South Korea

Critically Insufficient4°C+
Commitments with this rating fall well outside the fair share range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government targets were in this range, warming would exceed 4°C.
Highly insufficient< 4°C
Commitments with this rating fall outside the fair share range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government targets were in this range, warming would reach between 3°C and 4°C.
Insufficient< 3°C
Commitments with this rating are in the least stringent part of their fair share range and not consistent with holding warming below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government targets were in this range, warming would reach over 2°C and up to 3°C.
2°C Compatible< 2°C
Commitments with this rating are consistent with the 2009 Copenhagen 2°C goal and therefore fall within the country’s fair share range, but are not fully consistent with the Paris Agreement. If all government targets were in this range, warming could be held below, but not well below, 2°C and still be too high to be consistent with the Paris Agreement 1.5°C limit.
1.5°C Paris Agreement Compatible< 1.5°C
This rating indicates that a government’s efforts are in the most stringent part of its fair share range: it is consistent with the Paris Agreement’s 1.5°C limit.
Role model<< 1.5°C
This rating indicates that a government’s efforts are more ambitious than what is considered a fair contribution: it is more than consistent with the Paris Agreement’s 1.5°C limit.


Between 1990 and 2014, South Korea's emissions more than doubled. Emissions steeply increased in the early 1990s, with growth then continuing at a slower pace, and the CAT projects that GHG emissions growth will continue to slow. Actual emissions levels in the period 2010–2014 were above the BAU projections from the Third National Communication.

South Korea is one of the countries with the fastest growing emissions in the OECD. The high export rates from South Korea’s manufacturing industry play a critical role in South Korea’s increasing emission levels (Kim et al., 2015). In other developed economies such as the US, Australia or Canada, energy consumption per capita is projected to decline as economies shift towards the service sector and improve energy efficiency. However, South Korea is an exception: energy per capita is expected to continue to rise as industrial energy use increases and population declines (APERC, 2019; UN DESA, 2019).

Currently implemented policies are estimated to lead to an emissions level of 727–786 MtCO2e/year in 2030 (150–155% above 1990 levels), excluding emissions from land use, land use change and forestry (LULUCF). To reach its 2030 NDC target, South Korea will have to strengthen its climate policies considerably.

One of the main cross-sectoral policy instruments implemented to date is the Korea Emissions Trading Scheme launched in 2015 (ICAP, 2019b). To reduce sectoral emissions, South Korea introduced the GHG and Energy Target Management System (TMS) in 2012, a precursor to the Emissions Trading System (ETS) and which covered 60% of total emissions. The TMS still covers emitters consuming significant amounts of energy that are not covered by the ETS. As a result of TMS operations, 65 companies collectively reduced their emissions by 0.74 MtCO2e/year in 2015 compared to business-as-usual, equating to just over 0.1% of national total emissions (Republic of Korea, 2016).

The ETS covers 68% of national GHG emissions and nearly 600 companies from 23 sub-sectors (ICAP, 2019b) from steel, cement, petrochemicals, refinery, power, buildings, waste and aviation sectors. This includes all installations in the industrial and power sectors with annual emissions higher than 25 ktCO2e. The ETS system includes both direct and indirect emissions (emissions from electricity use).

The ETS cap for Phase II (2018–2020) was announced in July 2018 and is set to increase from 1,686 CO2e in Phase I (2015–2017) to 1,796 CO2e in Phase II. In this phase, 97% of the allowances is allocated for free and the remaining 3% will be auctioned. For Phase III (2021–2025), more than 10% of allowances are set to be auctioned (ICAP, 2019b). For comparison, 57% of the allowances will be auctioned over the current phase (Phase III: 2013–2020) of the EU Emissions Trading System (EU ETS) (ICAP, 2019a).

In the recently-adopted revised 2030 GHG roadmap, South Korea provides details on sector-specific reduction targets as well as policy measures to be further encouraged. For the building sector, the plan mentions strengthening permit standards for new buildings, promoting green renovation, identifying new circular business models, and expanding renewable energy supply. For the industry sector, the plan focuses on energy efficiency and industrial process improvement measures but also on the promotion of eco-friendly raw materials and fuel (Ministry of Environment, 2018). These planned measures are not considered in our current policy projections.

Energy supply

In 2017, the electricity and heat sector represented 54% of national CO2 emissions from fuel combustion. South Korea’s power generation increased fivefold over the period 1990–2017 and is dominated by coal-fired (45% in 2017) and nuclear generation (26% in 2017) (IEA, 2019c).

Motivated by air pollution, concerns over safety of nuclear power plants and climate change, President Moon Jae-In intends to reverse the policy direction of his predecessors by reducing reliance on nuclear and coal-fired power and increasing the share of renewable electricity.

