12kW Off-Grid Solar Kit with 7.2kW Bifacial Solar Panels
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12kW Off-Grid Solar Kit with 7.2kW Bifacial Solar Panels
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What it is, and what it is for
Power your home, cabin, farm, workshop, or remote property with the ROCKSOLAR 12kW Off-Grid Solar Kit. Featuring a Growatt 12kW 120/240V split-phase off-grid inverter and 16 × JA Solar JAM54D41 450W bifacial solar panels, this system delivers 7.2kW of total solar capacity for reliable independent power.
Designed for larger off-grid applications, the system supports lithium or lead-acid battery storage, generator/AC input, MPPT solar charging, and remote monitoring capability.
Key Features
- 12kW SPE12000 US Growatt off-grid inverter
- 120/240V split-phase pure sine wave output
- 16 × JA Solar JAM54D41 450W bifacial solar panels
- 7.2kW total PV capacity
- 2 × 40 ft 10 AWG PV cable sets
- Built-in MPPT solar charging
- 48V lithium and lead-acid battery compatible
- Generator / AC charging support
- Wi-Fi / GPRS monitoring capability
- Up to 97% inverter efficiency
- Ideal for off-grid homes, cabins, farms, workshops, and remote properties
7.2kW Bifacial Solar Array
The system includes 16 × JA Solar JAM54D41 450W monocrystalline bifacial solar panels, providing 7,040W of total rated PV capacity.
Bifacial solar technology can capture reflected sunlight from the rear side of the modules when installation conditions allow, helping improve overall energy production. The panels feature durable aluminum frames, tempered glass, bypass diodes, and MC4-compatible connectors.
Flexible Off-Grid Power
The Growatt inverter provides 12,000W rated output with 120/240V split-phase power and pure sine wave AC output. It supports lithium and lead-acid battery systems, giving homeowners flexibility to size battery storage according to their energy and backup requirements.
What's Included
- 1 × Growatt 12kW 120/240V Split-Phase Off-Grid Inverter
- 16 × JA Solar JAM54D41 450W Bifacial Solar Panels
- 2 × 40 ft 10 AWG PV Cable Sets
- System documentation
Solar Array: 7,040W
Inverter Output: 12,000W
AC Output: 120/240V Split Phase
Battery Voltage: 51.2V nominal / 48V-class battery system
Battery storage, mounting hardware, breakers, disconnects, conduit, and other site-specific installation materials may be required separately.
Ideal for customers looking for a powerful 12kW off-grid solar system with flexible battery and generator integration for larger residential and remote-energy applications.
3 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.
| Growatt 12 kW Off-Grid Inverter Specification | Details |
|---|---|
| Battery Voltage | 51.2VDC |
| Battery Type | Lithium/Lead-acid |
| Inverter Output (Rated Power) | 12KW |
| Surge Rating | 36KW |
| Waveform | Pure sine wave/ same as input (bypass mode) |
| Nominal Output Voltage RMS | 104-110-115-120/208-220-230-240VAC (optional) |
| Output Frequency | 50Hz/60Hz +/-0.3 Hz |
| Inverter Efficiency (Peak) | 97% |
| Transfer Time | <10ms |
| Solar Charger (Maximum PV Charge Current) | 120A |
| Maximum PV Array Power | 7000W |
| AC Input Voltage | 240VAC |
| Max. Charging Current | 100A |
| Protection Degree | IP21 |
| Dimensions (W/H/D) | 380/650/225mm |
| Weight | 75kg |
| Operating Environment (Temperature Range) | 0°C to 50°C |
| Warranty | 2 Years |
| Certifications | UL STD.1741, CSA STD CSA C22.2 No.107.1 |
| 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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