Oven Mountain Pumped Hydro Energy Storage Project


Project at a glance


NSW Australia
Market Sounding
OMPS PTY LTD
1.8B

Contact Details


Dusko Bajic
Industry Manager

The Project

Alinta Energy is developing the Oven Mountain Pumped Hydro Energy Storage Project - an 'off river' development located adjacent to the Macleay River between Armidale and Kempsey in the New England Renewable Energy Zone.

The Project involves the construction and operation of a hydro-electric scheme, which includes two 'off river' water containment structures to create an upper and a lower reservoir on an ephemeral tributary of the Macleay River.

The Project will play a key role in the required decarbonisation of the National Electricity Market. It will aid in the transition of the power grid towards cleaner, more reliable and affordable electricity by supporting up to 1,600 MW of new renewable energy projects.

An underground power station complex will be connected to the reservoirs by tunnels and other infrastructure. The Project will produce up to 900 MW of electricity and will store enough water for up to 8 hours of dispatchable, reliable energy at full generation.

The Project intends to transmit and receive power by connecting to an existing Transgrid transmission line that runs between Kempsey and Armidale, known as Line 965. The Project includes the establishment of a transmission connection to Line 965, including the construction of a substation and connection infrastructure, access roads and transmission lines rated up to 330 kV.

The transportation access route to the Project area is via the Kempsey-Armidale Road. The Project will require a new two-lane unsealed access road and a minimum of one new single lane low-level bridge crossing of the Macleay River, to connect the Project area to Kempsey Armidale Road.

It is proposed that water used for construction purposes and the initial one-off filling of the reservoirs will be pumped from the Macleay River during high flow periods in a manner which does not compete against downstream users. The Project may also require periodical 'top ups' during the operational period.

The Project construction will be staged over a period of approximately 5 years. While planning and detailed design work are not yet complete, the current Project schedule is based on construction commencing at the end of 2025.

The Project includes construction worker accommodation on the site and it is anticipated most personnel will be transported to the Project area by bus. Construction areas not required for operation will be progressively rehabilitated throughout the construction and once operational.

The expected operational lifespan of the Project is in excess of 100 years.

More information about the project can be found here.


About us

Oven Mountain Pumped Hydro Energy Storage project is being developed by Alinta Energy.

Alinta Energy is one of Australia's largest energy retailers, generators, investors and developers. In the last decade we've grown from being the largest residential gas retailer in Western Australia to the preferred electricity and gas provider for more than 1.1 million homes and businesses Australia-wide.

We have an owned and contracted generation portfolio of 3,000 MW across Australia and New Zealand - including gas, wind, solar, and coal. Our determination to make energy better has put us at the forefront of the transition to renewables. We built Western Australia's highest producer of renewable energy (the Yandin Wind Farm), the first grid-forming big battery in Australia, and the biggest remote solar installation at the Chichester solar-gas hybrid project. And we're developing over $10 billion of renewables and storage projects including offshore wind and pumped hydro projects.

We're proud of our local customer service centres and agents in Perth, Western Australia and Morwell in Victoria, and employ around 1000 people across the country.


How to register an Expression of Interest (EOI)

Work packages currently available to submit an EOI for are listed in the 'Work Packages' tab above. Refer to the 'EOI User Guide' below for instructions and assistance to submit an EOI.

To submit an initial EOI for the work packages, companies must have an ICN Gateway company profile. Information on how to register your company on ICN Gateway is detailed below.

If you registered your EOI in previous stage, you dont need to register again. just keep your company profile updated.

Invitation to Complete Registrations

Alinta Energy encourages all local suppliers to register their Expression of Interest in the Oven Mountain Pumped Hydro Energy Storage Project.

Although the final procurement decisions will be made by the principal contractor, Alinta Energy will be encouraging the contractor to use local suppliers where possible.

If you need assistance to register on the ICN Gateway, then please contact ICN directly by emailing Dusko Bajic on DBajic@icnnsw.org.au.

Individuals wishing to register their interest in employment opportunities associated with the Project, can register their interest via the project website www.ompshydro.com/community


ICN Gateway Company Registration

- Click here to register your company profile on ICN Gateway.

- Support and assistance are available through the document 'Creating an ICN Gateway Company Profile' below.

- Your company summary and company description are used to assess your ability to complete projects when you lodge an EOI - please ensure that your company invests the time and energy required to represent your company in the most effective manner possible.

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