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Maguire: Early heatwave in Asia signals potential summer pressure on coal and gas

The temperatures in many of Asia's biggest cities are above normal, prompting the use of air conditioners that consume a lot of energy. This is happening weeks before the peak of summer thermometer readings.

LSEG data shows that temperatures in a number of parts of China and Southeast Asia, including India, South Korea, Japan and South Korea, have recently risen well above long-term averages. They are expected to continue to rise for several weeks.

This sustained stretch of hot weather is likely to spur an increase in the use of air conditioners, which will?increase strain on generators who are responsible for supplying electricity.

In order to ensure a continuous supply of electricity, utilities in Asia will have to increase the use of coal- and gas-fired plants. This will cause a drawdown of coal and natural gas stocks, which will then need to be replenished when summer arrives.

The increased competition between Asian utilities for fuels that generate electricity could spark a new strength on the global coal and natural gas markets. These markets have been already roiled due to the U.S./Israeli conflict with Iran, and the resulting disruption of shipping through the Strait of Hormuz.

HEATING UP

Even though the northern hemisphere's official summer begins on June 1, millions of households in Asia have already experienced temperatures that are well above normal.

LSEG data show that since the middle of May the average temperature readings for Seoul, South Korea have been around 13% higher than the long-term mean. This has prompted "extreme heat alerts" by the Korea Meteorological Administration.

These?warnings will be triggered if the maximum daily perceived temperature exceeds 38 degrees Celsius (100,4 degrees Fahrenheit).

Since mid-May, Shanghai temperatures have been around 12% higher than normal. In Tokyo, readings have averaged?10% over normal.

In India, extreme heat has also been recorded in several towns. These readings were above 40 C (104 F), and people sought shelter inside air-conditioned buildings or homes.

Under Pressure

Power firms are already under pressure as they struggle to meet the increased demand for electricity.

The air-conditioning system is notoriously energy-intensive. However, it has become more popular in South and Southeast Asia due to the rising temperatures and humidity levels.

According to the International Energy Agency, the number of homes with air conditioning systems will increase from 36% in 2012 to 60% by the year 2050.

The surge in space cooling demand is likely to place an even greater strain on global power grids than the data centre boom. This is because the data centers are concentrated in regions that have more developed power systems and can accommodate more demand.

Power firms in Asia are struggling to meet demand for homes and businesses due to the current heatwave. Authorities in Vietnam, India, and the Philippines have all issued warnings about power output.

If the hot, humid weather continues into the peak summer season, we can expect to hear more warnings about power outages and requests for a reduction in power usage.

COAL-HEAVY POWER FOUNDATIONS

Over half of Asia's power is still generated by fossil fuel plants, despite the rapid growth in solar and wind farm generation in recent years.

In 2025, coal-fired power plants will generate around 52% (or more) of Asia's electricity. They'll remain the backbone for the region's energy system in the near future.

Around 10% of Asia's power is generated by natural gas plants. This share was expected to grow in the future, particularly?in wealthy economies that are closing down outdated coal plants.

The volatility of natural gas prices and the supply of liquefied gas (LNG), in recent years, has caused a slowdown in the development of gas-fired power plants. This means that coal will continue to be the main source of power in Asia, at least in the short term.

This means that coal import orders by Asian utilities are likely to increase as we approach the summer peak months. The price of coal should therefore rise, and this will put pressure on global and regional energy prices.

In Asia, there will also be an increase in demand for LNG and natural gas. This is especially true in areas with few alternatives to power and where the power consumption is expected to continue to rise due to temperatures above average.

This means that hot spells in Asia could further tighten the global coal and gas market this summer and worsen the energy shocks caused by the U.S.-Israeli war on Iran.

These are the opinions of the columnist, an author for.

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(source: Reuters)