Idemitsu Kosan has a long history with renewable energy projects in Japan and Idemitsu Australia is proud to bring that practice to Australia. We are committed to exploring diverse natural resources such as sunlight, wind, water, waves, geothermal heat and biomass.


Muswellbrook Pumped Hydro and Australian Renewable studies

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Global Renewable Projects

We harness four key progressive energy sources to set a global standard where the economy and the environment can exist in harmony.

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Idemitsu Kosan supply wind power to their Japanese customers through the Futamata Wind Development Co. Ltd, jointly operated with Japan Wind Development Co.Ltd.


Solar power is one of the cleanest generation systems, producing zero carbon dioxide emissions. Idemitsu Kosan currently operate three solar plants in Fukuoka, Himeji and Fukushima prefectures.


Idemitsu Kosan have constructed a commercial hydrogen station at Narita Airport where hydrogen is supplied to fuel cell vehicles.


Idemitsu Kosan are currently undertaking concept studies on Cassava Basis, a natural resource material for ethanol, bioethanol, starch and feed from Cambodia and Palm Oil in both Indonesia and Malaysia.

Monday 28th May, 2018

Idemitsu is reviewing a number of opportunities to utilise our Australian assets including land and infrastructure for renewable energy projects.

Muswellbrook opportunities

A renewable energy project at Muswellbrook incorporating a pumped hydro energy storage facility is one of those opportunities.

The area at Muswellbrook that would be required for any project is a mining void that is already available and is no longer being mined.

Idemitsu has not entered into any agreement with a party regarding the proposed project at this time.

Coal will continue to be an important part of Idemitsu’s business in Australia alongside our existing fuel and agricultural businesses.

Australian Concept Studies

We are exploring options to develop renewable power projects across our sites in Queensland and New South Wales, including solar and wind power in conjunction with battery storage.

The concept studies we are conducting focus on hybrid renewable energy technologies that are intended to provide a stable renewable power source to the grid in their local regions as well as support existing mining operations.