amperetta GmbH

On the water under a vast sky, the soft sound of the waves and the call of the birds from the reeds swaying in the wind are among life’s greatest pleasures – assuming you can hear them.

So far this pleasure has been denied to those in motorboats, because even at idle the engine is noisy. Electric boats are quiet, but until now have only offered the choice between very expensive or painfully slow.

amperetta hybrid changes everything.
This drivetrain will be the first powerful and affordable full-hybrid on the water. A strong electric motor will accelerate the vessel up to gliding phase and operates almost silently at slow and moderate speeds. If you need more thrust, or the battery is discharged, the combustion engine starts automatically and uses the electric motor as a generator to quickly recharge the battery – without anything required on the skipper’s part.

The amperetta system not only lowers noise but reduces the fuel consumption dramatically, all that at an only slightly higher price of a comparable maritime diesel engine.

Experience the future – now!

The control unit automatically provides the following drive modes:

In full-hybrid mode, the high torque of the electric motor alone is used to accelerate. As boat speed rises and electric energy is drawn down, the control unit automatically starts the engine and closes the clutch, synchronizing shaft speeds seamlessly. Now the electric motor operates as a generator, and the battery is recharged.

If the throttle is returned to idle, the combustion engine is automatically switched off, similar to the stop-start systems in cars. This not only saves fuel, but also reduces noise, so that the ambient sounds of wind and waves are always more present than the operation of the engine.

The skipper can select an electric-only mode, in which the combustion engine is never engaged. The control unit can also use the combustion engine earlier or more often to maintain a desired battery charge level, as chosen by the skipper.