In 2025, South Korea's electricity consumption paints a dichotomous picture between fossil fuels and low-carbon sources. More than half of the country's electricity, approximately 56%, is derived from fossil fuels like coal and gas. In contrast, low-carbon energy constitutes a sizable 41% of electricity, with nuclear power being the most significant source within this category at slightly more than 30%. Solar energy contributes about 7%, with biofuels and hydropower making up close to none, forming the remainder of the low-carbon share. This highlights a substantial reliance on nuclear power within the low-carbon bracket, underscoring its crucial role in South Korea's clean energy landscape.
Data sources used on this page include EIA and IEA. More about data sources →
Is Electricity Growing in South Korea?
Regarding electricity growth in South Korea, recent data reveals concerns about the overall consumption trend. In 2025, the consumption per person stands at 11,246 kWh, marking a slight decline from the previous high in 2018 of 11,427 kWh per person. This highlights a drop of 182 kWh per person, reflecting stagnation in the country's overall electricity growth. Encouragingly, low-carbon electricity generation per person has seen a modest increase, setting a new record of 4,623 kWh per person in 2025, an uptick from the previous high in 2024. This positive stride, albeit moderate, suggests growing momentum for clean energy, which is essential to counterbalance the overarching reliance on fossil fuels and to tackle climate-related challenges.
Suggestions
To enhance low-carbon electricity generation, South Korea could focus on expanding its nuclear facilities, given their existing substantial contribution to clean energy. Successfully expanding low-carbon capacities seen in regions like France and Slovakia, where nuclear energy accounts for approximately two-thirds of their total electricity, provides a viable blueprint for South Korea. Similarly, studying the solar energy deployment in California and Nevada, where solar generation approaches or exceeds 30%, could guide national efforts. By adopting best practices from these regions and increasing investments in nuclear and solar infrastructures, South Korea can significantly boost its clean electricity portfolio, promoting a more sustainable and resilient energy future.
History
The history of low-carbon electricity in South Korea, particularly nuclear development, reveals substantial growth in earlier decades. From the mid-1980s to the late 1990s, nuclear electricity generation witnessed consistent increases, indicating a strong drive towards enhancing clean nuclear power capacity. However, in the 2010s, the nuclear sector faced significant setbacks with declines registered in years like 2013, 2017, and 2018, reflecting a temporary downturn in nuclear output. Yet, the subsequent recovery from 2019 to 2024, including notable increases in 2019 and 2022, underscores a promising resurgence. Recognizing the importance of sustaining and further enhancing this momentum is crucial for South Korea to continue its progress toward comprehensive low-carbon electricity generation.
