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The Petty Harbour Hydro Electric Generating Station which began construction in 1898 was the first hydroelectric generating station in Newfoundland and Labrador. It was built by the St. John's Street Railway Company, a company established by Robert Reid. Operation commenced on 19 April 1900. In 1920 Reid renamed the company the St. John's Light and Power Company. On 7 February 1921 an avalanche destroyed of the wooden penstock that carried water from the dam to the generating station, cutting off all electrical power to St. John's for almost five days. Then in 1924 the plant changed ownership to the Royal Securities Corporation of Montreal where they began extensive reconstruction of the plant and watershed area. On 1 May 1978 the plant was entered in the Canadian Engineering Heritage ( Record ) as a model reflecting progressive adaptation to emerging technology, and remains today as one of the few plants of its type still in active service. Some interesting facts on the generating station: * 3,200 ft (975 m) of woodstave penstock * 350 ft (107 m) of tunnel blasted through Gull Hill * 180 ft (55 m) of steel penstock * 500 V, original Westinghouse generator * 2,100 horsepower (1.6 MW) Voith turbines installed in 1908 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Petty Harbour Generating Station」の詳細全文を読む スポンサード リンク
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