D.—l

85

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

Seventh Year, Eighth Year. Ninth Year, Tenth Year, March, 1922. March, 1923. March, 1924. March, 1925. £ £ £ £ Capital outlay.. .. .. •• •• 671,608 848,033 892,801 1,008,491 Costs — : Working costs .. .. .. .. 25,911 19,271 20,777 23,270 Interest .. .. .. •• 20,981 35,275 44,444 47,780 Depreciation 8,424 9,307 12,584 15,679 Total costs .. .. .. .. 55,316 63,853 77,805 86,729 Accumulated Depreciation Fund .. .. 54,537 61,275 72,594 88,631 Accumulated deficiency 29,175 23,876 23,172 17,738 Revenue — City Council .. .. .. .. 18,890 21,641 26,055 28,925 Tramways .. .. .. .. 7,957 8,909 9,189 9,477 Wholesale consumers .. .. . 26,019 34,344 39,280 49,822 Retail consumers .. .. .. .. 1,880 2,118 2,289 1,880 Miscellaneous 2,068 2,141 1,695 2,059 Total revenue .. .. .. 56,814 69,153 78,508 92,163 Maximum load (kilowatts) — — Power-liouse .. .. ., .. 7,600 9,390 10,800 13,180 Substations .. ». . .. 6,720 8,420 9,490 11,190 City Council .. .. .. .. 3,750 4,290 5,344 6,216 Tramways .. .. .. .. 2,120 2,480 2,740 2,760 Average load (kilowatts) — Power-house .. .. .. . ■ 4,453 5,024 5,722 6,820 Substations . . 3,875 4,528 5,158 5,680 City Council .. .. .. .. 1,760 2,006 2,438 2,930 Tramways .. .. .. .. 702 842 870 897 Units output — Power-house .. .. .. .. 38,419,102 44,008,106 50,614,955 59,528,216 Fed to village tunnel and intake .. .. 427,921 556,446 1,837,069 1,865,344 Feci to transmission-lines .. .. .. 37,929,750 43,451,660 48,777,886 56,935,840 Substations (various) .. .. .. 33,947,100 39,665,420 45,778,007 53,261,142 Units sold— City Council .. .. .. .. 15,419,100 17,575,610 21,664,830 25,616,445 Tramways .. .. .. . . 6,499,258 7,360.035 7,623,900 7,851,060 Wholesale consumers and local bodies .. 10,746,697 12,449,239 14,198,034 17,420,138 Retail consumers .. .. .. .. 278,879 76,743 305,608 399,390 Total units sold .. .. .. 32,943,934 37,561,627 43,792,372 51,287,033 Losses — : — Transmission-line losses .. .. .. 3,982,650 3,786,240 2,999,879 3,676,518 Percentage .. .. .. • . 10'5 8-7 6-2 6'4 Distribution losses .. .. .. 1,003,166 1,977,256 1,985,635 1,973,199 Percentage .. .. •. •. 3-0 5-2 4'3 3-7 Average load-factor (per cent.) — — Power-house .. .. . . .. 62-9 53-5 53-0 51-8 Substations .. .. . . .. 62 - 0 53-6 54-3 50-8 City Council .. .. .. .. 53-6 47-0 45-6 47-1 W orking-costs— —; Per kilowatt (power-house maximum) .. £3-40 £2-05 £1-92 £1-76 Per kilowatt (substations maximum) . . .. £3-85 £2-29 £2-19 £2-08 Per unit generated., .. .. .. 0-161d. 0'106d. 0102d. 04)94d. Per unit sold .. .. .. .. 0-188d. 0-123d. 0-113d. 0-109d. Capital charges — — Per kilowatt (power-house maximum) .. £3-87 £4-74 £5-28 £3'63 Per kilowatt (substations maximum).. .. £4'37 £5'29 £6-00 £4'27 Per unit generated,. .. .. .. 0T84d. 0-246d. 0-280d. 0- 193d. Per unit sold .. .. . . .. 0-214d. 0-284d. 0-313d. 0-224d, To tal cost — Per kilowatt (power-house maximum) . . £7-27 £6'80 £7'20 £6'58 Per kilowatt (substations maximum) .. .. £8-23 £7-58 £8-20 £7-75 Per unit generated .. .. .. .. 0*350d. 0-352d. 0*382d. 0-349d. Per unit sold . . .. .. .. 0-403d. 0-408d. 0-426d. 0-406d. Revenue— Per kilowatt (power-house maximum) .. £7-47 £7-36 £7-27 £6-99 Per kilowatt (substations maximum) .. .. £8'45 £8-21 £8-27 £8-23 Per unit generated .. .. .. .. 0-354d. 0-382d. 0-386d. 0-372d. Per unit sold .. .. .. 0-414d. 0-441d. 0-430d. 0-431d. Per unit sold (city) .. .. .. 0-295d. 0-295d. 0-288d. 0-271d. Per unit sold (trams) .. .. .. 0'293d. 0-290d. 0'289d. 0 - 290d. Per unit sold (wholesale consumers) .. .. 0-585d. 0-662d. 0-664d. 0*686d. Per unit sold (retail consumers) .. .. l-01d. 2-88d. l-80d. l-13d.