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Capricornia Pumped Hydroelectric Energy Storage and Transmission Project

Project overview*

EIS statusEIS active
Description Pumped hydroelectric energy storage (PHES) and transmission project with a stored capacity of up to 750 megawatts for approximately 16 hours for a 24 hour period.
Proponent Eungella PHES Pty Ltd (trading as Capricornia Energy Hub) as trustee for Eungella PHES Trust and also representing Eungella Infrastructure Pty Ltd (joint proponents)
Location/s Approximately 80 km west of Mackay and 10 km northwest of Eungella. Map
Local government/s Isaac Regional Council and Mackay Regional Council

$2.87 billion

Key features
  • an 18 gigalitre upper reservoir with valley infill wall and an instream lower reservoir within the Broken River
  • 750 megawatt powerhouse generation facility and tunnels for water conveyance to connect the reservoirs and powerhouse
  • approximately 17 kilometre long overhead transmission line and substation connecting the PHES to the existing Powerlink Strathmore to Nebo 275 kilovolt transmission line.
Construction start date 2025
  • 600 full time equivalent (construction)
  • 65 full time equivalent (operation)

* Project information supplied by proponent and subject to change.

Environmental impact statement (EIS) process

Currently Draft terms of reference for EIS being prepared.
18 April 2024 Gazettal ( 245.5 KB) of 'coordinated project' declaration.
13 December 2023

Final initial advice statement ( 32.2 MB) submitted.

11 December 2023 Commonwealth Minister for the Environment and Water decided the PHES component is a ‘controlled action’.
7 December 2023 Commonwealth Minister for the Environment and Water decided the transmission component is a ‘controlled action’.  

Further Information

Read more about the EIS process.

Last updated: 18 Apr 2024