Differences

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--- electrical:solar:sizing [2021/06/21 14:08]
frater_secessus [your daily power needs]
+++ electrical:solar:sizing [2021/06/21 14:11]
frater_secessus [charge controller]
@@ Line 122: / Line 122: @@
 ===== solar panel array =====
-Pick a solar panel array output on battery bank capacity.  A common **rule of thumb for matching panels to battery bank** is that there should be 1-2 panel watts per amp-hour of nominal bank capacity.
+Pick a solar panel array output on battery bank capacity.  A common **rule of thumb for matching panels to battery bank** is that there should be **at least** 1 panel watt per amp-hour of nominal bank capacity.
 > "...the person draining their batteries to the 50% range regularly would do much better with a 2 watts to 1Ah ratio, or even 3 to 1." -- SternWake((http://www.cheaprvliving.com/forums/Thread-How-much-solar-do-I-need?pid=278438#pid278438))
@@ Line 147: / Line 147: @@
 There are two general rules:
   - voltage from panels must not exceed controller voltage, ever.
-  - controller rating should be the panels' output plus a safety margin, unless you are [[electrical:solar:overpaneling|overpaneling]] on purpose.
+  - controller rating should be the panels' output plus a safety margin, unless you are [[electrical:solar:overpaneling|overpaneling]] an [[electrical:solar:charge_controller#mppt|MPPT controller]] on purpose.
 ===== augmenting solar =====

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