40' PRESIDENTIAL ADDRESS SECTION A. 



of generating about 5,000 E.H.P. — the basis of comparison being 

 a coal of 12,500 British thermal units at los. per ton delivered at 

 the power station. The cost of generation with a 5,000 E.H.P. 

 hydro-electric plant wnll be about 0.15 pence at the station with 

 a properly designed plant, if the load factor is fairly high and 

 the demand continuous throughout the 24 hours, and the total 

 cost, including interest and redemption, may be taken at about 

 o.25d. per unit. 



In Canada it is estimated that 90 per cent, of the total power 

 generated is obtained from the rivers of the country. The average 

 actual cost of the hydro-electric stations throughout Canada is 

 about £38 per installed E.H.P., including power station plant, 

 buildings, lands, transmission, and distribution systems, while 

 the average number of employees (white) employed on the under- 

 takings is 4.8 per 1,000 H.P. installed, and the wages paid 

 amount to about £1 per annum per H.P. installed. 



The cost of erecting a 5,000 E.H.P. steam gener<Ming station 

 in South Africa, including land, buildings, plant, etc., at la 

 central station may be taken at about £42 per horse power. 

 The cost of transmission and distribution lines, transformers, 

 sub-stations, etc., must be added to the above, and this will, of 

 course, vary according to the length of the line, etc. The cost 

 of generation at such a station in South Africa may be taken 

 at about o.2d. per unit, if a 12,000 B.T.U. coal is supplied at 

 9s. per ton. If interest and redemption is included, the cost 

 may be taken at about o.3od. per unit. 



The cost of a hydro-electric plant in a selected position on 

 the Vaal River would probablv be about £35. per E.H.P., and the 

 total cost of generation, including interest and redemption, o.25d. 

 Taking a basis of o.25d. per unit, the cost would be £6 8s. per 

 horse power year for continuous running. 



The cost of hiring power per H.P. from large generating 

 -Stations in the United States of America may be taken at from 

 £2 los. to £6 per annum, according to the nature of the load. 



In Norway the co!>t per H.P. year is about £3 los. for 

 continuous running throughout the year. 



