Differences

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--- electrical:solar:pvwatts_assumptions [2025/04/12 13:31]
frater_secessus created
+++ electrical:solar:pvwatts_assumptions [2025/04/22 13:44] (current)
frater_secessus [DC-DC assumptions]
@@ Line 1: / Line 1: @@
-Assumptions made in the PVwatts estimate:
+====== solar assumptions ======
-  * flat-mounted panels
-  * with an unobstructed view of the sky (no shading)
-  * on MPPT
+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]].
+====== DC-DC assumptions ======
+  * 50A DC-DC, which the alterator can power and batteries accept
+  * assuming average voltage of 13.0v for Amps-to-Watts conversion.

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