11kw off grid solar system
11kW Off-Grid Solar Energy Storage System with 20.48kWh Battery Storage
An 11kW pure sine wave off-grid energy storage system with 20.48kWh modular 51.2V battery storage, integrated MPPT solar charging, utility or generator charging support, and configurable power-source priority.
Specifications
- Rated Output Power
- 11,000W
- Output Waveform
- Pure sine wave
- Output Voltage
- 230Vac ±5%
- Output Frequency
- 50Hz / 60Hz
- Peak Inverter Efficiency
- 93%
- Battery Storage
- 20.48kWh (4 × 5.12kWh)
- Battery Nominal Voltage
- 51.2V
- Battery Cycle Life
- 6,000 cycles at 80% DOD, 25°C
- Rated PV Power
- 11,000W
- MPPT Voltage Range
- 90-450Vdc
- Maximum PV Open-circuit Voltage
- 500Vdc
- Parallel Capability
- Up to 6 units
Integrated Off-Grid Power and Storage
This 11kW energy storage controller inverter integrated machine combines a pure sine wave inverter, MPPT solar controller and utility charger in one system. It is designed to supply AC loads where grid power is unavailable, insufficient or unstable, while also supporting utility or generator input as a backup charging source.
20.48kWh Modular Battery Storage
The confirmed configuration uses four 5.12kWh battery modules for 20.48kWh of total nominal storage. Each module is rated at 51.2V and supports RS485, RS232 and CAN communication. The battery specification lists 90% depth of discharge and 6,000 cycles at 80% DOD and 25°C.
11kW Pure Sine Wave Output
The 11kW model provides 11,000W rated output with 230Vac ±5% voltage regulation and selectable 50Hz or 60Hz output. Peak inverter efficiency is 93%, surge capacity is twice the rated power for five seconds, and no-load consumption is below 75W.
Flexible Solar and Backup Charging
The solar input supports up to 11,000W rated PV power, a 90-450Vdc MPPT range and a maximum PV open-circuit voltage of 500Vdc. Maximum PV input current is listed as 27A × 2, with a 40A maximum. Utility charging current for the 11kW model is 150A, and the system allows selectable utility, solar or solar-battery priority modes.
Installation and System Expansion
The system supports up to six units in parallel with CAN communication. Installation, cable sizing, protection, earthing and battery communication must be completed by qualified electrical or solar professionals according to the product manual and local regulations.
Request a Configuration
For PV array sizing, load assessment, regional voltage and frequency configuration, or OEM/ODM requirements, contact Hefei Polynet Products Co., Ltd. via WhatsApp +86 158 5513 5193 or sales1@polynetpv.com.