Some utilities pay generous rates for solar power, some pay about the same as it costs to buy, and some pay little or nothing. If the utility is not paying an attractive rate, it may be better to use up solar energy rather than exporting. Many loads can't be time-shifted, but some can, and examples ...By: James Moxham
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from Instructables: exploring - technology - robots http://ift.tt/1yp7M59
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