10-30-2008, 12:12 AM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,892
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solar power whether active or passive costs big bucks. the storage batteries are not just automotive batteries but deep cycle EXIDE power house sized batteries. for 120 volts dc you'd need 60 2 volt jars. these are lead acid cells. each one weighs about 60 pounds including the plates and acid. active dc feeds directly into the grid through an inverter [needed to change the dc to ac] passive uses storage batteries through an inverter for the load and the conection to the grid.
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