Using SunSolve Yield to determine bifacial inputs for PVSyst

· Malcolm Abbott · SunSolve Yield Videos

The simple view factor model used by PVSyst, Rated Power, Solar Farmer, PVLib, SAM and others requires adjustment factors to deal with the complexities presented by real-world bifacial installations.

The video covers generations of the following bifacial factors.

  • Transmission Factor (fT) - Light passing between or through modules
  • Albedo Factor (fA) - Ground reflectance
  • Structural Shading Factor (fS) - Shading from torque-tube, posts, clamps, etc.
  • Rear Mismatch Factor (fMR) - Reduction in the extra power arising from rear illumination due to cell-to-cell mismatch.
  • Bifaciality Factor (fB) - Module response to rear illumination relative to front illumination.