Global Mainstream Dynamic Energy Technology Ltd (GMDE)
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GMDEModel GHESS 3.7-4.8-SL -Energy Storage System

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Top safety & reliability solutions: the system stores solar energy for later use at any time of the day or night. When the grid goes down, integrated backup power prevents the household from blackout.

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Optimize Energy Use
GMDE energy storage system enables you to participate in utility demand response programs and control your electricity consumption during seasonal peak price periods. Using stored energy allows you to manage when and how to use your energy to reduce costs and environmental impact.

Solar Self-consumption
Conventionally the surplus electricity generated by home solar system is fed into the grid. However, most homes use a significant amount of electricity in the evening, after their solar panels stop producing. With GMDE energy storage system, excess power is stored in battery and clean energy can be used on-site even when the sun is not shining.

Clean Backup Power
Backup power is a key benefit of GMDE energy storage system. Solar systems won’t work when the grid goes down. With our solution, you can use your solar power when there is an outage with backup power being recharged every day. With sustainable backup power, you rely less on the grid and have an eco-friendly alternative to a fossil fuel burning generator.
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At daytime:
After supplying power to meet the loads demand, your system is charged by the sun. When your system is fully charged, excess power is fed into the grid.

At night:
Your system works throughout the night. After your peak demand you can choose to replenish from the grid at off-peak rates for the morning.

When short of sunlight:
Solar panels alone can’t meet the high evening demand. The system automatically supplies the shortfall by charging from grid.

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System Parameter
Nominal Capacity [kWh] 4.8
Usable Capacity [kWh] 3.84 @80% DoD
Number of Battery Modules 2
Installation Type Separate-mounted
Warranty [year] 5 - 10 (optional)
Grid connection 1-phase
Life Cycle 6000 @80% DoD
Input - DC (Battery)
Max. Charging / Discharging Power [W] 2400 / 2400
Operating Voltage Range [V] 40 - 60
Max. Charging / Discharging Current [A] 50 / 50
Input - DC (PV)

Max. Input Power [W]

3700

MPPT Voltage Range [V]

125 - 530

Rated Voltage [V]

360

Max. Current [A]

2 * 12

Max. Shorted Current [A] 2 * 15
MPP Tracker 2
Output- AC (Loads/Grid)

Rated Power [W]

3600

Output Voltage Range [V]

180 - 276

Max. Current Output [A]

16

Power Factor with Rated Power

[-0.9, +0.9]

THD

<3%
Output - AC (Backup Power)

Rated AC Power Output [W]

2000

Rated Voltage Output [V]

230
Rated Frequency Output [Hz] 50
THD <3%
Efficiency
Round-trip Efficiency (Include Batteries) 94.6%

General Data

Operating Temperature Range [℃] -10 to +50 (>45 derating)
Relative Humidity ≤95%  (no condensing)
Altitude [m] ≤2000
IP Protection Class IP 20 (indoor)
Cooling Forced air cooling
Noise [dB] <45
Interface CAN / RS485 / WIFI
Dimension (W * H * D) [mm]

515 * 660 * 172 (inverter)

500 * 600 * 245 (battery cabinet)

Display LCD 
Energy Management Systems GMDE EMS
Certification & Standard G83/ 2 (UK), VDE-AR-N 

4105 (DE), AS4777.2 (Aus), 

VDE0126-1-1

Protective Devices
AC Short-circuit Y
DC Reverse Polarity Protection Y
DC Switch N
Surge Protection Y