An interconnection through submarine cables between the companies' systems allows maximum utilisation of generating capacity and ensures a more reliable supply to all users.
Two new power stations now being built will house generators that will be fired primarily by imported coal.
Hong Kong Island
The Hong Kong Electric Company Ltd. which has a generating capacity of 1,056 megawatts, supplies electricity to domestic, commercial and light industrial consumers at 200 volts single-phase, or at 346 volts three-phase, four wire, 50 hertz alternating current. Supplies at 11 KV or above are available to bulk consumers. For tariff rates please see Table 19.
Kowloon and the New Territories
The China Light and Power Co. Ltd., which has a generating capacity of 2,214 megawatts, provides main transmission at 132, 66 and 33 KV. Local distribution is at 346 volts, three-phase and 200 volts single-phase, with a master-controlled frequency of 50 hertz. For tariff rates please see Table 19.
Gas
The Hong Kong and China Gas Co. Ltd. supplies towngas to Hong Kong Island, Kowloon, New Kowloon and the urban areas of the New Territories.
In the New Territories, the area of supply includes Sha Tin, Kwai Chung, Tsuen Wan and the neighbouring island of Tsing Yi.
Towngas is produced in eight modern cyclic naphtha reforming plants, with a capacity of 1.5 million cubic metres a day.
Towngas is distributed at a calorific value of 17.27 MJ/m3 and a specific gravity of approximately 0.56. Gas is sold on the thermal basis (one therm =105.5 megajoules). For towngas charges please see Table 20.
Industrial Gases
Various industrial gases are obtainable in Hong Kong in either bulk or cylinder supply. Prices for the main ones are in Table 21.
Gas supplies are complemented by full technical back up services.
Petroleum Products
Petroleum products are marketed through local offices of international oil companies such as Shell, Mobil, Caltex and Esso. They are also marketed through other importers such as Peninsula Oil, Hong Kong Oil and China Resources. Hong Kong imports all its petroleum products in refined form, principally from Singapore and China. A wide range of lubricating oils is also blended locally. Current price levels of major petroleum fuels are in Table 22.
Water
Water supply in Hong Kong is a responsibility of the Government's Public Works Department. Because the territory has no natural lakes or rivers or substantial underground water sources, providing an adequate water supply has been a major achievement.
There are 18 reservoirs with a total storage capacity of 579 million cubic metres. The largest of these-the High Island Reservoir with a capacity of 273 million cubic metres was formed by damming and draining the channel between High Island and the Sai Kung Peninsula. This scheme was the second 'reservoir in the sea' to be constructed by the Government; the first being the Plover Cove Reservoir with a capacity of 230 million cubic metres.
An additional supply of 168 million cubic metres of untreated water a year, which represents over one- third of present demand, is purchased from China. A 1980 agreement provides for an increase to 182 million cubic metres a year by 1982, and an average annual increase of about 35 million cubic metres thereafter- meeting in full the increased forecast in demand.
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