Overview
This video compares the EG4 PowerPro and Solar Edge Home battery storage systems across six categories, highlighting strengths, weaknesses, and key features to help homeowners and installers make informed decisions about solar battery solutions.
System Architectures
- Solar Edge uses a high-voltage, DC-coupled, proprietary system with module-level optimization and monitoring.
- EG4 uses a modular, low-voltage DC-coupled architecture, allowing compatibility with third-party 48V batteries but evaluated here with EG4's own battery and hybrid inverter.
Evaluation Categories
- The systems are scored in six categories: power output, storage capacity, warranty, cost, ease of installation, and X factor (unique features/advantages).
Solar Edge Home Battery
- Continuous power output: 5 kW; surge power: 7.5 kW.
- Usable storage capacity: 9.7 kWh per battery.
- Standard 10-year warranty.
- Higher cost per kWh of installed storage compared to other options.
- Installation requires at least two persons; battery weighs over 200 lbs.
- X factor: +2 points for module-level features and accessories like bidirectional EV charger.
- Total score: 17 out of 30 points.
EG4 PowerPro System
- Continuous power output: 12 kW; surge power: 15 kW.
- Usable storage capacity: 14.3 kWh per battery (40% more than Solar Edge).
- Standard 10-year warranty.
- Much lower cost per installed kWh, especially when scaling with multiple batteries.
- Installation is mid-level in difficulty; heavy battery requires a two-person team.
- X factor: +4 points for smart load control, generator integration, black start, and hybrid inverter features.
- Upcoming Flex Boss 21 inverter increases output and will be US-manufactured by late 2025.
- Total score: 25 out of 30 points.
Final Comparison & Recommendations
- EG4 PowerPro outperforms Solar Edge in power, capacity, and cost, especially for whole-home backup and larger systems.
- Solar Edge remains a good option mainly for those already invested in the Solar Edge ecosystem.
- Both systems provide standard 10-year warranties and require multi-person installation.
- Homeowners are encouraged to compare multiple solutions and seek expert advice or price quotes.
Decisions
- EG4 PowerPro rated as the superior value for most new whole-home battery backup installations.
Recommendations / Advice
- Homeowners should consider their existing equipment and desired level of system flexibility before choosing a solution.
- Seek expert consultation or use online calculators for cost estimates tailored to specific needs.