| Tallawarra Power Station | |
| Coordinates: | -34.5228°N 150.8081°W |
| Country: | Australia |
| Location: | Yallah, western shore of Lake Illawarra, Wollongong |
| Status: | O |
| Commissioned: | 2009 |
| Owner: | EnergyAustralia |
| Th Fuel Primary: | Natural gas |
| Ps Units Manu Model: | Alstom |
| Ps Combined Cycle: | Yes |
Tallawarra Power Station is a 435MW combined cycle natural gas power station[1] in the city of Wollongong, 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 260MW gas turbine and a 160MW steam turbine unit[3] and has a total capacity of .[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 kV switching station maintained by Endeavour Energy (Previously known as Integral Energy).
TRUenergy has also indicated that an additional power plant is being considered for the site, to be known as Tallawarra B.[1]
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 . 'A' station had four 30MW Thomson-Houston 2 stage (HP+LP) turbo generators. Steam was supplied by four Simon Carves pulverised fuel boilers at 300000abbr=onNaNabbr=on at a pressure of 625abbr=onNaNabbr=on and a temperature of 865°F. In 1960 "B" station was built having two 100MW 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 800000abbr=onNaNabbr=on at a pressure of 1680abbr=onNaNabbr=on and a temperature of 1000°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 and a 3-stage steam turbine of with a single 450MW 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]