Mions (France) -- RotH2, the expert in very high pressure gas storage solutions, announces the signing of an order with Atawey, a specialist in hydrogen refueling stations for heavy mobility. This order covers 330 50-liter Type II - 1000 bar bottles, and confirms the commercial acceleration of the very high pressure solutions developed by RotH2. This collaboration between two companies in Auvergne-Rhône-Alpes also illustrates the dynamism of the regional hydrogen sector.

 

A century-old know-how redirected towards hydrogen

 

Based in Mions in the suburbs of Lyon, RotH2 is the only French company to master the technique of forging by hot-flow. This industrial method makes it possible to heat and shape steel tubes in successive passes, in order to constitute seamless reservoirs, bearing extreme pressures.

 

Historically focused on the scuba diving bottle and accumulator body markets, RotH2 has diversified its business in 2021 towards green gas storage and in particular hydrogen, while retaining its business and its historical customers.

 

This transition was accompanied by a modernization of the production tool and the acquisition of new machines, including a filament winding machine.

 

Type II 1000 bar : a unique technological advance in France

 

These investments allowed RotH2 to become, at the end of 2023, the first and only French company to manufacture certified type II storage tanks supporting up to 1000 bar of pressure.

 

To create these tanks, RotH2 reinforces the steel base of its bottles with composite, thanks to the filamentary winding technique. The advantages of these type II 1000 bar tanks are multiple: in equal dimensions, they make it possible to store more gas, to accelerate filling and refueling by optimizing the gas transfer.

 

The tanks are assembled in a rack with dedicated maintenance valves, forming complete and immediately operational assemblies to power hydrogen charging stations. The challenge today is the gradual integration of these new solutions, which are very high pressures by the sector.

 

A commercial dynamic confirmed by several orders

 

The commission of Atawey, French flagship of hydrogen stations, testifies to the appropriation of very high pressure 1000 bar solutions by the key players in the sector. This collaboration between two industrialists of Auvergne-Rhône-Alpes, RotH2 in Mions (Rhône) and Atawey in Savoie, also highlights the dynamism of the regional hydrogen sector.

 

In concrete terms, this control from Atawey to RotH2 is for 330 bottles of 50 liters of type II 1000 bar, divided into nine racks, with maintenance valves. These racks will power Atawey’s hydrogen stations in Belgium, where the company is deploying new stations dedicated to heavy mobility.

 

This order is part of a broader dynamic for RotH2: this summer, RotH2 had also delivered a rack of 22 bottles 1000 bar at the University of Western Cape (South Africa), as part of the HySA program, as well as two racks of 16 bottles 1000 bar in ARPA, Spain. So many orders that illustrate the rise of very high pressure applications, in France and internationally.

 

"This Atawey command marks an important milestone in the development of RotH2. It confirms our technological and industrial choices in the very high pressure. It also shows that the market is ready for these solutions, which are intended to become widespread in the coming years as they represent a major operational advance. Finally, we are particularly proud of the confidence of Atawey, a leading European player, and to contribute together to the influence of the French and regional hydrogen sector,” said Quentin MARSAC, Managing Director

 

ABOUT ROTH 2

 

Expert in very high pressure gas storage solutions, ROTH 2 is the only French company to produce tanks supporting 1000 bar of pressure guaranteeing the highest level of safety for storage.

 

In complementarity with its historic high-pressure gas storage activities for industries and energy, the company is developing in France and internationally in hydrogen storage for energy storage. To do this, ROTH 2 will rely on three strong skills: its capacity for technological innovation, the quality of its industrial tool and its ability to meet the needs of its customers, or even to anticipate the evolutions of its markets.

 

Located in Mions, in the Lyon metropolis, the ROTH 2 plant produces 20 000 steel tanks per year and employs 50 people.

 

Source： RotH2 Atawey