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12kW Premium Off-Grid Solar System with 10.56kW Panels & 28.68kWh Battery

Sale price $13,999.99 Regular price $26,999.99
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Description

Power larger homes, cottages, cabins, farms, and remote properties with the ROCKSOLAR 12kW Premium Off-Grid Solar System. Featuring a Growatt SPE12000 US 12kW inverter, 10.56kW bifacial solar array, and 28.68kWh GSL LiFePO4 battery storage, this system delivers reliable 120/240V split-phase power for demanding off-grid applications.

Key Features

  • 12kW Growatt SPE12000 US inverter
  • 120/240V split-phase pure sine wave output
  • Up to 36kW surge power
  • 24 × 440W bifacial solar panels
  • 10.56kW total solar array
  • 2 × 14.34kWh GSL LiFePO4 batteries
  • 28.68kWh total battery storage
  • Dual MPPT solar inputs
  • Supports up to 18kW PV input
  • Generator charging support
  • Ideal for larger homes, cottages, farms, and remote properties

28.68kWh GSL LiFePO4 Battery Storage

The system includes two GSL 51.2V 280Ah batteries, providing a combined 28.68kWh of LiFePO4 energy storage.

  • 14.34kWh per battery
  • 51.2V / 280Ah
  • 90% recommended depth of discharge
  • 8,500+ cycle life
  • Integrated BMS
  • CAN, RS485 & WiFi communication
  • IP65-rated enclosure
  • Expandable battery architecture
  • 15-year warranty

120/240V Split-Phase Home Power

The Growatt SPE12000 US delivers both 120V and 240V power, making the system suitable for refrigerators, lighting, electronics, well pumps, kitchen appliances, washing machines, power tools, and compatible 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 12kW
AC Output 120/240V Split Phase
Surge Power Up to 36kW
Solar Array 10.56kW
Solar Panels 24 × 440W Bifacial
Maximum PV Input 18kW
Battery Storage 28.68kWh
Battery Configuration 2 × GSL 14.34kWh
Battery Chemistry LiFePO4
Generator Charging Supported

What's Included

  • 1 × Growatt SPE12000 US 12kW Off-Grid Inverter
  • 24 × 440W Bifacial Solar Panels
  • 2 × GSL 51.2V 280Ah 14.34kWh LiFePO4 Batteries
  • 4 x 300V 20A DC Circuit Breakers
  • 1 x Breaker box
  • 4 x 40ft 10AWG PV cable

Warranty & Support

  • GSL 14.34kWh LiFePO4 Batteries: 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

Premium Off-Grid Power for Larger Homes

With a 12kW split-phase inverter, 10.56kW bifacial solar array, and 28.68kWh LiFePO4 battery bank, this premium system delivers greater energy storage for larger off-grid homes, cottages, cabins, farms, and remote properties across the USA

SPECIFICATIONS

Growatt ALP LV-US 5kWh 48V LiFePO4 Battery Details
Model Growatt ALP LV-US 5kWh 48V LiFePO4 Battery
Energy Capacity 5.0kWh
Max Charge/Discharge Power 3kW
Max Charge/Discharge Current 60A
Dimensions 650 x 350 x 165mm (W x D x H)
Weight 42kg
Nominal Voltage 51.2V
Warranty 10 years
Battery Type Cobalt Free Lithium Iron Phosphate (LFP)
Operating Voltage Range 48 - 57.6V
Installation Floor installation
Operation Temperature 0°C-50°C/32-122°F
DoD 92%
Parallel Capability Multi-cluster ALP battery system in parallel, Max. 8 clusters (Max. 400kWh)
Communication Port CAN/RS485
Performance Warranty 10 years
Certification CE, ROHS, UL1973+FCC, UN38.3 + IP65
Growatt SPE 12000-US Details
Battery Voltage 46 – 60 VDC (Lithium)
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 120/240Vac (195-255Vac)(optional)
Output Frequency 60Hz (58.3~61.7Hz)
Inverter Efficiency (Peak) 96.50%
Transfer Time ≤20ms Single /≤30ms Parallel
Solar Charger (Maximum PV Charge Current) 27A(Per MPPT)
Maximum PV Array Power 18000W(9000W per MPPT)
AC Input Voltage 120/240Vac
Max. Charging Current 70A
Protection Degree IP20
Dimensions (W/H/D) 550/465/150 mm
Weight 21.5kg
Operating Environment (Temperature Range) -10°C ~ 50°C
Warranty 5-year standard warranty
ROCKSOLAR 440W Bifacial Rigid Solar Panel Details
Panel Type Bifacial Panels
Power Output 440W
System Voltage 32.8V
Cell Efficiency 20-23%
Frame Material Aluminum
Dimensions 1480mm x 670mm
Weight approx. 25-30 lbs
Operating Temperature -40°C to +85°C
Waterproof Rating IP68
Front Glass High light transmittance, low-iron tempered glass
Bypass Diodes Integrated
Connectors MC4
Cable Length Varies depending on the brand (approx. 3-6 ft)
Mounting Hole Locations Pre-drilled
Service Life 25 years or more
Warranty 10 years

INCLUDES

Datasheet & User Manual

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