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My Home Solar Updated 4

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Published on Nov 4, 2010

I have added a 3rd panel of 195watts to the existing two 125watts, for a total solar panel array of 445watts or about 21apms DC. I have my 12v aaray coming down into a combiner box that I made. From there the power goes to the 30amp charge controller or/and the 250w grid tied inverter. As the batteries get fully charged, the power starts to get "damed" back by the charge controller, and more power is diverted to the grid tied inverter. This is my "load dump". This way I can still use the power in the house, and not waste it. I have added more batteries to my battery bank, fora total of 1,000 amp hrs. of DC capacity. Or, after inverting to 120v, 100 amp hrs of AC capacity. My 445w panels produce about 1.3kW per day average. Assuming a 20% loss of power from watt production to invertinf the power, this gives me about 1kW per day. This is sufficient to run my basic essentials every day, in case of an extended power outage. Basic items are my chest freeezer, refrigerator, box fan, DSL, Modem and laptop. I will be adding more panels to my array in the future, as I would like to be able to add more items to my "Basics" list.

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