What is the significance of Japan's first green ammonia plant becoming fully operational, and what key technologies enable its operation?

Japan's first green ammonia plant, funded by NEDO and built/operated by JGC Holdings, has achieved full commercial production — marking a milestone as the nation’s inaugural facility for green ammonia. Its operation relies on KBR’s licensed K-GreeN green ammonia process technology, alkaline electrolyzers supplied by Asahi Kasei to produce green hydrogen, renewable electricity from an adjacent photovoltaic power station and the grid, and nitrogen delivered via tanker trucks. The plant integrates a jointly developed control system by JGC and Asahi Kasei with KBR’s advanced process control and patented equipment, enabling fully dynamic operation and rapid, stable response to fluctuations in solar power supply. As stated by KBR’s Global Senior Vice President Harry Ravindran, the project demonstrates that renewable-based reliable ammonia is no longer futuristic — it is already here.

How much green ammonia does the plant produce daily, and what is its primary intended application?

The plant produces 4 tons of green ammonia per day at full capacity, and this output is slated primarily for use in flue gas denitrification (DeNOx) at power plants — a critical application for reducing nitrogen oxide emissions from fossil-fueled generation. This purpose aligns with Japan’s broader strategy to decarbonize thermal power while maintaining energy security and grid stability during the transition to renewables.

Japan's First Green Ammonia Plant Fully Operational

May 19, 2026

Japan's first green ammonia plant has commenced full commercial production using KBR technology and Asahi Kasei electrolyzers. The facility produces 4 tons daily for power plant denitrification, powered by renewable energy.

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2026-05-19

Japan's First Green Ammonia Plant Fully Operational

2026-05-29

JGC Launches Japan's First Green Ammonia Plant

Japan's First Green Ammonia Plant Fully Operational

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