(19)

(11)

EP 4 256 667 A2

(12)

(88) Date of publication A3: 14.07.2022 (43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 21823819.4 (22) Date of filing: 30.11.2021

(51) International Patent Classification (IPC):  H02J 3/14(2006.01) H02J 13/00(2006.01) (52) Cooperative Patent Classification (CPC): H02J 13/00036; H02J 2310/14; H02J 3/14; Y02B 70/30; Y04S 20/242; Y02B 70/3225; Y04S 20/222 (86) International application number: PCT/EP2021/083461 (87) International publication number: WO 2022/117525 (09.06.2022 Gazette 2022/23)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 03.12.2020 FR 2012633 (71) Applicant: Energy Pool Developpement 73370 Le Bourget-du-Lac (FR)	(72) Inventors: GUYOT, Christian 73370 Le Bourget-du-Lac (FR) CERTOUX, Christophe 73370 Le Bourget-du-Lac (FR) AMAUDRIC DU CHAFFAUT, Guillaume 73370 Le Bourget-du-Lac (FR) (74) Representative: Cabinet Beaumont  4, Place Robert Schuman B.P. 1529 38025 Grenoble Cedex 1 38025 Grenoble Cedex 1 (FR)