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Show 1 Electric Pover the Cheapest. Fuel of al descriptions Is oxponslvo In California, says tho Eluctrlcal Ito-view, Ito-view, and tho mining opsrntors Iiovh found tho uso of electric power uot only better thnn steam or water power but ovon less expensive. A enso Is mentioned where ono company saved $160 per month using electric power nt $0.50 per horso power month, ns compared com-pared with wnter under n head of 1S5 feet, at 20 cents per minors' inch. In another caso a steam plant was ro-placed ro-placed by motors nud tho cost of driving tho blower in thin way war one-halt of what It had boon when using steam. It has oven been found economical to uso motor3 to drlvo the nlr compressots when air Is used fo: operating tools throughout tho mine. |