Growatt 12kW Off-Grid Solar Kit – 10.8kW Panels + Battery

12kW Off-Grid Solar Power for Home or Cottage

Growatt SPE 12000US inverter with a 10,800W array of 24 Canadian Solar 450W panels and your choice of LiFePO4 battery storage.

Growatt SPE 12000US Inverter

12,000W rated pure sine wave output; 120/240V split-phase; 48V battery system; dual MPPT; solar, battery, utility and generator inputs. Install in a dry, ventilated, protected location per the manual.

Available power depends on battery limits, solar input, temperature, state of charge and loads. The 12kW inverter rating is not a guarantee of continuous battery-only AC output.

24 Canadian Solar 450W Panels for Harsh Canadian Weather

The all-black monofacial panels are rated for snow loads up to 8,100 Pa and wind loads up to 6,000 Pa under the manufacturer's specified mounting conditions. Matching panel construction passed independent 50 mm hail testing. A panel operating-temperature range of −40°C to +85°C supports use through Canada's changing seasons.

These ratings apply to the panels—not the entire system. Install the inverter in a dry indoor location and keep batteries within their specified operating temperatures.

Choose Your Battery Storage

Both options use LiFePO4 batteries. Choose Growatt ALP if you prefer the same brand for your inverter and battery, or GSL for a value-focused alternative. Compare the storage capacity and price shown for each kit.

Nominal storage is not usable AC energy. Battery discharge limits, conversion losses and operating conditions affect output and runtime. Follow the selected battery manuals for wiring, temperature limits, clearances and protection.

What's Included

• 1 × Growatt SPE 12000US 12kW inverter.
• 24 × Canadian Solar CS6.1-54TM-450H 450W all-black monofacial panels.
• Your selected battery: 4 × Growatt ALP 5.12kWh modules or 2 × GSL 14.34kWh batteries.
• Wall-mount brackets and battery-to-inverter cable.

Contact ROCKSOLAR to confirm solar-panel racking and the complete accessory schedule for your installation. Do not assume that every component in the conceptual diagram is included.

Installation Materials and Protection

The connection diagram is conceptual, not an installation plan or packing list. Confirm PV string layout, cold-weather voltage, mounting, wiring and electrical protection for your site. DIY preparation must follow local requirements; arrange any required electrical work, permits and inspections.

• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
• If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.