ENG-1971 — Page 221

PUBLIC WORKS AND UTILITIES

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of 120 MW, but three 125 MW units have been ordered and are due to be commissioned during 1972, 1973 and 1975 to keep pace with expanding consumer demands.

The Cheung Chau Electric Company, which was founded in 1913 as a community project and is now operated by commercial in- terests, is also planning the installation of an additional 1 MW unit, probably in 1973.

Gas

The Hong Kong and China Gas Co Ltd supplies Towngas to Hong Kong Island, Kowloon and the New Territories. The supply is available throughout the urban areas, including Repulse Bay on the Island and the industrial towns of Kwun Tong, Kwai Chung and Tsuen Wan. Liquefied petroleum gas is offered to customers outside the reach of the town gas supply.

Towngas production is centred at Ma Tau Kok, Kowloon, and the Island is supplied by two submarine gas mains across the harbour. The total installed production capacity of the station is approximately 14 million cubic feet per day. Tsuen Wan is supplied by an in- dependent station with a capacity of 900,000 cubic feet per day.

Gas is sold on a thermal basis (one therm=100,000 British thermal units). The calorific value of Towngas in the urban area is 455 British thermal units per cubic foot and in the Tsuen Wan area it is 650 BTU per cubic foot.

The total quantity of gas sold in 1971 was 9.8 million therms compared with 9.1 million in 1970, an increase of eight per cent.

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