168 SECTIONAL ADDRESSES. 



to reacli a total of 32,624,000 persons (Electric Power Survey made 

 by Power Surveying Committee, National Electric Light Association, 

 December 1, 1925). 



The consumption in 1950 is estimated at 1,651 units per capita, or 

 1,924 units generated. 



The subdivision is interesting, and is as follows : — 



Railways . . 



Industrial power 



Agricultural power and drainage 



Domestic and business services 



Public services, street lighting, sewage pumps, 



&c. 

 Other uses 



Total . . 



While no exact parallel can be drawn between the consumption in 

 this country and the U.S.A. — because the conditions are so diiJereut — 

 it is nevertheless a modest estimate which only anticipates an average 

 consumption in this country of 940 units per capita, as against 1,651 units 

 estimated by a Committee of skilled investigators as the future require- 

 ments in the Central States of the great Republic. 



Whether this estimate for Great Britain be exaggerated or not, it is 

 certain that provision for a largely increased output will have to be made. 



The sources of power available in this country are mainly coal and 

 coke, but there are also inland and tidal water-power to a small extent, 

 and some sources of waste heat. It is certain, however, that the bulk of 

 this future electrical output must be produced in fuel-fired stations. 



An investigation was made into the water-power resources of Great 

 Britain by the Water Power Resources Committee appointed by the Board 

 of Trade in 1918, whose final report was issued in 1921. Many watersheds 

 were carefully examined by eminent Civil Engineers, and these indicated 

 a capacity of some 275,000 kw. working continuously, being made up of 

 195,000 kw. in Scotland, 60,000 kw. in North and Mid Wales, and 20,000 kw. 

 in England. Of this total it was then considered that 210,000 kw. could 

 be economically developed. Since this report was issued. Parliamentary 

 powers have already been granted for the Lochaber scheme (54,000 kw.), 

 now in course of construction, the Grampians scheme (estimated to 

 develop 80,000 kw.), and for small schemes of 7,000 kw. in Ayrshire at 

 Loch Doon, and 12,000 kw. at the Falls of Clyde, now under construction 

 by the Lanarkshire Hydro-Electric Power Company. 



This Committee was careful to note that the figures quoted above 

 relate only ' to certain specific water-power schemes, and that they by no 

 means represent the total water-power resources of Great Britain.' Having 

 regard to the average rainfall in North Wales and in Northern Scotland 

 and the contours of those districts, it is almost certain that other economic 

 sources of water-power would be revealed by a more extended survey. 

 For the present purposes, and including the important existing works of 

 the British Aluminium Company at Kinlochleven (23,000 kw. with an 

 annual output of 173,(X)0,000 units) and those of the North Wales 



