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Caption: Dedication - Transportation Building Dedication Addresses
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attractive will be the proposition to purchase power, especially if the requirements be such that they can be made to fill the "valleys" of the station load diagram, and s0 obtain a correspondingly lower charge per kilowatt-hour. In existing plants where the original charges must still be carried, it will be more difficult to demonstrate a saving, but often the engine attendance, handling of coal and ashes, and the operation of boilers will constitute a cost great enough to make the purchase of power attractive, although eaoh case must be considered on its own merits and the enthusiasm of electrical engineers must not be allowed to get the better of good judgment, which, if it did, would almost invariably result in economic failure • In these cases, Knowledge is more than Power. Then we sometimes have a condition where waste gases can be utilized, as from ooke ovens and blast furnaces, in which case we must decide between gas engines and gas fired boilers, or possibly coal fired boilers. The high fixed charges attendant upon an installation of gas engines sometimes throw the economic balance in favor of the steam boiler and engine, but here also each case must be consider- ed on its individual merits and surroundings. The rapidly advancing price of oil deprives that material of its rights to recognition as a power producing fuel, except in oertain localities, although for some metallurgical operations it is invaluable. The fluctuation in price is as great a detriment to its use as a fuel as the
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