Journal of electricity, power, and gas . ectionleading to Oakland and San Francisco. ConsideringOakland or San Francisco as the hub of a wheel, thepower lines would appear as the spokes, the plantsbeing located at the ends of the spokes. In somecases lines connect also from one plant to the other, orseveral plants are connected together on the rim of thewheel, bearing out the further resemblance to a wheel,the connecting lines between the plants being thefelloes, or the tire connecting the spokes. On therim of this wheel are also large power consumers madeup of some large mining communities, e
Journal of electricity, power, and gas . ectionleading to Oakland and San Francisco. ConsideringOakland or San Francisco as the hub of a wheel, thepower lines would appear as the spokes, the plantsbeing located at the ends of the spokes. In somecases lines connect also from one plant to the other, orseveral plants are connected together on the rim of thewheel, bearing out the further resemblance to a wheel,the connecting lines between the plants being thefelloes, or the tire connecting the spokes. On therim of this wheel are also large power consumers madeup of some large mining communities, etc., and on thespokes of the wheels are a number of cities, towns,factories, etc.: for example, Sacramento, Stockton,Oroville, Marysville, San Jose, Woodland, and manyothers, also several large cement plants, numerousgold dredgers, large street car systems, innumerablesmall factories, many small pumping plants both forirrigation and drainage, and the numerous consum-ers requiring light for stores, homes, and almost everyconceivable Reclamation and Irrigation by Electricity, The result is, then, that power is transmitted overthe transmission lines to the various points of use,the last of the water power being carried to the hubof the electric wheel, to Oakland and San Francisco. Atthese points large steam plants are provided for powerservice insurance, and to balance up the power sup-ply and demand so that the water power plants may January 3, 1914.] JOURNAL OF ELECTRICITY, POWER AND GAS as nearly as possible deliver their maximum outputat all times. The arc of a circle covered by this largeelectric system is about 350 miles long, and the areacovered is nearly 40,000 square miles, or an area sixtyper cent as large as the state of New York. Theaverage load on this system has grown to over 10,000horsepower. The result of such a system (and shown on theaccompanying map of California) is that the sameservice in electric power is available at the miningcamps in the mountains an
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