TIDAL POWER TURNBULL 



545 



for $132 per horsepower (this is an average figure for seven American 

 developments) — at the present time the wholesale price of steam 

 coal at St. John, New Brunswick, is $8.68 per long ton, and it would 

 therefore now be a paying proposition to develop a water power in 

 this part of the world at the rate of $255 per developed horse power, 

 as shown in Figure 9. 



According to my estimate of cost above, the initial development at 

 Hopewell should be done for about $155 per horsepower, and the 

 final development for about $100 per horsepower; and while the 

 borings to be made this summer may determine the rock bottom at a 



Fio. 9 



somewhat lower level than that assumed for my estimate, neverthe- 

 less the Hopewell plant should be a commercial one, even if the cost 

 of the dams works out more than double my estimate. The other 

 items of the estimates can be and have been taken direct from the 

 data on standard fresh-water developments, and should therefore 

 be approximately right, as given above. 



If the Maritime Provinces were blessed with great fresh-water 

 powers, such as exist in Quebec and Ontario, the time might hardly 

 be ripe for the development of this tidal plant, but, to quote from the 

 Commission of Conservation's book (1911), it says, in speaking of 

 New Brunswick, " The larger rivers for the most part are long and 

 their fall is gradual;" and again, "There are comparatively few 



