Desay Battery Named to BNEF Tier 1 Global Energy Storage Manufacturers List in Q1 2025

BloombergNEF (BNEF), a globally authoritative research institution in renewable energy, officially announced the Q1 2025 Global Tier 1 Energy Storage Manufacturers List on January 24, 2025. Desay Battery (DESAY) has been recognized as a Tier 1 manufacturer for its exceptional product quality, deep technological expertise, reliable project delivery, and expanding global brand influence.



This accolade underscores Desay Battery’s leadership in the energy storage industry, validated by stringent criteria including innovation capabilities, market impact, financial stability, and operational excellence.

Breakthroughs in Energy Storage Technology

314Ah Energy Storage Cell

• High Capacity & Efficiency: Nominal capacity of 314Ah (actual tested mean >324Ah), energy density up to 178Wh/kg, and energy efficiency ≥95% .
• Safety & Longevity: Passed rigorous nail penetration and thermal runaway tests; achieves 12,000 cycles at 25°C standard conditions .

5MWh Energy Storage System

• High Integration: Increases energy density by 45% compared to traditional 3.35MWh systems, with a 33% improvement in system-level energy density.
• Innovative Design:
  • 20-foot standardized container compliant with global shipping requirements.
  • AB cabinet design reduces footprint by 43%; drain-free liquid cooling pipelines enhance operational efficiency by 18%.
  • Seven-Layer Safety Protection: Combines pack-level fire suppression, explosion venting, perfluorohexanone fire suppression, and water-based fire protection .

Landmark Project Deliveries

1. Guizhou 100MW/200MWh Independent Shared Energy Storage Project (Nov 2023): Successfully grid-connected.
2. Huizhou 3.5MW/7.525MWh Project (Dec 2023): Passed acceptance; Ningxia 100MW/200MWh Project completed.
3. Shandong 200MW/400MWh Station-Style Energy Storage System (Feb 2024): Operational.
4. Shenghong Tech Industrial Park 121MW/630MWh ESS (July 2024):
   • Largest user-side energy storage project in China under planning.
   • Utilizes 280Ah LFP cells; deploys 1,689 battery cabinets across 47 battery rooms.
   • Expected annual discharge: 170 million kWh.
5. Hunan Meite New Materials ESS Project (July 2024):
   • Largest commercial & industrial (C&I) energy storage project in Hunan’s state-owned sector.
   • Features sodium-ion battery cabinets, a first for Desay Battery .

Global Expansion & Future Vision

Desay Battery has solidified its position in domestic energy storage markets while achieving breakthroughs in overseas markets. Its solutions are now deployed across multiple regions, supporting the global energy transition and sustainable development.

In 2025, Desay Battery continues to prioritize R&D investment and strategic industry partnerships, driving innovation in energy storage technologies. As a BNEF Tier 1 manufacturer, Desay Battery remains committed to advancing safe, efficient, and cost-competitive solutions for the global energy storage ecosystem.

About Desay Battery
A pioneer in energy storage, Desay Battery specializes in lithium-ion cells, ESS integration, and smart energy management systems. Its portfolio spans grid-scale storage, C&I applications, and residential solutions, empowering a zero-carbon future.