The Queensland – New South Wales Interconnector (QNI) is a 330 kV AC interconnection between

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

and

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

, Australia.
The link was commissioned in 2001. It consisted of double-circuit 330 kV lines between

Armidale Armidale is a city in the Northern Tablelands, New South Wales, Australia. Armidale had a population of 24,504 as of June 2018. Estimated resident population, 30 June 2018. It is the administrative centre for the Northern Tablelands region. It ...

Dumaresq The Dumaresq is a mechanical calculating device invented around 1902 by Lieutenant John Dumaresq of the Royal Navy. It is an analogue computer that relates vital variables of the fire control problem to the movement of one's own ship and that ...

, Bulli Creek and

Braemar Braemar is a village in Aberdeenshire, Scotland, around west of Aberdeen in the Highlands. It is the closest significantly-sized settlement to the upper course of the River Dee sitting at an elevation of . The Gaelic ''Bràigh Mhàrr'' prop ...

and a double-circuit 275 kV line between Braemar and Tarong.
There is an additional 330kV Dual Circuit to complement the QNI from Bulli Ck Switching Station (27°55'15.8"S 150°50'34.8"E) via

Millmerran Power Station The Millmerran Power Station is a coal-fired power station south of Millmerran in the Darling Downs region of Queensland, Australia. The power station was commissioned in 2002 and cost $1.5 billion to build. The power station is owned and oper ...

& Switching Stations (27°57'53.7"S 151°16'26.9"E) to Middle Ridge Switching Station & 330/275/110kV Sub, South of Toowoomba (27°37'22.2"S 151°56'43.0"E).
The original maximum transfer capacity was 300 to 350 MW in both directions. This has been progressively increased to 700 MW from New South Wales to Queensland and 1,200 MW from Queensland to New South Wales.
The interconnector is operated by

TransGrid Transgrid is the manager and operator of the high voltage electricity transmission network in New South Wales and the Australian Capital Territory, Australia, and is part of the National Electricity Market (NEM). The company's offices are located ...

and

Powerlink Queensland Powerlink Queensland (formally Queensland Electricity Transmission Corporation Limited) is an electricity transmission system operator owned by the Government of Queensland which operates the high-voltage electricity transmission infrastructure ...

References

2001 establishments in Australia Electric power transmission systems in Australia Energy in New South Wales Energy in Queensland {{Electric-power-stub