Question: What coal-powered thermal power station is in a town about 243 km north of Sydney.
Context: Ennore creek is a backwater located in Ennore, Chennai along the Coromandel Coast of the Bay of Bengal.  It is located in the zone comprising lagoons with salt marshes and backwaters, submerged under water during high tide and forming an arm of the sea with the opening to the Bay of Bengal at the creek.  The zone is spread over an area of 4 km, and the creek covers an area of 2.25 km.  It is located 20 km north of the city centre and 2.6 km south of the Ennore Port, and the creek area stretches 3 km into the sea and 5 km along the coast.  The creek is nearly 400 m wide, elongated in northeast-southwest direction and merging with the backwater bodies.  Once a flourishing mangrove swamp, the creek has been degraded to patches in the fringes mainly due to human activities in the region.  The depth of the creek varies from 1 to 2 m and is shallow near the mouth.  The north–south trending channels of the creek connect it with the Pulicat Lake to the north and to the distributaries of the Kosasthalaiyar River in the south.  The northwestern part of the creek merges with the tidal flats.  The soil in the region is of loamy and alluvial types.  Most of the area consists of tracts of alluvial soil and the eastern region comprises beach dunes, tidal flats and creek.  The creek is oriented from west to east and opens into the Bay of Bengal to the east at Ennore.  The creek acts as an outlet for the excess water from the Poondi Reservoir.  The creek separates the town of Ennore from the Ennore Port located in the north and the Kattupalli Shipyard located further north.  The North Chennai Thermal Power Station is located at the north of the creek and the Ennore Thermal Power Station is located to the south.  The creek is part of the Pulicat water system, including the Pulicat lagoon and the Buckingham Canal.  As per the 1991 Coastal Regulation Zone notification, the entire Pulicat water system is designated CRZ I.  The creek is experiencing siltation due to emergence of the Ennore Port. Baringo Thermal Power Station, also Cummins Thermal Power Station, is a 12 MW biogas-fired thermal power station in Kenya, the largest economy in East African Community. Liddell Power Station is a coal-powered thermal power station with four 500 MW GEC (UK) steam driven turbo alternators for a combined electrical capacity of 2000 MW .  Commissioned between 1971 and 1973, the station is located at Lake Liddell near Muswellbrook, in the Hunter Region, New South Wales, Australia. Neyveli Thermal Power Station is a set of power plant situated near lignite mines of Neyveli.  It consists of two distinct units ("Neyveli Thermal Power Station I" and "Neyveli Thermal Power Station II") capable of producing 1020 MW and 1,970 MW respectively including their expansion units.  It is operated by NLC.  The total installed capacity of this station is 2990 MW as of December 2014. Bayswater Power Station is a bituminous (black) coal-powered thermal power station with four 660 MW Tokyo Shibaura Electric (Japan) steam driven turbo alternators for a combined capacity of 2,640 MW .  Commissioned between 1985 and 1986, the station is located 16 km from Muswellbrook, and 28 km from Singleton in the Hunter Region of New South Wales, Australia. Sonon Asogli Thermal Power Station, also Asogli Thermal Power Station, is a 200 MW natural gas-fired thermal power station in Ghana.  It is located in the Kpone neighborhood of the port city of Tema, approximately 32 km , by road, east of the central business district of Ghana's capital city, Accra. Dahanu Thermal Power Station or Reliance Dahanu Thermal Power Station (often abbreviated as DTPS) is a coal based thermal power plant located at coastal Dahanu town in Palghar district in the Indian state of MaharashtraThe power plant is operated by Reliance Infrastructure.  The plant is located on Mumbai-Ahmedabad rail line and is 120 km away from Mumbai and 20 km away from Mumbai-Ahmedabad-Delhi National Highway 8 (India). Kpone Thermal Power Station II, also Kpone Independent Thermal Power Station, is a 340 MW multi-fuel-fired thermal power station under construction in Ghana. Muswellbrook is a town in the Upper Hunter Region of New South Wales, Australia, about 243 km north of Sydney and 127 km north-west of Newcastle. The Mettur Thermal Power Station is a coal-fired electric power station located in Salem district of Tamil Nadu.  It is operated by Tamil Nadu Generation and Distribution Corporation Limited.  The power station was commissioned during various periods from 1987 and this is the first inland thermal Power Station of TANGEDCO. The coal from Mahanadi Coalfields Limited (Talcher and Ib Valley) and Eastern Coalfields Limited (Raniganj and Mugma) are transported to the load ports of Paradip (Orissa), Vizag (Andhra Pradesh) and Haldia (West Bengal).  Thereafter the coal is transported to the discharge ports of Ennore and Tuticorin by ships.  From Ennore Port the coal is transported again through rail to Ennore Thermal Power Station and Mettur Thermal Power Station.
Answer: Liddell Power Station