摘要
Abstract
In April 2024,the national regulatory authorities issued the first national level policy for offshore PV power generation using the sea,clarifying the support for four types of PV power generation using sea methods:nuclear power thermal drainage zones,salt fields and salt ponds,mariculture zones,offshore wind-PV construction on the same site.Based on the mode of wind-PV construction on the same site,the cost and economy of offshore PV power generation are first analyzed.Then,based on the analysis of the complementarity of wind energy and solar energy resources in the offshore area,the feasibility and development potential of developing pile-based fixed offshore PV power generation projects in the same field as existing offshore wind farms are discussed,and relevant suggestions are given.The research results show that:1)Offshore PV power generation has enormous development potential due to its proximity to power load centers,short construction period,and good economic viability.2)China's offshore wind energy and solar energy resources are abundant.From annual and daily data,both have good complementarity,especially wind power can play an important supporting role in the evening peak period of the power system.3)In the actual engineering development and construction of wind-PV construction on the same site,the dual effects of wind turbine tower shadow occlusion and wind turbine tower overturning distance should be comprehensively considered.4)After estimation,taking the sea areas of Jiangsu Province and Shandong Province as examples,when constructing offshore PV power generation projects on the same site as existing offshore wind farms,the area available for offshore PV power generation construction accounts for about 45%～48%of the surrounding sea area of the outer edge of the offshore wind farm.The potential exploitable total installed capacity of pile-based fixed offshore PV power generation in the waters north of Zhejiang Province,which is located on the same site as the existing offshore wind farm,is approximately 115.2 GW,with enormous development potential.Conducting research on the wind-PV construction on the same site is beneficial for the multi-dimensional utilization of marine space,expanding new paths for the development and construction of offshore new energy,and effectively solving the problem of scarce PV land in the central and eastern regions of China.关键词
海上光伏发电/风光同场/海上风电场/桩基固定式/开发潜力/系统设计/成本与经济性Key words
offshore PV power generation/wind-PV construction on the same site/offshore wind farms/pile-based fixed/exploitation potential/system design/cost and economy分类
信息技术与安全科学
