D.—l

Table A.—Lake Coleridge Electric-power Supply.—Results of Operation.

Substations maximum: Addington, 12,872 kw. ; Timaru, 1,133 kw.; Ashburton, 1,040 kw. ; Oamaru, 269 kw. : Hororata, 177 kw.; Point, 21 kw.: total, 15,512 kw.

13 —L). 1.

97

noonito nf Ninth Year, I Tenth Year, : Eleventh Year, Tweltli Year, Jiesuits or operation. 1924 j 102B 1920 _ 1027 £ £ £ £ Capital outlay.. .. .. .. .. j 892,801 1,008,491 1,366,951 1,538,569 Costs ! Working-costs .. .. .. .. 20,777 23,270 27,035 30,728 Interest .. . .. .. .. ! 44,444 47,780 50,324 65,094 Depreciation, 2 per cent. .. .. 12,584 15,679 19,350 28,168 Total costs .. .. .. .. 77,805 86,729 96,709 123,990 Accumulated Depreciation Fund .. .. 72,594 88,631 111,526 142,594 Accumulated deficiency .. .. . . 23,172 17,738 Sinking Fund Account .. .. .. .. .. 8,907 35,443 Revenue — ; —t —— — City Council (excludes Woolston) .. .. 26,055 28,925 50,377 64,322 Tramways .. .. .. .. 9,189 9,477 10,122 16,094 Wholesale consumers .. .. •■ ! 39,280 49,822 60,250 67,378 Retail consumers .. .. .. .. 2,289 1,880 264 269 Miscellaneous .. .. .. .. 1,695 2,059 2,342 2,177 Total revenue .. .. .. 78,508 92,163 123,355 150,240 Maximum load (kilowatts) — Power-house .. .. .. .. 10,800 13,180 14,430 16,880 Substations .. .. .. .. 9,490 11,190 13,583 15,512 City Council .. .. .. .. 5,344 6,216 7,244 7,978 Tramways .. .. .. .. 2,740 2,760 2,880 2,860 Average load (kilowatts) — Power-house .. .. .. .. 5,722 6,820 7,916 9,000 Substations .. .. .. .. 5,158 5,680 6,303 8,200 City Council .. .. .. .. " 2,438 2,930 3,357 3,760 Tramways .. .. . . .. 870 897 972 980 Units output— * Power-house .. .. .. .. 50,614,955 59,528,216 68,860,614 78,342,797* Fed to village, tunnel, and intake .. . . 1,837,069 1,865,344 1,664,917 741,462 Fed to transmission-lines .. .. .. ! 48,777,886 56,935,840 65,491,130 76,941,870 Substations (various) .. .. .. j 45,778,007 53,261,142 j 61,167,881 71,791,696 Units distributed— City Council .. .. .. . . 21,664,830 25,61.6,445 1 29,126,211 32,935,247 Tramways .. .. .. .. ] 7,623,900 7,851,060 j 8,511,530 8,583,270 Wholesale consumers and local bodies .. 14,198,034 17,420,138 j 22,988,931 27,829,050 Retail consumers .. .. .. .. 305,608 399,390 41,453 23,699 Substation local consumption .. .. .. .. 284,764 1,516,395 Total units distributed .. .. .. 43,792,372 51,287,033 60,952,889 70,887,661 „ sold .. .. .. .. .. .. 69,371,266 Losses— ; Transmission-line losses .. .. .. 2,999,879 3,676,518 4,323,249 5,150,174 Percentage .. .. . . . . 6-15 6-43 6-270 6-7 Distribution losses.. .. .. .. 1,985,635 1,973,199 1,342,454 1,645,497 Percentage .. .. .. .. 4-3 3-71 2-202 2-2 Average load-factor (per cent.) — Power-house . . . . . . .. 53-0 51-8 54-8 53-4 Substation .. .. .. .. 54-3 50-8 54-0 52-9 City .. .. . . .. . . 45-6 47-1 46-3 47 2 Working-costs— : ■- Per kilowatt (power-house maximum) .. £1-92 £1-76 £1-874 | £1-8204 Per kilowatt (substation maximum) .. .. £2-188 £2-08 £1-99 £1-9809 Per unit generated.. .. .. .. 0-102d. 0-0938d. 0-0942d. '■ 0-09413d. Per unit sold .. .. .. .. 0-113d. 0-1088d. i 0-1064d. j 0-1060d. Capital charges — j Per kilowatt (power-house maximum) .. £5-28 £4-82 i £4-828 £5-525 Per kilowatt (substation maximum) .. .. £6-00 £5-67 £5-129 £6-012 Per unit generated .. .. . . 0-280d. 0-255d. 0-2428d. 0-2856d. Per unit sold .. .. .. | 0-313d. 0-297d. 0-2743d. 0-3225d. Total cost — Per kilowatt (power-house maximum) .. £7-20 £6-58 £6-702 £7-3454 Per kilowatt (substation maximum) .. .. £8-198 £7-75 £7-119 £7-9929 Per unit generated.. .. .. .. 0-3821d. 0-349d. 0-3371d. 0-3798d. Per unit sold .. .. .. . . 0-4264d. 0-4059d. 0-3807d. 0-4285d. Revenue (total revenue) — Per kilowatt (power-house maximum) .. £7-27 £6-992 £8-548 £8-9005 Per kilowatt (substation maximum) .. .. £8-27 £8-23 £9-081 £9-6854 Per unit generated .. .. .. .. 0-386d. 0-3715d. 0-43d. 0-4603d. Per unit sold .. .. .. .. 0-4302d. 0-4312d. 0-4857d. 0-52d. Per unit sold (city) .. .. .. 0-288d. 0-27 Id. 0-4150d. 0-4687d. Per unit sold (trams) .. .. .. 0-289d. 0-2897d. 0-2854d. 0-4500d. Per unit sold (wholesale consumers) .. .. 0-664d. 0-6864d. 0-629d. 0-5810d. Per unit sold (retail consumers) .. .. l-80d. l-13d. l-528d. 2-724d. * Plus 446,300 units purchased.