Energy Storage Market Update — September 2026
September 2026 confirmed one clear direction for the global energy storage industry: utility-scale and AI-data-center storage is expanding fast, and the market is converging on liquid-cooled battery packs, prefabricated cabins and safety-certified enclosures. The signals from every region point to sustained demand for reliable battery thermal-management and structural components.
Overseas Market Highlights
1. 206 GWh Long-Term Supply Framework Signed in the US (Sep 18)
A major Chinese cell manufacturer and a leading US-based energy storage system integrator signed a five-year supply framework covering 2027–2031, with a minimum guaranteed volume of 16 GWh for 2027 plus reserved capacity. Deliveries target utility-scale energy storage and AI data center projects across North America and will rely on local production capacity to meet tariff and FEOC compliance requirements.
- Business insight: Rapid expansion of North American data center storage is boosting demand for liquid-cooled battery packs and bottom enclosures.
- Buyers are placing greater emphasis on product certifications and compliance documentation.
2. Poland’s 600MW/2.4GWh Large-Scale Storage Project Breaks Ground (Sep 24)
A European renewable energy developer launched its Siedlce battery energy storage plant, one of Poland’s largest BESS projects, scheduled for commissioning by the end of 2027. The project is expected to drive procurement of BESS equipment across Europe.
- Business insight: The European utility storage market keeps growing.
- EU safety standards and liquid-cooling thermal management have become mandatory tender requirements — a key target market for advanced enclosure suppliers.
3. South Korea Launches 1,180MW Storage Tender; Sodium-Ion Gains Traction (Late Sep)
South Korea opened a large tender for utility-scale energy storage, with local system integrators sourcing cells and structural components from global suppliers. In parallel, a Chinese sodium-ion battery maker sealed a 10 GWh, five-year sodium-ion supply deal with a South Korean energy company. Both lithium-ion and sodium-ion storage solutions are now being deployed in the Korean market.
- Business insight: Active storage bidding in South Korea creates opportunities for battery enclosures used in buses and energy storage systems.
- Local customers prioritize sample validation and consistent long-term delivery.
Domestic China Market Highlights
4. Authority Forum on New Energy Storage Accelerates Mandatory Safety Standards (Sep 23)
An industry forum addressed new energy storage development and supports the work of the upcoming national five-year plan for new batteries. Authorities will roll out mandatory national safety standards for energy storage systems to improve product reliability and thermal safety, and to regulate quality issues in the sector.
- Business insight: Thermal management, structural strength and safety test reports for battery enclosures are increasingly required by both domestic and overseas buyers.
- Safety certification of liquid-cooled enclosures is becoming a decisive selling point.
5. Multiple Provinces Clean Up Unfinished Storage Projects (End of Sep)
Several provinces revoked non-compliant energy storage projects and banned trading of project permits, while refined rules for capacity compensation of standalone energy storage were released. Low-quality projects are being phased out, making tenders more rational.
- Business insight: The bubble in China’s energy storage sector is deflating.
- Customers are more cautious with orders and prefer reliable component suppliers with stable on-time delivery.
6. 200MW/400MWh Standalone Storage Station Connected to Grid in Huizhou (Sep 24)
This landmark South China storage station adopts a prefabricated cabin design, equipped with liquid-cooling temperature control and cabin-level thermal isolation fire protection to mitigate thermal runaway propagation.
- Business insight: Prefabricated cabins paired with liquid-cooled battery packages remain the mainstream solution for utility-scale energy storage in China.
- This sustains steady demand for liquid-cooled battery bottom enclosures.
Market Summary
Across all four markets the theme is consistent: liquid-cooled, safety-certified battery enclosures and dependable on-time component supply are becoming the deciding factors for BESS tenders.
About Trumony
Trumony Aluminum Limited is a professional manufacturer specializing in aluminum materials and thermal-management solutions, including aluminum sheets, plates, tubes, liquid cooling plates and battery pack housings. Serving the new energy vehicle and energy storage industries, our project team provides end-to-end support — from design, simulation and optimization to molding, prototyping, delivery and system integration — tailored to each customer’s requirements.
Backed by in-house extrusion, welding and fabrication capabilities, Trumony helps customers shorten development cycles and bring reliable, cost-effective battery enclosures to market faster.
Our Battery Enclosure & Liquid Cooling Solutions
- Liquid cooling plates — stamped, vacuum-brazed and roll-bonded micro-channel cold plates for EV battery packs and containerized BESS.
- Battery bottom enclosures — aluminum and steel-frame housings from 24S to 416S, with integrated liquid-cooling channels for commercial vehicles and utility storage.
- Battery pack boxes & top covers — friction-stir-welded (FSW) and extruded structures, IP68 options available, with in-stock units for fast delivery.
- Custom aluminum extrusions — tailored profiles, sheets and tubes with anodizing and precision machining.
