pvlib.tracking.SingleAxisTracker¶
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class
pvlib.tracking.SingleAxisTracker(axis_tilt=0, axis_azimuth=0, max_angle=90, backtrack=True, gcr=0.2857142857142857, **kwargs)[source]¶ Inherits the PV modeling methods from :ref:PVSystem:.
- axis_tilt : float, default 0
- The tilt of the axis of rotation (i.e, the y-axis defined by axis_azimuth) with respect to horizontal, in decimal degrees.
- axis_azimuth : float, default 0
- A value denoting the compass direction along which the axis of rotation lies. Measured in decimal degrees East of North.
- max_angle : float, default 90
- A value denoting the maximum rotation angle, in decimal degrees, of the one-axis tracker from its horizontal position (horizontal if axis_tilt = 0). A max_angle of 90 degrees allows the tracker to rotate to a vertical position to point the panel towards a horizon. max_angle of 180 degrees allows for full rotation.
- backtrack : bool, default True
- Controls whether the tracker has the capability to “backtrack” to avoid row-to-row shading. False denotes no backtrack capability. True denotes backtrack capability.
- gcr : float, default 2.0/7.0
- A value denoting the ground coverage ratio of a tracker system which utilizes backtracking; i.e. the ratio between the PV array surface area to total ground area. A tracker system with modules 2 meters wide, centered on the tracking axis, with 6 meters between the tracking axes has a gcr of 2/6=0.333. If gcr is not provided, a gcr of 2/7 is default. gcr must be <=1.