Recently, China Electric Power Construction Northwest Survey and Design Institute Co., Ltd. (referred to as "China Electric Power Construction Northwest Institute"), together with its affiliated enterprises, successfully won the EPC general contracting project of the main project of Shaanxi Dazhuangli Pumped Storage Power Station with a bidding amount of 9.15 billion yuan. This major bid marks a solid step forward for Shaanxi Province in promoting clean energy construction and building a new type of power system.

Project scale and technical indicators reach new industry highs

The Dazhuangli Pumped Storage Power Station project in Shaanxi Province is located in Chencang District, Baoji City, and is a significant energy infrastructure project with important strategic significance. The total installed capacity of the project reaches 2100MW, using 6 sets of 350MW reversible units, with a rated head of up to 669 meters and a distance to height ratio of 3.3. All technical indicators have reached the advanced level in China.

According to the project design documents, after the completion of the power station, the annual designed power generation will reach 4.221 billion kWh, the annual pumping capacity will be 5.628 billion kWh, and the comprehensive efficiency will remain at a high level of 75%. As a daily regulated pure pumped storage power station, the project has a full utilization time of 6 hours and will play an important role in power grid peak shaving, valley filling, frequency regulation, phase modulation, and emergency backup.

The integrated investment and construction model has achieved significant results

This winning bid result has long been expected in the industry. Tracing the development history of the project, in July 2025, the Board of Directors of China Electric Power Construction officially approved the investment and construction of the pumped storage project by its subsidiary, Northwest Institute. The project was initially jointly invested and developed by Northwest Institute of China Electric Power Construction and Shaanxi Huadian Energy. Later, during the strategic adjustment process, Shaanxi Huadian Energy withdrew and Northwest Institute of China Electric Power Construction fully took over, forming a unique integrated promotion pattern of "investment design consulting construction".

This integrated model of the entire industry chain not only ensures the effective connection of various links in the project, but also greatly improves the efficiency and quality control level of engineering construction. Industry insiders believe that this innovative model provides new development ideas for the construction of large-scale energy infrastructure.

The preliminary preparation work is solid and orderly

The deep involvement of China Power Construction Northwest Institute in this project can be traced back to an earlier period. In March 2023, the institute undertook the environmental impact assessment of the project and completed the pre feasibility study, feasibility study, and review of three major topics in the same year. In December 2024, Northwest Institute, together with two affiliated enterprises, successfully won the bid for the EPC general contracting project of the power station construction period for 319 million yuan, and orderly promoted pioneering projects such as site leveling and temporary road construction.

These solid preliminary works have laid a solid foundation for the smooth implementation of the main project, and also reflect the professional strength and rich experience of China Northwest Electric Power Construction Institute in the field of pumped storage power station construction.

The regional market position continues to consolidate

According to statistical data, Northwest Institute of China Electric Power Construction has occupied about 70% of the market share in pumped storage projects in Shaanxi Province, demonstrating an absolute advantage in this field. In the first half of 2025, the hospital's operating performance will be outstanding, with a net profit exceeding 300 million yuan. Within the power construction system of China, except for the first tier units such as East China Institute and Chengdu Institute, Northwest Institute continues to maintain a leading position in the second tier.

Since the second half of this year, China Power Construction Northwest Institute has won multiple major projects and maintained a steady business development trend. The successful acquisition of the EPC general contracting project for Dazhuangli Pumped Storage Power Station will further consolidate its dominant position in the clean energy construction market in the northwest region and add important weight to China Power Construction's strategic layout in the field of pumped storage.

The smooth progress of this project will have a profound impact on optimizing the energy structure of Shaanxi Province, ensuring the safe and stable operation of the power grid, promoting local economic development, and providing new practical cases for the development of China's pumped storage industry. Editor/Yang Beihua