Electro-hydraulic work vehicle system (100, 200, 300, 400, 500) having a hydraulic lift mechanism (11, 22), the electro-hydraulic system comprising: a first electric motor/generator; a first hydraulic pump/motor operatively connected to the first electric motor/generator, wherein the first hydraulic pump/motor is configured to provide pressurized fluid to the hydraulic lift mechanism (11, 22) when driven by the first electric motor/generator; valve means hydraulically connected between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22), wherein the valve means is switchable between a first position in which the valve means retains pressurized fluid in the hydraulic lift mechanism and a second position in which the load holding valve enables pressurized fluid to flow between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22); a pressure relief valve hydraulically connected between the first hydraulic pump/motor and a hydraulic tank, wherein the pressure relief valve is switchable between a first, initial position in which the pressure relief valve prevents pressurized fluid from flowing from the first hydraulic pump/motor to the hydraulic tank and a second position in which the pressure relief valve enables pressurized fluid to flow from the first hydraulic pump/motor to the hydraulic tank; whereby an hydraulic energy storage is hydraulically connected between the first hydraulic pump/motor and the relief valve, wherein in decent mode of hydraulic lift mechanism (11, 22), the electro-hydraulic system (100, 200, 300, 400, 500) is configured to supply pressurized fluid to the hydraulic energy storage when the valve means is at its second position and the pressure relief valve is at its first position, wherein pressurized fluid from the hydraulic lift mechanism (11, 22) is capable of charging the hydraulic energy storage, characterised in that the valve means is a load-holding valve; the electro-hydraulic work vehicle system (100, 200, 300, 400, 500) further comprises an electric energy storage electrically connected to the electric motor/generator; wherein pressurized fluid from the hydraulic lift mechanism (11, 22) is also capable of driving the first hydraulic pump/motor which can drive the first electric motor/generator to create electricity that can be stored in the electrical energy storage. a first electric motor/generator; a first hydraulic pump/motor operatively connected to the first electric motor/generator, wherein the first hydraulic pump/motor is configured to provide pressurized fluid to the hydraulic lift mechanism (11, 22) when driven by the first electric motor/generator; valve means hydraulically connected between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22), wherein the valve means is switchable between a first position in which the valve means retains pressurized fluid in the hydraulic lift mechanism and a second position in which the load holding valve enables pressurized fluid to flow between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22); wherein the first hydraulic pump/motor is configured to provide pressurized fluid to the hydraulic lift mechanism (11, 22) when driven by the first electric motor/generator; valve means hydraulically connected between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22), wherein the valve means is switchable between a first position in which the valve means retains pressurized fluid in the hydraulic lift mechanism and a second position in which the load holding valve enables pressurized fluid to flow between the first hydraulic pump/motor and the hydraulic lift mechanism (11, 22); a pressure relief valve hydraulically connected between the first hydraulic pump/motor and a hydraulic tank, wherein the pressure relief valve is switchable between a first, initial position in which the pressure relief valve prevents pressurized fluid from flowing from the first hydraulic pump/motor to the hydraulic tank and a second position in which the pressure relief valve enables pressurized fluid to flow from the first hydraulic pump/motor to the hydraulic tank; whereby an hydraulic energy storage is hydraulically connected between the first hydraulic pump/motor and the relief valve, wherein in decent mode of hydraulic lift mechanism (11, 22), the electro-hydraulic system (100, 200, 300, 400, 500) is configured to supply pressurized fluid to the hydraulic energy storage when the valve means is at its second position and the pressure relief valve is at its first position, wherein pressurized fluid from the hydraulic lift mechanism (11, 22) is capable of charging the hydraulic energy storage, characterised in that the valve means is a load-holding valve; the electro-hydraulic work vehicle system (100, 200, 300, 400, 500) further comprises an electric energy storage electrically connected to the electric motor/generator; wherein pressurized fluid from the hydraulic lift mechanism (11, 22) is also capable of driving the first hydraulic pump/motor which can drive the first electric motor/generator to create electricity that can be stored in the electrical energy storage.