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RE: Off grid solutions for keeping food cold, without breaking the (battery) bank!
Yes, I have located an air conditioner that draws 900 watts. I will need two, but I have enough solar panel wattage for both, and when the AC turns off, the battery charge resumes (will be charging some all the time). once the wind is up, it will be charging well all the time.
This is also why I am adding all the insulation.... :)
exactly. what do you use for the wind, a big windmill?
There is a company up in Mo. that make wind generators. They have one rated at 1700 watts for under $500 on ebay; that in our average wind velocity here will generate about 500 watts at 24 volts. It is also a 3 phase AC system, so I can use smaller wire to the rectifier, which I can then place close to the batteries. Less loss that way, better efficiency. 12,000 extra watt hours a day from wind, will help keep my batteries charged!
:)On stormy days, when the solar panels will not make much, it will do a lot better (in the 1000 watt area) to relieve some of the battery draw. It also generates at night. When I add the wind generator, I will need to make a dump load to avoid overcharging. :)
wow that's super cool. so you are going to have more than enough juice. what is the avg wind mph there?
Nine MPH, but the wind generators never produce what people expect. They don't understand the rating is at tornado wind speeds. But they are still useful.
:)I would like to sell about half of what I generate back to the utilities.