Despite consuming 143 million tonnes of coal annually and importing over 98% of it, South Korea is undergoing a monumental energy transition, navigating a complex path from fossil-fuel dependence towards nuclear expansion and a renewable future.
Key Takeaways
- In 2022, South Korea's coal consumption reached 143 million tonnes, accounting for 42% of total primary energy supply
- South Korea imported 98.5% of its coal needs in 2022, totaling 140.8 million tonnes from Australia (71%), Indonesia (14%), and Russia (8%)
- LNG imports to South Korea hit 48.2 million tonnes in 2022, making it the world's third-largest importer after Japan and China
- In 2021, nuclear power generated 92.2 TWh, representing 24.5% of total electricity production in South Korea
- South Korea operates 24 nuclear reactors with total capacity of 23.5 GW as of 2023
- APR1400 reactors at Barakah in UAE are South Korea's first export, with four units totaling 5.6 GW, operational since 2021
- Renewable energy capacity reached 28 GW in 2022, with solar at 22 GW and wind 2.1 GW onshore/offshore
- Solar PV installed capacity grew 64% to 24.4 GW in 2023, driven by RPS targets
- Offshore wind target 12 GW by 2030, with 1st phase 8.2 GW tendered in 2021
- Total final energy consumption in South Korea was 229 Mtoe in 2022, down 2% from 2021
- Industry sector consumed 54% of total energy in 2022, primarily steel and chemicals
- Transport energy use 28 Mtoe in 2022, 85% oil products, EVs at 0.4% share
- Total electricity generation was 593 TWh in 2022, with peak demand 94.1 GW in August
- Transmission losses 3.2% of generation in 2022, KEPCO grid covers 99.9% population
- Smart grid investments KRW 8 trillion by 2023, with 1.2 million smart meters installed
South Korea depends heavily on imported energy but is accelerating its shift to nuclear and renewables.
Electricity Sector
1Total electricity generation was 593 TWh in 2022, with peak demand 94.1 GW in August
Verified2Transmission losses 3.2% of generation in 2022, KEPCO grid covers 99.9% population
Verified3Smart grid investments KRW 8 trillion by 2023, with 1.2 million smart meters installed
Verified4Electricity exports to North Korea via HVDC link averaged 0.1 TWh annually pre-2016 suspension
Directional5Pumped storage hydro 7 GW capacity, providing 70% of ancillary services
Single source6Retail electricity price 0.12 USD/kWh in 2022, among lowest in OECD
Verified7Carbon capture utilization storage (CCUS) pilot at Taean power plant captures 1 MtCO2/year since 2017
Verified8Energy mix policy 9th Basic Plan targets 21.6% LNG, 36.9% coal, 30% nuclear, 21.6% renewables by 2034
Verified9Coal phase-down to 28.6% electricity share by 2034 from 36.5% in 2022
Directional10Interconnection capacity with China via HVDC 3 GW planned by 2026
Single source11Battery ESS auctions 2 GW in 2023 for frequency regulation
Verified12Wholesale electricity price avg KRW 140/kWh in 2023 peak summer
Verified13Microgrids 50 sites total 100 MW by 2023, Jeju island lead
Verified14Coal plant retirements 4 GW by 2026 under phase-out
Directional15Demand response program reduced peak 2 GW in 2022 summer
Single source16Grid digitalization AMI meters 4 million by 2023, 10% households
Verified17Electricity tariffs raised 20% to KRW 93/kWh residential avg 2023
Verified18Renewable portfolio standard compliance 95% utilities 2023
Verified19Frequency control ancillary services 2 GW procured via auctions
Directional20Substation automation 80% digitalized by 2023
Single source21HVDC lines 5 circuits total 3,000 km for renewables integration
Verified22Cyber security incidents power grid 12 in 2022, all mitigated
VerifiedElectricity Sector Interpretation
South Korea’s grid hums with efficient, government-directed precision, deftly balancing nuclear loyalty and a slow coal divorce while flirting with high-tech solutions and worrying about the neighbor's lights, all to keep the power cheap, the lights on, and the digital future charged.
