SOLARIA SOLAR-PowerXT 315R-BX 315 Watt Solar Panel
SOLARIA SOLAR-PowerXT 315R-BX 315 Watt Solar Panel
SOLARIA SOLAR-PowerXT 315R-BX 315 Watt Solar Panel
SOLARIA SOLAR-PowerXT 315R-BX 315 Watt Solar Panel

SOLARIA SOLAR-PowerXT 315R-BX 315 Watt Solar Panel

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Solaria PowerXT 315R-BX 315 Watt Black Solar Panel
  • 315 Watt solar panel using solder-free ribbon-less design
  • The PowerXT 315R-BX has the highest power rating in this class
  • Less racking, lower labor costs
  • Higher energy production
  • The Solaria 315R-BX features a sleek black frame with black backing

Warranty and Certifications

Close-up of Solaria PowerXT solar cells w/ black backsheet.

  • 25 Year Power and Product Warranty
  • UL 1703 / IEC 61215 / IEC 61730
  • Fire Type (UL 1703) 1

At a 315W power rating, the PowerXT™ 315R-BK black PV module is one of the highest power rated solar modules available in the industry. The PowerXT 315R-BX is an aesthetically pleasing choice for home solar powered applications for reducing the number of modules, installation time, and balance of system components required for a project.

Developed in California, Solaria’s patented cell cutting and assembly form ‘high density’ sub-strings, larger than conventional solar cells, which are packed more efficiently and reduce inactive space between cells. By utilizing a ribbon-less interconnection process, cells are cut and overlaid without soldering which creates a highly reliable sub-strings assembly. These modules are built on its proprietary technology, which utilizes an advanced cell interconnect and module production processes.

Solaria PowerXT 315R-BX Solar Panel Dimensions

Model Number PowerXT 315-BX
STC Rating 315.0 Watts
PTC Rating 290.2
Open Circuit Voltage (Voc) 44.2 Volts
Short Circuit Current (Isc) 9.42 Amps
Frame Color Black Anodized
Origin USA / Korea
Power Tolerance -0 / +3%
Module Efficiency 18.7%
Weight 44.0 lbs.
Length 63.9 in.
Width 41.54 in.
Height 1.57 in.


Solaria PowerXT 315R-BX Black Solar Panel Review

Higher Efficiency, Higher Power
With 18.7% efficiency, higher than conventional 60 cell modules at 16-17% efficiency.
Large form factor resulting in one of the highest power modules available in the market.

Lower System Costs
The higher power module translates to less modules required per area, reducing the balance of system components and installation costs.

Improved Shading Tolerance
Sub-strings are interconnected in parallel within each row, dramatically lower shading losses and increasing energy yield.

Rugged Design
Thicker glass and frame provides a rugged module design ideal for ground-mount and tracker applications.

Durability and Reliability
Ribbon-less, solder-free design removes wiring between cells, designed for reliability beyond 25 years.

Solaria is a 100% US owned solar manufacturer and manufactures in Silicon Valley,



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