KSTAR promoted its BluePulse and BlueSpark series hybrid ESS for C&I and residential applications at SNEC ES+ 2025
These systems are equipped with CATL battery cells
The company also showcased the GSE3600D series PCS and a containerized GSE7200D-MV series energy storage system
Shenzhen KSTAR New Energy Co., Ltd., a China-based PV inverter and UPS maker, showcased its lineup of energy storage solutions for residential, commercial, and utility applications at SNEC ES+ 2025.
Focused on the commercial & industrial (C&I) application, the company’s BluePulse series KAC125DP2-BC233DE2 energy storage system (ESS) combines CATL battery cells, a static transfer switch (STS), and a dual-layer fire protection system on a single platform. With a storage capacity of up to 233 kWh and a maximum power output of 125 kW, this ‘all-in-one' system provides a full-load backup for 3.72 hours at a 0.5C nominal discharge rate. According to the company, the STS facilities a smooth transition between on and off-grid configurations and controls the diesel generator (DG) during grid outages or failures, ensuring uninterrupted and reliable power to C&I loads. Additionally, its capacity can be scaled up for on-grid or off-grid configurations. The system is designed to support up to 12 units in the on-grid configuration, while 6 units can be connected in parallel in the off-grid configuration. The company notes that this system is designed to serve small industries, campuses, and commercial facilities.
The company’s BlueSpark series hybrid ESS, on the other hand, offers a range of power outputs of 3.68 kW to 6 kW (1-phase) and 4 kW to 12 kW (3-phase) for residential consumers. It also supports operation in both on-grid and off-grid configurations. The batteries used are covered by a warranty of up to 10 years. The ESS features an optional arc fault circuit interrupter (AFCI) function that disconnects it from the PV array during arc formation.
The Knight Series hybrid inverter, also on display, complements the BlueSpark systems by offering compatibility with both lead-acid and lithium-iron-phosphate (LFP) batteries. It is compatible with a DG, ensuring reliability of backup power during grid outages or failures. The system’s capacity can be expanded by connecting 4 units in parallel.
For utility, KSTAR promoted the GSE3600D series power conversion system (PCS) and the GSE7200D-MV series containerized energy storage and transformer system. Featuring a 3-level topology, it offers more than 99% conversion efficiency, according to the company. It adds that these systems support grid ancillary services, such as frequency regulation and grid balancing by switching (charge/discharge) within 30 ms. Its design supports integration with both dry-type and oil-cooled transformers on the AC side. In addition, featuring a redundant dual communication network, it ensures access to reliable data.
