© Fraunhofer ICT

Bay­Wa r.e. sup­ports Fraun­hofer ICT with nov­el, holis­tic ener­gy solution

Bay­Wa r.e. is imple­ment­ing a holis­tic ener­gy project for the Fraun­hofer Insti­tute for Chem­i­cal Tech­nol­o­gy ICT in Pfinz­tal. For this pur­pose, pho­to­volta­ic (PV) sys­tems will be new­ly installed on the ICT cam­pus and con­nect­ed to the pow­er grid with­out their own invert­ers, but via an exist­ing wind tur­bine. This is a tech­ni­cal­ly very sophis­ti­cat­ed, nov­el plant com­bi­na­tion of wind and solar ener­gy includ­ing bat­tery stor­age, which is unique in Europe in this form.

Bay­Wa r.e. will install PV sys­tems with a total out­put of approx. 670 kWp on three roof areas and one open area. The PV sys­tems, wind tur­bine and bat­tery are con­nect­ed on the DC side with low loss­es and feed in with only one com­mon — instead of sev­er­al — sep­a­rate invert­ers. This increas­es effi­cien­cy through few­er ener­gy con­ver­sions and reduces costs. Con­struc­tion is sched­uled to begin in spring 2023.

Prof. Dr.-Ing. Frank Hen­ning, Insti­tute Direc­tor at ICT: “Sus­tain­abil­i­ty plays a major role for Fraun­hofer ICT, both in our research ori­en­ta­tion and in prac­tice on our cam­pus. In this con­text, our project for this holis­tic ener­gy solu­tion is a con­sis­tent step that we are tak­ing togeth­er with our part­ners. In this way, we are shap­ing the future at our insti­tute with fore­sight and responsibility.”

Stephan Auracher, Man­ag­ing Direc­tor of Bay­Wa r.e. Pow­er Solu­tions GmbH: “There is no one-size-fits-all solu­tion for renew­able ener­gies. Every cus­tomer has indi­vid­ual require­ments, wish­es and goals, which some­times also require tech­ni­cal­ly more com­plex con­cepts that are unique on the mar­ket. This flag­ship project shows that our cus­tomers also tack­le these kinds of chal­lenges with us and that we have the nec­es­sary pre­req­ui­sites to ensure that the sym­bio­sis of solar and wind ener­gy plus bat­tery stor­age for self-con­sump­tion succeeds.”

The Fraun­hofer ICT has already inte­grat­ed the fol­low­ing com­po­nents into its micro­grid on the elec­tric­i­ty side: a wind tur­bine with a capac­i­ty of 2 MW, a com­bined heat and pow­er plant, a “Redox-Flow” research bat­tery (1 MW/10 MWh) and a pow­er-to-heat plant. On the heat­ing side, a local heat­ing net­work was also imple­ment­ed to sup­ply the build­ings — sup­port­ed by a heat stor­age tank.

Anoth­er part­ner in this project is FREQCON, which devel­oped and installed the equip­ment already on site, includ­ing all the pow­er electronics.

Nor­bert Hen­nchen, Man­ag­ing Direc­tor of FREQCON GmbH: “We are delight­ed to be mak­ing an impor­tant con­tri­bu­tion to this unique light­house project. With our inno­v­a­tive pow­er elec­tron­ics for this com­plex hybrid sys­tem, we place par­tic­u­lar empha­sis on high effi­cien­cy in ener­gy conversion.”

The main cam­pus of the Fraun­hofer Insti­tute ICT has over 100 lab­o­ra­to­ries, as well as sev­er­al pilot plants and three test cen­ters on a 21-hectare site, which — thanks in part to this project — will be oper­at­ed in an increas­ing­ly cli­mate-neu­tral manner.