Fraun­hofer demon­strates Data Spaces in the ener­gy sec­tor using the exam­ple of green hydrogen

The dig­i­ti­za­tion of the ener­gy tran­si­tion aims to make infor­ma­tion from a large num­ber of decen­tral­ized pow­er gen­er­a­tors such as wind ener­gy or PV plants and loads usable for effi­cient oper­a­tion of the pow­er sys­tem. This huge demand for infor­ma­tion requires new con­cepts on how to exchange data effi­cient­ly and pre­serve the dig­i­tal sov­er­eign­ty of com­pa­nies. With a demon­stra­tor for the pro­duc­tion of green hydro­gen, four Fraun­hofer Insti­tutes have now shown how this could be imple­ment­ed in the future with the con­cept of an Inter­na­tion­al Data Space. The project con­tent will be visu­al­ized in a video and pre­sent­ed in an Expert Web Ses­sion on May 27.

The frame­work archi­tec­ture of the Inter­na­tion­al Data Spaces (IDS) was devel­oped by the Fraun­hofer-Gesellschaft togeth­er with sev­er­al indus­tri­al part­ners and imple­ment­ed in con­crete soft­ware mod­ules. The door to the Data Space is an IDS con­nec­tor that imple­ments the rules and process­es that apply in the Data Space. These rules include con­di­tions for the use of data, com­pli­ance with which can also be tech­ni­cal­ly imple­ment­ed and tracked.

In addi­tion, there are cen­tral ser­vices such as the cer­ti­fi­ca­tion of par­tic­i­pants, the pro­vi­sion of search engines for data and meta-data as well as fur­ther func­tions for the doc­u­men­ta­tion of trans­ac­tions (clear­ing house) or for the pro­vi­sion of appli­ca­tions from an app store. The func­tions of the IDS mod­ules fit into the con­cept of the Euro­pean GAIA‑X ini­tia­tive and thus already enable the entry into the future Euro­pean data space.

Ener­gy Data Space as a tool for the dig­i­tal­iza­tion of the ener­gy transition

“The tech­nol­o­gy of Data Spaces offers great poten­tial for use in the ener­gy indus­try,” explains Volk­er Berk­hout, from Fraun­hofer IEE, who led the sub-project ‘EnDa­Space’. “In var­i­ous areas, exist­ing infor­ma­tion can­not be used because com­pa­nies fear dis­ad­van­tages from shar­ing this data. In the future, we want to use an Ener­gy Data Space to open doors to col­lab­o­ra­tion that have been closed until now.”

In the ‘EnDa­Space’ project, data from the 8 MW wind tur­bine at Fraun­hofer IWES in Bre­mer­haven was used as the basis for gen­er­at­ing green hydro­gen at the Fraun­hofer IEE Pow­er-to-Gas Research Cen­ter in Bad Hers­feld. From the data of the wind tur­bine togeth­er with weath­er and elec­tric­i­ty mar­ket infor­ma­tion, Fraun­hofer IOSB-AST gen­er­at­ed a sched­ule for the respec­tive fol­low­ing day, with which wind pow­er can be used for hydro­gen pro­duc­tion. The oper­a­tion man­age­ment strate­gies of elec­trol­y­sers in the ener­gy sys­tem become rel­e­vant with increas­ing use of hydro­gen, both for the eco­nom­ic effi­cien­cy of the projects and for the oper­a­tion of the over­all system.

Com­mu­ni­ca­tion between the plants and sys­tems takes place via an Ener­gy Data Space. In this data room, sys­tems exchange data accord­ing to agreed rules and under cer­tain con­di­tions. The con­cept of Inter­na­tion­al Data Spaces allows all actors to make self-deter­mined deci­sions about the use of their data, thus enabling their dig­i­tal sovereignty.

“For us, the suc­cess­ful demon­stra­tion project for an exem­plary use case is the pre­lude to the design of the Ener­gy Data Space for a wide vari­ety of use cas­es in the ener­gy indus­try,” the project part­ners agree in their per­spec­tive conclusion.

Data from 8 MW wind turbine

The data source for the demon­stra­tor was the 8 MW wind tur­bine at Fraun­hofer IWES in Bre­mer­haven. The oper­a­tional data used in the project were first aggre­gat­ed for dif­fer­ent time peri­ods. Using a REST inter­face, the data was linked to the con­nec­tor and cre­at­ed as a data resource in the Ener­gy Data Space.

