The Indonesian government is planning a new $2.1bn subsea cable to link Sumatra and Java in a move it hopes will reduce the number of blackouts being experienced in the latter.

Heavily populated Java, hugely important to the Indonesian economy, is expected to benefit from the undersea line from coal power rich Sumatra.
The cable will cross a 35 kilometre-wide portion of the Sunda Strait and will be able to transmit 500 kilovolts of electricity, Minister of National Development Planning Armida Alisjahbana told reporters.

Alisjahbana said $1.19bn of the required funds will come from the Japan International Cooperation Agency (JICA), a body which promotes development in emerging economies.

JICA could also fund the remainder, depending on Indonesian presidential approval, Alisjahbana said.

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