The Asian Development Bank (ADB) and the Australia Government are kicking in to fund the construction and installation of solar power systems on nine of Tonga’s outer islands.
Tonga is comprised of 176 islands scattered over 700,000 square kilometres of the southern Pacific Ocean and is home to 103,000 people.
Tonga currently depends on expensive and polluting imported diesel for 90% of its electricity generation. In some areas, the cost of electricity can be as high as 74 cents per kilowatt hour.
The Outer Islands Renewable Energy Project will help to change that by funding solar power systems on Eua, Vava’u and Ha’apai, along with four outer islands in the Ha’apai group as well as on Niuatoputapu and Niuafo’ou. The solar panels will be connected to state and community owned power distribution networks on most of the target islands.
ADB will provide a $2 million (currency unknown at the time of publishing) grant from its concessional Asian Development Fund, while the Australian Agency for International Development (AUSAid) will provide a $4.5 million grant, to be administered by ADB.
The Government of Tonga will contribute $300,000 equivalent; for a total investment cost of $6.8 million.
The total installation will be reasonably small; around 1.25 megawatts capacity, but it will reduce diesel imports by an estimated 0.48 million litres a year. A litre of diesel generates approximately 2.6 kilograms of carbon emissions; so the project will offset around 1,248 tonnes of CO2 a year.
The Outer Islands Renewable Energy Project will be executed by Tonga’s Ministry of Finance and National Planning and will be implemented over 6 years with an estimated completion date of December 2019. Consultants will provide training on the operation and maintenance of the facilities along with management services that will extend for at least 5 years after completion of the training.
Tonga’s interest in solar goes beyond cheap electricity – the multiple effects of climate change pose a significant threat to the nation.
