Differences

This shows you the differences between two versions of the page.

--- electrical:autonomy [2024/08/23 21:01]
frater_secessus [TL;DR]
+++ electrical:autonomy [2024/08/23 21:12] (current)
frater_secessus [minimizing the required days of autonomy]
@@ Line 115: / Line 115: @@
   * reduce optional power consumption during periods of low solar harvest.  For example, one's //average// consumption might be >2kWh/day but one might only //need// 1kWh/day when power is tight.
   * think in fractional days of autonomy (see above)
-  * If your schedule is flexible you might plan to drive (DC-DC charge) on days that are forecast to be rainy/overcast/whatever.
+  * If your schedule is flexible you might adjust your plans for days where it is forecast to be rainy/overcast/whatever:
-  * assuming you have space, max out the roof with as much used [[electrical:solar:panels#panel_voltage|higher-voltage panel) as will fit.  600w of used can cost the same as 200w of new, and power harvest would be tripled in poor conditions.
+    * plan your relocation drives for those days so you can take advantage of [[electrical:12v:alternator|charging by alternator]]
-  * a small portable array on its own controller can punch far above its weight:  sit out in the sun angle correctly when you are hiding in shade or in winter when sun is low in the sky
+    * if you schedule a day in a paid campsite from time to time to dump tanks and take on water, do so on projected days of poor solar harvest.  This way you can also [[electrical:converter|charge from the power pedestal]].
-  * it's a bit extreme, but a [[electrical:12v:alternator_details#external_regulation|second alternator setup with external regulation]] might be cheaper than an additional 300Ah-600Ah of premium LiFePO4.  Setups like this can yield maximal alternator charging without risk to the alternator.
+  * assuming you have space, max out the roof with as much used [[electrical:solar:panels#panel_voltage|higher-voltage panel]] as will fit.  600w of used can cost the same as 200w of new, and power harvest would be tripled in poor conditions.
+  * a small portable array on its own controller can punch far above its weight:  sit it out in the sun angled correctly when you are hiding in shade or in winter when sun is low in the sky
+  * it's a bit extreme, but a [[electrical:12v:alternator_details#external_regulation|second alternator setup with external regulation]] might be cheaper than a a huge bank of premium LiFePO4.  Setups like this can yield maximal alternator charging without risking overheating.

RV and vandwellers wiki

User Tools

Site Tools

Differences

Page Tools