D.—l

102

Table F. —Mangahao Hydro Electric-power System.—Results of Operations.

1927. 1928. £ £ Capital outlay .. .. .. .. .. .. .. 2,242,871 2,373,921 Costs— Working-costs* .. .. .. .. .. .. 26,921 33,914 Interest .. .. .. .. .. .. .. 98,881 100,441 Depreciation j .. .. .. .. .. .. .. 32,997 38,301 Total costs .. .. .. .. .. .. 158,799 175,656 Revenue .. .. .. .. .. .. .. .. 101,897 44,112t Loss .. .. .. .. .. .. .. .. 56,902 131,544 Depreciation ;JTundJ.. .. .. .. .. .. .. 32,997 35,301 Maximumjload (kilowatts) — Power-houso .. .. .. .. .. .. .. 18,100 20,040 Khandallah Substation .. .. .. .. .. .. 12,720 . 12,120 Wellington City .. .. .. .. .. .. 11,078 10,496 Hutt Valley Electric-power Board .. .. .. .. 1,700 2,120 Wellington Meat Export Co. .. .. .. .. .. :S97-(i 455 Railway Department .. .. .. .. .. .. 360 480 Horowhenua Electric-power Board .. .. .. .. 1,688 1,968 Manawatu-Oroua Electric-power Board .. .. .. .. 1,632 2,094 Dannevirke Electric-power Board .. .. .. .. 381 420 Tararua Electric-power Board .. .. .. .. .. 382 442 Wairarapa Electric-power Board .. .. .. .. .. 820 930 Wanganui-Rangitikei Electrie-powor Board .. .. .. 1,848 2,016 Bay Electric-power Board .. .. .. 300 440 Units output — Generated — Power-house total .. .. .. .. .. .. 72,133,890 74,726,880 Purchased— Wellington City Council .. .. .. .. .. 5,720,463 22,539,685 Wanganui-Rangitikei Electric-power Board .. .. .. 549,620 2,307,964 Palmerston North Borough Council .. .. .. .. 143,911 1,176,556 Napier Borough Council .. .. .. .. .. .. ■ 1,267,120 Hastings Borough Council .. .. .. .. .. .. 841,095 Other sources .. .. .. .. .. .. .. 1,118,809 Total units generated and purchased .. .. .. 78,547,884 103,968,109 Units sold — Wellington City Council .. .. .. .. .. 36,140,668 40,024,449 Wellington Meat Export Co. .. .. .. .. .. 1,292,500 1,574,550 Horowhenua Electric-power Board .. .. .. .. 5,986,110 7,090,301 Hutt Valley Electric-power Board .. .. .. .. 6,334,156 9,193,558 Wairarapa Electric-power Board .. .. .. .. .. 1,676,550 2,246,344 Tararua Electric-power Board .. .. .. .. .. 1,556,650 2,105,967 Dannevirke Electric-power Board .. .. .. .. 1,337,202 1,612,296 Central Hawke's Bay Electric-power Board .. .. .. 1,188,238 1,945,807 Hawke's Bay Electric-power Board .. .. .. .. .. 6,035,193 Manawatu-Oroua Electric-power Board .. .. .. .. 9,068,259 11,442,722 Wanganui-Rangitikei Electric-power Board .. .. .. 6,959,957 11,865,489 New Zealand Railways .. .. .. .. .. .. 704,456 965,175 Headworks and village .. .. .. .. .. .. 1,346,880 1,309,635 Testing, &c. (includes supply to substations) .. .. .. 250,391 375,086 Total units sold .. .. .. .. 73,842,017 97,786,572 Losses — Total losses (units) .. .. .. .. .. .. 4,705,867 6,181,537 Percentage .. .. .. .. .. .. .. 6-0 5-9 Load-factor (per cent.) — Power-house (annual) .. .. .. .. .. .. 48'3 42-4{ Power-house (average weekly) .. .. .. .. .. 55-3 53'1 Working-costs (less power purchased)— Per kilowatt (power-house maximum) .. .. .. .. £1-49 £1-7 Per unit generated .. .. .. .. .. .. 0'0895d. 0-109d. Per unit sold .. .. .. .. .. .. .. 0-087d. 0 084d. Capital charges— Per kilowatt (power-house annual maximum) .. .. .. £7-28 £7-066 Per unit generated .. .. .. .. .. .. 0-44d. 0-46d. Per unit sold .. .. .. ' .. .. .. .. 0-43d. 0-35d. Total costs — Per kilowatt (power-house annual maximum) .. .. .. £8-62 £8-76 Per unit generated .. .. .. .. .. .. 0-53d. 0-56d. Per unit sold .. .. .. .. .. .. .. 0-517d. 0-43d. Revenue — Per kilowatt (power-house annual maximum) .. .. .. £5-64 £2-2 Per unit generated .. .. .. .. .. .. 0-339d. 0-142d. Per unit sold .. .. .. .. .. .. .. 0-331d. 0108d. • Does not include £111,746 for power purchased, t Gross revenue, £155,857. t On unite generated ; 69-1 per cent, on total units.