Solar in Tonga: Solving Inter-Island Logistics Challenges
This analysis delves into the logistical challenges and practical solutions for establishing a solar manufacturing supply chain in Tonga, focusing on the critical link between
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.
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).
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.
While the total land surface area of Tonga's 171 islands is just 750 sq kms, the country's maritime boundaries cover more than 750,000 sq kms. This highlights the dispersed nature of the archipelago, with the distance between the southernmost island group of Tongatapu and the northern most islands of the Niuas being more than 600kms.
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