A tender for the construction of an undersea power grid that will connect South Sumatra and West Java has received bids from five multinational companies.

State-owned electricity company PLN construction director Nasri Sebayang said that Siemens from Germany, Hitachi from Japan, Toshiba from Japan, a ABB and Marubeni consortium, and a consortium of Alstom from France and state-owned construction company PT Wijaya Karya (WIKA), had formally passed the pre-qualification process.

Sebayang was quoted by Antara as saying, "The bidders completed the pre-qualification selection process in 2012 and are ready to join the tender."

The 700km South Sumatra-Java transmission network will have a capacity of 500kV.

It will be used to transmit power supply from a number of coal-fired power stations currently being built in South Sumatra to Java.

Sebayang said that the $2.06bn undersea power grid project is expected to start in 2103 and would be completed in 2016.