On November 3, 2022, Longyuan Power Jiangsu Offshore Longyuan Wind Power Co., Ltd. Sheyang 1 million kilowatt offshore wind power project EPC general contracting public bidding project winning candidates were announced. East China Power Construction Group Survey, Design and Research Institute Co., Ltd. won the bid, with a bid price of 9.97 billion yuan!

Project overview

Project unit: Jiangsu Haihai Longyuan Wind Power Co., Ltd

Project overview: The wind farm is located in the sea area in the southeast of Sheyang Estuary, the northernmost of the radial sandbar, about 65km offshore from the central point of the site, and the seabed topography has some fluctuations, with the seabed elevation of - 9m to - 20m. The total installed capacity is 1000MW. Two 220kV sea booster stations and one 220kV onshore centralized control center are newly built in the wind farm. The generated energy is collected to the 35kV bus of the offshore booster station, boosted to 220kV through the main transformer, and then connected to the landing point through four 220kv submarine cables. After landing, it is connected to the 220kV onshore centralized control center of the wind farm, and then connected to the system station.

Scope of bidding

The scope of this bidding is the survey and design, equipment and materials procurement, civil construction and installation of Sheyang 1000MW offshore wind power project, including: survey and design of wind farm; Procurement of main engine and supporting tower equipment, procurement of electrical primary equipment for offshore booster station, procurement of HVAC system for offshore booster station, procurement of fire protection system for offshore booster station, procurement of integrated automation secondary equipment, procurement of GIS equipment for onshore centralized control center, procurement of switchgear, connecting cables and corresponding accessories for onshore centralized control center, procurement of high impedance equipment for offshore booster station and step-down transformer and high impedance equipment for onshore centralized control center Procurement of reactive power compensation and low-voltage reactor equipment for onshore centralized control center, 35kV submarine cable procurement and 220kV submarine cable procurement; Construction of construction and installation project: fan foundation and fan installation project, onshore centralized control center construction and installation project, offshore booster station construction and installation project, 220kV submarine cable construction, 35kV submarine cable construction, onshore centralized control center site leveling project, onshore centralized control center pile foundation project, onshore centralized control center greening project. Keywords: engineering news, engineering construction information, engineering construction

The procurement of main engine and supporting tower equipment, fan foundation and fan installation works, and 35kV submarine cable construction shall be invited by the Tenderee in accordance with the public bidding procedure. During the bidding, the amount estimated by the Tenderee shall be included in the quotation, and finally incorporated into the EPC contract according to the Tenderee's bid winning purchase price. The contents involved shall be under the overall control of the EPC contract. 35kV submarine cable procurement, 220kV submarine cable procurement, 220kV submarine cable construction, onshore centralized control center construction and installation, offshore booster station construction and installation projects have been completed by the Tenderee, and are included in the quotation according to the bid winning results. Planned construction period: the planned completion date of this project is October 31, 2023. Editor/Zhao E