Energy Consumption
1Total final energy consumption in South Korea was 229 Mtoe in 2022, down 2% from 2021
Verified2Industry sector consumed 54% of total energy in 2022, primarily steel and chemicals
Verified3Transport energy use 28 Mtoe in 2022, 85% oil products, EVs at 0.4% share
Verified4Residential energy consumption per capita 1.8 toe in 2022, with district heating 40%
Directional5Commercial sector energy demand grew 3% to 18 Mtoe in 2022, driven by services
Single source6Total electricity consumption 555 TWh in 2022, up 1.2% YoY
Verified7Energy intensity (toe per $1000 GDP) improved to 0.12 in 2022 from 0.13 in 2021
Verified8LPG consumption 12.5 million tonnes in 2022, mainly for petrochemicals and heating
Verified9EV charging demand projected to reach 10 TWh by 2030, currently 0.5 TWh in 2022
Directional10Total primary energy demand 281 Mtoe in 2022, fossil 78%
Single source11Steel industry energy use 40 Mtoe in 2022, 70% coal-based
Verified12Road transport 90% of sector energy, avg fuel economy 6.5 L/100km
Verified13Building energy codes cover 40% floor space, efficiency improved 20% since 2017
Verified14District heating covers 70% urban buildings, 15% total energy
Directional15Electricity per capita 10.8 MWh in 2022, top 10 globally
Single source16Final energy by fuel: oil 40%, electricity 23%, gas 18% in 2022
Verified17Semiconductor sector electricity 20 TWh in 2022, 4% total demand
Verified18Industrial energy efficiency improved 2.5% YoY to 35% in 2022
Verified19Air transport fuel 5 Mt in 2022, jet A1 95%
Directional20Household electricity 120 kWh/month avg, AC peak summer 30%
Single source21Coke consumption 70 Mt for steelmaking 2022
Verified22Final electricity demand industry 280 TWh, services 100 TWh 2022
Verified23Natural gas consumption industry 40 bcm, residential 10 bcm 2022
Verified24Shipbuilding energy intensity down 15% since 2015 to 0.8 toe/ship
DirectionalEnergy Consumption Interpretation
South Korea's energy landscape is a paradoxical mix of industrious might—where steel and chemicals gulp over half the nation's power—and emerging green shoots, as seen in its world-leading electricity use per capita and improving efficiency, yet its transport sector remains stubbornly married to oil with EVs barely a blip on the radar.
Fossil Fuels
1In 2022, South Korea's coal consumption reached 143 million tonnes, accounting for 42% of total primary energy supply
Verified2South Korea imported 98.5% of its coal needs in 2022, totaling 140.8 million tonnes from Australia (71%), Indonesia (14%), and Russia (8%)
Verified3LNG imports to South Korea hit 48.2 million tonnes in 2022, making it the world's third-largest importer after Japan and China
Verified4Crude oil imports stood at 817 million barrels in 2022, with Saudi Arabia supplying 22%, UAE 15%, and US 12%
Directional5Coal-fired power generation contributed 36.5% of total electricity in 2022, down from 41.6% in 2021 due to carbon reduction efforts
Single source6South Korea's refinery capacity reached 3.1 million barrels per day in 2023, operated by GS Caltex, SK Energy, and S-Oil
Verified7Natural gas share in primary energy mix was 15.2% in 2022, up 1.5% from previous year
Verified8Coal production domestic was only 0.7 million tonnes in 2022, covering less than 0.5% of consumption
Verified9Oil product consumption was 2.45 million b/d in 2022, with gasoline at 0.45 mb/d and diesel 0.92 mb/d
Directional10South Korea's strategic petroleum reserves held 147 days of net imports in 2023, exceeding IEA minimum of 90 days
Single source11In 2022, coal imports cost USD 38 billion, 25% of total energy import bill
Verified12Oil import bill USD 102 billion in 2022, up 50% due to price surge
Verified13LNG regasification capacity 50 million tonnes/year across 5 terminals in 2023
Verified14Domestic gas production negligible at 0.01 bcm in 2022, 100% import dependent
Directional15Coal plant efficiency average 38% in 2022, with supercritical units at 42%
Single source16SK Innovation refinery in Ulsan processes 840,000 bpd, largest in Korea
Verified17Bunker fuel demand 15 million tonnes in 2022 at Busan port, world's 2nd busiest
Verified18Petrochemical feedstock from naphtha 18 million tonnes in 2022
Verified19In 2023, coal-fired capacity 57 GW, 40% of total 144 GW installed
Directional20LNG-fired capacity 42 GW CCGT, load factor 55% in 2022
Single source21Oil-fired peaking plants 5 GW, used <1% time
Verified22Coal mine methane emissions 1.2 MtCO2eq avoided via utilization 2022
Verified23Flaring gas volume 0.1 bcm in 2022, low globally
Verified24Bio-coal blending pilots at 10% in 2 plants, reducing imports 0.5 Mt
DirectionalFossil Fuels Interpretation
South Korea runs a high-performance economy on a shockingly precarious energy diet, importing virtually all the fuel for its voracious industrial appetite while walking a tightrope between energy security, staggering costs, and its ambitious carbon reduction pledges.
