| http://www.w3.org/ns/prov#value | - He said other than doing monthly maintenance on the 28 batteries and moving his solar panels to face the sun at the change of each season, his system takes care of itself.He estimates that in energy cost alone he saves around $20,000 every 10 years, including the price of his panels and maintenance.Living off the land has been great for him, he continued, and even during the harshest times he has
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