6kW Off-Grid Solar Kit with 4.5kW Bifacial Solar Panels
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What it is, and what it is for
Power your home, cabin, workshop, or remote property with the ROCKSOLAR 6kW Off-Grid Solar Kit. Featuring a Growatt SPE6000US 120/240V split-phase inverter and 10 × JA Solar JAM54D41 450W N-Type bifacial solar panels, this system delivers 4.5kW of solar capacity with flexible battery and generator integration.
Designed for reliable off-grid power in the USA, the system supports 48V lithium or lead-acid batteries, dual MPPT solar charging, generator input, smart load control, and system expansion.
Key Features
- 6kW Growatt SPE6000US off-grid inverter
- 120/240V split-phase pure sine wave output
- 10 × JA Solar JAM54D41 450W N-Type bifacial solar panels
- 4.5kW total PV capacity
- 2 × 40 ft 10 AWG PV cable sets
- Dual MPPT solar tracking
- 48V lithium and lead-acid battery compatible
- Generator charging support
- Smart load connection
- Wi-Fi monitoring capability
- Supports up to 9 inverters in parallel
- Bifacial panels can capture additional energy from rear-side reflected light
Growatt SPE6000US Off-Grid Inverter
The Growatt SPE6000US delivers 6,000W continuous output with 120/240V split-phase power for residential applications. Its dual MPPT design helps maximize solar production, while generator charging and smart load support provide additional flexibility for off-grid living.
4.5kW Bifacial Solar Array
The system includes 10 × JA Solar JAM54D41 450W N-Type bifacial solar panels, providing 4,400W of total rated PV capacity. The panels offer up to 22.5% module efficiency, IP68 junction boxes, and durable dual-glass construction.
What's Included
- 1 × Growatt SPE6000US 6kW Off-Grid Inverter
- 10 × JA Solar JAM54D41 450W N-Type Bifacial Solar Panels
- 2 × 40 ft 10 AWG PV Cable Sets
- System documentation
Solar Array: 4,400W
Inverter Output: 6,000W
AC Output: 120/240V Split Phase
Battery System: 48V lithium or lead-acid compatible
Battery storage, mounting hardware, breakers, disconnects, and other site-specific installation materials may be required separately.
Ideal for off-grid homes, cabins, farms, workshops, and remote properties looking for dependable solar power with flexible battery and generator backup options.
2 components
Each one is a product we sell on its own, so you can read its full listing, and replace or add to it later.
Published before you buy. No email required.
Every number, by component.
The figures the manufacturer publishes. The datasheet above is the reference if the two ever differ.
| SPE 6000 Hybrid Inverter Specifications | Details |
|---|---|
| Model | SPE 6000 |
| Rated Output Power | 6000 W |
| Peak Output Power | 12,000 W |
| Output Voltage | 120 / 240 VAC Split Phase |
| Output Frequency | 50 Hz / 60 Hz |
| Output Waveform | Pure Sine Wave |
| Battery Voltage | 48 V DC |
| Battery Type | Lithium / Lead-Acid |
| Maximum PV Input Power | 8000 W |
| Maximum PV Open Circuit Voltage | 500 V DC |
| MPPT Voltage Range | 120 – 450 V DC |
| Number of MPPT Trackers | 2 |
| Maximum PV Charging Current | 120 A |
| AC Input Voltage Range | 90 – 280 VAC |
| Maximum Efficiency | 98% |
| Transfer Time | 10 ms |
| Communication | USB / RS485 / WiFi (Optional) |
| Operating Temperature | -10°C to +50°C |
| Protection Rating | IP21 |
| Cooling | Intelligent Fan Cooling |
| Display | LCD Display with Monitoring |
| Dimensions | Approx. 620 × 430 × 210 mm |
| Weight | Approx. 38 kg |
| JA Solar JAM54D41 LB 450W N-Type Double Glass Bifacial Solar Panel | Details |
|---|---|
| Rated Power (as supplied) | 450W |
| Brand | JA Solar |
| Model | JAM54D41 LB |
| Power Output Range | 430W – 455W |
| Cell Technology | N-Type Bycium+ Mono-Crystalline |
| Module Type | Double Glass Bifacial Half-Cell (16BB) |
| Number of Cells | 108 (6 × 18) |
| Maximum Module Efficiency | Up to 22.5% |
| Bifaciality Ratio | Approx. 80% |
| Power Tolerance | 0 ~ +3% |
| Module Dimensions | 1762 × 1134 × 30 mm |
| Module Weight | 22 kg |
| Front Glass | 1.6 mm Heat-Strengthened Glass |
| Rear Glass | 1.6 mm Heat-Strengthened Glass |
| Frame | Anodized Aluminum Alloy (Black, 30 mm) |
| Junction Box | IP68 Rated with MC4-EVO2 Connectors |
| Maximum System Voltage | 1500 V DC |
| Maximum Series Fuse | 30 A |
| Operating Temperature | −40°C to +85°C |
| Temperature Coefficient (Pmax) | −0.29% / °C |
| Mechanical Load (Front) | 5400 Pa |
| Mechanical Load (Rear) | 2400 Pa |
| Product Warranty | 12 Years |
| Performance Warranty | 30-Year Linear Power Warranty (≤ 0.4% annual degradation) |
| Country of Origin | China |
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