Shanghai Electric Power Generation Equipment Co., Ltd. Power Station Auxiliary Equipment Plant (SAP) was founded in 1980. It is China's largest professional manufacturer and solution provider of power station auxiliary equipment and pressure vessels, having successively introduced advanced technologies from Foster Wheeler, Syney, Sterling, Stork, and Siemens. It maintains a leading position in China in areas such as solution design, manufacturing processes, and quality control.

The company traces its origins to the birthplace of modern Chinese industry—the Yangshupu Road area along the Huangpu River—with a history spanning over 80 years. Its predecessor was the Shanghai Boiler Works. In 1980, Shanghai Power Station Auxiliary Equipment Works was established to meet the needs of specialized production. In April 2007, the company has been renamed as Shanghai Electric Power Generation Equipment Co., Ltd. Power Station Auxiliary Equipment Plant (SAP) after Shanghai Electric Power Generation Group and Siemens formed a joint venture. In January 2019, to support the government's waterfront development initiative and facilitate its own growth, the company underwent relocation and transformation, establishing a new structure comprising one center (operational center) and one factory (Lingang Factory). The operational center is located at No. 621 Longchang Road, Yangpu District, covering an area of nearly 17,000 square meters. It primarily focuses on technological R&D, market sales, project management, and comprehensive services. Lingang factory is located at No. 186 Yitian Road, Pudong New Area, spanning approximately 210,000 square meters.

SAP specializes in manufacturing high-temperature, high-pressure tube heat exchangers and provides a wide range of equipment for 25MW to 1300MW nuclear and thermal power units (including supercritical and subcritical). Its products include high- and low-pressure heaters, condensers, high- and low-pressure deaerators and storage tanks, closed-cycle water heat exchangers, turbine bypass systems, high-temperature and high-pressure power station valves, chemical water treatment equipment, and nuclear energy vessels. SAP has achieved numerous domestically leading and world-class accomplishments across diverse fields such as thermal power, nuclear power, equipment, service, seawater desalination, water treatment, air-cooling system, energy storage, and solar thermal applications. It is China's largest specialized designer and manufacturer of power station auxiliary equipment, offering the most extensive product range and the highest market coverage. As the first domestic enterprise to enter the nuclear power sector, it has successfully developed conventional island and nuclear island equipment for 300MW to 1000MW nuclear power units. It remains the only large-scale, top-tier national enterprise in China's power station auxiliary equipment industry and ranks among Shanghai's Top 100 Industrial Enterprises and China's Top 500 Machinery Industry Enterprises. SAP holds over 40% of the domestic market share for large auxiliary equipment designed and manufactured for 300MW to 900MW power units, solidifying its position as a leading and internationally influential pioneer in the power station auxiliary equipment industry.

SAP holds a range of certifications including the National Special Equipment Pressure Vessel Rule Design License, A1 Manufacturing License, Civil Nuclear Safety Equipment Manufacturing License, Civil Nuclear Safety Equipment Design License, ASME U and U2 Pressure Vessel Design and Manufacturing Authorizations with Code Stamps, and GB/T 19001-ISO 9001 Quality System Certification. It has also been recognized as a Green Factory and an Advanced Smart Factory.

In recent years, coil tube high-pressure heaters have gradually replaced U-tube designs, becoming the preferred choice for high-parameter, large-capacity power units. With their broad application scenarios, adaptability to frequent start-stop operations, and wide-load operating conditions, these heaters demonstrate strong operational flexibility and have become the prevailing trend in heat exchangers for the coal power market. In the nuclear sector, SAP was among the first equipment manufacturers to successfully obtain design and manufacturing licenses for nuclear Class 2 and 3 vessels. It has cultivated a team of technical experts and chief technicians with extensive manufacturing experience. SAP maintains long-term collaborations with major nuclear enterprises such as China General Nuclear Power Group (CGN), China National Nuclear Corporation (CNNC), State Nuclear Power Technology Corporation (SNPTC), as well as leading nuclear design institutes, undertaking pioneering projects including market-first trial manufacturing of nuclear Class 2/3 vessels and heat exchangers, manufacturing process research, and localization initiatives. SAP has received "Excellent Supplier" evaluations from CGN and CNNC, as well as high praise from customers.

Currently, SAP consistently ranks first in the number of auxiliary equipment units in operation, with the cumulative number of commissioned units nearly equaling the combined total of the second, third, and fourth competitors. Over the past decade, according to the annual National Electric Power Reliability Reports released by the China Electricity Council, SAP has consistently demonstrated the lowest forced outage rate, the fewest forced outage hours, and the minimal impact attributable to equipment factors. This proves that our equipment, while supplied in volumes multiples of our competitors, stands the test of time with enduring reliability.

Entering the new journey of the "15th Five-Year Plan" period, SAP and Auxiliary Sector will closely align with the core requirements of Shanghai Electric Group—"serving national strategies, cultivating new quality productive forces, and achieving high-quality development." Focusing on "digitalization, intellectualization, technological innovation, and lean management," SAP is committed to building a discrete-type digital super factory in the Lingang New Area. Through these efforts, SAP will continuously enhance its core competitiveness and strive to become a lighthouse enterprise in the heat exchange industry.