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Author Topic: Off-grid battery/solar systems. Who is running one?  (Read 5043 times)

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Offline grweldon

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Re: Off-grid battery/solar systems. Who is running one?
« Reply #20 on: December 10, 2015, 04:27:02 pm »
After many years of just reading the forums i am finally writing something.  I am off the grid in Western Maine. 12 panels, 20 batteries and a Winco propane generator to charge the batteries when needed...

It would be nice to know the rated wattage output of the panels.  I'm assuming 3KW total? (250 watt panels)...
Timberking 1400, Ford 3910 Tractor, John Deere 350B Crawler/Loader

Offline maple flats

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Re: Off-grid battery/solar systems. Who is running one?
« Reply #21 on: June 17, 2017, 05:41:48 pm »
My battery bank referenced 2 yrs. ago this month is still going strong but they are only emergency back up heat for the RO now, because I installed a wall mount propane heater which runs off a bulk tank.
I have now put in a totally off grid solar system at my house (the house is on the grid but the new system is isolated from the grid power). I have 1720 watts in panels, the battery bank is 24V 683 AH, consisting of 4 Rolls 6V 683 AH batteries in series. I have a MorningStar MPPT 60 charge controller, and an Outback 3524 inverter. We use it depending on the battery bank voltage. In the summer we run the washing machine and the vacuum all the time, in the winter they are only run on solar if we have good sun. The rest are run all the time on solar (2 sump pumps, light in the duck's coup, and the TV and dish box most of the time. They are on a power strip  that is plugged into solar when batteries are up good and into grid if voltage is down below 25V. This system was put in last December and finished in Jan. 2017. We ended up needing a rapid shut down set-up to comply with the newer code to protect first responders in case of an emergency.
logging small time for years but just learning how,  2012 36 HP Mahindra tractor, 3point log arch, 8000# class excavator, lifts 2500# and sets logs on mill precisely where needed,  Peterson ATS upgraded to WPF mill, maple syrup a hobby that consumes my time. looking to learn blacksmithing.

Offline maple flats

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    • Dave and Joan's sugarhouse web site
Re: Off-grid battery/solar systems. Who is running one?
« Reply #22 on: October 18, 2017, 07:24:21 pm »
The new totally off grid system is doing well. Lately we have been able to run the clothes washer on solar too every time, regardless of what the weather has been. The lowest the battery meter has shown is 25.1V which is real good. So, we run 2 sump pumps, 1 50" TV, the satellite box, the DVR 2 dehydrators (we've been drying apples), the washing machine, the vacuum every day and an outside fountain pump along with a lite in the duck house. (we get 2 eggs almost every day from 2 female ducks as long as they get 14 hrs of light, either natural or from a bulb).
I declare this little 6 panel 1710 rated watt system a success. As the days get shorter my guess is that we will need to do the wash and vacuuming only on days with decent sun to be able to plug into the solar power.
Everything else runs off the grid power.
logging small time for years but just learning how,  2012 36 HP Mahindra tractor, 3point log arch, 8000# class excavator, lifts 2500# and sets logs on mill precisely where needed,  Peterson ATS upgraded to WPF mill, maple syrup a hobby that consumes my time. looking to learn blacksmithing.