DIFF Main Group
H02J 15/00 Systems for storing electric energy specially adapted for power networks
Introduced: July 1974
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
IPC defines codes here since 2026.
Child Classifications
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- H02J 15/20 using storage of pneumatic energy, e.g. compressed air energy storage [CAES] since 2026 IPC+CPC Available in IPC and CPC
- H02J 15/30 using storage of inertial or mechanical energy, e.g. using flywheels since 2026 IPC+CPC Available in IPC and CPC
- H02J 15/40 using coils, e.g. superconductive magnetic energy storage [SMES] systems since 2026 IPC+CPC Available in IPC and CPC