(19)
(11) EP 4 680 911 A1

(12)

(43) Date of publication:
21.01.2026 Bulletin 2026/04

(21) Application number: 25714191.1

(22) Date of filing: 04.03.2025
(51) International Patent Classification (IPC): 
F28D 20/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F28D 20/0056; F28D 2020/0078; F28D 2020/0082; F28F 2270/00; F28D 2020/0065; Y02E 60/14
(86) International application number:
PCT/GB2025/050427
(87) International publication number:
WO 2025/186554 (11.09.2025 Gazette 2025/37)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 05.03.2024 GB 202403183

(71) Applicant: Energy Systems Management Limited
Cambridge Cambridgeshire CB5 8EP (GB)

(72) Inventors:
  • MACNAGHTEN, James Donnelly
    Hampshire PO15 5TX (GB)
  • CHANA, Krishan
    Hampshire PO15 5TX (GB)
  • SLEE, William Ranulf
    Hampshire PO15 5TX (GB)
  • WINSTANLEY, Guy Alexander James
    Hampshire PO15 5TX (GB)
  • KENWORTH, Mark Eugene Charles
    Hampshire PO15 5TX (GB)

(74) Representative: Abraham, Richard et al
Maguire Boss 24 East Street
St. Ives, Cambridgeshire PE27 5PD
St. Ives, Cambridgeshire PE27 5PD (GB)

   


(54) HEAT STORE