Nuclear Power
1In 2021, nuclear power generated 92.2 TWh, representing 24.5% of total electricity production in South Korea
Verified2South Korea operates 24 nuclear reactors with total capacity of 23.5 GW as of 2023
Verified3APR1400 reactors at Barakah in UAE are South Korea's first export, with four units totaling 5.6 GW, operational since 2021
Verified4Nuclear fuel cycle includes domestic enrichment feasibility studies, with current reliance on imports for 100% of uranium
Directional5Shin Kori 5&6 units under construction, each 1400 MWe, expected completion 2025, boosting capacity by 2.8 GW
Single source6Nuclear share targeted to rise to 30% by 2030 under revised energy plan, from current 25%
Verified7KHNP operates all nuclear plants, with lifetime extension for older units like Kori 1 from 40 to 60 years approved
Verified8Small Modular Reactor (SMR) development i-SMR 170 MW by KHNP, demonstration by 2030
Verified9Nuclear R&D budget was KRW 700 billion in 2023, focusing on Gen IV reactors
Directional10Decommissioning fund for nuclear plants accumulated KRW 1.2 trillion by 2022
Single source11Nuclear capacity factor averaged 82% in 2022 for operable reactors
Verified12Wolseong NPP units 1-4 total 2.8 GW, Hanul renamed, license extended
Verified13Uranium imports 1,200 tonnes U in 2022, from Canada 40%, Kazakhstan 30%
Verified14Pyroprocessing R&D at KAERI for spent fuel, capacity 10 tonnes/year demo
Directional15Shin Hanul 3&4 under construction, 2.8 GW total, start 2027
Single source16Nuclear export bids for Czech 4 units 4.4 GW APR1400 won in 2024
Verified17Radiation exposure public dose 1.9 mSv/year in 2022, below global avg 2.4
Verified18SMR export deal with Poland for 720 MWe discussed 2023
Verified19Nuclear electricity production up 5% to 97 TWh in 2023 despite outages
Directional20HANARO research reactor 30 MW, supplied isotopes 20% domestic needs
Single source21Spent fuel storage wet pools full, dry cask interim storage 2,000 tons started 2023
Verified22Generation 4 reactor prototype SFR 150 MWe design complete 2023
Verified23Nuclear skilled workforce 20,000, training academy graduates 500/year
Verified24Radiation monitoring stations 250 nationwide, real-time data public
DirectionalNuclear Power Interpretation
South Korea, fueled by its own ambitious atomic orchestra, is expertly conducting a global nuclear symphony—from building reactors at home and abroad to chasing fuel independence—yet still faces the delicate encore of managing its spent fuel and securing its uranium supply.
Renewable Energy
1Renewable energy capacity reached 28 GW in 2022, with solar at 22 GW and wind 2.1 GW onshore/offshore
Verified2Solar PV installed capacity grew 64% to 24.4 GW in 2023, driven by RPS targets
Verified3Offshore wind target 12 GW by 2030, with 1st phase 8.2 GW tendered in 2021
Verified4Hydropower capacity stable at 6.9 GW, generating 24 TWh annually (5% of electricity)
Directional5Bioenergy capacity 0.8 GW, mostly waste-to-energy plants, contributing 1.2% renewables
Single source6Green hydrogen strategy aims for 5 GW electrolyzer capacity by 2030
Verified7RPS mandate requires 10% renewables in electricity by 2023, achieved at 8.9%
Verified8Floating solar projects total 2 GW planned, with Yeongheung 1.2 GW largest in development
Verified9Geothermal potential estimated at 1 GW, with pilot plants at 0.05 GW operational
Directional10Energy storage systems (ESS) for renewables reached 6.2 GW by 2023, mostly lithium-ion
Single source11Wind capacity added 1.1 GW in 2023, total onshore 1.8 GW offshore 0.3 GW
Verified12Solar auctions awarded 3.5 GW in 2023 at avg 3.5 US cents/kWh
Verified13Azalea offshore wind 480 MW COD 2023, first commercial scale
Verified14Biofuel blending E2 gasoline standard since 2022, consumption 0.8 Mt ethanol equiv
Directional15Hydrogen mobility 200 FCEVs and 12 stations in 2022, target 40,000 by 2030
Single source16REC trade volume KRW 5 trillion in 2023 under RPS
Verified17Floating offshore wind testbed 20 MW Ulsan operational 2024
Verified18Agrivoltaics solar 100 MW installed by 2023, policy support expanded
Verified19Renewables curtailment 0.5% in 2022, managed via ESS integration
Directional20Solar self-consumption rooftop 5 GW cumulative 2023, net metering policy
Single source21Wind turbine manufacturing domestic 80% localization, Doosan Enerbility lead
Verified22Green bonds issued KRW 10 trillion for RE 2022-2023
Verified23Energy from waste incineration 4 TWh, 200 plants total 3 GW thermal
Verified24Ocean energy testbed 1 MW wave Ulsan
Directional25RE target raised to 32% TPES by 2030 in 10th plan draft 2024
Single source26Corporate PPAs 2 GW solar/wind signed 2023 by Samsung, SK
VerifiedRenewable Energy Interpretation
South Korea's energy transition is a meticulously calculated solar sprint with a side of offshore wind ambition, held together by policy glue and a hopeful glance at hydrogen, proving you can build a new grid one gigawatt at a time.
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