Assumptions made in the [[electrical:solar:pvwatts|PVwatts]] estimate:

  * flat-mounted((no tilt)), air-gapped panels((mounted with space underneath them to allow [[electrical:solar:output#panel_temperature|cooling]]))
  * with an unobstructed view of the sky (no [[electrical:solar:shading|shade]])
  * on an MPPT [[electrical:solar:charge_controller|solar charge controller]]


These averages are based on insolation and meteorological data for many years and are specific to that location.  Actual daily harvest will vary, so [[electrical:solar:overpaneling#vs_charge_controller|overpanel]] if you can and have sufficient battery bank capacity to [[electrical:autonomy|get you through temporary lulls in harvest]].