Compare Solar Panels & Manufacturers
Compare SunPower SPR-X21-345 vs First Energy FE290-73P
SPR-X21-345
Model: SPR-X21-345
Series: X-Series X22-345-360-COM Helix
Manufacturer: SunPower
Rated Power: 345 Wp
Warranty Terms
Output Warranty:
unknown
Materials Warranty: 25 Years
Panel Performance
Rated Power: 345 Wp
Efficiency: 21.2 %
Voltage at Maximum Power VMPP: 57.3 V
Current at Maximum Power IMPP: 6.02 A
Open Circuit Voltage VOC: 68.2 V
Short Circuit Current ISC: 6.39 A
Power Tolerance Positive: + 5 %
Maximum System Voltage: 1000 V
Solar Panels Thermal Ranges
Operating Temperature Range: -40~85 °C
Temperature Coefficient of Pmax: -0.29 %/°C
Temperature Coefficient of Voc: unknown
Temperature Coefficient of Isc: unknown
Solar Panel Attributes
Weight: 18.6 kg
Cell Type: Monocrystalline
Cell Count: 96
Glass Thickness: unknown
Juntion Box Protection Class: IP 65
Cable Length: unknown
Glass Type: Tempered, Anti-reflection Coating, High Transmittance
FE290-73P
Model: FE290-73P
Series: FE285-310-72P
Manufacturer: First Energy
Rated Power: 290 Wp
Warranty Terms
Output Warranty:
unknown
Materials Warranty: 12 Years
Panel Performance
Rated Power: 290 Wp
Efficiency: 14.95 %
Voltage at Maximum Power VMPP: 35.5 V
Current at Maximum Power IMPP: 8.17 A
Open Circuit Voltage VOC: 44.4 V
Short Circuit Current ISC: 8.79 A
Power Tolerance Positive: + 1.5 %
Maximum System Voltage: 1000 V
Solar Panels Thermal Ranges
Operating Temperature Range: unknown
Temperature Coefficient of Pmax: unknown
Temperature Coefficient of Voc: unknown
Temperature Coefficient of Isc: unknown
Solar Panel Attributes
Weight: 26 kg
Cell Type: Polycrystalline
Cell Count: 72
Glass Thickness: unknown
Juntion Box Protection Class: unknown
Cable Length: unknown
Glass Type: unknown