What is off grid system?
The Rise of Lithium-Ion Battery-Based Off-Grid Solar Systems
Off-grid solar systems equipped with lithium-ion batteries have gained widespread popularity in recent years, primarily due to the advantages offered by lithium-ion battery technology-such as higher efficiency, longer lifespan, and lower maintenance requirements compared to traditional gel or lead-acid batteries.
Originally developed to supply power to remote areas or regions without access to the electrical grid, early off-grid solar systems typically relied on lead-acid batteries. However, these batteries were heavy, bulky, and had relatively short service lives. With advancements in energy storage technology, lithium-ion batteries have emerged as the preferred solution for modern off-grid applications.
A typical off-grid solar system with lithium-ion batteries consists of several key components, including solar panels, lithium-ion battery packs, inverters, solar panel mounts, and various accessories.
| Technical Specification | Hybrid Inverter | ||||
| Rated Power(W) | 4000VA/4000W | 6000VA/6000W | 6000VA/6000W | 8000VA/8000W | 11000VA/11000W |
| AC INPUT | |||||
| Nominal Voltage(VAC) | 230VAC | ||||
| Voltage range(VAC) | 170~280VAC / 90~280VAC | ||||
| Frequency range(Hz) | 50/60Hz | ||||
| AC OUTPUT | |||||
| Surge power | 8000 | 12000 | 16000 | 22000 | |
| Output voltage(VAC) | 220/230/240 | ||||
| Output wave form | Pure sine wave | ||||
| Rated Frequency(Hz) | 50/60 | ||||
| Efficiency | 93% max | ||||
| Transfer time | 10ms typical(narrow range);20ms typical (wide range) | ||||
| BATTERY | |||||
| Nominal DC voltage(VDC) | 24 | 48 | |||
| Floating charge voltage(VDC) | 27 | 54 | |||
| Overcharge protection(VDC) | 31 | 63 | |||
| Battery type | Lithium & Lead-acid | ||||
| SOLAR CHARGER & AC CHARGER | |||||
| Max.PV array open circuit voltage(VDC) | 500 | ||||
| Max.PV array power(W) | 5000W | 7000W | 8000W(4000*2) | 10000W(5000*2) | 11000W(5500*2) |
| MPPT input voltage range@operating(VDC) | 60-450 | ||||
| Max.input current(A) | 27 | 15*2 | 27*2(Max 40A) | ||
| Max.solar charging current(A) | 120 | 150 | |||
| Max.AC charging current(A) | 100 | 120 | 150 | ||
| Max.charging current(A) | 120 | 150 | |||
| DISPLAY INTERFACE | |||||
| Parallel function | up to 6 units | ||||
| Communication | Standard:RS232,CAN&RS485;Optional:WiFi,Bluetooth | ||||
| Display | 5"colorful LCD | ||||
HALF CELL SOLAR PANEL
1:Positive power tolerance:0~+5w
2:Potential induced Degradation(PID)Resistant
3:100%EL Double-inspection ensure modules are defects free
4:Modules Binned by Current to improve system performance
OFF GRID SOLAR INVERTER
1:Pure sine wave inverter
2:Parallel operation with up to 9 units
3:Built-in MPPT Solar charge controller
4:Built-in MPPT Solar charge controller
5:Compatible to mains voltage ot generator power
Lithium Battery
1:Larger Energy Capacity
2:Modular design,easy to work
3:Wide Temperature range:-35-65°C
4:LiFePO4 Battery,safe,longer lifespan
PV COMBINER BOX
1:IP Rating:IP66
2:Rated Voltage:1000VDC
3:Input Cable Terminal:4-6mm2
MOUNTING STRUCTURE
1:Residential Roof(Pitched Roof)
2:Commercial Roof(Flat roof&workshop roof)
3:Ground Solar Mounting system
4:Vertical wall solar mounting system
5:All Aluminum structure solar mounting system
6:Car Parking solar mounting system
Cable Accessories
1:PV Cable 4mm2 & 6mm2
2:AC Cable
3:DC Cable
4:DC Switches
5:AC Breaker
5:AC/DC Combine Box
PV TOOLS
1:Wire Cable Cutter & Stripper
2:MC3 MC4 Crimper
3:MC4 Connectors Assembly
4:Disassembly Tool
Solar SYSTEM Projects Pictures:
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