12 KW Split Phase 120/240Vac Off-Grid Solar System

Growatt Advanced Home Solar Storage Kit – 12kW System with 8800W Solar Array

Product Overview
The Growatt 12kW Advanced Home Solar Storage Kit is a high-capacity off-grid energy solution designed for full-home power, large residential loads, and commercial-scale backup applications. It integrates a powerful split-phase inverter, scalable lithium battery storage, and an 8800W bifacial solar array to deliver reliable, energy-independent performance.

Key Features

• 12kW Split-Phase Output (120/240V) – Supports whole-home and heavy-duty loads
• 15kWh Lithium Battery Storage – High-capacity, modular energy storage
• 8800W Solar Array – High-efficiency bifacial panels for maximum generation
• Complete Off-Grid System – Inverter, batteries, panels, and accessories included
• Smart Energy Management – Remote monitoring, diagnostics, and firmware updates
• Expandable System – Scalable battery and solar capacity for future growth
• Hybrid Capability – Supports solar, battery, grid, and generator input

System Components

1. Inverter – Growatt SPE 12000US

• Rated Output Power: 12,000W
• Output Voltage: 120/240VAC split-phase
• Battery Voltage: 48V system
• Dual MPPT tracking for optimized solar input
• Pure sine wave output
• Supports solar, battery, grid, and generator input
• Smart monitoring (WiFi/GPRS)
• Fast transfer switching (~10 ms), support up to 6 units parallel connection to 72kw.
• 5 Year Manufacturer warranty

2. Battery – Growatt ALP LV-US 5kWh 48V LiFePO4 Battery (×3)

• Battery Type: Lithium Iron Phosphate (LiFePO4)
• Total Capacity: 15kWh (3 × 5kWh modules)
• Nominal Voltage: ~51.2V per module
• Depth of Discharge: ~90%+
• Cycle Life: 6000+ cycles
• Modular & stackable design
• Integrated BMS protection
• Remote monitoring & diagnostics
• Scalable to large storage system
• 10 Year manufacturer warranty

3. Solar Panels – 450W Bifacial Panels (×20)

• Total Array Size: 8800W
• Panel Power: 450W each
• Quantity: 20 panels
• Monocrystalline bifacial (TOPCon / N-type)
• Dual-side energy generation (higher yield)
• High efficiency (~22%+)
• Anti-reflective tempered glass
• Durable aluminum frame
• 30 Year performance guarantee

• 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.