“With the knowl­edge and expe­ri­ence we have built up in the project, we will be able to sup­port oth­er plant oper­a­tors or soft­ware providers in the future in prepar­ing wind ener­gy data for Data Spaces and mak­ing it avail­able,” explains Juliane Schnei­der, research asso­ciate at Fraun­hofer IWES, who led the work package.

Timetable opti­mi­sa­tion eco­nom­i­cal and network-serving

In the ener­gy man­age­ment soft­ware EMS-EDM PROPHET® of the Fraun­hofer IOSB-AST, the infor­ma­tion on the oper­a­tion of the wind tur­bine con­verges with the wind fore­casts and the elec­tric­i­ty mar­ket prices. From this, the soft­ware cal­cu­lates a sched­ule that guar­an­tees that the elec­trol­y­sis is only oper­at­ed when wind pow­er is also avail­able and the elec­tric­i­ty price is below a thresh­old to be defined at which elec­tric­i­ty feed-in is more advan­ta­geous than elec­trol­y­sis. In addi­tion, para­me­ters for plant oper­a­tion are tak­en into account in the sched­ule cal­cu­la­tion, such as the dura­tion for the change of states dur­ing switch-on process­es or in stand­by mode. In fur­ther work, the opti­mum oper­at­ing mode of the elec­trol­yser is also to be inte­grat­ed into the mod­els in the future.

“We expect this issue to become increas­ing­ly impor­tant in the future,” says Carsten Frey, research asso­ciate at Fraun­hofer IOSB-AST. “We will also use this as a basis for devel­op­ing new bal­anc­ing group man­age­ment func­tions with­in our EMS-EDM PROPHET® ener­gy mar­ket suite.”

Green hydro­gen

A data for­mat was agreed upon for the use of the timetable and the data flow from the con­nec­tor to the plant was designed and imple­ment­ed. The sched­ule is first writ­ten into a data­base and from there read out and imple­ment­ed by the elec­trol­y­ser’s plant con­trol sys­tem. At the end of Feb­ru­ary, the test run in real oper­a­tion took place at the Pow­er-to-Gas Research Cen­ter of Fraun­hofer IEE in Bad Hers­feld and was successful.

“The cou­pling of wind ener­gy and hydro­gen off­shore and onshore will be essen­tial for the pro­duc­tion of green hydro­gen” expects Bernd Krautkre­mer, head of the research cen­tre in Bad Hers­feld. “It is often cru­cial that the dif­fer­ent fur­ther use of the hydro­gen in each case is con­sid­ered in the oper­a­tional optimizations.”

Open data platform

The open data plat­form of the EnDa­Space is based on a FIWARE instance pro­vid­ed by Fraun­hofer IOSB-INA. As an open source ini­tia­tive, FIWARE offers a mod­u­lar con­struc­tion kit for the imple­men­ta­tion and oper­a­tion of data plat­forms. In par­tic­u­lar, the focus is on stan­dards and solu­tions for the man­age­ment of con­text data. An anom­aly detec­tion exe­cut­ed on the data plat­form could thus be eas­i­ly linked to the oper­at­ing data of the wind tur­bine. The chal­lenge in the project was to con­nect the data flow via the IDS con­nec­tors with the data man­age­ment in the FIWARE environment.

“The com­bi­na­tion of Data Spaces and already estab­lished open plat­form tech­nol­o­gy is a future mar­ket,” pre­dicts Anders Borcherd­ing, research asso­ciate at IOSB-INA. “We see inter­est­ing appli­ca­tion oppor­tu­ni­ties here, par­tic­u­lar­ly in the area of smart cities.”

About the project

The “EnDa­Space Pla­ton” project was select­ed by the Fraun­hofer-Gesellschaft as part of the Inno­va­tion Push Pro­gram and will run from August 2020 to Feb­ru­ary 2021. In addi­tion to the work on demon­strat­ing the Ener­gy Data Space, approach­es to the plat­form econ­o­my in the ener­gy indus­try were sci­en­tif­i­cal­ly inves­ti­gat­ed in the “Pla­ton” sub-project. The Fraun­hofer Insti­tutes IEE, IOSB-INA, IOSB-AST, ISST and IWES were involved in the EnDa­Space sub-project.

A video on the Ener­gy Data Space and the con­tents of the project will be pub­lished at the same time as this press release. In addi­tion, the con­tents of the project will be pre­sent­ed in an Expert Web Ses­sion on May 27 at 10 a.m. in coop­er­a­tion with Fraun­hofer Ener­gy Intel­li­gence (ENIQ). The video, the reg­is­tra­tion page for the Expert Web Ses­sion and fur­ther infor­ma­tion on the project are avail­able on the web­site