Full-capacity grid connection achieved for Phase I of China Energy Engineering Corporation's 1,000 MW wind-storage project in Zhalantun, Inner Mongolia

en.Wedoany.com Reported - On August 31, the 700 MW northern section (Phase I) of the Mengneng Zhalantun 1,000 MW wind-storage project, contracted by China Energy Engineering Group Shanxi Electric Power Engineering Co., Ltd., achieved full-capacity grid connection.

Located in Zhalantun City, Inner Mongolia Autonomous Region, Phase I adopts a "steel-concrete hybrid tower + box-type transformer mounted atop the tower" technical approach, with a single-unit capacity of 10 MW, a hub height of 140 meters, a rotor diameter of 232 meters, and 18 collector circuits, offering advantages such as structural stability, ease of operation and maintenance, and high power generation efficiency.

To address challenges including extreme cold, strong winds, and a short effective construction period, the project team scientifically optimized the construction organization plan, established a "daily scheduling and shift review" mechanism, and refined hoisting operations to hour-level coordination, achieving efficient workflow progression and maximizing the use of available construction time. In response to the technical difficulties of hybrid tower construction, the project team addressed multiple aspects including processes, materials, and hoisting, and leveraged an intelligent meteorological monitoring system to dynamically assess changes in wind speed and temperature, precisely identifying safe daily operation windows, thereby accelerating project progress while maintaining a firm safety bottom line.

During construction, the project team adopted the "box-type transformer mounted atop the tower" technology and equipment for the first time, enabling integrated on-tower operation and maintenance, and continuously optimized the transport routes for precast concrete ring segments to ensure the steady and uninterrupted delivery of quarter-section ring components, preventing material shortages from delaying the schedule. Based on the site's terrain and wind conditions, the project innovatively adopted a combined construction approach integrating single-blade hoisting and full-rotor assembly hoisting, improving hoisting efficiency and operational stability.

Upon completion, the project is expected to generate approximately 1.618 billion kWh of electricity annually, saving about 469,000 tonnes of standard coal and reducing carbon dioxide emissions by approximately 1.12 million tonnes per year. This will play a positive role in optimizing the regional energy structure and promoting ecological environmental protection, demonstrating a concrete commitment to the national green and low-carbon development strategy.