ENG-1969 — Page 239

PUBLIC WORKS AND UTILITIES

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station at Hok Yuen, Kowloon Bay, has a capacity of 662 MW, of which 422 MW is owned by China Light and 240 MW by Peninsula Electric.

The new power station at Tsing Yi, owned by Peninsula Electric, was opened by the Governor, Sir David Trench, on April 22, 1969 with the commissioning of Hong Kong's first 120 MW set. Five similar 120 MW units are due to be installed at varying intervals before the middle of 1973. 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, 1969 there were 499,459 consumers, seven per cent more than a year earlier and total output was up 18 per cent to 3,198 million kWh.

After extensive studies, a new tariff system was adopted in 1969 which replaced the former separate lighting and power tariffs by a single 'General Tariff', while a maximum demand tariff ('Bulk Tariff') was designed which will be available to all bulk users from 1970.

The Hongkong Electric Company supplies power to Hong Kong Island and the neighbouring islands of Ap Lei Chau and Lamma.

Electricity is generated by plants at North Point, which has an installed capacity of 345 MW, and at Ap Lei Chau, which has an installed capacity of 120 MW. Two 125 MW sets are on order for Ap Lei Chau to keep pace with expanding consumer demand.

The transmission system has been reinforced by three 132 kV overhead lines carrying supplies to the west, north and east of Hong Kong Island and 132 kV underground cables have been laid as part of development in the city and built-up districts. Both these lines and cables will operate initially at 66 kV. Secondary distribu- tion voltages are 346 volts, three-phase and 200 volts, single-phase.

Maximum demand on the company's generating plant rose to 274 MW in 1969, an increase of 9.2 per cent over 1968. The number