DESCRIZIONE
The invention relates to a rescue device (2) having an energy store (3) and having a connection (4) for the transfer of electrical energy, wherein the rescue device (2) is connected electrically via the connection (4) to an island network (5). Via an island network (5) of a ship (1) or of a platform (19), which platform is connected electrically to a rescue device (2) via a connection (4), wherein the island network (5) has a generator (11), the energy store of the rescue device can be charged or discharged via a power converter (24).