Last week, international technology group ANDRITZ and energy storage company RAG Austria held a groundbreaking ceremony for Austria’s largest green hydrogen plant.

The 12.5 MW facility will help store surplus renewable energy generated in the summer for use during periods of high energy demand, particularly in winter, thereby enhancing energy security, supporting the expansion of renewable energy, and providing green hydrogen for industrial needs.

ANDRITZ will deliver the plant on an engineering, procurement, and construction (EPC) basis, taking full responsibility for project execution and commissioning. ANDRITZ’s scope of supply includes the complete green hydrogen production plant, as well as systems for hydrogen purification and compression.

The facility, which is scheduled to start operation at the end of 2026, will produce around 17 million m³ (more than 1,500 tons) of green hydrogen annually using solar power as its primary renewable energy source. Once commissioned, it will be the largest green hydrogen facility in Austria.

The project addresses one of the central challenges of the energy transition: storing renewable energy when it is abundant for use when demand is highest, while ensuring a continuous and reliable supply of indigenous green hydrogen for industry.

By converting surplus solar power generated in summer into green hydrogen, the plant will enable RAG Austria to create large-scale seasonal energy storage, making renewable energy available for electricity and heat production in winter.

In a press statement published on 8 July, ANDRITZ said the project further strengthens its position as a leading EPC partner for green hydrogen plants and supports the company’s strategic focus on technologies that enable the green transition.