Project Timeline

GrInHy's first public appearance

As part of the conference “Efficient and emission-free - expansion of hydrogen and fuel cell applications” the GrInHy system was available to interested participants.

The conference was held at the Hotel am See in Salzgitter on June 7 and was attended by almost 200 attendees from politics, administrative bodies, research organizations and associations.

Some presentations and further information can be found here.

Everything comes together

On Monday, 2017/05/29, the installation of both the RSOC and HPU container started at Salzgitter Flachstahl GmbH. Whereas sunfire’s container consists of almost 1,500 reversible Solid Oxide Cells, Boeing’s container with its pressure swing adsorption and compressor is responsible for the purity of hydrogen at 10 bar(g).

GrInHy at Hannover Messe 2017

The GrInHy project was presented at this year's Hannover Messe (Hanover Fair). One of the central elements at the booth of Salzgitter AG was a model that explained the basic principle of the GrInHy project and its implementation at the integrated iron-and-steel works of Salzgitter Flachstahl.

Together with an accompanying presentation, the GrInHy project was presented to experts of both the steel and hydrogen industry, to national and international politicians and to a broader audience.

Furthermore, we used the fair for a productive Project Coordination Meeting. Beside other things, the next steps regarding the operation of the reversible high-temperature electrolyzer were discussed between Sunfire, Salzgitter Mannesmann Forschung and Salzgitter Flachstahl.

System fabrication almost finalized

Sunfire finalized the first of two Hotboxes for the RSOC prototype. Each Hotbox contains 3 ICMs à 720 Solid Oxide Cells and all high temperature components to operate them (e.g. heat exchangers, after burner and reformers). In parallel, the second Hotbox, Coldbox (fluid supplies) and the container (housing, power electronics and BoP) are implemented and close the finalization.

If everything stays on schedule, the commissioning of the GrInHy system - including Boeing's Hydrogen Processing Unit - will start by the end of May 2017 at Salzgitter Flachstahl.

2nd Project Meeting

From 28th - 29th of March, Boeing Research and Technology Europe (BR&T-E) invited us to the 2nd Project Meeting in Madrid, Spain.

Besides other things, BR&T-E is responsible for designing, assembling and commissioning of the Hydrogen Processing Unit (HPU) in order to provide hydrogen of highest purity (99.999 %) to Salzgitter Flachstahl (SZFG).

During the period of the Project Meeting each Partner informed the consortium about their progress of work. One main outcome was the commitment of sunfire, BR&T-E and SZFG to start operating the GrInHy System in Salzgitter by July this year. This means, we are about six months ahead schedule with regard to the system operation.

In the end of meeting we still had time to have a look at the current state of the HPU (s. picture). Great work and thanks to everyone!

System layout frozen

Milestone 1,

GrInHy reaches the first milestone on-time.
Based on preliminary techno-economic data and operation profiles most promising business cases and their requirements were identified. Adapted to those needs, Sunfire developed several system layouts. Each of them has been evaluated by steady-state system simulations.

The layout with the best prospect has been chosen and already integrated into the 3D design of the rSOC system (see attached picture).

1st Project Meeting


Already eight months had passed since the project start in March this year. So it was time for the first Project Meeting at the Sunfire in Dresden, Germany. The meeting was mostly dedicated to the progress of work. In two parallel workshop sessions each partner shared their first results and put them up for discussion.

At the end of the meeting all participants had the chance to visit Sunfire’s production line and to assure themselves of the first components of the rSOC system that had already been manufactured.


Kick-Off Meeting


GrInHy’s Kick-off Meeting took place at the premises of Salzgitter Flachstahl GmbH on 20th-21st April and was attended by representatives of all the project partners as well as the Project and Financial Officers of the Fuel Cell and Hydrogen 2 – Joint Undertaking (FCH2-JU).

In addition to administrative and coordinative subjects various issues related to the implementation of the project were discussed. A highlight of the meeting was certainly the visit of the hot-dip galvanizing line II as one of the hydrogen consumers of the integrated iron and steel works.