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� � <br /> expensive extension.The cost of • You would like to gain energy <br /> n,nning a power line to a remote independence from the utility <br /> site to mnnect with the utility grid . You would like to generate clean <br /> can be prohibitive,ranging from power. <br /> $15,000 to more than$50,000 per <br /> mffe,depending on tenain. <br /> Livtng Off-Grid:A Success Story <br /> This home,built near Ward,Colorado(at an eleva6on of 9000 feet),has been <br /> off-grid since it was built in 1972.When the house was built,the nearest util- <br /> ity was over a mile away,and it would have mst between$60K$70K(based <br /> on 1985 rates)to mnnect to the utility l,ines.The owners deaded to instail a <br /> hybrid electric system powered by wind, <br /> � solaz,and a generator for a rnst of about <br /> � , $19,700.The parts of the system include: <br /> t Bergey 1.5-kW wind iurbine,l0-ft(3-m) <br /> diameter rotor,70-ft.(21-m)tower <br /> Solarex PV panels,480 wa#ts <br /> 24 DC battery bank,375 ampere-hours <br /> Trace sine wave inverter,120 AC,1 phase, <br /> 4kW <br /> Onan propane-fueled generator,6.5 kW <br /> , .-.�:v rated(3 kW derated for aititude) <br /> Electric appliances in the home include <br /> television,stereo,two mmpu#ers,toaster, <br /> blender,vacuum cieaner,and hair dryer. <br /> The lazgest electric loads are created by <br /> a well pump and washing machine.The <br /> generator runs about 20%of the time,paz- <br /> ticulazly when the washing machine <br /> is in use.Propane serves the other major <br /> �loads in the home:range,refrigerator,hot <br /> water,and space heat.Soiar mllectors on <br /> �#he roof provide pre-heating for the hot <br /> �water. <br /> � <br />