Construction is accelerating at the Wazhuang-Raoshan 220-kilovolt power line project in Sanming City, Fujian Province, with completion scheduled for December this year. This initiative will elevate Sanming's power grid to new heights, providing robust energy support for the high-quality development of the Sanming Revolutionary Base Area Demonstration Zone. According to Chen Long, Chief Engineer of State Grid Sanming Power Supply Company, the project is part of the implementation of the cooperation framework agreement to deepen the "Double Satisfaction" project and serve Sanming's high-quality development during the 15th Five-Year Plan period. The project involves constructing an 85.6-kilometer power line to connect the 220kV Wazhuang substation in Ninghua County with the 220kV Raoshan substation in Jianning County. This will enable bidirectional power supply connectivity between the two counties and integrate with Sanming's 220kV main grid structure, forming a large loop network. This setup ensures multi-directional and multi-circuit power supply during emergencies, effectively eliminating the issue of power supply "islands."
Prior to the Spring Festival, the Sanming Municipal Government signed the cooperation framework agreement with State Grid Fujian Electric Power Company to accelerate the high-quality development of the Sanming Revolutionary Base Area Demonstration Zone and jointly advance the modernization of Sanming. The agreement specifies that during the 15th Five-Year Plan period, State Grid Fujian Electric Power will support Sanming in building a nationally leading power grid demonstration zone for revolutionary base areas, aiming for power supply reliability to reach top levels among such areas. Key tasks include completing several major projects, such as the Fujian Sanyang-Taoyuan second 500kV line project, the Wazhuang-Raoshan 220kV line project, and the modification of the Sanming Taoyuan-Zengtian III line to connect to the Liangyuan substation. The agreement also emphasizes precise integration with the Yong'an and Jiangle Guangming pumped storage power stations to accelerate the formation of the green energy base in northwestern Fujian. Additionally, efforts will focus on upgrading the distribution network to enhance urban-rural coordination and improve public power supply guarantees.
Economic development relies on power infrastructure. During the 14th Five-Year Plan period, Fujian's power grid achieved significant upgrades, marked by three major advancements. The main grid structure improved with the commissioning of landmark projects like the Fuzhou-Xiamen ultra-high-voltage line, forming a "four vertical, three horizontal" 500kV main grid. Fujian's power grid has evolved into a regional hub connecting the Yangtze River Delta and the Guangdong-Hong Kong-Macao Greater Bay Area, with annual electricity sales exceeding 300 billion kWh for the first time. Grid integration capacity also advanced, with installed capacity surpassing 100 million kW historically, peak load exceeding 55 million kW, total electricity consumption surpassing 350 billion kWh, and outbound electricity transmission reaching 98.1 billion kWh. Power supply quality improved significantly, with a substantial reduction in average power outage duration per household and repeated achievements in rapid power restoration. Clean energy accounted for 66% of installed capacity and 54% of electricity generation.
As a revolutionary base area, all 11 counties in Sanming are recognized as former Central Soviet Area counties. In 2021, the State Council designated Sanming as a high-quality development demonstration zone for revolutionary base areas. During the 14th Five-Year Plan period, Sanming's power grid investment reached 5.837 billion yuan, a 13.1% increase compared to the 13th Five-Year Plan period. Substation capacity grew by 2.3796 million kVA, and power lines increased by 1,094 km, representing increases of 26.37% and 18.56%, respectively, from the end of the previous plan. The grid now features a 220kV main loop structure supported by the 500kV Sanyang and Taoyuan substations. All 10kV lines in the 11 counties are interconnected, and cross-regional power mutual assistance and emergency support mechanisms have been established with neighboring provinces and cities, forming a smart, multi-level, and coordinated "large grid" system.
At the start of the 15th Five-Year Plan period, the signing of the cooperation framework agreement between the Sanming Municipal Government and State Grid Fujian Electric Power Company holds profound significance. The two parties will deepen cooperation in nine areas, including building a new power system, accelerating high-quality grid development, improving grid development coordination mechanisms, enhancing power supply reliability, optimizing the business environment, promoting power demand-side management, advancing energy big data center construction, and exploring new financial service models.
