''Ohonua, ''Eua Tonga (02nd March 2023) — Tonga Power Limited (TPL) has commissioned a new solar and battery energy storage system in Eua, Tonga, with the financial support of the Government of
This review of the Tonga Outer Island Renewable Energy Project (OIREP) was commissioned by the Australian High Commission to Tonga. The review was led by Scott Rankin, with support
In May 2023, we launched our largest European battery-based energy storage project at the Antwerp platform in Belgium. With its 40 containers, the site will develop a capacity of 75
The Tonga Independent Shared Energy Storage Project isn''t just a local fix – it''s a blueprint for 41 small island nations worldwide. From Fiji to the Bahamas, energy ministers are
Akuo, one of the largest producers of renewable energy in the Pacific region, announces the launch of its largest energy storage project in the region. A major technological advance for
In May 2023, we launched our largest European battery-based energy storage project at the Antwerp platform in Belgium. With its 40 containers, the site will develop a capacity of 75
Tonga''''s first utility-scale battery energy storage system (BESS) project was officially opened today at an event attended by the South Pacific Kingdom''''s prime minister.
''Ohonua, ''Eua Tonga (02nd March 2023) — Tonga Power Limited (TPL) has commissioned a new solar and battery energy storage system in Eua, Tonga, with the
A special event today marks the official opening of Tonga''s first ever large-scale Battery Energy Storage Systems (BESS) by the Prime Minister Hon. Hu''akavameiliku. The two Battery Energy Storage systems
A special event today marks the official opening of Tonga''s first ever large-scale Battery Energy Storage Systems (BESS) by the Prime Minister Hon. Hu''akavameiliku. The two
Each party has proven to be open, forward-looking and able to find solutions to install and commission the largest battery energy storage system in the South Pacific, despite a close of
Each party has proven to be open, forward-looking and able to find solutions to install and commission the largest battery energy storage system in the South Pacific, despite a close of
NUKU''''ALOFA, TONGA (18th July 2019) -- Tonga''''s first Large scaled Battery Energy Storage System (BESS) will be built at the Popua Power Station after an agreement was signed today
Akuo, one of the largest producers of renewable energy in the Pacific region, announces the launch of its largest energy storage project in the region. A major technological advance for sustainable development.

This means that little more than 30,000 people are spread across 35 islands, presenting acute issues in terms of the provision of modern infrastructure. At OIREP commencement, the ADB estimated that 89% of all households across Tonga had access to electricity.
This has contributed to the Tongan economy and electricity consumers being exposed to high and volatile electricity prices due to fluctuations in the price of oil internationally. According to UK-based aggregate website Cable, Tonga's electricity is the 13th most expensive in the world, at an average cost of USD 0.35 per kilowatt hour (kWh).
The project achieved its proposed impact, in terms of helping Tonga reduce its dependence on imported fossil fuel for power generation with OIREP assets estimated to have reduced diesel usage by 0.5 million litres annually. Central to the project outcome was the provision of on-grid and off-grid generation solar power at reduced cost.
Australia also has a long history of engagement in relation to helping secure Tonga’s outer island energy needs. In the early 2000s, Australia funded the Ha’apai Outer Islands Electrification project (HOIEP), which involved the installation of diesel-powered generators and electrical reticulation on four islands in the Ha’apai group.
However, significant needs and opportunities exist to further expand renewable energy systems on outer islands. Less tangible, but also important is the role played by OIREP in consolidating Tonga’s social contract with remote island dwelling communities, by allowing for enhanced and more reliable access to electricity.
OIREP’s on-grid work was always a matter of laying the foundations for further investment in renewables and enjoyed the ease of working through one implementing partner – Tonga Power Limited – who were incentivised to help ensure the program succeeded given they will manage all on-grid assets post-project.
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