PUBLIC WORKS AND UTILITIES
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urban areas, including Aberdeen, Repulse Bay and Stanley on Hong Kong Island, and the industrial towns of Kwun Tong, Kwai Chung and Tsuen Wan on the main- land. Work is now in hand to provide Sha Tin, Tsing Yi Island and Tuen Mun with a towngas supply in 1977, and the company is also planning to extend its service to other towns in the New Territories. Towngas production is centred at Ma Tau Kok in Kowloon, and Hong Kong Island is supplied by two submarine gas mains across the harbour. The total installed 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 1976 was 17.9 million therms, compared with 15.2 million in 1975.
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