The Ameresco Solar 20M is a compact, 20-watt monocrystalline solar module designed for long-term deployment in harsh off-grid environments. With proven reliability across applications from Arctic research to industrial sites, it features a factory-potted junction box with a 15-foot cable for easy and secure installation. Its corrosion-resistant frame and high-transmission tempered glass make it ideal for powering mission-critical systems in remote and hazardous locations.
Key Features:
- 20W monocrystalline panel with 12V nominal output
- Sealed junction box with 15 ft. AWG 18-2 cable for fast connections
- Multimount aluminum frame with bolt channels for flexible mounting
- Durable polyester backsheet and EVA encapsulant for long service life
- Certified for Class I, Division 2 hazardous locations
- Field-proven in extreme climates: heat, snow, salt, and ice
Ideal Applications:
- Oil & gas field instrumentation
- Remote monitoring and telemetry
- SCADA and RTU systems
- Off-grid control panels and lighting
- Industrial battery charging
Electrical Specifications:
| Electrical Characteristics |
| Maximum Power (Pmax) | 20W (STC), 14.4W (NMOT) |
| Voltage at Pmax (Vmpp) | 17.9V (STC), 15.9V (NMOT) |
| Current at Pmax (Impp) | 1.12A (STC), 0.91A (NMOT) |
| Open Circuit Voltage (Voc) | 22.1V (STC), 20.1V (NMOT) |
| Short Circuit Current (Isc) | 1.16A (STC), 0.94A (NMOT) |
| Module Efficiency | 9.5% |
| Nominal Voltage | 12V |
| Power Tolerance | ±10% |
| Efficiency Reduction @ 200W/m² | <5% (9.0% efficiency) |
| Max System Voltage | 50V |
| Max Series Fuse Rating | 3A |
| Limiting Reverse Current | 1.29A |
| Temperature Coeff. (Pmax) | -0.45%/°C |
| Temperature Coeff. (Voc) | -0.360%/°C |
| Temperature Coeff. (Isc) | +0.105%/°C |
| NMOT | 47 ±2°C |
Mechanical Specifications:
| Mechanical Data |
| Dimensions | 421 x 501 x 23 mm (16.6 x 19.7 x 0.9 in) |
| Weight | 2.5 kg (5.5 lbs) |
| Solar Cells | 36 monocrystalline silicon cells in series |
| Front Cover | 3.2 mm high-transmission tempered glass |
| Backsheet | White polyester |
| Encapsulant | EVA |
| Frame | Silver anodized aluminum (multimount frame with dual bolt channels) |
| Junction Box | Lo-Pro junction box with 15 ft. AWG 18-2 cable (red +, black -) |
Certifications:
- IEC 61215 / IEC 61730 / EN equivalents
- UL 1703 & ULC ORD-C1703 (Intertek ETL)
- FM 3611 / CAN CSA C22.2 No. 213-M1987
- Class I, Division 2, Groups A, B, C, D Hazardous Locations
- ISO 9001 Certified Manufacturing
Warranty:
- 2-year warranty on materials and workmanship
- 12-year minimum 90% power output guarantee
- Optional 25-year extended performance warranty available
