12kW Off-Grid Solar System with 8.8kW Panels & 14.34kWh LiFePO4 Battery
Pickup currently unavailable at USA Fulfillment Center
Talk to Real Experts Anytime
Talk to Real Experts Anytime
Lifetime tech support from our in-house specialists
Hassle Free Warranty
Hassle Free Warranty
Effortless Warranty for Your Ease.
Unbeatable Value, Guaranteed
Unbeatable Value, Guaranteed
Find it cheaper elsewhere? We'll match it.
Speak To a Solar Specialist
solar industry experience
10,000+ American
customers
return policy
Warranty
Description
Description
Power your home, cottage, cabin, farm, or remote property with the ROCKSOLAR 12kW Off-Grid Solar System. Featuring a Growatt SPE12000 US 12kW inverter, 8.8kW bifacial solar array, and GSL 14.34kWh LiFePO4 battery, this complete system delivers reliable 120/240V split-phase power for residential off-grid living.
Key Features
- 12kW Growatt SPE12000 US inverter
- 120/240V split-phase pure sine wave power
- Up to 36kW surge power
- 20 × JA Solar 440W bifacial solar panels
- 8.8kW total solar array
- 14.34kWh GSL LiFePO4 battery
- Dual MPPT solar inputs
- Supports up to 18kW PV input
- Generator charging support
- Ideal for homes, cottages, farms, cabins, and remote properties
14.34kWh GSL LiFePO4 Battery
The included GSL residential battery provides dependable, long-life energy storage for demanding off-grid applications.
- 51.2V / 280Ah
- 14.34kWh nominal capacity
- 90% recommended depth of discharge
- 8,500+ cycle life
- Integrated BMS
- CAN, RS485 & WiFi communication
- IP65-rated enclosure
- Expandable up to 16 batteries in parallel
- 15-year warranty
120/240V Split-Phase Power
The Growatt SPE12000 US supplies both 120V and 240V power, making it suitable for everyday household loads and compatible larger appliances, including refrigerators, lighting, electronics, well pumps, kitchen appliances, washing machines, power tools, and other 240V equipment.
Actual runtime depends on solar production, battery state of charge, and connected loads.
System Specifications
| Specification | Details |
|---|---|
| Inverter | Growatt SPE12000 US |
| Rated Output | 12,000W |
| AC Output | 120/240V Split Phase |
| Surge Power | Up to 36,000W |
| Solar Array | 8.8kW |
| Solar Panels | 20 × 440W Bifacial |
| Maximum PV Input | 18kW |
| Battery | GSL 14.34kWh LiFePO4 |
| Battery Voltage | 51.2V |
| Battery Capacity | 280Ah |
| Generator Charging | Supported |
What’s Included
- 1 × Growatt SPE12000 US 12kW Off-Grid Inverter
- 1 × GSL 51.2V 280Ah 14.34kWh LiFePO4 Battery
- 20 × 440W Bifacial Solar Panels
- 2 × 40 ft PV Cables
- 1 × 600V 20A 2-Pole DC Circuit Breaker
- 1 × Breaker Box
Warranty & Support
- GSL 14.34kWh Battery: 15-Year Warranty
- Growatt SPE12000 US Inverter: 5-Year Standard Warranty
- 440W Solar Panels: 25-Year Warranty
- Solar Panel Service Life: 30+ Years
- Lifetime ROCKSOLAR Technical Support
Reliable Off-Grid Power for Homes & Cottages
With a 12kW split-phase inverter, 8.8kW bifacial solar array, and 14.34kWh LiFePO4 battery storage, this system provides a powerful foundation for reliable off-grid living. It is well suited for homes, cottages, cabins, farms, homesteads, and remote properties across the USA.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
SHOP OUR BEST DEALS
View All CollectionsFind Your Perfect Solar Solution
Answer a few questions to get personalized product recommendations







