Warning This model has been discontinued by the manufacturer.

Generate a Solar Permit Package for a design using Sunpower SPR-X21-255 (255W)

With SolarDesignTool, you can create a design from scratch and generate a full PV permit package in as little as 15 minutes.

This page contains information about the Sunpower SPR-X21-255 (255W) solar panel. To compare this to other PV modules, click here.

DC Electrical Characteristics

  • STC Power Rating 255W
  • PTC Power Rating 241.7W 1
  • STC Power per unit of area 19.0W/ft2 (205.0W/m2)
  • Peak Efficiency 20.5%
  • Power Tolerances 0%/+5%
  • Number of Cells 72
  • Nominal Voltage not applicable
  • Imp 5.95A
  • Vmp 42.8V
  • Isc 6.3A
  • Voc 51V
  • NOCT 41.5°C
  • Temp. Coefficient of Power -0.3%/K
  • Temp. Coefficient of Voltage -0.126V/K
  • Series Fuse Rating 20A
  • Maximum System Voltage 1000V

Mechanical Characteristics

  • Type Monocrystalline Silicon
  • Output Terminal Type Multicontact Connector Type 4
  • Output Cable Wire Gauge 12 AWG
  • Output Cable Wire Type PV Wire
  • Output Cable Wire Length 39.4in (1,000mm)
  • Frame Color Clear
  • Backsheet Color data not available
  • Length 61.4in (1,559mm)
  • Width 31.4in (798mm)
  • Depth 1.8in (46mm)
  • Weight 33.1lb (15kg)
  • Installation Method Rack-Mounted

Warranty and Certifications

  • 80% Power Output Warranty Period 25yrs
  • 90% Power Output Warranty Period 12yrs
  • Workmanship Warranty Period 25yrs
  • UL Fire Classification data not available
  • Compliances UL 1703
  • CSI Listed Yes

This web page is not the manufacturer's official data sheet and is not endorsed by the manufacturer in any way. For an official data sheet, please go to Sunpower's website.