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Compare ET Solar Group ET-M660280BB vs Tianke Energy Saving TESPV 280W Mono

ET Solar Group

ET-M660280BB

Model: ET-M660280BB

Series: ET-M660BB 265-285

Manufacturer: ET Solar Group

Rated Power: 280 Wp

EnergyPal ET Solar Group Solar Panels ET-M660BB 265-285 ET-M660280BB
Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years


Panel Performance

Rated Power: 280 Wp

Efficiency: 17.21 %

Voltage at Maximum Power VMPP: 31.01 V

Current at Maximum Power IMPP: 9.03 A

Open Circuit Voltage VOC: 39.26 V

Short Circuit Current ISC: 9.23 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.43 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.06 %/°C


Solar Panel Attributes

Weight: 18.5 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: unknown

Tianke Energy Saving

TESPV 280W Mono

Model: TESPV 280W Mono

Series: TESPV 280W-300W Mono

Manufacturer: Tianke Energy Saving

Rated Power: 280 Wp

EnergyPal Tianke Energy Saving Solar Panels TESPV 280W-300W Mono TESPV 280W Mono
Warranty Terms

Output Warranty:

12 Years of 90% Output Power, 25 Years of 80% Output Power

Materials Warranty: 10 Years


Panel Performance

Rated Power: 280 Wp

Efficiency: 14.5 %

Voltage at Maximum Power VMPP: 36.1 V

Current at Maximum Power IMPP: 7.76 A

Open Circuit Voltage VOC: 43.32 V

Short Circuit Current ISC: 8.53 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.40 %/°C

Temperature Coefficient of Voc: -0.35 %/°C

Temperature Coefficient of Isc: 0.065 %/°C


Solar Panel Attributes

Weight: 24 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: unknown

Juntion Box Protection Class: unknown

Cable Length: 900 mm

Glass Type: Tempered