquaculture but also significantly cuts carbon emissions. This study provides theoretical support and practical reference for the energy structure optimization and new energy supporting scheme design of high-energy-consumption industrial aquaculture, helping the aquaculture industry upgrade towards green, low-carbon, efficient and sustainable development.
References
[1] Li, H., Zhou, X., Gao, L., Liang, J., Liu, H., Li, Y., Liang, S. (2025) Carbon footprint assessment and reduction strategies for aquaculture: a review. Journal of the World Aquaculture Society, 56(1), e13117.
[2] Li, H., Yang, Y., Li, Q., Gui, X., Zhao, P. (2020) Research on the configuration and operation strategy of hybrid energy storage system of PV-ESS micro-grid in mountainous rural areas. IOP Conference Series: Earth and Environmental Science, 514(4), 042048.
[3] Rong, F., Liu, H., Zhu, J., Qin, G. (2025) Carbon footprint of shrimp (Litopenaeus vannamei) cultured in recirculating aquaculture systems (RAS) in China. Journal of Cleaner Production, 145606.
[4] Gao, Y., Cai, Y., Liu, C. (2022) Annual operating characteristics analysis of photovoltaic-energy storage microgrid based on retired lithium iron phosphate batteries. Journal of Energy Storage, 45, 103769.
[5] Zhao, Y., Lv, X., Shen, X., Wang, G., Li, Z., Yu, P., Luo, Z. (2023) Determination of weights for the integrated energy system assessment index with electrical energy substitution in the dual carbon context. Energies, 16(4), 2039.
[6] Pringle, A. M., Handler, R. M., Pearce, J. M. (2017) Aquavoltaics: synergies for dual use of water area for solar photovoltaic electricity generation and aquaculture. Renewable and Sustainable Energy Reviews, 80, 572-584.
[7] Cho, J., Park, S. M., Park, A. R., Lee, O. C., Nam, G., Ra, I. H. (2020) Application of photovoltaic systems for agriculture: a study on the relationship between power generation and farming for the improvement of photovoltaic applications in agriculture. Energies, 13(18), 4815.
[8] Zhang, J., Mei, S., Zhang, Y., Hao, C., Zhao, D., Yuan, J. (2025) Deployment strategy of PV-ESS for industrial and commercial electricity users with consideration of carbon benefits. Journal of Renewable and Sustainable Energy, 17(2), 025901
[9] Do Nascimento, A. D. J., Rüther, R. (2020) Evaluating distributed photovoltaic (PV) generation to foster the adoption of energy storage systems (ESS) in time-of-use frameworks. Solar Energy, 208, 917-929.
[10] Fang, T., Fang, D., Yu, B. (2022) Carbon emission efficiency of thermal power generation in China: empirical evidence from the micro-perspective of power plants. Energy Policy, 165, 112955.
Share and Cite
Nie, J. (2025) Energy Substitution Ratio and Benefit Evaluation of PV-ESS in High-energy-consumption Industrial Aquaculture. Hong Kong Financial Bulletin, 1(6), 18-22.