A recent release from the Weining County government has revealed that solar cell and module manufacturer DAS Solar is entering the back-contact (BC) domain, having submitted plans for a 5 GW high-efficiency BC cell facility in Bijie, Guizhou Province. According to the document, one of DAS Solar’s subsidiaries has submitted an environmental impact assessment for the facility, which is planned to be built on 0.18 km² of land in Weining County. The project is currently in the public consultation phase, with further details yet to be announced.
DAS Solar recently announced that its DBC cell, which combines TOPCon and BC, achieved a conversion efficiency of 27.77% (see China Solar PV News Snippets).
Energy storage manufacturer Sigenergy has updated its prospectus filed with the Hong Kong Stock Exchange (HKEX), revealing significant business growth. The latest version shows the company achieved revenues of RMB 1,329.8 million ($185.4 million) and net profit of RMB 83.85 million ($11.7 million) in 2024. For January through April 2025, the company reported revenues of RMB 1,206.4 million ($168.2 million) and a net profit of RMB 187.22 million ($26.1 million).
Revealing details about its products, the company states that its flagship product, the 5-in-one solar-storage-charging integrated system SigenStor, has shipped a cumulative 880 MWh. Shipments were 447 MWh in 2024, nearly matched by 443 MWh in just the first 4 months of 2025.
The company’s current annual design capacity exceeds 310,000 inverters and 4.3 GWh of energy storage cells. While fundraising details have not been disclosed, the prospectus states proceeds will be allocated to expanding R&D, marketing, and capacity. Construction has begun on its inverter and storage PACK plant in Nantong, Jiangsu, which is scheduled to start operations in 2026 with 10 GW of inverter and 5 GWh of storage PACK capacity.
Sigenergy recently topped out its mass production base for smart solar-storage-charging systems in Nantong, Jiangsu Province (see China Solar PV News Snippets).
China’s National Development and Reform Commission (NDRC) and National Energy Administration (NEA) have jointly issued guidelines on advancing ‘AI+’ in high-quality energy development. The document emphasizes the application of artificial intelligence (AI) in renewable energy, aiming to establish an integrated AI-energy innovation system by 2027 and to lead globally by 2030.
Key directions include AI applications in high-precision power forecasting, electricity market trading, intelligent operations and maintenance (O&M) of renewable plants, and energy planning. The policy also supports virtual power plants (VPPs), distributed energy storage, vehicle-to-grid interaction, intelligent operation of new energy storage systems, AI-optimized renewable hydrogen production, and the development of zero-carbon parks and smart microgrids to achieve integrated operation and local consumption of renewable energy.
The NDRC has released draft revisions to 4 power pricing regulations: the Transmission and Distribution Cost Pricing Supervision Measures, Provincial Grid Transmission and Distribution Pricing Measures, Regional Grid Transmission Pricing Measures, and Interprovincial/Interregional Special Project Transmission Pricing Measures.
Key points specific to the renewable section include:
Introducing 2-part or capacity-only tariffs for projects primarily transmitting clean energy, in order to boost channel utilization and optimize power allocation across regions;
Applying capacity-only tariffs to emerging business models such as local renewable consumption, ensuring stable supply from public grids while promoting renewable development and utilization.
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