Magnetocaloric device, comprising: - two heat transfer structures (TD hot, TD cold, MS hot, MS cold); - at least one magnetocaloric material embedded between the two heat transfer structures (TD hot, TD cold; MS hot, MS cold); - at least one electric source for generating a magnetic field which enables regeneration of the magnetic energy, wherein the electric source comprises an electromagnet (3, 4) and an energy collector device, wherein the electric source is adapted to charge the energy collector device when the magnetic field of the electromagnet (3, 4) is turned off, and use the charged energy collector device for generation of a magnetic field in the electromagnet (3, 4) when the magnetic field is turned on, and wherein the electric source further comprises a first switching device for connecting the electromagnet (3, 4) to the energy collector device for charging the energy colletor device and a second switching device for connecting the energy collector device to the electromagnet (3, 4) for turning on the magnetic field in the electromagnet by releasing the energy stored in the energy collector device to start the current flow through the electromagnet (3, 4); and - at least one hydraulic circuit which comprises at least one propulsion means for the working fluid, wherein the heat transfer structures (TD hot, TD cold; MS hot, MS cold) are adapted to control the transfer or transport of heat between the magnetocaloric material and the working fluid. - two heat transfer structures (TD hot, TD cold, MS hot, MS cold); - at least one magnetocaloric material embedded between the two heat transfer structures (TD hot, TD cold; MS hot, MS cold); - at least one electric source for generating a magnetic field which enables regeneration of the magnetic energy, wherein the electric source comprises an electromagnet (3, 4) and an energy collector device, wherein the electric source is adapted to charge the energy collector device when the magnetic field of the electromagnet (3, 4) is turned off, and use the charged energy collector device for generation of a magnetic field in the electromagnet (3, 4) when the magnetic field is turned on, and wherein the electric source further comprises a first switching device for connecting the electromagnet (3, 4) to the energy collector device for charging the energy colletor device and a second switching device for connecting the energy collector device to the electromagnet (3, 4) for turning on the magnetic field in the electromagnet by releasing the energy stored in the energy collector device to start the current flow through the electromagnet (3, 4); and - at least one hydraulic circuit which comprises at least one propulsion means for the working fluid, wherein the heat transfer structures (TD hot, TD cold; MS hot, MS cold) are adapted to control the transfer or transport of heat between the magnetocaloric material and the working fluid. - at least one magnetocaloric material embedded between the two heat transfer structures (TD hot, TD cold; MS hot, MS cold); - at least one electric source for generating a magnetic field which enables regeneration of the magnetic energy, wherein the electric source comprises an electromagnet (3, 4) and an energy collector device, wherein the electric source is adapted to charge the energy collector device when the magnetic field of the electromagnet (3, 4) is turned off, and use the charged energy collector device for generation of a magnetic field in the electromagnet (3, 4) when the magnetic field is turned on, and wherein the electric source further comprises a first switching device for connecting the electromagnet (3, 4) to the energy collector device for charging the energy colletor device and a second switching device for connecting the energy collector device to the electromagnet (3, 4) for turning on the magnetic field in the electromagnet by releasing the energy stored in the energy collector device to start the current flow through the electromagnet (3, 4); and wherein the electric source comprises an electromagnet (3, 4) and an energy collector device, wherein the electric source is adapted to charge the energy collector device when the magnetic field of the electromagnet (3, 4) is turned off, and use the charged energy collector device for generation of a magnetic field in the electromagnet (3, 4) when the magnetic field is turned on, and wherein the electric source further comprises a first switching device for connecting the electromagnet (3, 4) to the energy collector device for charging the energy colletor device and a second switching device for connecting the energy collector device to the electromagnet (3, 4) for turning on the magnetic field in the electromagnet by releasing the energy stored in the energy collector device to start the current flow through the electromagnet (3, 4); and - at least one hydraulic circuit which comprises at least one propulsion means for the working fluid,