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BP 20 Watt 12 Volt Solar Module


BP SX 20 photovoltaic modules are part of BP Solar’s SX module series, providing cost-effective photovoltaic power for DC loads with moderate energy requirements. With 36 multi-crystalline cells in series, they charge batteries efficiently in virtually any climate. Typical commercial applications of these modules, which generate nominal maximum power of 20 watts and 30 watts respectively, include remote telemetry, instrumentation systems, security sensors, signals, and land-based navigation aids.


The BP SX 20U and 30U are designed primarily for industrial use and other particularly demanding applications. Their rugged Universal frame is suitable for severe duty, and exceeds the requirements of all certifying agencies.




  • Minimum power output of 93% for the first 12 years and 85% through 25 years
  • Freedom from defects in materials and workmanship for 2 years


Technical Specifications


Electrical Characteristics
Maximum power - Pmax 20 W
Voltage at Pmax - Vmp 16.8 V
Current at Pmax - lmp 1.19 A
Warranted minimum - Pmax 18 W
Short-circuit current - Isc 1.29 A
Open-circuit voltage - Voc 21 V
Maximum series fuse rating 3.0 A
Temperature coefficient of Isc (0.065 ± 0.015)% / °C
Temperature coefficient of Voc -(80 ± 10)mV / °C
Temperature coefficient of power -(0.5 ± 0.05)% / °C
Nominal Operating Temperature 38 ± 2 ºC
Mechanical Characteristics
Dimensions 502W x 424L x 50D mm
Weight 3.0 kg

Quality and Safety


  • Manufactured in ISO 9001 standard
  • Compliant with the requirements of IEC 61215

Manuals and Downloads





  • Model: SX20U
  • Shipping Weight: 3kg
  • Manufacturer:
    BP Solar