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Hot South Korean summer drives surge in aircon sales, power demand

South Korea's hot summers are driving a surge in demand for air conditioners, and the electronics giants of the country are promoting home upgrades with power-saving technologies. Samsung Electronics domestic home AC sales increased by 50% during the first quarter 2025, ending in March, compared to last year's same period. LG Electronics also saw a 60% increase in domestic sales over the same time frame ahead of an expected hotter summer. The sales boom is despite the fact that the government estimates 98% of the 51 million households already have air conditioners. Companies are wooing consumers with improved cooling, energy efficiency and AI-powered models.

Samsung said in a press release that it expects the positive trend in air conditioner sales worldwide to continue. This is due to an increase in demand for high-efficiency and eco-friendly products as a result of climate change.

LG expects to see its air conditioner sales continue to grow this year, as consumers replace their old units with newer models that are more energy efficient.

The temperatures in Seoul reached record highs during the summer of this year, with a temperature of 37.8 degrees Celsius (100,4 Fahrenheit) at the beginning July, just before August, which is traditionally the hottest month. AC sales are being driven by longer, stronger heatwaves and cooling will account for much of the growth in global power demand in the next decade.

According to the International Energy Agency, cooling systems will require more power globally by 2035. This is a rise of around 1,200 terawatt-hours, which is greater than an increase of 800 TWh in data centre demand.

Renub Research projects that the global air conditioner market will grow by an average 6.3% per year through 2032, to reach $257.2 billion. According to the IEA, 50% of homes will have air conditioners in 2035 compared to 36% in 2022.

According to their respective websites, LG's air conditioner production line was operating above capacity this year while Samsung began working at full capacity 10 day earlier than usual.

The South Korean energy ministry warned that record electricity use was straining the grid. Peak demand could reach a record of 97.8 gigawatts (GW) between 5 pm and 6 pm on weekdays during the second week in August, mostly due to AC usage.

South Korea has been forced to increase its power reserves and import coal because of the sticky nature of the air conditioning power demand. It also put on standby power plants that were not being used. Last year, residential air conditioning accounted for 16% of South Korea's annual electricity demand. This is up from 14% prior to the pandemic. The government is also providing energy vouchers to low-income families and lowering tariffs. (Reporting from Sudarshan Varadhan in Singapore and Heekyong Ya in Seoul).

(source: Reuters)