ESS plays a key role in new energy systems, prompting rapid market growth around the world. Wood Mackenzie’s report shows global energy storage capacity could grow at a compound annual growth rate, recording 741 gigawatt-hours (GWh) of cumulative capacity by 2030. This being said, occasional safety accidents persist at battery energy storage plants, putting staff at risk and causing serious economic losses.
Lithium batteries are the core components of a battery energy storage system (BESS). Internal and external sources may quickly increase the temperature of battery cells, leading to thermal runaway. This can release flammable and explosive gases, causing fires or even explosions. Normally, there are several issues that may lead to safety accidents in lithium BESSs:
- Manufacturing defects, short circuits due to lithium plating, and battery cell inconsistency
- Circulating currents between lithium battery racks, accelerating battery cell deterioration
External short circuits caused by insulation failures, internal short circuits caused by abnormal currents and overheating - External environmental changes, such as high temperature and high humidity, accelerating lithium battery aging and causing insulation failures and short circuits, resulting in thermal runaway
- Battery monitoring failure due to improper configuration & coordination, or incomplete information sharing between the Battery Management System (BMS), Energy Management System (EMS), and Power Conversion System (PCS)
To ensure the safety of the entire ESS, it requires refined monitoring and management of batteries not only from system level, but also from rack level, pack level, and even cell level. By leveraging decades of extensive R&D investment and practical application of in electrochemical, power electronics and digital technologies, FusionSolar has pioneered the Smart String ESS Solution which features innovative battery pack & rack level optimization, as well as multi-level safety protection with refined monitoring and charge/discharge management of the ESS, achieving higher available battery capacity and increased safety.
Safety is always the top priority and is critical as we aim toward carbon neutrality. FusionSolar is committed to provide safer and more reliable ESS solutions by continuing to increase R&D investment and draw on the rich experience in power electronics, thermal, AI, and digital technologies, and will also continue working with customers and industry partners to accelerate carbon neutrality for a greener future.
SOURCE: PR Newswire