Date : 07-July-2025
Deye New Energy, founded in 2007 and based out of Zhejiang, China, is dedicated to delivering reliable inverter solutions for residential and commercial PV power stations and energy storage systems. The company’s booth at SNEC 2025 in Shanghai featured a wide range of its latest hybrid and storage inverters, along with string inverters, targeting C&I and utility applications.
The exhibition was divided into an indoor display hall and an outdoor container demonstration area. Indoors, Deye presented its HVAC appliances, and integrated photovoltaic (PV) storage solutions tailored for residential, commercial, industrial, and utility-scale ground power stations. The outdoor zone featured the Smart Home Micro-Climate Comfort Solution, which runs on Deye’s household energy storage system and its proprietary Five Constant System. This display underlined the company’s vision to broaden the scope of solar storage applications, particularly in enhancing home comfort and energy independence.
At the event, Deye showcased its flagship product – the 100 kW-2.5 MW C&I ESS solution. This product features a battery cluster module, power conversion system (PCS), Maximum Power Point Tracker (MPPT) module, and Static Transfer Switch (STS) module. The battery module is equipped with BOS-B series battery units. Each battery unit, with 280 Ah capacity and a terminal voltage of 51.2 V, boasts a maximum energy storage capacity of 14.3 kWh. According to the datasheet, 15 such battery units can be connected in series to offer a system voltage and cumulative storage capacity of up to 768 V and 214.5 kWh. This upscaled storage solution can absorb or deliver DC of up to 168 A.
This storage system is integrated with its MPPT module – SUN-MPPT-L01-EU-AM8. It is designed to accommodate up to 8 MPPT channels, each with a voltage range of 180 V to 850 V. Each channel can carry DC not exceeding 40 A from the connected PV array.
“At its core, the system’s static transfer switch (STS) ensures truly uninterrupted power supply, capable of completing transitions between on-grid, off-grid, and diesel modes in less than 20 milliseconds,” the company said. “Independent high-power pathways support up to 500 kW connections for diesel generators, loads, and the grid, giving operators the freedom to adapt to fluctuating supply and demand without disruption.”
The system uses 14.3 kWh lithium-ion (LFP) battery modules, with up to 15 packs per PCS for a total storage capacity of 215 kWh per cluster. The batteries offer a 6,000-cycle lifespan and an IP20 protection rating, and operate within a temperature range of 0 C to 55 C when charging and -20 C to 55 C when discharging.
References :
Deye launches C&I power conversion system with battery storage – pv magazine Australia
Deye BOS-B Scalable Lithium Ion Solar Battery for C&I Energy Storage
Next-Gen Energy: Deye's Advanced Inverter & Storage Systems - SolarQuarter
Deye Modular And Scalable C&I ESS Solution At SNEC 2025