A fully integrated, modular system, suitable for extended service in local conditions

Project name:

Rarotonga BESS

Project value:

$4.6 Million

Battery Energy Storage

Cook Islands Government,
Office of the Prime Minister


Rarotonga, Cook Islands

About the Rarotonga BESS

A battery energy storage system (BESS) installed at the Te Mana Ra Solar PV facility, on the island of Rarotonga and connected to the electricity grid.


The BESS provides increased flexibility for the electricity utility Te Aponga Uira (TAU) to manage the output of increasing capacity of renewable generation in the grid.

The BESS is installed at the existing solar farm at the airport in a very small footprint. Due to the footprint restrictions, MPower's solution maximised the kWh output per square meter to minimise land utilisation and enable further
battery capacity installation in the future.

The BESS includes:
• A fully integrated, modular system, suitable for extended service in local conditions
• Usable storage capacity of 5.6MWh
• Capability to charge and discharge at 1 MW
• High voltage (11 kV) electrical connection to the grid

Copy of Rarotonga filtered.jpg

Additional case studies

MPower has successfully delivered a wide range of renewable and conventional power systems across the region.


Contact us for details of any of our projects and check out the selected case studies below

Solar for Samoa
Pirie Solar Farm
Pirie, South Australia
Rarotonga BESS
Cook Islands
Mannum Solar Farm
Mannum, South Australia
Endeavour Energy BESS
Dapto, New South Wales
Weipa Solar Farm
Weipa, Queensland
Gatton, Queensland
Kogan Creek SPP
Show More

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