On October 9, the LONGi Energy Storage Intelligent Manufacturing Base was officially inaugurated in Suzhou High-Tech Zone. The base serves both domestic and international markets. It handles the manufacturing, testing, quality inspection and delivery of commercial and industrial (C&I) and utility-scale energy storage products, further improving LONGi Energy Storage’s large-scale manufacturing and global delivery system.
As the energy storage market moves toward scale and multi-scenario development, manufacturing capability has become a key guarantee for product quality, project delivery and long-term operation. The new base will build on lean management and deeply integrate digital operations and intelligent applications to continuously improve manufacturing efficiency, quality and delivery reliability.The opening of the new base is also an important step in extending the “LONGi ONE” strategy to manufacturing, providing solid support for PV-storage system integration and global business development.
High-Quality Capacity Lays a Solid Foundation for Scaled Delivery
The new base focuses on three major product directions—Utility-scale storage, C&I storage, and Off-grid/Microgrid storage—and accelerates capacity construction across multiple product lines to create a manufacturing layout covering different application scenarios.
Among them, the Utility-scale storage integration line is planned to achieve 31 GWh/year of integrated manufacturing capacity in October 2026 and further expand to 50 GWh/year in the first half of 2027. The C&I energy storage line is planned to reach an annual production scale of more than 10,000 units by the end of October. In addition, the base has set up an off-grid/microgrid energy storage production line to further meet product demand across different markets and application scenarios.
From product line layout to capacity expansion, the new base will continue to strengthen the manufacturing and delivery capabilities of multi-scenario energy storage products, supporting the scaled deployment of global projects.
Building an Efficient Manufacturing System Driven by Digital Intelligence
Digitalization and intelligence are important directions for upgrading the new base’s manufacturing capabilities. In digital operations, the base plans to complete the full upgrade and deployment of its MES system from September to November this year, build a lightweight manufacturing operations management platform based on “MES+BI+AI=MOM,” and connect core business systems such as ERP, WMS and RCS. This will enable automatic issuance of production plans, full-chain material traceability, real-time monitoring of equipment operating efficiency, and visualization of QCDSM lean indicators.
With the support of a manufacturing operations control tower, the base further advances transparent control across the entire process. Through intelligent AGV scheduling, digital warehousing and iTPM predictive equipment maintenance, it improves material distribution and equipment management efficiency. Digital closed-loop quality management will shorten the time needed to close quality issues by more than 50%.
On this basis, the base will focus on advancing three major AI application scenarios:
- Intelligent process execution: ESOP electronic work instruction execution accuracy can reach over 99%, and the training period for new employees is shortened by 50%.
- Intelligent quality inspection: AI full inspection replaces manual sampling, increasing inspection efficiency by 5 to 10 times and keeping the defect escape rate below 0.1%.
- Intelligent equipment O&M: An enterprise-level “Fault Brain” AI knowledge base can shorten troubleshooting time by more than 60% and reduce fault-related downtime losses by 75%.
In addition, the base plans to introduce applications such as AR glasses for on-site work guidance and AI-powered quality early warning, continuously expanding the depth of intelligent technology applications in manufacturing. Through manufacturing data connectivity, production process collaboration and AI technology application, the new base will gradually build a more transparent, efficient and intelligent manufacturing operations system.
Building Long-Term Quality Competitiveness Through Lean Management
Advanced manufacturing capability is reflected not only in capacity scale and technology application, but also in continuous optimization and stable operation of production processes. In lean management, the base fully implements a company-wide Kaizen continuous improvement mechanism. It continuously optimizes production line process layout, production takt time and 5S visual management in the plant, driving manufacturing cost improvement and enhancing operational efficiency and cost competitiveness.
At the same time, digital management will further strengthen the visualization and traceability of the production process, while intelligent technologies support quality control, equipment maintenance and manufacturing decision-making, continuously upgrading manufacturing management from experience-driven to data-driven.
The three-layer architecture of lean, digital and intelligent manufacturing supports and deepens one another, jointly building the base’s core future-oriented manufacturing competitiveness.
Supporting Global Energy Transition Through Solar-Storage Integration
The official opening of the new base is not only an upgrade of manufacturing capability, but also an important measure for LONGi to promote Solar-Storage system integration and implement the “LONGi ONE” strategy.
Dennis She, Vice President of LONGi and President of LONGi Energy Storage, said at the inauguration ceremony that the core of the combination between LONGi and PotisEdge lies in their complementary capabilities in the “Solar” and “Storage” fields. Based on the “LONGi ONE” Solar-Storage integration strategy, LONGi will further drive Solar-Storage from equipment combination to system integration. Through unified design, unified control, unified platform and unified service, it will continuously improve system safety, efficiency and intelligence, creating better full lifecycle value for customers.
The implementation of the intelligent manufacturing base provides important manufacturing-side support for this strategy and will further strengthen LONGi’s product supply and system delivery capabilities for the global market.
Globally, LONGi Energy Storage will continue R&D and innovation focused on the safety, efficiency, lifespan and intelligence of energy storage systems, enhancing product quality and delivery reliability through advanced manufacturing, digital management and quality system development. At the same time, leveraging LONGi’s global market, channel and service systems, it will accelerate layout in key markets such as Europe, North America, Asia-Pacific and the Middle East, and continuously improve localized sales, technical support, project delivery and service capabilities.
From manufacturing capability development to global business layout, LONGi Energy Storage is continuously strengthening its comprehensive capabilities to support the scaled application of PV-storage systems.
With advanced manufacturing, it solidifies the foundation for products and delivery; with system integration, it unlocks the collaborative value of solar and storage. LONGi Energy Storage will adhere to technological innovation, product-first philosophy and long-termism, providing more reliable technology, products and services to support the construction of new-type power systems and the global energy transition.
About LONGi
LONGi Green Energy Technology Co., Ltd. was founded in 2000 and is committed to becoming a world-leading solar and storage technology company. Under the mission of "To make the best of solar energy to build a green world" with a brand positioning of "The most trusted, reliable solar company that blazes the trail for green technology," we deliver holistic, zero-emission new energy solutions spanning the generation, storage, and application of green energy. Driven by continuous innovation, we aim to make green energy more affordable, safer, and more accessible — truly benefiting everyone.
More details here: www.longi.com/