South Hummocks BESS

RWE Renewables Australia is proposing to construct a standalone, lithium-ion Battery Energy Storage System (BESS) at South Hummocks in South Australia, about 125 kilometres north-west of Adelaide in the Barunga West Council.

The proposed project site consists of 56 hectares of private land zoned rural under the South Australian Planning, Development and Infrastructure Act 2016. It is currently used for cereal cropping and is situated close to existing grid infrastructure. The proposed BESS would have a maximum capacity of 80 megawatts (MW) and 320 megawatt hours (MWh).

The BESS would connect to the Kadina East 132kV line, via the Hummocks substation.

As part of this project, RWE will be engaging with the local community to develop lasting partnerships. 

Project location

South Hummocks BESS map | RWE in Australia

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We look forward to engaging with the community and fostering opportunities in the area, as well utilising local providers where possible to help enhance the economic and social outcomes of the region.

Project status: Early development

Operation: Targeting 2027 for initial operations

Construction and operation of the project would involve the following key components:

BESS Infrastructure

  • BESS containers;
  • Inverters;
  • Medium Voltage (MV) transformers;
  • Cooling systems (as required);
  • Switchroom;
  • Substation.

General Site Infrastructure

  • Switchyard;
  • Operations and Maintenance (O&M) buildings;
  • Site office and associated amenities (bathroom facilities, lunch/break room, and first-aid room);
  • Storage sheds;
  • Cabling;
  • Fencing; and
  • Staff carpark.

Facts & figures

About 00 ha

development footprint

About 00 full-time

jobs during construction

Up to 00 -month

construction period

00 MW

battery storage

00 MWh

battery duration

Targeting 00

for initial operations

Project benefits

The proposed South Hummocks BESS aims to improve the reliability and security of the electricity network by storing energy during periods of low demand, and dispatching energy during periods of peak demand and emergency events. The BESS would be a key piece of infrastructure in supporting energy storage development in regional Australia and would subsequently assist in reducing emissions by improving national resilience in energy supply and supporting affordable energy for Australian homes.

The project would also create job opportunities, with an estimated 80 full-time equivalent jobs during the up to 24-month construction period and up to three ongoing positions during operations.

Wellington Town BESS - project benefits | RWE in Australia

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project timeline

South Hummocks BESS timeline | RWE in Australia

Sponsorship fund

RWE Renewables Australia has implemented a sponsorship fund for the proposed South Hummocks BESS, which is currently open for applications and will remain active throughout the planning and approvals process. If you would like to apply for sponsorship please download our application form here.

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South Hummocks BESS team

RWE Renewables Australia Pty Ltd.

Suite 5, Level 9
350 Collins Street
Melbourne, 3000, Australia