(single-axis) trackers

[wfvining]

Three things we want PVAnalytics to tell us about PV systems with single-axis trackers (to start).

1. does the system have a tracker (based on power or POA irradiance)
2. does it have a fixed orientation
3. If it does have a tracker, which days is the tracker functioning correctly (and which days is it stuck)

The first two can be addressed by #49 which uses an envelope fitting strategy. The third point can be addressed by #52. Other techniques (e.g. https://doi.org/10.1002/pip.3002) can also be applied to the third point given more information about the system.

I'm opening this to try to keep track of the bigger picture. Add any additional desiderata or methodology for the above items here.