Murraylink was commissioned in 2002 and is believed to be the world's longest underground transmission system and cost more than A$177 million.

It was sold to the Australian Pipeline Trust (APA Group) in March 2006 for A$153 million.

In December 2008 ownership of Murraylink (as well as Directlink) was transferred to the newly formed Energy Infrastructure Investments Group, while APA continued as the operator.

[1] The ownership of EII is APA with 19.9%, with the balance with Japan-based Marubeni Corporation with 49.9% and Osaka Gas with 30.2%.

While Murraylink is rated at 220MW, it is unable to operate at capacity during periods of high demand due to limitations in the transmission infrastructure at either end.