ENG-1975 — Page 183

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PUBLIC WORKS AND UTILITIES

Generation of electricity for Kowloon, the New Territories and several outlying islands is carried out partly by the China Light and Power Company and partly by Peninsula Electric Power Company-an enterprise financed 60 per cent by Esso and 40 per cent by China Light. It owns power stations on Tsing Yi Island (1,162 MW) and at Hok Un (240 MW). The operation of these plants is in the hands of China Light, which also has its own stations at Hok Un (410 MW) and a number of diesel sets (6 MW). Additional capacity of 400 MW is due to be installed on Tsing Yi by

1977.

Hongkong Electric has generating stations at North Point (271 MW) and Ap Lei Chau (506 MW). Therefore, including Cheung Chau's 5 MW, there is a combined capacity of 2,600 MW.

Transmission is carried out at 132 kV and 66 kV, while distribution is effected mainly at 33 kV, 11 kV and 346 volts. The supply is 50 hertz alternating current, normally at 200 volts single-phase or 346 volts three-phase. For bulk consumers, supply is available at 33 kV and 11 kV. Safety aspects are covered by an Electricity Supply Ordinance.

Main electricity statistics for 1975, as well as electricity sales figures for the years 1972-5, are shown in Appendix 34.

Gas

The Hong Kong and China Gas Company supplies towngas to Hong Kong Island, Kowloon and the New Territories. The supply is available throughout the urban areas, including Aberdeen, Repulse Bay and Stanley on Hong Kong Island, and the industrial towns of Kwun Tong, Kwai Chung and Tsuen Wan. Work is now in hand to provide Sha Tin with a towngas supply in 1976-7. Towngas production is centred at Ma Tau Kok in Kowloon, and Hong Kong Island is supplied by two sub- marine gas mains across the harbour. The total installed production capacity of the station is about 28 million cubic feet a day.

Gas is sold on a thermal basis (one therm=100,000 British thermal units). The calorific value of towngas is 455 BTUs per cubic foot. The total quantity of gas sold in 1975 was 15.25 million therms, compared with 14 million in 1974.