smkettner

Southern California

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Generator and inverter in parallel
And I believe you can parallel up to six of these inverters.
Or were you thinking a couple MSW inverters for $100?
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TMBLSN

Washington State

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Yeah, I can brainstorm.
If the A/C can run at 2000W, that's over 150A @ 12V. If you need more than 2000W, you're talking about increasing that.
So, even 20 minutes will consume 50 Amp-Hours. What is your battery (bank?) rated for?
We can start hypothesizing about all kinds of interesting ways to hookup very expensive equipment, but it's just not practical to run an A/C from a battery bank.
I don't understand what any of this has to do with Ed Bagley Jr's 'green' house. You won't be charging that battery in a 'green' way.
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Bubby's RV

CA

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Running A/C from batteries can be done, but it's not cheap. Sean & Louise can run at least some of their A/C on Odyssey. They use one inverter, a Xantrex/Trace SW4024.
Caution, this has to be the most complex electrical system on any rig. If you paw around their site, you may decide they're crazy (or not) but certainly interesting!
John, Winnebago Minnie 24V
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ben67

GA

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TMBLSN wrote: Yeah, I can brainstorm.
If the A/C can run at 2000W, that's over 150A @ 12V. If you need more than 2000W, you're talking about increasing that.
So, even 20 minutes will consume 50 Amp-Hours. What is your battery (bank?) rated for?
We can start hypothesizing about all kinds of interesting ways to hookup very expensive equipment, but it's just not practical to run an A/C from a battery bank.
I don't understand what any of this has to do with Ed Bagley Jr's 'green' house. You won't be charging that battery in a 'green' way.
Thanks. This is useful info. Yeah guess it wouldn't be very "green" to recharge the batts with my Cummins CTD. But I would like to figure a way I do do some of it with solar,bio fuels or what ever.
I want to start running BioFuels in my CTD as soon as I can find a good source of them. If I can run my RV off of these green fuels as well as drive my truck on them all the better.
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MELM

GA

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I don't know of any inverters designed for RV service that can be parallelled, but the ones for the solar systems can be. However, some of them often have very high voltage inputs.
Here is a link to Xantrex Inverter/Chargers. This is a page of links to their inverter/chargers.
They do have some 3000 watt RV inverter/chargers. Look at the Prosine 3.0 with a 4000 watt surge; the RS3000 with a 7500 watt surge; and the RV series GS has a 3000 watt model - no surge rating in the spec.
The SW-120VAC/60Hz are for off grid service and have several sizes that are "stackable" and have a 24 volt DC input voltage.
With the 3000 watt inverters, you approach the 3600 watts that the 30 amp RV service provides and still can use the 12 volt input.
With the off grid units, you may find enough power in a single unit and a dedicated 24 volt battery bank is doable. There may be some issues of them meeting NEC code for RV service, and they may not do well in the shock and vibration present in RV service.
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ben67

GA

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MELM wrote: I don't know of any inverters designed for RV service that can be parallelled, but the ones for the solar systems can be. However, some of them often have very high voltage inputs.
Here is a link to Xantrex Inverter/Chargers. This is a page of links to their inverter/chargers.
They do have some 3000 watt RV inverter/chargers. Look at the Prosine 3.0 with a 4000 watt surge; the RS3000 with a 7500 watt surge; and the RV series GS has a 3000 watt model - no surge rating in the spec.
The SW-120VAC/60Hz are for off grid service and have several sizes that are "stackable" and have a 24 volt DC input voltage.
With the 3000 watt inverters, you approach the 3600 watts that the 30 amp RV service provides and still can use the 12 volt input.
With the off grid units, you may find enough power in a single unit and a dedicated 24 volt battery bank is doable. There may be some issues of them meeting NEC code for RV service, and they may not do well in the shock and vibration present in RV service.
Thanks! Another great answer!. Great info thanks a bunch. Much better then saying I was nuts. This is an idea I've been kicking around for the home and the RV "cause" I want to tell the power company to pound sand.
* This post was
edited 04/29/08 09:06pm by ben67 *
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reluyog

Colorado

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I run a 2000 watt sine inverter. We've run a small room air conditioner on batteries for extended times. It helps a lot to have some panels in the sun assisting voltage levels while running. Nearly half a ton of house batteries on board. Another 240 for starting.
Damian
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Bob & Arlene

DOMICILE Seaford, Delaware

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Victron energy makes just what you are looking for.
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TXiceman

(Near) Houston,TX

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That will take another trailer load of just batteries to make it work.
Ken
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wa8yxm

Wherever I happen to park

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In very rounded figures a pair of U-220's or T-105's has about 1,000 usable watts if fully charged.
Consider this
Now: as to parallel inverters, Yes, it can be done, However only a few models allow it and I'm not sure which ones
there is a "Booster" kit that someone makes, about 3 or 4 thousand IIRC (And I'm very very unsure of the Recall on this one) which is designed specifically to go between a honda 2000 and a RV. It kicks in only when needed.
I suspect it would work in your case. But the key word is "Suspect"
Nothin adds excitment like something that is none of your business
John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377
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