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22.5 kWp 21 kW 90 kWh Energy Storage System
A distributed solar-plus-storage package combining a 22.5 kWp photovoltaic array, two GST10.55K-P1-P hybrid inverters with 21 kW total output, and three wheeled lithium batteries providing 90 kWh of configured storage.
Included Components / System Configuration
| Picture | Model | Description | Advantage | Qty |
|---|---|---|---|---|
| 625 W Solar Panel | 625 W photovoltaic module; 9 panels in series and 4 strings in parallel. Total configured array: 36 × 625 W. | 22.5 kWp solar array with a 10-year workbook-listed warranty. | 36 pcs |
 | Mounting Bracket System | Customized rooftop or ground mounting structure. Final engineering requires actual site drawings; the workbook reference configuration uses a raised ground structure. | Project-specific mounting configuration with 10-year warranty. | 1 set |
 | MC4 Connector | Tin-plated photovoltaic connector rated at 40 A and 1,500 V. | PV string connection component with 2.5-year warranty. | 15 pcs |
 | PV1-F Single-Core Cable | PV1-F 1 × 4.0 mm² single-core photovoltaic cable; 200 m red and 200 m black. | Configured cable length: 400 m, with 2.5-year warranty. | 400 m |
| GST10.55K-P1-P Hybrid Inverter | Two hybrid inverter units rated at 10.5 kW each for 21 kW total output; maximum PV input 13.2 kW per unit; MPPT range 120–450 V; AC output 220 V. | Parallel two-unit system configuration with 2.5-year warranty. | 2 pcs |
| Wheeled Lithium Battery | 51.2 V / 648 Ah wheeled lithium battery; the workbook lists three 30 kWh battery units for the complete system.Confirmed configured battery capacity: 90 kWh3 × 30 kWh battery units · 51.2 V / 648 Ah each | Mobile cabinet format with a workbook-listed five-year warranty. | 3 pcs |
Highlights
22.5 kWp photovoltaic array using 36 solar panels rated at 625 W each.
Nine-panel series strings with four parallel strings form the workbook-specified 9S4P solar array.
Two GST10.55K-P1-P hybrid inverters rated at 10.5 kW each provide 21 kW total AC output.
Each inverter supports up to 13.2 kW PV input, a 120–450 V MPPT range and 220 V AC output.
Three wheeled lithium batteries are configured at 30 kWh each for 90 kWh total storage.
Each workbook-listed battery unit is rated at 51.2 V / 648 Ah and includes a five-year warranty.
Workbook reference generation is approximately 135 kWh per day under six average peak-sun hours.
PV1-F 4 mm² cable, MC4 connectors and site-specific mounting hardware complete the configured package.
Technical Data
- Battery capacity
- 90 kWh
- Battery configuration
- 3 × 30 kWh wheeled lithium batteries
- Battery rating per unit
- 51.2 V / 648 Ah
- Solar array
- 36 × 625 W = 22.5 kWp
- Solar string configuration
- 9 panels in series × 4 parallel strings
- Inverter model
- GST10.55K-P1-P
- Inverter output
- 2 × 10.5 kW = 21 kW
- Maximum PV input
- 13.2 kW per inverter
- MPPT voltage range
- 120–450 V
- AC output
- 220 V
- Reference daily generation
- Approximately 135 kWh at 6 peak-sun hours
- PV cable
- 400 m PV1-F 1 × 4.0 mm²; 200 m red and 200 m black
Questions Before Quotation
What are the rated capacities of this 21 kW 90 kWh energy storage system?
The configured package combines a 22.5 kWp photovoltaic array, two 10.5 kW hybrid inverters for 21 kW total output, and three 30 kWh wheeled lithium batteries for 90 kWh total storage.
How is the 90 kWh battery bank configured?
The workbook specifies three wheeled lithium battery units, each listed at 30 kWh and rated at 51.2 V / 648 Ah, providing 90 kWh of configured storage.
Which inverter is included in the system?
The system uses two GST10.55K-P1-P hybrid inverters. Each is rated at 10.5 kW, supports up to 13.2 kW PV input and operates across a 120–450 V MPPT range.
How much energy can the 22.5 kWp solar array generate?
The workbook uses a reference estimate of approximately 135 kWh per day at six average peak-sun hours. Actual generation depends on location, weather, orientation, temperature and system losses.
Is this system suitable for small commercial backup?
It can serve small commercial, retail, office, community and distributed backup projects when the site load profile and required backup duration fit the 21 kW inverter output and 90 kWh storage configuration.
What warranties are listed for the configured components?
The workbook lists 10 years for the solar panels and mounting system, five years for the lithium batteries, and 2.5 years for the inverters, MC4 connectors and PV cable.
What information is needed for an engineering quotation?
Provide the project location, maximum simultaneous load, monthly electricity use, grid and generator conditions, installation type and site drawings so the solar array, battery autonomy and mounting structure can be verified.
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