Sigenergy Tops Out Nantong Smart Manufacturing Hub, Advancing Global Expansion – Asia Pacific

As one of Sigenergy’s core production bases, the new Nantong Smart Manufacturing Hub will play a pivotal role in the company’s globalisation strategy, supporting large-scale delivery of inverters, residential and C&I energy storage systems (PACK), and energy gateways.

August 28, 2025. By Dineshwori

Sigenergy has announced the topping-out of its smart manufacturing hub in Nantong, Jiangsu, China, marking a major milestone in the company’s global manufacturing expansion. Following the groundbreaking earlier this year, the project has reached another key stage toward production, bringing the facility closer to operational readiness.  
 
As one of Sigenergy’s core production bases, the Nantong Smart Manufacturing Hub will play a pivotal role in the company’s globalisation strategy, supporting large-scale delivery of inverters, residential and C&I energy storage systems (PACK), and energy gateways. Once completed, the facility is expected to produce over 300,000 units annually, providing strong manufacturing support to meet growing demand worldwide.
 
The facility, spanning approximately 7.67 hectares and backed by an investment of around USD 70 million, will feature modern production workshops, an R&D and design centre, warehouses, a comprehensive office building, and supporting infrastructure.
 
Designed as a next-generation smart factory, the Nantong hub integrates production, R&D, logistics, and operations in line with global best practices. It will also set benchmarks in intelligent and digital manufacturing, incorporating a fully digitalised, closed-loop system and a full lifecycle quality traceability framework across the supply chain, production, and logistics, ensuring that every process is visible, traceable, and controllable.
 
Sigenergy continues to advance both capacity expansion and product innovation. Its portfolio covers the world’s first 5-in-1 solar-storage-charging system (SigenStor), advanced C&I solar-storage solutions, and a full range of residential hybrid inverters and microinverters. 

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