22 WATER POWER OF HALIFAX COUNTY, NOVA SCOTIA: 



towns, Wolfville and Kentville, while the latent energy of the 

 tides of the Bay of ITundy still await the master haind of the 

 engineer, the promoter, and the capitalist. 



With the rapid growth of the demand for power, and the 

 necessity for obtaining that power as cheaply as possible, we can 

 no longer afford to ignore the possibilities of the minor hydrau- 

 lic powers, many of which are yet undeveloped, while others now 

 in use are not developed to their full capacitv. 



We have no mountain streams with great heads in Halifax 

 County, but there are many streams which contain possibilities 

 which would justify investigation at least. 



At twenty feet head it takes a wheel a couple of feet in 

 diameter and a flow of about 3,500 cubic feet of water -oer min- 

 ute to give 100 horse-power. At eighty feet head a 10-inch 

 wheel will do the same work on one-quarter of the quantity of 

 water, while with a very high head a mere brook may suffice to 

 give a power that may be worth at least developing for local use. 



Minor powers are not uncommon in ainy hillv district, but 

 the small flow diverts attention from them. Yet this very class 

 may have possibilities in the way of storage of water that would 

 make them most attractive. In some cases where a -number of 

 square miles of watershed are available, it may be possible by 

 the construction of dams to form storage lakes or increase the 

 capacity of existing natural reservoirs, and by this means create 

 a useful power where only a moderate stream flowed before. 



There is, of course, a limit to the minimum quantity of con- 

 tinuous water power that is worth considering, whether for local 

 use or in connection with electric transmission. The governing 

 features of the problem are the general cost of development and 

 equipment, the cost of transmission, alnd the cost of operation. 



In hydraulic work the cost of conduits from the dam to 

 the power house is generally the controlling item, and this is 

 again determined by the distance necessary to be covered and 

 the available flow. 



