ENG-1970 — Page 208

PUBLIC WORKS AND UTILITIES

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390 MW is owned by China Light and 240 MW by Peninsula Electric. The power station at Tsing Yi, owned by Peninsula Electric, has two 120 MW units operating. Four similar 120 MW units are due to be installed at varying intervals before the middle of 1973, followed by two 200 MW units. Peninsula Electric's generating stations are constructed and operated by China Light. The electricity supply in Kowloon and the New Territories is 50 cycle alternating current, normally 200 volts single-phase or 346 volts three-phase. For bulk consumers, supply is available at 11 kv and, in some locations, at 6.6 kv.

At September 30, 1970, there were 531,169 consumers, six per cent more than a year earlier, and total output was up 13 per cent to 3,614 million kwh. Under the new tariff system adopted in 1969, a maximum demand tariff was made available to all bulk users from January, 1970.

The Cheung Chau Electric Company Limited supplies electricity to Cheung Chau Island which contains some small industries and a population of fisherfolk. It was founded in 1913 as a community project and is now operated by commercial interests. It supplies power on a 50-cycle, three-phase, four-wire system of 200/346 volts for domestic, commercial and industrial purposes.

The Hong Kong and China Gas Company Limited supplies Towngas to Hong Kong Island, Kowloon and the New Territories. 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, while in the Tsuen Wan area the calorific value of the gas is 650 BTU per cubic foot. The total quantity of gas sold in 1970 was approximately 9.1 mil- lion therms compared with 7.9 million therms in 1969, an increase of 14.4 per cent.