Greensun 4pcs 125kW+1MWh Energy Storage System Solution

     Recently, Greensun sold a 20GP container battery energy storage system (500kW+1MWh) to European countries. Its configuration may differ slightly from traditional energy storage system solutions. This time, it selected 4pcs Solis 125kW hybrid inverters, each inverter connected to a cluster of 768V 314AH high-voltage lithium batteries.

The performance of the 125kW Solis hybrid inverter is as follows:

1. Smart Energy Management

• AI intelligently manages charging and discharging based on TOU (Time-of-Use) tariffs
• Adapt to third party VPP platform, frequency service provider

2. High Performance

• Supports 100% three-phase unbalanced output
• 200% PV input capacity to maximize solar energy utilization
• Max. 200% overload capability in off-grid mode
• Charging and discharging currents of up to 200A
• Switching time < 10ms

3. Flexible & Scalable

• Compatible with mainstream lithium batteries
• Support Solis C&I battery solution
• Easily expand system capacity using parallel connections and AC coupling

4. Simple & Fast Configuration

• 7-inch LCD screen for an intuitive user experience
• Bluetooth app support for quick and easy setup

Advanced Battery Management System：

1. Maximum safety utilizing the safest type of lithium battery chemistry (LiFePO4) combined with an intelligent 2-level Battery Management System which include BMU, BCU. The BMS provides all round, real- time monitoring and Protection of the lithium batteries within the ESS. It provides data on cell voltage, cell temperature, cable terminal temperature, battery string voltage, current, SOC and SOH. The BMS has been configured with a set value over limit logic, which is integrated with the main control terminal to deliver complete protection and maximum battery life.

2. Passive cell balancing to maximize battery life

3. Outstanding performance and long lifespan with over 8000 cycles at 0.5C

4. Modular design with high scalability

HVAC SYSTEM：

   The environmental control system inside the ESS adopts precision heating, ventilation and air conditioning designed to ensure ideal internal temperature whether discharging, charging or on standby. The operation of the HVAC is fully automatic and responds to the internal temperature of the container. It is a highly reliable system and has a number of easy to use functions.

Fire Extinguishing System：

      The fire suppression system is designed according to the container size, and the fire extinguishing gas is discharged from the extinguishing gas cylinders to the main pipeline and then to branch pipelines and sprayed from nozzles. The system includes fire detectors, audible and visual alarm, emergency start/stop button, gas release indicator, gas extinguishing controller, etc., and follows European standards. Main features include.