Great Power Unveils AC & DC BESS Solutions At SNEC 2026

GuangZhou Great Power Energy & Technology CO.,LTD, a solar-plus-storage system provider, showcased its latest AC and DC battery energy storage system (BESS), including cabinet- and container-based solutions, during SNEC 2026.  

Its AC outdoor BESS, Magna-C&I-260is equipped with a total of 260 lithium-iron-phosphate (LFP) battery cells (each of 314 Ah capacity), placed across 4 vertically stacked battery packs. These packs are placed within a 1,300 × 1,310 × 2,265 mm-sized (W × D × H) cabinet. The system’s battery cell configuration is 1P260S, creating a storage/discharging capacity of up to 260 kWh at a 0.5C rate. Great Power claims it can deliver a continuous 3-phase backup of up to 125 kW of power and 223 A of load for 4 hours.  

Along with performance optimization, the BESS manages the heat generated during repeated charging and discharging cycles using a circulating liquid-cooling system around the battery packs. The company said this design keeps the temperature difference between cells within 2°C, helping to improve system efficiency and reliability. 

Great Power also showcased a higher capacity of AC BESS, Magna-C&I-520, at the show. This product, featuring 8 battery packs, can store up to 520 kWh of energy, according to the manufacturer.  

For the DC outdoor type, the company highlighted its Magna-UTL-418 series BESS. Unlike the AC outdoor batteries, it comprises 416 LFP cells (each of 314 Ah capacity) in a 1P416S configuration and charges or delivers up to 209 kW DC power. It is compatible with an external power conversion system (PCS) for AC-coupling with a grid supply. This 1,300 × 1,310 × 2,265 mm-sized (W × D × H) BESS weighs under 4 tons.  

According to the company, these solutions are designed for use in industrial parks, zero-carbon parks, factories, green transportation, commercial facilities, data centers, and other energy-intensive applications. They are also suitable for utility-scale energy storage projects. 

Also on display was the 20-foot container-based DC BESS, Max-20HC-5000. Equipped with 314 Ah LFP cell-based battery packs in a cluster configuration, it can store up to 5 MWh of energy and deliver up to 2.5 MW 3-phase DC power within an output voltage range of 1,040 to 1,500 V DC for up to 4 hours at a 0.5C rate. It can fully charge itself by up to 193 × 12 A charging current within 5 minutes, while discharging with up to 157 × 12 A for up to 4 hours. This characteristic makes it suitable for regions with high peak-valley price differences or large-load fluctuations, added Great Power.