Tallawarra Power Station

Tallawarra Power Station
Location of the Tallawarra Power Station in New South Wales
Country Australia
Location Yallah, western shore of Lake Illawarra, Shellharbour
Coordinates 34°31′22″S 150°48′29″E / 34.52278°S 150.80806°E / -34.52278; 150.80806Coordinates: 34°31′22″S 150°48′29″E / 34.52278°S 150.80806°E / -34.52278; 150.80806
Status Operational
Commission date 2009
Owner(s) EnergyAustralia
Thermal power station
Primary fuel Natural gas
Combined cycle? yes
Power generation
Units operational
  • 1 × 260 megawatts (350,000 hp) GT26 gas turbine
  • 1 × 160 megawatts (210,000 hp) steam turbine
Make and model Alstom
Nameplate capacity 435 megawatts (583,000 hp)

Tallawarra Power Station is a 435-megawatt (583,000 hp) combined cycle natural gas power station[1] in the city of Shellharbour, New South Wales, Australia. Owned and operated by EnergyAustralia, the station is the first of its type in New South Wales[2] and produces electricity for the state during periods of high demand.[3] It is located on the western shore of Lake Illawarra in the suburb of Yallah.

The station comprises a 260-megawatt (350,000 hp) gas turbine and a 160-megawatt (210,000 hp) steam turbine unit[3] and has a total capacity of 435 megawatts (583,000 hp).[1] It uses many of the previous power station's structures including the cooling system channels from Lake Illawarra. The power station is connected to the state grid via a 132-kiloelectronvolt (21.1 fJ) switching station maintained by Integral Energy.

TRUenergy has also indicated that an additional power plant is being considered for the site, to be known as Tallawarra B.[1]

History

Tallawarra originally operated as a coal-fired power station beginning in 1954 and reaching full operation by 1961.[4] At its peak, it had a capacity output of 320 megawatts (430,000 hp). 'A' station had four 30-megawatt (40,000 hp) Thomson-Houston 2 stage (HP+LP) turbo generators. Steam was supplied by four Simon Carves pulverised fuel boilers at 140,000 kg/h (300,000 lb/h) at a pressure of 4.31 MPa (625 psi) and a temperature of 463 °C (865 °F). In 1960 "B" station was built having two 100-megawatt (130,000 hp) English Electric 3-stage turbo generators (No. 5+6). The generators were hydrogen-cooled but didn't have any stator water cooling. Steam was supplied by 2 ICAL pulverised coal burning boilers at a rate of 360,000 kg/h (800,000 lb/h) at a pressure of 11.6 MPa (1,680 psi) and a temperature of 538 °C (1,000 °F). The station closed in 1989, and stood abandoned by the foreshore of Lake Illawarra. It was demolished over a ten-year period.[5]

In early 2003 the site was sold by Pacific Power to TRUenergy (then known as TXU) and construction of the gas-fired combined cycle plant began in November 2006. The plant consists of a gas turbine of 288 megawatts (386,000 hp) and a 3-stage steam turbine of 160 megawatts (210,000 hp) with a single 450-megawatt (600,000 hp) generator. A unique feature is the waste heat boiler with a super heater and two reheater sections for the IP and LP stages of the turbine. Overall thermal efficiency is 60%.[6] It was opened by the NSW Premier Nathan Rees on 18 March 2009.[7]

See also

References

  1. 1 2 3 "Tallawarra Power Station". EnergyAustralia. Retrieved 2015-06-24.
  2. ↑ "Tallawarra power station". TRUenergy. Retrieved 2009-03-08.
  3. 1 2 "Tallawarra Power Station FAQs". TRUenergy. Retrieved 2009-03-08.
  4. ↑ "Yallah History". Wollongong City Library. Archived from the original on June 18, 2009. Retrieved 2009-03-08.
  5. ↑ "Transforming Tallawarra: GT26 based plant for booming New South Wales". Modern Power Systems. Retrieved 2007-09-28.
  6. ↑ "Tallawarra recent history". TRUenergy. Retrieved 2009-03-08.
  7. ↑ "Tallawarra taking off in NSW". EcoGeneration. Retrieved 2010-04-25.
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