Great Power showcased its commercially available 314 Ah LFP battery cell and upcoming Ultra Series LFP cells, along with new Na-ion batteries at the show
The company also promoted its Magna-UTL-418 and Magna-C&I-520 DC-outdoor ESS, alongside the Magna-C&I-260 AC outdoor ESS
For utility applications, the exhibitor promoted the upcoming 20-foot containerized 6.25 MW BESS
Guangzhou Great Power Energy & Technology Co., Ltd., a solar-plus-storage system provider, showcased its latest AC and DC energy storage system (ESS), including cabinet- and container-based solutions, during SNEC 2026. It also showcased its battery cell portfolio. On the sidelines of the show, the TaiyangNews team spoke to Shawn Xiong, Overseas Sales Manager at Great Power, who briefly detailed the company’s showcases.
Xiong highlighted its upcoming Ultra Series lithium-iron-phosphate (LFP) battery cells. These cells have 2 storage capacities: 588 Ah and 648 Ah. Both cells are designed for maximum cycles (charging/discharging) at a 0.5C rate, with more than 10,000 cycles. These also operate over a range of -30°C to +60°C. According to Xiong, these battery cells can be used in large-scale energy storage projects (utility BESS) as well as home or rooftop energy storage systems (ESS). The company expects to start producing them commercially by Q1 2027.
He also showed the company’s 314 Ah LFP cell, which is the mainstream product for the company’s utility and commercial & industrial (C&I) ESS. Also on display were the sodium-ion batteries, in both cylindrical and prismatic configurations. The former has a rated capacity of 10 Ah, while the latter has higher capacities of up to 180 Ah. The higher-capacity cell has a guaranteed cycle life of up to 10,000 cycles at charging and discharging rates of 0.5C and 1C, respectively. These Na-ion-based cells have entered mass production.
Xiong highlighted the company’s Magna-UTL-418 series cabinet-based DC ESS, without an integrated power conversion system (PCS). It is equipped with 8 battery packs, each comprising 42 LFP cells (314 Ah each), for a total storage capacity of up to 418 kWh. According to the product datasheet, it can charge or discharge a DC power of up to 209 kW with a corresponding maximum voltage of 1,500 V DC and current of 157 A at a 0.5C rate. In fact, it can continuously absorb or deliver the rated DC power for up to 2 hours, either to provide emergency backup or grid support functions for consumers. Meanwhile, installers need to place an intermediary bidirectional power conversion system (PCS) between the ESS and the grid. Multiple ESS cabinets (each 1,300 × 1,310 × 2,265 mm in size (W × D × H)) can also be connected in parallel to the DC side of an external shared PCS to achieve cumulative capacity expansion. Xiong noted that the commercially available product has been supplied to overseas clients in Europe and the US.
Great Power also showcased a higher capacity DC ESS: Magna-C&I-520. This product, featuring 8 battery packs, can store up to 520 kWh of energy, according to the manufacturer. The company expects to start delivering this ESS to overseas markets by Q4 2026, after obtaining all required international certifications.
Within the cabinet-based AC ESS category, the company promoted its Magna-C&I-260 series. It comprises 260 LFP cells (314 Ah each), arranged across 4 vertically stacked battery packs (each with 65 cells). Thus, each ESS cabinet (sized at 1,300 × 1,310 × 2,265 mm), with a built-in PCS, can charge/discharge an AC capacity of up to 260 kWh with corresponding power of 125 kW and 223 A current for up to 2 hours at a 0.5C rate. The ESS manages heat generated during repeated charging and discharging cycles using a circulating liquid cooling system around the battery packs, maintaining the cell-to-cell temperature delta at 2°C, thereby improving system efficiency and reliability.
These showcases 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.
For utility applications, the company displayed its 20-foot container-based DC BESS, Max-20HC-5000. 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. It can fully charge itself in 5 minutes by drawing a maximum current of 193 × 12 A, while discharging at up to 157 × 12 A for up to 2 hours at a 0.5C rate. This characteristic makes it suitable for regions with high peak-valley price differences or large load fluctuations, where the stored energy is discharged during peak-price periods, for up to 2 hours. The company has delivered this ESS to the US, Germany, the Netherlands, India, and Türkiye, with a cumulative export capacity of 20 GWh in the last year, noted Xiong.
Furthermore, he pointed to the Great Power’s upcoming liquid-cooled 20-foot container-based BESS (small dummy model) with a higher storage capacity of 6.25 MWh, saving installation spaces. It uses 588 Ah LFP batteries. By March or April 2027, the company expects to begin mass production of this product.