Newport Power Station
Newport Power Station
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Newport Power Station

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Newport Power Station

The Newport Power Station was a complex of power stations located on the west bank of the Yarra River, approximately 6 km south-west of Melbourne, Victoria, Australia, in the suburb of Newport. Newport A, B, and C were coal-fired plants which operated at the site between 1919 and the 1980s, and were claimed to be (in terms of the amount of plant) the largest power station in the southern hemisphere in 1953 with 42 boilers and 14 turbo-alternators producing 327 megawatts (439,000 hp).

Newport D is a gas-fired peaking power plant which has operated since 1981. It uses natural gas to generate steam in a boiler which supplies a three-stage steam turbine coupled to a generator to produce up to 510 MW (680,000 hp) of electricity. The plant has a single smokestack 183 m /600 ft in height which towers over the local vicinity.

The power station is owned by Ecogen Energy. The output from Ecogen's Newport and Jeeralang power stations is currently contracted to EnergyAustralia, the country's third-biggest electricity and gas retailer.

Newport A was opened in 1918 as a coal-fired power station by the Victorian Railways to supply electricity as part of the project for the electrification of its suburban rail system. Initially, there were six turbo-generators; four were 15 MW (20,000 hp) capacity and two were 12.5 MW (16,800 hp). The speed was 1500 RPM and produced 25 Hz. Steam was supplied by 24 Babcock & Wilcox chain grate boilers at 250 psi (1,700 kPa). The two smaller generators were replaced with a 30 MW CA Parsons & Company and a 35 MW single cylinder Parsons alternator, numbered A2+A4. Steam was supplied by the four "M" boilers, which were pulverized coal-fired at 400 psi (2,800 kPa). The total capacity was 120 MW (160,000 hp).

Newport A also supplied electricity to businesses that required 25 Hz power, and supplied bulk electricity to the Melbourne City Council Electric Supply Department, the Melbourne Electric Supply Company and the State Electricity Commission of Victoria (SECV). Newport A was transferred to the SECV in 1951.

Newport B was opened by the SECV in 1923 to supply electricity to Melbourne until the Yallourn Power Station entered service. Initially there were two Parsons 15 MW (20,000 hp) generators. Speed 3000 RPM and 50 Hz. Later No.3 was installed with a 30 MW (40,000 hp) capacity, and No.8, a Stahl turbine with a capacity of 22 MW (30,000 hp). Steam was supplied by 10 B+W chain grate boilers at 250 psi (1,700 kPa). The total capacity of Newport B was 82 MW (110,000 hp).

Newport C, with a capacity of 120 MW (160,000 hp), was opened in 1947 by the SECV, after wartime delays. There were four CA Parsons & Company 30 MW (40,000 hp) turbo generators numbered 4, 5, 6+7. Steam was supplied by 8 "D" type ICAL chain grate boilers, each producing 175,000 lb/h (79,000 kg/h) of steam at 620 psi (4,300 kPa) and 840 °F (449 °C). These were the last chain grate boilers used in Victoria and were still in service in early 1981.[citation needed]

The power station boilers were originally fueled by black coal from New South Wales, but were converted to burn brown coal briquettes in the 1950s. Use of the plants declined with the opening of newer power stations in the Latrobe Valley, becoming used for peak loads in later years.

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