Electricity in Tonga in 2023
In 2023, electricity consumption in Tonga predominantly relied on fossil fuels, which accounted for more than four-fifths, or about 86%, of the total electricity generation. In contrast, low-carbon energy sources comprised only about 14%, all of which came from solar energy. This indicates a limited diversity in Tonga's low-carbon energy portfolio, as there are other viable low-carbon options such as nuclear energy that are not currently utilized. The heavy reliance on fossil fuels is concerning given the global push towards reducing carbon emissions and mitigating climate change impacts.
Data sources used on this page include Ember. More about data sources →
Is Electricity Growing in Tonga?
Electricity consumption in Tonga experienced a notable decline from 2022 to 2023. In 2023, the total electricity usage was approximately 669 kWh per person, representing a reduction of 92 kWh per person compared to the previous year, which was 762 kWh per person. This decrease suggests a decrease in overall electricity consumption, which may be worrying in light of growing demand for electricity worldwide. Conversely, low-carbon electricity generation remained nearly unchanged with a slight increase from 95 kWh per person to 96 kWh per person, showcasing almost no progress in the expansion of clean energy sources.
Suggestions
To increase low-carbon electricity generation, Tonga should consider expanding its solar infrastructure, given its current engagement and success with this technology. Looking at other regions for inspiration, Lebanon's solar generation, which reaches 31%, and Nevada's at 30%, demonstrate the potential for solar energy to play a larger role in electricity production. Regions with significant nuclear energy production, such as France and Slovakia, which generate 69% and 67% of their electricity from nuclear energy respectively, showcase how nuclear can contribute substantially to a low-carbon energy mix. These examples highlight opportunities for Tonga to diversify and increase the share of low-carbon electricity through solar and possibly exploring nuclear energy options.
History
Since 2017, Tonga's low-carbon electricity generation, sourced entirely from solar energy, has shown no quantitative growth. Each year from 2017 to 2023 has recorded zero changes in terms of TWh output from solar sources. This stagnation suggests that while solar infrastructure exists, expansion and further investment are needed to enhance its contribution to the overall electricity mix. With growing global emphasis on clean energy solutions, accelerating investments and development in solar energy could significantly enhance Tonga's energy independence and sustainability.
