Sinovoltaics Launches Mainland China Transformer Factory Map to Help Solar Developers Overcome Transformer Supply Bottlenecks

The free annual resource includes listings for 128 transformer factories in mainland China.

Hong Kong – March 17, 2025 -- Sinovoltaics, a Dutch-German Battery Energy Storage (BESS) and solar photovoltaic (PV) technical compliance and quality assurance service firm, has released its first annual Mainland China Transformer Factories Map. With growing concerns over transformer supply disruptions and lengthy lead times for delivery to solar projects, Sinovoltaics’ comprehensive transformer directory provides critical insights into manufacturers, locations, and contact details. The report empowers industry stakeholders to view a comprehensive list of transformer factories for more efficient transformer procurement.

Transformers are the backbone of solar PV projects, converting and stabilizing electricity for grid integration. Without them, even the most advanced solar projects cannot deliver power to the grid. However, global supply chain disruptions, rising raw material costs, and surging demand have led to severe transformer shortages, causing significant project delays. According to the National Association of Electrical Manufacturers (NEMA), transformers are currently experiencing unprecedented demand, resulting in three-year procurement lead time, delaying solar and renewable energy projects.

“The ability to source transformers efficiently is now a top priority for solar and energy storage developers," said Arthur Claire, Sinovoltaics’ Director of Technology. "Our Mainland China Transformer Factories Map offers a strategic advantage. We hope this resource will help renewable energy companies to identify and connect with suppliers directly, reducing procurement bottlenecks and helping timelines stay on track.”

Sinovoltaics' map and directory features a regional map and a directory of transformer factories across China, covering both major and emerging manufacturers. The directory includes the manufacturer’s brand name, province, website, and a contact email address. Currently, the list is limited to Chinese factories, but may be expanded to other countries in subsequent editions.

In addition to providing this transformer information resource, Sinovoltaics offers independent inspection and quality assurance services for solar developers to verify their orders’ manufacturing quality and compliance with international standards. With more manufacturers having supply shortages and high demand, Sinovoltaics’ transformer QA inspectors reduce the risk that defective transformers will cause additional projects delays when procured transformers need replacement for quality issues.

Sinovoltaics’ Mainland China Transformer Factories Map is available now at: https://sinovoltaics.com/sinovoltaics-mainland-china-transformer-factories-map/.

About Sinovoltaics
Since 2009, Sinovoltaics, a Dutch-German Battery Energy Storage (BESS) and solar photovoltaic (PV) technical compliance and quality assurance service firm, has been a pioneer in the BESS and solar photovoltaic industries. With our SELMA (Sinovoltaics EL Mass Analysis) software and industry leading Zero Risk Solar® guarantee, our mission is to eliminate all photovoltaic and BESS product defects, enabling investors and the world to succeed with minimal investment risks.

Sinovoltaics’ services include quality assurance inspections, factory audits, Environmental, Social, and Governance (ESG) reports, and traceability audits for utility solar developers and investors. The company maintains a global presence with offices in Switzerland, the United States, Hong Kong, mainland China and Vietnam, as well as factory inspection and audit teams strategically located in Vietnam, Türkiye, Thailand, China, Malaysia, Cambodia, South Korea, India, U.S., and other key manufacturing bases.

Media Contact
Tor Valenza
tor@sinovoltaics.com

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