JERA backs Quaise Energy as Japan hunts geothermal baseload alternative

JERA backs Quaise Energy as Japan hunts geothermal baseload alternative Japan's largest power generator has taken a stake in US drilling startup Quaise Energy, signalling intent to reduce a structural reliance on imported LNG. JERA Co. invested in Quaise Energy through its corporate venture arm on Wednesday (2026-07-15), becoming a backer of the Houston-based startup developing millimetre-wave drilling to unlock superhot geothermal reservoirs far below the reach of conventional rigs. The two companies said they would explore deploying the technology in Japan.⁶ The move came eight days after Quaise announced the first tranche of a Series B round totalling $134 million on Tuesday (2026-07-07), funding earmarked for its first commercial superhot geothermal plant in central Oregon.⁵ For JERA — formed from the power units of Tokyo Electric and Chubu Electric, and among the world's largest LNG purchasers — the strategic logic is plain. Japan meets approximately 98% of its domestic natural gas demand through LNG imports, and natural gas accounts for around 32% of the country's power generation. The power sector absorbs between 55% and 65% of total gas consumption, leaving Japan's grid heavily exposed to shipping routes and spot markets.¹ Japan imported 66.3 million tonnes of LNG in 2025, down 1.5% year-on-year, retaining second place globally after China. Australia supplied the largest volume at 26 million tonnes, followed by Malaysia at 10 million tonnes and Russia at 5.8 million tonnes under a sanctions carve-out covering the Sakhalin-II project in which Mitsui and Mitsubishi hold stakes. Roughly 6% of supply transits the Strait of Hormuz.¹ Asian LNG spot prices, assessed on the JKM benchmark, stood at $19.93 per million British thermal units as of Thursday (2026-07-16). [live prices] The appeal of superhot geothermal for an island economy is straightforward: it generates continuously, needs no fuel deliveries, and produces no direct emissions. The Clean Air Task Force has estimated that 13% of North America's land holds superhot potential below 12.5 kilometres, and that tapping just 1% could yield 7.5 terawatts of capacity, according to an Economist analysis published in May 2026.³ The technical barriers are real. Previous attempts to harness superhot rock — in Iceland, where supercritical fluids lie only 2 to 3 kilometres underground — ran into difficulties that ended those projects, the Economist reported. Quaise's system replaces drill bits with high-powered millimetre-wave energy to vaporise rock at depth, but the company has not yet demonstrated the full process commercially.³ Japan's energy transition has been slower than in comparable economies. Wind projects face earthquake-proofing requirements equivalent to those for high-rise buildings, land-use rules restrict solar on abandoned farmland, and weak transmission infrastructure limits the movement of power from generation to demand centres, according to the Economist's reporting from May 2026. Nuclear provides only around 9% of Japan's power generation despite the post-Fukushima restart programme.^2,1 Japan also sits on the Pacific Ring of Fire with significant geothermal resources, but conventional shallow development has historically been constrained by national park boundaries and local opposition near hot-spring communities. Superhot drilling sidesteps those constraints by targeting depths where existing surface protections do not apply — though it raises a different set of land access and permitting questions specific to each site.⁶ Regional interest in geothermal baseload is not limited to Japan. Baseload Power Taiwan and state-owned CPC Corporation signed a memorandum of understanding in June 2026 to accelerate geothermal development, with initial focus on the Tuchang project in Yilan County, suggesting broader appetite across East Asia for power sources that do not depend on LNG cargoes.⁴ JERA's investment is at an early stage, and the path from an Oregon demonstration to a commercial site in Japan involves regulatory, geological and cost hurdles that no one has quantified yet. How far that conversation advances depends first on what Quaise proves in central Oregon — the drilling system still needs to work at commercial depth before any deployment discussion in Asia moves beyond the exploratory.^6,5,3