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Old 02-13-2020, 06:12 PM   #1
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Dream power management

I've been researching and pondering. I realize what I want doesn't exist from the factory but I figure Newmar reads this so I might as well lay it out and maybe they will do this someday...

Note, a simple visio diagram should appear just below:



This of course is ridiculously over simplified. But the idea is to use soft starts on all AC, have as much solar as you can on the roof and then a monster sized lightweight high power density Lifepo battery bank to draw from. On a good day you can go about life with no generator or shore power. On a bad day you suck the batts down and use the genny under heavy load to juice them back up as fast as possible during the allowed times (EG most state/NP rules of 8-10am and 4-8pm).

Dream state is this is done via no human intervention via my SilverLeaf panel/app. I arrive, set in my allowed genny times then the "machine" picks the best source(s) to charge up the batts. I go about my day using AC, stove, TV etc. About the only concession I'd be wanting to make is the dryer. As I'd probably want a water source too. And then I'm full hook up anyway.

One can dream right?
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Old 02-14-2020, 06:25 AM   #2
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The visio isn't appearing but your Want is what all solar RVs do - right?
There is a forum section "Going Green" that concentrates on this topic.
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Old 02-14-2020, 07:13 AM   #3
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What percentage of RVers camp off grid? I doubt if it's currently even 10%, excluding those who overnight at Walmart and such, and most of them are only do it about 70% of the time. The cost of design, testing and warranty compared to return just isn't there. Most of those wanting it would probably still do it themselves.
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Old 02-14-2020, 08:39 AM   #4
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MH Electrical by Dave Dye, on Flickr


Let's see if it appears now. Can't edit the original.
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Old 02-14-2020, 11:41 AM   #5
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That looks like a standard solar system RV setup.

Modes:
Run off campground power
Run off generator
Run off battery (lithium or AGM or lead acid)
Run off battery while being charged by solar.

I just posted a thread that discusses a "new" mode:
Run House electric off of RV solar with optional energy cost offset by feeding Grid with solar excess.

https://www.irv2.com/forums/f56/
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Old 02-14-2020, 01:41 PM   #6
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Thanks. Good reading for sure. I guess the part I'm struggling with the most is the inverter/charger. IE can I have 30amp pedestal power + solar automagically charge the batteries as required and not have to hit breakers or plug/unplug stuff. Still seems like there is human intervention or human decisions needed. or maybe it's because what Newmar has shipped in past years simply doesn't have that capability? And if I spend money I can replace the stock one with one that does.

I can see that individual sources are supported but not 2 small sources at the same time. IE bad sunlight/low solar + 30amp = 50amp.
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Old 02-14-2020, 04:54 PM   #7
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Are you saying you have a Newmar RV that has a Newmar installed solar system?

Your signature says "coachless"

Most RV solar that I am seeing have an automatic solar charger between the solar panels and the batteries.

The inverter is fed from the batteries and is not related to charging.

Read the Going Green posts.
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Old 02-14-2020, 05:02 PM   #8
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I have no coach at the moment. But as I understood things is that the inverter and charger were in the same unit. If they are separated in the MA or DS lines then that will simplify things. Iím near the beginning of this research and am fully aware of my ignorance . My old Itasca had a converter all in one and no inverter at all. I have a lot to learn indeed
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Old 02-14-2020, 05:05 PM   #9
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This is "typical" RV 12 volt setup...and a solar setup.

The Solar charge controller is separate from the inverter / charger.
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