LNG inventories at Japan's main power utilities fell for the second consecutive week during the week to 6 July, as hotter than normal weather boosted electricity demand for cooling and increased gas-fired generation.
The utilities held 2mn t of LNG inventories on 6 July, down by 7pc from a week earlier and by 12pc from the recent high of 2.27mn t on 22 June, according to a weekly survey by the trade and industry ministry Meti. But the latest volume was almost in line with the 1.99mn t recorded for 7 July 2024.
A large part of Japan has experienced unusually hot weather since the middle of June, with the country's environment ministry, together with the Japan Meteorological Agency, occasionally issuing heatstroke alerts. This boosted the country's power demand to an average of 113GW during the 30 June-6 July period, up by 10pc on the week and by 7pc from a year earlier, according to the Organisation for Cross-regional Co-ordination of Transmission Operators (Occto).
Firm electricity demand encouraged power producers to raise gas-fired output by 9.1pc on the week to an average of 36GW during the week to 6 July, the Occto data showed. Coal- and oil-fired generation also rose by 22pc to 31GW and 49pc to 1GW, respectively.
Generation economics for Japan's gas-fired power plants improved with higher wholesale electricity prices, which was supported by stronger bidding demand. Margins from a 58pc-efficent gas-fired unit running on spot LNG averaged ¥2.82/kWh ($19.18/MWh) across 30 June-6 July, up from the previous week's ¥0.88/KWh, based on the ANEA — the Argus assessment for spot LNG deliveries to northeast Asia — and Japan Electric Power Exchange' systemwide prices. The 58pc spark spread using oil-priced LNG supplies also rose by 35pc to an average of ¥3.90/kWh.
