Energy & Environmental Technology

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.

On March 25, 2026, five partners, NYK Line, NTT Facilities, Eurus Energy, MUFG Bank, and the City of Yokohama, launched a world-first floating data center powered entirely by solar panels and batteries at Yokohama Port. How does this off-grid demonstration differ from the MOL-Hitachi used-ship concept, and what does it say about Japan's answer to the AI power crisis?

Japan's QST and NTT achieved a world-first: real-time communication under 100 microseconds for fusion plasma control. Learn how this JT-60SA breakthrough connects to IOWN and ITER.

DENSO and the University of Tokyo signed a 10-year partnership starting April 2026 centered on Dynamic Wireless Power Transfer (DWPT). Learn how charging EVs while driving could shrink batteries, cut costs, and reshape energy infrastructure — plus how Japan's approach compares to Sweden, Israel, and the US.

Sekisui Chemical has officially launched SOLAFIL, Japan's first commercially produced film-type perovskite solar cell. Lightweight and flexible enough for walls and curved surfaces, this next-gen technology positions Japan at the forefront of the global perovskite race against Chinese and European rivals.

AT Tokyo and elleThermo successfully demonstrated waste heat power generation using Semiconductor-Sensitized Thermal Cells (STC) in a live data center. This Science Tokyo-born technology generates electricity directly from low-grade heat at just 30-40°C — no temperature differential required. A look at how this could reshape data center energy efficiency amid soaring AI power demands.

Japanese fusion startup Helical Fusion announces the construction site for its demonstration device 'Helix HARUKA' Phase 1, while completing critical coil case components with precision manufacturer Ryoki Tool. Explore how Japan's unique helical stellarator approach and the HTS superconductor boom are reshaping the global fusion race.

Toyota announces mass production of water electrolysis systems by 2029, developed with Chiyoda Corporation. With 5MW domestic and 20MW international units, Toyota bets on hydrogen alongside EVs and hybrids. How Japan's multi-pathway strategy compares to the global EV-first approach.