Weekly News

1. World’s First 110kV Energy-Efficient Amorphous Core Transformer Developed

China’s Guangdong Power Grid, Haihong Electric, and academic partners successfully developed the 110kV amorphous alloy 3D wound-core oil-immersed transformer, marking a milestone in high-voltage energy-saving technology. Key features include:  

- 60% reduction in no-load lossesand 5% lower load losses compared to national standards.  

- Enhanced anti-short-circuit capability and noise control via innovative core suspension.  

- Expected to save 120,000 kWh/year per unit(equivalent to 72 tons of CO₂ reduction).  

- Deployed at Hongchang Substation in Shantou, supporting China’s "dual carbon" goals.  

2. China’s Largest 220kV Three-Phase Transformer Passes Tests

XD Xian Electric developed theSFP-1150000/220 transformer for the Shenhua Jiujiang Power Plant expansion, achieving breakthroughs in large-capacity transformers. Highlights:  

- Optimized electromagnetic design and cooling structures reduced leakage-induced overheating.  

- Passed all tests (e.g., insulation, temperature rise) with performance exceeding standards.  

- Supports grid stability in Jiangxi Province and renewable energy integration.  

3. State Grid’s $15.24B Tender for Substation Equipment  

The 2025 State Grid Tender (Batch 8) allocated $15.24 billion for substation equipment:  

- Top transformer suppliers: TBEA (31.1%), Shandong Electric (22.6%), Hitachi Energy (7.7%).  

- Key categories: Gas-insulated switchgear ($439M), power cables ($252M), reactors ($59.8M).  

- Focus on smart grid upgrades and renewable integration, with CR3 concentration exceeding 60% in core categories.  

4. Power Sector Policy and Project Updates

National Energy Blueprint: Target of 36 GW total installed capacity, 20% non-fossil energy share, and accelerated coastal nuclear projects.  

- Grid Expansion:  

 - Guangxi launched 305 high-voltage projects (5,529 km lines, 29.45 GVA capacity).  

 - Shaanxi-Anhui ±800kV UHVDC and other ultra-high-voltage projects entered peak construction.  

- Private Sector Inclusion: New policies encourage private investment in energy infrastructure, including oil/gas exploration and smart grids.  

5. Industry Trends and Innovations  

- Amorphous Alloy Adoption: Haihong Electric’s breakthrough positions China as a global leader in green transformer tech.  

- Hydrogen-Ready Grids: State Grid plans $266B in equipment upgrades, emphasizing resilience and decarbonization.  

- PV Growth: 2024 solar module output rose 12%, driven by export demand and domestic decarbonization efforts.