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JinkoSolar Launches SunGiga Liquid-cooling ESS for C&I in PV Japan


Following the successful launch of SunTank residential ESS in Japan last year, JinkoSolar is now bringing its new liquid cooling energy storage system for C&I application and showcasing it in this year’s PV Japan 2023.

The liquid cooling system for more even heat dissipation and highly intelligent auto control system results in temperature differences between individual batteries within 2°C. This extends the lifetime of batteries, increasing capacity by 10% and significantly improving the charging and discharging efficiency. This improvement can increase RTE by 2%.

Compared with conventional air-cooling designs and liquid cooling solutions, which come with a battery temperature difference within 2°C, JinkoSolar’s new SunGiga has an intelligent frequency conversion control design and multiple liquid cooling control modes. This lowers consumption by 30%. Additionally, compared with standard air-cooling systems, SunGiga has a higher space utilisation rate, which has increased by 38%. The modular and pre-assembled design makes installation and maintenance as well as future capacity augmentation extremely easy and fast.

Safety is the top principle of SunGiga’s design and engineering. In addition to the enhanced liquid cooling system, it also offers comprehensive multiple layers of safety protection from the cell, electrical, and system levels. Intelligent cell monitoring technology performs high-precision online computing of cell status and provides early-stage warnings to prevent thermal runaway. The automatic state of charge (SoC) calibration improves system reliability and reduces operating and maintenance (O&M) costs.

JKE344K2HDLA C&I ESS cabinet has a maximum capacity of 344kWh, with a liquid cooling unit and 8 battery modules. It is designed for the mainstream C&I market—a portfolio with a battery capacity ranging from 500kWh to 2MWh and is available in two and four-hour applications. The system combines lithium-ion batteries, switchgear, a fire protection system, and PCS. According to customer requirements, the total energy capacity of each battery cabinet can be tailored to achieve the best economics for a specific project.

JinkoSolar has become one of a few companies offering both highly efficient n-type TOPCon PV panels and ESS solutions. The Company’s solar-plus-storage comprehensive solution optimized for C&I markets will ensure lower power pricing and energy security.