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Old 10-17-2011, 04:51 PM   #16
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Inverter wiring to panel


It costs a ton of money to go off grid. If that is your goal, with just 2 deep cycle batts, stick to LED lights and a radio, maybe a few other small devices. Do all that without an inverter and keep your runs short and you will gain efficiency too. For everything else, forget electricity.

I realize you are still in the research phase, but you come off as completely out of touch with the realities of off grid living. To illustrate how inefficient cloths dryers are; Energy Star does not even consider anything in the whole segment. In conclusion; forget your fantasies of going off grid and living life as normal without spending close to $100k total

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Old 10-17-2011, 06:20 PM   #17
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Batteries would be charged off an Ac outlet on the inverter to a charger. Now, size would depend on what I'm trying to power. Ideally, what I want to do is power the refrig, two freezers and hopefully and furnace blower motor (furnace is gas). Anything else would be gravy. Dryer seems to be out of reach.

Just investigating the possibilities but it appears it likely may not work the way I'd like it too. Still would be cheaper than a solar array. My neighbor has a 3KW array at $30,000. He gets credits from the power company.

I'd like to power a few things and then when power does go out, I still have heat and cold food. Can always heat water on the stove if the 90-gallon tank gets used up.

Thank you again.
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Old 10-17-2011, 06:27 PM   #18
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Consult an E.E.
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Old 10-17-2011, 06:34 PM   #19
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As I said, thanks. Not trying to go fully off grid, just a few things. I'm not clueless about what I want, just how to get there without killing the bank account. May not be possible.
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Old 10-17-2011, 06:39 PM   #20
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Speedymonk,

I see your in Washington, any chance you have a stream or creek adjoining your property? If so, micro-hydro is the way to go. I can PM some details if this applies. Its much more cost effective than solar or wind.
If your not on a stream, then these other guys are telling the truth. Its would require a massive battery bank to power all that stuff at once. Best case scenario is your frig and lights. Otherwise your gonna spend a ton of cash keeping those batteries charged. Last time I looked a decent deep cycle battery was about 250$. And you'd need around 14 or more to power all those appliances for about 5-8 hours (if your lucky).
Id recommend a gen-set. Sure you gotta keep fuel around, but it beats spending 10,000$ (low end micro-hydro) to 40,000$ (high end solar).
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Old 10-17-2011, 06:51 PM   #21
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Thanks Socketman. I appreciate it. No... not close to any stream or avaialble water. Some lights and refrig/freezers might just be it. Would still cut the monthly bill down.

I appreciate all who replied.
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Old 10-17-2011, 08:24 PM   #22
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Quote:
Originally Posted by speedymonk View Post
Batteries would be charged off an Ac outlet on the inverter to a charger. Now, size would depend on what I'm trying to power. Ideally, what I want to do is power the refrig, two freezers and hopefully and furnace blower motor (furnace is gas). Anything else would be gravy. Dryer seems to be out of reach.

Just investigating the possibilities but it appears it likely may not work the way I'd like it too. Still would be cheaper than a solar array. My neighbor has a 3KW array at $30,000. He gets credits from the power company.

I'd like to power a few things and then when power does go out, I still have heat and cold food. Can always heat water on the stove if the 90-gallon tank gets used up.

Thank you again.
Never going to happen with what you are planning on doing. Again, Battery backup banks are meant to be temporary sources until either power is restored through running up a genset, or a genset is brought online by bringing it to the area that the equipment is in, that is affected.
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Old 10-17-2011, 11:46 PM   #23
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Speedymonk,

I see your in Washington, any chance you have a stream or creek adjoining your property? If so, micro-hydro is the way to go. I can PM some details if this applies. Its much more cost effective than solar or wind.
If your not on a stream, then these other guys are telling the truth. Its would require a massive battery bank to power all that stuff at once. Best case scenario is your frig and lights. Otherwise your gonna spend a ton of cash keeping those batteries charged. Last time I looked a decent deep cycle battery was about 250$. And you'd need around 14 or more to power all those appliances for about 5-8 hours (if your lucky).
Id recommend a gen-set. Sure you gotta keep fuel around, but it beats spending 10,000$ (low end micro-hydro) to 40,000$ (high end solar).
Messing with streams gets you into a whole jungle of regulations. Even if you have an appropriate waterway, I wouldn't count on being able to implement that form of green energy. As a matter of fact, it seams like hydro dams are getting ripped out and none are getting built because of the ecological impact.
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Old 10-18-2011, 12:11 AM   #24
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Messing with streams gets you into a whole jungle of regulations. Even if you have an appropriate waterway, I wouldn't count on being able to implement that form of green energy. As a matter of fact, it seams like hydro dams are getting ripped out and none are getting built because of the ecological impact.
That would be because of too many tree hugging hippies. Next thing you know, they are going to want to tear down Hoover dam, but build more coal burning plants.
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Old 10-18-2011, 12:26 AM   #25
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I'd like to power a few things and then when power does go out, I still have heat and cold food. Can always heat water on the stove if the 90-gallon tank gets used up.

Thank you again.
I think you shouldn't worry about those things for a temporary power outage. I was caught in the big 3 day ring around lake Erie power outage a few years back. I borrowed a generator on day 2, ran a couple of gallons through it, and was good. I think the chest freezer would have been fine without that. I did use a car battery to a small inverter to keep my tropical fish alive though.

Best bet would be to get a generator for your time of need if you think it will last long enough to were you need the furnace or have to run the fridge and freezer.
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Old 10-18-2011, 07:40 PM   #26
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Inverter wiring to panel


So if you plug a battery charger into your inverter, you are taking power from the battery, converting it to AC (plus efficiency losses), then converting it BACK into DC (via the charger, with associated efficiency losses), to charge the battery bank...

That's an interesting attempt at a type of perpetual power device, but it makes NO sense at best. You need to charge the batteries from an outside source, ie utility, solar, wind, hydro, nuclear, geothermal, genset, etc.

If you are charging from the utility, then the system is best used as a power outage backup. Otherwise, with all the efficiency losses in converting and storing the electricity, you'll actually use about 20% MORE electricity than just plugging into the utility. Inverters and battery banks aren't free power...it has to come from somewhere.
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Old 10-18-2011, 07:42 PM   #27
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Quote:
Originally Posted by speedymonk
Batteries would be charged off an Ac outlet on the inverter to a charger.
....was what I'm referring to in my last post.

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