pvlib.tracking.calc_axis_tilt

pvlib.tracking.calc_axis_tilt(slope_azimuth, slope_tilt, axis_azimuth)[source]

Calculate tracker axis tilt in the global reference frame when on a sloped plane.

Parameters:
  • slope_azimuth (float) – direction of normal to slope on horizontal [degrees]
  • slope_tilt (float) – tilt of normal to slope relative to vertical [degrees]
  • axis_azimuth (float) – direction of tracker axes on horizontal [degrees]
Returns:

axis_tilt (float) – tilt of tracker [degrees]

See also

pvlib.tracking.singleaxis(), pvlib.tracking.calc_cross_axis_tilt()

Notes

See [1] for derivation of equations.

References

[1]Kevin Anderson and Mark Mikofski, “Slope-Aware Backtracking for Single-Axis Trackers”, Technical Report NREL/TP-5K00-76626, July 2020. https://www.nrel.gov/docs/fy20osti/76626.pdf