Kagawa, Japan's self-styled udon prefecture, throws away thousands of tons of noodles a year. Two teams found wildly different uses for the waste: a small factory that turns it into electricity, and a professor who turns it into surprisingly tough paper grown by microbes, now made at a welfare facility for Marugame's traditional fans.
Waseda University and Fujitsu used quantum circuit learning (QCL) to predict the hardness of high-entropy alloys from only about 100 data points. We explain how a quantum approach tackles the small-data extrapolation problem that defeats conventional machine learning, where it sits against IBM and Google quantum efforts, and what it could mean for industrial materials discovery.
Hoku Energy K.K., the Japanese subsidiary of UK-based Hoku Infrastructure, will build Japan's first new-build 100% hydrogen mono-firing thermal power plant in Aomori Prefecture. The 106.6MW Daiichi Plant, awarded under Japan's 3rd Long-Term Decarbonized Power Source Auction, is scheduled to start operations in the early-to-mid 2030s. We compare it with hydrogen power efforts by Plug Power, MHI in Utah, Linde, Air Liquide, and South Korea's Doosan, and explain what it means for Japan's GX strategy.
Kawasaki Heavy Industries has begun pitching a technology that produces naphtha—the building block of plastics—from hydrogen instead of crude oil. Built on its commercial gas-to-gasoline plant in Turkmenistan, the proposal lands in the middle of a Japanese petrochemical crisis triggered by the Strait of Hormuz disruption.
In spring 2026, Honda wrote off roughly $10 billion in EV development. That same season, the final modules of ITER's 3,000-tonne central solenoid arrived in France, the UK's Pulsar Fusion ignited the first plasma inside a fusion rocket engine, and Kyoto Fusioneering moved to bring its integrated fusion fuel cycle pilot online in Canada. Stack the candidates in watt-hours per kilo and the picture is brutal: nothing beats gasoline in a form you can put in a car — except one category up, fusion, at 7.8 million times the density. Win the bet and you unlock effectively free electricity, working climate reversal, Mars in two months, lunar helium-3, and the solar system as a shipping route. Honda's mistake alone covers nearly 40 percent of ITER's budget. Maybe it's time to stop arguing about EVs and just go build the sun.
Between March and May 2026, Japan launched a wave of perovskite solar cell demonstrations across the country—world efficiency records, rice paddies, mountain tea fields, skyscraper windows, highway parking areas, and Toyota's Woven City. We unpack for international readers why everything is happening at once.
In 2012, the Sankei Shimbun reported a biofuel revolution centered on Enomoto algae, a hyper-growth Botryococcus discovered by Kobe University professor Taira Enomoto. Heavy-industry giant IHI joined biotech venture Neo-Morgan Laboratory to commercialize it, with then-CEO Tomohiro Fujita declaring he wanted to cut the price to one-tenth within ten years. Fourteen years later, the joint venture has dissolved, but the algae produced the world's first commercial flight to use SAF certified under ASTM D7566 Annex 7, and a Japanese-led 5-hectare facility in Malaysia is now the largest of its kind on Earth. Did the promise come true, or is the dream over?
Japan's Resonac (formerly Showa Denko) will switch its Kawasaki ammonia plant to 100% waste-plastic-derived hydrogen by April 2030, ending its reliance on natural gas reforming. The world's only long-running commercial gasification chemical recycling plant processes 70,000 tons of plastic waste annually to produce 120,000 tons of ammonia, with 80%+ CO2 reduction. Now backed by Japan's first CCfD-style price-gap subsidy. A circular alternative to urban mining.
Japan's data center power consumption is set to triple by 2034, with 60 percent concentrated in the Tokyo region. The government's answer is Watt-Bit Integration. Compared with Virginia, Ireland, and Singapore, Japan's regional-distribution-plus-decarbonization approach offers a distinctive third way to manage the AI-era electricity crunch.
An in-depth look at Japan's Hydrogen Arterial Plan (Suiso Daidomyaku Koso), unveiled by METI in April 2026. Six priority regions connected by arterial highways will receive concentrated investment of 15 trillion yen by 2040, with Toyota and Chiyoda starting mass production of electrolyzers in 2029. How Japan's strategy compares with the US IRA and the EU Hydrogen Bank.
Susumu Kitagawa of Kyoto University, joint winner of the 2025 Nobel Prize in Chemistry, has long advocated turning air itself into a resource through metal-organic frameworks (MOFs). His porous crystals can sort and capture CO2, water vapor and other molecules, putting Japan in direct conversation with players like Switzerland's Climeworks in the rapidly evolving direct-air-capture industry. Here is how a basic-science breakthrough from Kyoto could rewrite the economics of decarbonization.