Core Viewpoint - The construction of the Shangzhuang-Tianyun transmission line is a key project in Fujian's "14th Five-Year Plan" for electricity, aimed at enhancing the region's renewable energy capacity and improving the power grid structure [1][4]. Group 1: Project Overview - The total installed power capacity in Putian reached 9.551 million kilowatts by the end of August, with an expected addition of approximately 800,000 kilowatts of wind power capacity by the end of 2026 [1]. - The Shangzhuang-Tianyun transmission line, spanning 21.9 kilometers, will serve as a crucial channel for offshore wind power transmission in the Putian area, supporting the integration of over 500,000 kilowatts of renewable energy [1]. Group 2: Environmental Considerations - The construction of two iron towers in the sensitive ecological area of the Haohai reclamation sea presents significant challenges, necessitating a focus on minimizing environmental impact [2]. - The project team has adopted a green construction approach, utilizing a steel bridge and modular steel structures to avoid traditional filling methods that could harm the marine ecosystem [4][6]. Group 3: Innovative Construction Techniques - The use of 1.8-meter diameter steel casings at each tower foundation site creates a closed construction space, preventing drilling mud from contaminating the marine environment [6]. - A mud circulation monitoring device has been installed to ensure zero leakage of pollutants during the drilling process, with real-time monitoring of mud levels and pressure [6]. - The project employs a three-component vegetation restoration technique, achieving over 90% vegetation recovery efficiency while reducing irrigation water usage by 30% and labor input by 20% [7].