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Sunpower 315 Solar Panels

The Sunpower 315 watt solar panel is one of the highest efficiency PV modules available today. Powered by Sunpower solar cell technology, the 315 provides conversion efficiencies 19.3%. Designed for residential or commercial rooftops, the panel delivers high energy production for any home or business.

Sunpower solar panels are only available for purchase with installation by authorized dealers. They are NOT sold separately.

Sunpower 315 Prices

We make it transparent and easy to compare solar prices, but you can not buy Sunpower panels separately. However, we can compare the real-world Sunpower 315 panel pricing information that is publicly available from the official reporting site of the California Solar Initiative (CSI) Program Administrators and the California Public Utilities Commission.

This presents actual costs and program data for Sunpower 315 watt modules and systems installed in California. These prices include modules, inverters, mounting, balance of systems (BOS) component and installation labor. Don't pay more than you have to; find some of the lowest prices for high performance solar panels here at FreeCleanSolar.com.
  • Average Sunpower 315 Cost per DC Watt Installed: $7.47
  • Compare to FreeCleanSolar 8 kW system for $2.15 per watt

  • Sunpower Installation Dates: November 2009 to June 2013
  • Average Rated Power per System: 7.7 kW (7,744 watts DC)
  • Average # Solar Modules per System: 24
  • Average Sunpower 315 System Installation Cost: $57,242
  • Average Cost per Sunpower 315 Module Installed: $2,356
  • Total # Sunpower 315 Modules installed: 3,772
  • Total # Sunpower 315 Systems installed: 154


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Review Sunpower 315 Specifications

Here is the official datasheet with electrical and mechanical characteristics, test conditions, warranty and certifications for the Sunpower 315 watt solar panels, model # SPR-315, SPR-E19-315, SPR-315E-WHT-D, SPR-315E-WHT-U, SPR-315NE-WHT-D, SPR-E19-315-COM, T5-SPR-315, T5-SPR-315E, PL-SUNP-SPR-315E.

  • STC Peak Power (+/i5%) Pmax: 315 watts
  • CEC PTC Rating Pmax: 290 watts
  • Module Efficiency: 19.3%
  • AC kWh generated based on NREL PV Watts estimate
  • AC power monthly: 39.375 kWh
  • AC power per year: 472.5 kWh
  • Rated Voltage Vmp: 54.7 V
  • Rated Current Imp: 5.76 A
  • Open Circuit Voltage Voc: 64.6 V
  • Short Circuit Current Isc: 6.14 A
  • Maximum System Voltage: 1000 V IEC, 600 V UL
  • Series Fuse Rating: 15 A
  • Solar Cells Technology: 96 mono-crystalline
  • Front Glass: High transmission tempered glass with anti-reflective coating
  • Dimensions: 61.39 x 41.18 x 1.81 inches
  • Weight: 41 lbs
  • Junction Box: IP-65 rated with 3 bypass diodes
  • Output Cables: 35.43 inches, multi-contact connectors
  • Frame Construction: Anodized aluminum alloy type 6063, Black
  • Operating Temperature Range: -40F to +185F
  • Maximum Wind and Snow Load: 50 psf, 2400 Pascals, front and back
  • Hail Impact Resistance: 25mm, 1 inch hail at 23 m/s or 51 mph
  • Product Warranty: 10 years
  • Power Warranty: 25 years
  • Certifications: UL listed (UL 1703), Class C Fire Rating


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