Core Components & Technical Requirements
- Photovoltaic Modules
- Monocrystalline: 18-22% efficiency (higher cost)
- Polycrystalline: 15-18% efficiency (cost-effective)
- Energy Storage Batteries
- Lithium-ion: 5-10 years lifespan, high energy density
- Lead-acid: Lower cost, frequent maintenance required
- Inverters
- Grid-tied/Off-grid/Hybrid types
- MPPT technology required (≥95% efficiency)
- Intelligent Management System
- BMS battery management & remote APP monitoring
- Peak-valley tariff optimization & fault alerts
System Design & Capacity Planning
| Parameter | Recommendation |
|---|---|
| Daily PV Capacity | 1.2-1.5x daily electricity consumption |
| Battery Capacity | 60-80% of 24-hour usage (e.g., 6-8kWh for 10kWh/day) |
| System Types | Grid-tied (grid-connected areas), Off-grid (remote locations), Hybrid (recommended for urban use) |
Recommended Brands & Products
- Delisidai
- Hybrid PV system with LiFePO4 battery (3000+ cycles)
- Grid/battery hybrid management
- Huachenghang
- HPW series inverters (6-15kW)
- Emergency charging function
- Guangfurumu
- 15kWh mobile battery (51.2V280Ah)
- CE/UL certified, multi-scenario compatible
Installation & Maintenance Tips
- Roof load test (>30kg/㎡) → Mount installation → System debugging
- Regular panel cleaning (quarterly), battery capacity check every 2 years
- Monitor system performance through dedicated APP
Economic Benefits & Policies
- Initial cost: 2-3 yuan/Watt (6-8 year ROI)
- Government subsidies: 0.3-0.5 yuan/kWh + 30% tax deduction