Chen Long stated that during the 15th Five-Year Plan period, Sanming's power grid investment is expected to reach 8.165 billion yuan, with plans to construct or expand 59 substations, add 1,686 km of transmission lines, 352,600 kVA of distribution transformer capacity, and 2,557 km of distribution lines. The central government has emphasized achieving carbon peak and carbon neutrality goals during the 15th Five-Year Plan period and initially establishing a new energy system. Sanming, known as the "Green Capital," boasts a forest coverage rate of 77.12%. The agreement prioritizes building a new power system as a key task, marking a highlight of the partnership.
Over the next five years, the Sanming Municipal Government and State Grid Fujian Electric Power Company will accelerate the construction of an "Electric Sanming" city, promote a new power system characterized by "clean, low-carbon, safe, sufficient, economical, efficient, supply-demand协同, flexible, and smart" features, and facilitate energy conservation and carbon reduction across various sectors to support carbon peak and carbon neutrality goals.
During the 14th Five-Year Plan period, Sanming focused on high-quality development of new energy and accelerated the green transformation of its power grid. Aligning with carbon peak targets, the city introduced the "Sanming Blue Sky, Clear Water, and Pure Land Project Action Plan," incorporating end-use energy re-electrification and promoting green alternatives in industrial, commercial, and agricultural sectors. Leveraging local resources, Sanming established a coordinated mechanism involving government leadership, grid initiative, and user participation to scale up the new power system. Supportive policies were issued by the Sanming, Taining, and Jianning governments, leading to the development of microgrid projects with mountainous characteristics, such as the "Zero-Carbon Dajin Lake" in Taining, across townships, scenic areas, and industrial parks.
The "photovoltaic+" construction model was promoted, alongside mechanisms to manage photovoltaic capacity. Efforts were made to guide the rational layout of new energy and energy storage projects. All 10 county-level governments introduced policies to support distributed photovoltaic development. Through grid equipment upgrades, encouragement of user-side energy storage facilities, and improved local consumption capacity, regional clean energy achieved 100% full consumption. Electric vehicle development was vigorously promoted, with optimized charging facility installation services ensuring public charging coverage across all 128 administrative townships. For six consecutive years, forest-power safety joint meetings were held, exploring a mutually beneficial cooperation model among residents, enterprises, and the government. A total of 42 biological firebreak forest belts, spanning 45 km and covering 1,635 acres of forest area, were established to eliminate conflicts between power lines and trees at the source.
Proactive services were provided for key provincial and municipal projects, including the "Shanghai-Sanming Power Direct Express" service. A dedicated customer manager system was established for 60 Shanghai-Sanming cooperation enterprises, offering end-to-end services from consultation to connection, achieving cross-provincial power handling with "one-stop acceptance and multi-region coordination," cumulatively saving enterprises approximately 150 million yuan in costs.
By the end of the 14th Five-Year Plan period, Sanming's total installed power generation capacity reached 5.1428 million kW. Clean energy installed capacity accounted for 4.5358 million kW, or 88.2% of the total, an increase of about 5 percentage points from the end of the 13th Five-Year Plan period, driven largely by significant growth in photovoltaic capacity.
According to sources from State Grid Fujian Electric Power Company, the company has signed cooperation framework agreements with all nine prefecture-level cities in Fujian. The parties will implement the 15th Five-Year Plan energy规划, integrate power-specific planning and power facility layout into local territorial spatial planning, and collaboratively build a new power system that is clean, low-carbon, safe, sufficient, economical, efficient, supply-demand协同, flexible, and smart. Further exploration will focus on new technologies, formats, and models for source-grid-load-storage coordination, including smart microgrids, low-carbon/zero-carbon parks, vehicle-grid interaction, and virtual power plants. Advanced planning will address power collection and transmission channels for offshore wind power in southern and northeastern Fujian, supporting the development of over 10 million kW of new offshore wind capacity. Jiangle County will be developed as a comprehensive demonstration zone for the new county-level power system, aiming to basically establish a climate-resilient, secure, flexible, and robust new power system by 2030.
By the end of the 15th Five-Year Plan period, Sanming's clean energy installed capacity is expected to reach 6.8 million kW, accounting for approximately 91.8% of the total installed capacity. Photovoltaic capacity is projected to increase to 32% of the total clean energy installed capacity.