21KW Off-Grid Solar System - 120/240V AC output with 30Kwh Battery
21KW Off-Grid Solar System - 120/240V AC output with 30Kwh Battery
Regular price
$32,999.99 CAD
Regular price
$49,999.99 CAD
Sale price
$32,999.99 CAD
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- All-in-One Kit: Complete package with inverter system, batteries, panels, wiring, and breakers.
- High-Power Output: 21kW total from 6x Growatt SPF3500T inverters (120/240V split phase).
- Large Energy Storage: 30kWh battery bank using 6x Growatt AXE 5.0L-C1 LiFePO₄ modules.
- Massive Solar Array: 48x 440W panels for a combined 21.12kW solar generation capacity.
- Smart Monitoring: SHINE Wi-Fi module provides real-time remote system tracking.
- Safe & Durable: Includes UV-resistant cabling and comprehensive DC/AC breaker protection.
- Modular Battery Design: Stackable and cable-free for quick, flexible installation.
- Built for Harsh Conditions: Panels with anti-reflective glass and corrosion-resistant frames.
- Long Warranty: 10-year battery, 2-year inverter, and 12-year solar panel warranties.
- Scalable & Flexible: Expandable system design for future energy needs.
- Off-Grid Independence: Reliable power solution for grid-free or backup applications.
- Eco-Friendly Power: Reduce reliance on fossil fuels and lower electricity bills.

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- Description
- Includes
- Specifications
- Datasheets
- User Manuals
- Reviews
Key Components & Features
1. Inverters – 6x Growatt SPF3500T (21kW total output)
- Parallel Configuration: Six 3.5kW inverters combined for 21kW total AC output.
- Dual Output Voltage: 120V/240V split-phase output for full compatibility with North American systems.
- Off-Grid Independence: Supports stand-alone operation for remote sites or energy backup.
- MPPT Efficiency: Integrated MPPT charge controller ensures optimal solar harvesting.
- Remote Monitoring: SHINE Wi-Fi module provides real-time diagnostics and performance data.
2. Battery – Growatt AXE 5.0L-C1 LiFePO₄ (x6 for 30kWh total)
- Modular Storage: 5kWh per unit, stacked to create a 30kWh reliable storage bank.
- Safe Technology: LiFePO₄ chemistry offers excellent thermal and cycle stability.
- Integrated BMS: Real-time battery management for protection and performance.
- Remote Updates: Wi-Fi/GPRS support for firmware upgrades and remote support.
3. Solar Panels – 48x 440W Monocrystalline Panels (21.12kW total)
- High Output: Each 440W panel delivers exceptional power conversion even in low light.
- Rugged Design: Weather-resistant anodized aluminum frame with tempered anti-reflective glass.
- Shading Mitigation: Bypass diodes reduce power loss from partial shading.
- Easy Installation: Panels come with pre-drilled mounting holes for simple setup.
- Longevity: Over 30-year service life with 12-year product warranty.
Protection & Connectivity
- PV Cabling: Includes UV-resistant 6mm² solar DC cables for efficient and secure transmission.
- DC Protection: 6x 32A/1000V breakers protect each PV string individually.
- AC Load Safety: 80A/240V AC breaker ensures safe power delivery to household circuits.
- System Monitoring: Track performance and troubleshoot in real time with the SHINE Wi-Fi module.
Why Choose the Growatt Max 21kW Off-Grid System?
- Massive Capacity: Supports large homes, businesses, or multiple off-grid structures.
- Energy Independence: Operates independently of the grid, with full solar and battery integration.
- Scalable & Flexible: Expandable storage and panel configurations as needed.
- Long-Term Reliability: Premium-grade warranties on inverters, batteries, and panels.
- Sustainable Solution: Reduce emissions and electricity costs with renewable power.
What’s in the Box?
- 6x Growatt SPF3500T Inverters (21kW total)
- 6x Growatt AXE 5.0L-C1 Batteries (30kWh total)
- 48x 440W Monocrystalline Solar Panels
- 6x 32A/1000V PV DC Breakers
- Breaker Box
- 1x SHINE Wi-Fi Monitoring Module
- 100 Ft UV-Resistant 6mm² 10 AWG DC Cables
Key Features
- Massive Output: 21kW from 6x Growatt SPF3500T inverters with split-phase 120V/240V AC output.
- Ample Storage: 30kWh total battery capacity using safe, long-life LiFePO4 chemistry.
- Solar Power: 48x 440W monocrystalline panels for a total of 21.12kW clean energy generation.
- Built-In Protection: Type II surge protection, MPPT charge control, and circuit breakers for safe operation.
- Remote Monitoring: Real-time tracking and control via Growatt SHINE Wi-Fi module.
- Flexible Design: Supports off-grid operation and scalable expansion.













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