| Model Type | SP400W-24M |
| Peak Power(Pmax) | 400 |
| Maximum Power Voltage(Vmp) | 29.05V |
| Maximum Power Current(Imp) | 13.77A |
| Open Circuit Voltage(Voc) | 34.18V |
| Short Circuit Current(Isc) | 14.73A |
| %) | 19.62 |
| Maximum System Voltage(V) | 1500 |
| Maximum Series Fuse Rating(A) | 20 |
| Power Tolerance | 0～+3% |
| Pmax Temperature Coefficients(W/°C) | -0.40% |
| Voc Temperature Coefficients(V/°C) | -0.33% |
| Isc Temperature Coefficients(A/°C) | 0.05% |
| NOCT Nominal Operating Cell Temperature(°C) | 45±2 |
| Operating and Storage Temperature(°C) | -40～+85 |
1. What makes this 400W flexible panel unique?
It's ultra-thin, lightweight, and designed to bend, ideal for mobile or curved surface installations.
2. Can this module be used on vehicles or marine setups?
Yes, it's perfect for RVs, boats, or trailers where rigid panels can't be mounted easily.
3. How durable is the panel outdoors long term?
Rated IP65/IP67, it's built to withstand rain, dust, salt mist, and harsh environmental exposure.
4. What are its electrical and operating limits?
It supports up to 1500V systems, rated for 15A fuse, and maintains output from –40°C to +85°C.
5. How is the installation process handled?
It includes pre-attached 90 cm UV-resistant cables with MC4 connectors for quick, secure installation.
6. How many solar panels are needed to produce 150 kWh per day?
To achieve a system producing 150 kWh per day, typically 70 to 100 commercial-grade solar panels must be installed.
Optimal conditions: Approximately 70–80 panels (450W panels, high-irradiance region)
Average conditions: Approximately 90–100 panels (400W panels, moderate irradiance)
Conservative estimate: Approximately 100+ panels (accounting for significant shading or unfavorable roof angles)
Panel rated power: 400–600 watts (commercial-grade monocrystalline silicon)
Average daily peak sunshine hours (PSH): 4.5–5.5 hours/day
System efficiency: 80–85% after accounting for losses
Daily generation per 500W panel under 5PSH conditions:
500W × 5 × 0.85 = 2.13 kWh/day (per panel)
Required for 150 kWh/day:
150 ÷ 2.13 ≈ 70 modules (500W each)
or
≈ 90–100 modules (if using 400W modules or in low-irradiance areas)
70 × 0.5 kW = 35 kW system capacity
Commercial-grade modules (approx. 2 m² per panel) require 500–3,000 square feet of roof or ground space.
Typical cost: $80,000 to $120,000+ (before subsidies).
Federal Incentives: 30% Investment Tax Credit (ITC) reduces upfront costs.
Depreciation policy: MACRS accelerated depreciation provides additional savings.
Return on investment: Most systems pay for themselves in 5-8 years, followed by over 15 years of essentially free electricity.
A 35 kW system offsets approximately 4,500 kWh of monthly electricity consumption, suitable for small manufacturing units, retail centers, or hotel facilities with moderate energy demands.
Inverters: Utilize multiple commercial string or central inverters to increase capacity.
Power Distribution: Ensure compatibility with three-phase power sources.
Monitoring System: Deploy commercial-grade software to track energy production, savings, and system performance.