The two framework policies for the energy supply sector are the third Energy Master Plan adopted in June 2019 for the period up to 2040 (MOTIE, 2019a) and the eighth 15-year Plan for Electricity Supply and Demand ( “the eighth Electricity Plan”) adopted in December 2017 for the period up to 2030 (MOTIE, 2017). The third Energy Master Plan has supposedly been developed in concert with the eighth Electricity Plan. As part of the country’s effort to tackle air pollution, the Government announced in November 2019 to retire six older coal-fired power plants by 2021, one year earlier than the initial plan (Reuters, 2019).

The third Energy Master Plan aims to increase the renewable electricity share to 20% by 2030, and 30–35% by 2040 - up from 3% in 2017 (IEA, 2019b) mainly by increasing the total renewable power capacity up to 129 GW. In contrast, the new Energy Master Plan neither sets targets for reducing the share of coal and nuclear power, nor a timeline for the phase-out of coal-fired power plants.

For 2030, the eighth Electricity Plan adopted in December 2017 set clear electricity mix targets, which confirmed the Moon administration’s intention to shift electricity generation away from coal and nuclear towards more renewables (Ministry of Trade, Industry and Energy, 2017a).

The eighth Electricity Plan would result in an electricity generation mix in 2030 based on 23.9% nuclear, 36.1% coal, 18.8% natural gas and 20% renewable energy (Ministry of Trade, Industry and Energy, 2017a). The significant difference with previous targets comes from the drop in natural gas-based generation (27% in a May, 2017 announcement) that is mostly compensated by the share of coal-based generation remaining very high (+14% compared to previous announcement from May 2017).

The eighth Electricity Plan also projected electricity capacity would peak in 2030 at 100.5 GW, 11% lower than the last. 2015, edition of the plan. The current power capacity surplus (generated by recently built coal-fired power plants) provides headroom for a rapid build-out of renewable energy generation (Webb and Kim, 2018) that also represents an opportunity for Korean companies to expand into the renewables market.

The plan also revised the estimated electricity demand for 2030 from 657 TWh (as defined in 2015) to 579.5 TWh (MOTIE, 2017). The CAT concludes, based on the assessment of recently published studies (Keramidas et al., 2018; APERC, 2019; Wood Mackenzie, 2019), that South Korea will remain short of reaching its targeted 20% renewable energy share by 2030.

The CAT does not quantify the impact of the eighth Electricity Plan in our analysis of South Korea’s current policy projections, due to the lack of laws or measures to implement it. The CAT estimates that if fully implemented (and taking into account the expected lower level of electricity demand highlighted above), these announcements would lead to about 20% reduction in electricity-related emissions in 2030 (refer to “Planned policy projection” on the graph above). This would result in a national total emissions level similar to the lower bound of the current policies scenario projection.

In terms of research and development of advanced technologies, the roadmap for hydrogen economy published in January 2019 (MOTIE, 2019b) sets a goal of 15GW power generation capacity for fuel cells by 2040.

With regard to specific policy instruments to support renewables, the Renewable Portfolio Standard (RPS), which replaced a previous feed-in tariff scheme, has been in place since 2012. The RPS scheme requires the 13 major electric utilities to meet annual generation targets from renewable and new energy, with the objective to increase renewable and “new energy” share to 10% in 2023 (Korea New and Renewable Energy Center, 2019). “New energy” technologies include fossil fuel-based technologies such as coal-fired Integrated Gasification Combined Cycle (IGCC) plants. Given its current status of technological development and global deployment, IGCC is likely to play a very minor role in future electricity generation. Our current policies scenario projections on renewable electricity is modest partly due to this unambitious RPS.


In 2017, the transport sector represented 17% of national CO2 emissions from fuel combustion (IEA, 2019c).

South Korea is the world’s fifth largest car manufacturing country (OICA, 2019) with major companies such as Hyundai and Kia headquartered there. In 2014, South Korea strengthened its light-duty vehicle emissions standard to 97 gCO2/km by 2020 (, 2019), which is comparable to the EU’s new standards (95 gCO2/km) (ICCT, 2019).

The number of annual electric vehicles (EVs) sales doubled to 33,000 from 2017 to 2018, accounting for over 2% of total new car sales in 2018 (IEA, 2019a). The South Korean Government is pushing the uptake of EVs, with a goal of having 430,000 EVs on the road by 2022 through subsidies and tax rebates (IEA, 2019a). The government is also investing in a programme to improve charging infrastructure (ibid.).

Based on the recently adopted revised 2030 GHG roadmap, South Korea intends to expand the supply of eco-friendly vehicles (including the supply of 3 million electric vehicles in 2030) (Ministry of Environment, 2018). The Korean Government also announced in January 2019 a roadmap for hydrogen economy, which sets goals of producing 6.2 million fuel cell electric vehicles and building 1,200 fuelling stations across the country by 2040 (MOTIE, 2019b).

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