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Project overview
  • Lead Organisation

    Origin Energy Eraring Pty Limited


    New South Wales

    ARENA Program

    Advancing Renewables Program

  • Start date

    28 August 2018

    End date

    12 September 2020

  • Project Partners
    This pumped hydro project was completed on 12 September 2020.


The Shoalhaven Pumped Hydro Energy Storage (PHES) feasibility study will explore the technical and commercial feasibility of expanding the existing Shoalhaven PHES Scheme.

How the project works

The Shoalhaven Pumped Hydro Expansion Feasibility Study scheme will be approached by Origin Energy in two stages:

  • Stage 1 (completed) identified a preferred option for expanding the scheme
  • Stage 2 is funded by ARENA and will explore the technical and commercial feasibility of the preferred option, which will include determining the final design and capital costs and may lead to a final investment decision.

Area of innovation

As the economy decarbonises and as baseload coal generation retires, more intermittent energy generation (such as wind and solar) will enter the market. This creates the need for increased sources of dispatchable energy generation such as pumped hydro, as well as the need for large-scale energy storage.


Stage two of the project will determine whether the expansion of the PHES Scheme is feasible. Should the scheme be expanded it will provide increased reliable renewable energy.

Last updated 20 January 2021


How could pumped hydro energy storage power our future?

Reservoirs of water are poised to play a key role storing renewable energy to bolster the grid.

Hydro energy power station aims to double capacity

Origin’s Shoalhaven Pumped hydro energy power station is a quiet achiever nestled in the NSW Southern Highlands 150kms south of Sydney.

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