Japan mulls seeking more gas-fired capacity in auction

Japan is considering further adding to gas-fired power generation capacity through its long-term zero emissions power capacity auction, given forecasts of rising electricity demand with the rapid adoption of artificial intelligence.

A working group under the trade and industry ministry Meti has proposed to look for an additional 4GW of gas-fired capacity over two fiscal years from April 2024-March 2026 via a clean power auction. This came after awarded gas-fired capacity reached 5.76GW in the first auction held in January, with the auction seeking about 6GW over three years.

The second auction — which Tokyo plans to hold in January 2025 — could seek 2.24GW, including the remaining 0.24GW in the first auction, for 2024-25 and another 2GW for 2025-26 in a third auction, the working group suggested. It has also proposed to extend the period within which awarded gas-fired projects have to start operations to eight years from the previous six years, given current resource shortages at plant manufacturers.

Japan has launched the auction system to spur investment in clean power sources by securing funding in advance to drive the country's decarbonisation towards 2050. This generally targets clean power sources — such as renewables, nuclear, storage battery, biomass, hydrogen and ammonia. But the scheme also applies to new power plants burning regasified LNG as an immediate measure to ensure stable power supplies, subject to a gradual switch from gas to cleaner energy sources.

These measures will not necessarily lead to increased demand for LNG, as Japanese import demand for the fuel would further come under pressure from expanded use of renewables and nuclear power. But the power sector will have to secure enough capacity to meet peak demand, especially with power consumption by data centres and semiconductor producers expected to continue to increase.

Japan's peak power demand in 2033-34 is forecast at 161GW, up from an estimated 159GW in 2024-25, as the country's digital push will more than offset the impact of falling population and further energy saving efforts, according to the nationwide transmission system operator Organisation for Cross-regional Co-ordination of Transmission Operator.

By Motoko Hasegawa