Switzerland-based automation firm ABB has secured a $120m contract to supply overall electrical power system (EPS) for the Jansz-Io compression (J-IC) project offshore Australia.

The contract has been awarded by Chevron Australia and Aker Solutions for the project, which is being developed with an investment of $4bn (A$6bn).

The contract involves the supply of majority of the electrical equipment, both topside and subsea, for the J-IC project. This will enable power transmission over a distance of about 140km and at depths of 1,400m.

ABB said that the project will combine two technologies, power from shore and Variable Speed Drive (VSD) long step-out subsea power.

The contract follows the completion of concept development and a front-end engineering and design (FEED) study.

ABB plan to commence work immediately while the subsea compression system is scheduled for commissioning in 2025.

The J-IC project is will see the construction and installation of a floating field control station (FCS), nearly 6,500t of subsea compression infrastructure, and underwater power cable.

ABB process automation president Peter Terwiesch said: “The Jansz-Io Compression project is a major enabler in maintaining an important source of natural gas to customers in Asia Pacific.

“It will support energy transition across the region where many countries primarily rely on coal for energy generation.”

Last month, Aker Solutions received a contract from Chevron Australia to offer subsea compression technology for the J-IC project.

The J-IC project aims to exploit the low-pressure reserves from the Jansz-Io field while sustaining plateau production rates for the Gorgon project facilities located on Barrow Island (BWI).

The Jansz-Io field is located nearly 70km north-west of the Gorgon gas field, and 200km off the north-western coast of Australia, at approximately 1,400m water depths.

Chevron, through its subsidiaries, is the operator of the integrated Gorgon project with a 47.3% stake. Its partners in the project are ExxonMobil (25%), Royal Dutch Shell (25%), Osaka Gas (1.25%), Tokyo Gas (1%), and JERA (0.41%).