KSTAR displayed K Home and BlueSpark residential ESSs at the show
It also showcased its 7 kW GreenFlow AC EV charger and launched GreenSketch energy simulation software
For the C&I segment, the company presented BluePulse ESSs
KSTAR Science and Technology Co., Ltd., a China-based PV inverter and energy storage system (ESS) maker, displayed a wide range of residential and commercial & industrial (C&I) ESSs along with a string inverter at Solar & Storage Live UK 2026.
Home ESSs
The company's residential product lineup included K Home (single-phase) and BlueSpark (single- and 3-phase) series. These all-in-one models integrate a hybrid inverter, battery stacks, and an energy management system within a single platform.
The K Home features a 10 kW HH10KS hybrid inverter. Of the two BlueSpark single-phase variants, one is equipped with the 3.68 kW E3.68KS D22 model and the other the higher-capacity 12 kW E12KS D42 model. The 10- and 3.68-kW inverters feature two MPPTs; each supports a single PV string and is rated at a maximum PV voltage of 500 V. The 10 kW inverter supports up to 18 kW of PV capacity, while its 3.68 kW peer allows up to 10 kW PV array. The E12KS D42 contains two additional MPPTs with up to 24 kW recommended PV capacity and provides up to 12 kW of power output (single-phase) at full-load conditions.
On the storage side, both HH10KS and E3.68KS D22 consist of up to 8 lithium-iron phosphate (LFP) battery packs, each rated at 5.12 kWh and connected on top of one another with a total storage capacity of 40.96 kWh. This configuration creates 10 kW/40 kWh and 3.68 kW/40 kWh storage platforms, respectively. In comparison, the E12KS D42 comprises 4 LFP battery units, each rated at a higher capacity of 16 kWh and a total storage capacity of 64 kWh, creating 12 kW/64 kWh ESS. The company says these ESSs switch to backup mode 'near instantly' in the event of a grid outage and deliver a rated full-load power of 10 kW (10 kW/40 kWh), 6 kW (3.68 kW/40 kWh), and 12 kW (12 kW/64 kWh).
BlueSpark's three-phase variant combines a 12 kW E12KT-D22 hybrid inverter and eight 5.12 kWh LFP battery packs within a single platform with a total storage capacity of 40.96 kWh. It supports up to 22 kW of PV capacity for solar harvesting.
In addition to the above ESSs, KSTAR launched a simulation software, GreenSketch, to automatically assess the solar and storage potential of individual British roofs by using only household addresses. It is powered by an AI agent – Emily. The company also showcased its 7 kW GreenFlow AC EV charger, which connects to individual ESSs via a dedicated port for a connected home energy ecosystem.
C&I ESSs
The company showcased BluePulse 50 kW/107 kWh and 125 kW/233 kWh ESS, targeted at the C&I segment. The former ESS pairs a 107 kWh BC107DE2 battery stack with an external KAC50DP2 hybrid inverter while the latter consists of KAC125DP2 (125 kW) hybrid inverter and the BC233DE2 (233 kWh) battery.
KSTAR also displayed its BlueKernel series G125KT7 string inverter with 125 kW rated full-load 3-phase power output.
TaiyangNews has recently published its "Balance of System (BoS) Components 2026" report, featuring inverters, storage and technology trends presented at SNEC and Intersolar Europe 2026.
