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Hainan, China – The first unit of the Hainan Nuclear Power Base has entered its seventh refueling overhaul, marking a significant milestone in the facility’s operational history. According to a release from China National Nuclear Corporation (CNNC) Hainan Nuclear Power Co., Ltd. on September 1, the Unit 1 of the base’s Phase I project was disconnected from the Hainan Power Grid in the early hours of the morning to commence the extensive maintenance work.

Background and Significance

The Hainan Nuclear Power Base, located in Changjiang, Hainan Province, is a critical component of China’s strategy to diversify its energy portfolio and reduce reliance on fossil fuels. Since its inception, the base has been providing a substantial amount of clean energy to the region, playing a pivotal role in the province’s energy security and environmental sustainability efforts.

Refueling Overhaul Details

Critical Maintenance

The refueling overhaul is one of the most crucial maintenance activities in the nuclear power plant’s lifecycle. Conducted every 18 months, the process involves replacing approximately one-third of the nuclear fuel in the reactor. This ensures the plant continues to operate efficiently and safely within its designed lifespan.

Maintenance Schedule

The current overhaul is scheduled to last approximately one month, with a total of 5733 maintenance items planned. These include 4073 preventive maintenance tasks, 457 regular tests, 220 technical modifications, and 983 other tasks. The overhaul is structured around 14 key milestones to ensure that each aspect of the maintenance is completed on schedule and to the highest standards.

Impact on Energy Supply

The Hainan Nuclear Power Base’s Phase I project consists of two units, which have been providing 9 billion to 10 billion kilowatt-hours of clean energy annually to Hainan Province. This accounts for about one-third of the province’s total electricity consumption. The base’s operations have also significantly contributed to reducing carbon dioxide emissions by approximately 870,000 tons each year.

Technological Advancements and Safety

The refueling overhaul not only focuses on replacing nuclear fuel but also involves a comprehensive inspection and maintenance of the unit’s systems and critical equipment. This ensures that the plant operates safely and efficiently, adhering to the highest international standards. The CNNC has always emphasized safety as a top priority, implementing stringent protocols and state-of-the-art technology to monitor and manage the plant’s operations.

Future Prospects

With the successful completion of the seventh refueling overhaul, the Hainan Nuclear Power Base is set to continue its vital role in providing clean energy to the region. The base’s ongoing operations and maintenance activities underscore China’s commitment to nuclear power as a key component of its energy strategy, balancing economic growth with environmental stewardship.

Conclusion

The Hainan Nuclear Power Base’s Unit 1 entering its seventh refueling overhaul is a testament to the facility’s operational excellence and China’s dedication to sustainable energy development. As the base continues to contribute to the province’s energy needs, it also paves the way for future advancements in nuclear technology and environmental protection.


For more information, please visit Hainan Nuclear Power Base Refueling Overhaul.


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