710 ECONOMICAL ASPECTS 



there to be led through an open concrete-lined canal, 2600 feet 

 long and with a cross-sectional area of 525 square feet, to a fore- 

 bay. The forebay is divided in three sections provided with 

 gates and trash racks, and there will be three penstocks, 10 feet 

 6 inches in diameter and 265 feet long. 



The power-house equipment comprises three 3500-H.P. tur- 

 bines with governors, driving three 2000 Kw. generators with 

 direct-connected exciters. Provision is also made for trans- 

 formers, switching equipment and necessary station auxiliaries, 

 such as crane, etc. 



ESTIMATED COST OF PLANT 



Main dam and headworks $313,660 



Canal, including lining 62,000 



Forebay 23,000 



Penstocks 35,750 



Power-house 61,000 



Machinery : 



Turbines and governors 42,000 



Generators and exciters 52,000 



Transformers and switching apparatus 36,000 



Total $625,410 



Engineering and contingencies $94,690 



$720,100 

 Interest during construction 28,000 



Grand total $748,100 



The total capital cost of the plant, including the proportion of 

 the cost of creation of storage, also the proportion of the cost of a 

 duplicate transmission line, and proportion of a transformer sta- 

 tion and equipment is: 



Capital cost of plant $748,100.00 



Transmission lines and station equipment 64,700 . 00 



Storage 103,000.00 



Total capital cost $915,800.00 



Annual charges: 



1. Interest on capital invested assuming financing is done 



on bonds at 6 per cent sold at par $54,900 . 00 



2. Sinking fund to retire bonds in thirty years reinvested 



at 4 per cent, say If per cent 16,050 . 00 



