Jinko ESS has launched the Dolphin 520 kWh Battery Energy Storage System (BESS)

Jinko ESS has launched the Dolphin 520 kWh Battery Energy Storage System (BESS) , a modular and scalable solution targeting commercial and industrial users. Designed to meet the growing energy demands of factories, business parks, and commercial facilities, the system supports China’s dual carbon goals while addressing energy flexibility, safety, and cost efficiency. The Dolphin BESS features a high-capacity 314 Ah cell, flexible AC output options, and a modular design for easy deployment across diverse environments. It supports grid-connected, off-grid, and microgrid operations, with scalability for expanding energy needs. The system is equipped with advanced safety features, including multilayer protection, fire detection, and thermal management. Jinko claims the Dolphin reduces costs by over 10% and increases installation efficiency by 40%. Shipments for global markets are expected to begin in Q3 2025 .

Data Extracted:

Product Specifications:

1. Storage Capacity:

   • 520 kWh DC system

2. Battery Cell:

   • High-capacity 314 Ah cell

3. AC Output Options:

   • 125 kW for four-hour discharge

   • 250 kW for two-hour discharge (three-phase four-wire configuration)

4. Scalability:

   • Supports 1 to 12 units for grid-connected and off-grid operations

   • Expandable storage capacity to match evolving energy needs

5. Modes of Operation:

   • Seamless switching between grid-connected , off-grid , and microgrid modes

6. Applications:

   • Peak-valley electricity arbitrage

   • Emergency backup power

   • Renewable energy integration

   • Autonomous microgrid operation

Design and Deployment:

1. Modular Design:

   • Enables “plug-and-play” deployment across diverse environments (urban rooftops, remote deserts, coastal zones)

   • Standardized, integrated module production

2. Installation Efficiency:

   • Reduces costs by over 10%

   • Increases installation efficiency by 40% , shortening construction timelines

Safety Features:

1. Multilayer Protection Framework:

   • Certified to GB, IEC, and UL standards

2. Fire Safety:

   • Integrated fire detection and suppression system with early hazard warnings and rapid response capabilities

3. Thermal Management:

   • Intelligent thermal management mechanism

   • Multi-tier smart monitoring platform for constant performance surveillance

Market and Availability:

1. Target Market:

   • Commercial and industrial users (factories, business parks, commercial facilities)

2. Global Launch:

   • Available for global markets

   • Shipments begin in Q3 2025

3. Previous Offering:

   • Jinko previously offered the SunGiga liquid cooling battery cabinet with a full configuration capacity of 344 kWh

Key Benefits:

1. Energy Flexibility:

   • Supports peak electricity arbitrage, renewable integration, and microgrid autonomy

2. Cost Efficiency:

   • Reduces system costs through standardized production and modular design

3. Performance Stability:

   • Adaptable to manufacturing, commercial operations, and renewable energy consumption scenarios

4. Long-Term Solution:

   • Scalable and dynamic energy planning for evolving facility needs