Product Description
Working Principle of Off-Grid Solar Power Generation System
1. Photoelectric Conversion
When sunlight irradiates solar panels, based on the photovoltaic effect, semiconductor materials in the panels absorb photon energy, generating electron-hole pairs that form an electric current. This process converts solar energy into direct current (DC).
2. Charging Control
The DC power generated by the solar panels enters a controller, which monitors parameters (such as voltage and current) and adjusts the charging process from the panels to the battery. This ensures safe charging and prevents overcharging.
3. Energy Storage
The battery stores electrical energy through internal chemical reactions, converting it into chemical energy for storage. When sunlight is insufficient, it reverses the process, converting chemical energy back into electrical energy for output.
4. Inversion and Output
An inverter transforms the DC power from the battery into standard alternating current (AC). It also controls the quality of the output by regulating parameters like voltage and frequency to meet grid-standard requirements.
5. Load Power Supply
The AC power generated by the inverter is transmitted to various electrical loads to meet their power demands. The system dynamically balances and stabilizes the power supply according to real-time load requirements, ensuring stable operation.
| Item |
20KW |
30KW |
| Half Cell Solar Panel |
32pieces |
48pieces |
| Hybrid off-grid inverter |
Three-phase 8KW * 2 units |
Three-phase 10KW * 2 units |
| lithium battery |
40KWH |
50KWH |
| Power that can drive inductive loads |
7KW |
9KW |
| Photovoltaic cable |
PV1-F1*4mm²*160m |
PV1-F1*4mm²*240m |
| Mounting bracket |
Tile Roof/Ground |
Tile Roof/Ground |
| MC4Connector |
4pcs |
4pcs |
| Auxiliary materials (grounding + conduit) |
1set |
1set |
| Installation Manual |
Yes |
Yes |
Solar Monocrystalline Panel
Monocrystalline cell: Monocrystalline N-type
Module size: 2382*1134*30mm
Maximum power: 625W
Open circuit voltage: 48.6V
Short circuit current: 16.14A
Maximum power point voltage: 41.14V
Maximum power point current: 15.11A
Lithium Iron Phosphate Battery
Model: GBP48-280H
Nominal voltage and capacity: 48V 280AH
Nominal energy: 13.44kWh
Operating voltage range: 42-54.75V
Recommended charging voltage: 51.75V
Maximum continuous charge/discharge current: 0.5C
Operating temperature: -30°C - 60°C
Three-phase low-voltage energy storage inverter
Model: GST48-10K5-P3
Rated output power: 10500
Maximum peak power: 21000
Motor capacity: 6
Rated AC output: 400VAC, three-phase, 50/60HZ
Output voltage waveform: Pure sine wave
Maximum battery inversion efficiency: ≥93%
Rated battery voltage: 48
Battery voltage range: 40-60
Auxiliary materials
Grounding electrode,
grounding flat iron,
Conduit,
photovoltaic cable,
MC4 connector
Detailed Photos
Company Profile
Audited Supplier 
){kind=link}