Kayacht uses a MotorYak electric motor

What started out as a personal project to add an electric motor to a kayak quickly turned into a commercial enterprise for Paul Howey. Howey wanted to create a quiet and easy way to navigate the waters without having to paddle himself. The system he designed mounts an electric motor to the front of an existing kayak. Alternatively, a complete electric kayak can be purchased from Kayacht if you don't want to do any of the installation work yourself. An electric trolling motor provides thirty pounds of thrust and uses AGM lead-acid batteries to allow for around four hours of propulsion if you are willing to paddle along. If you don't want to be an integral part of this hybrid system, expect around forty-five minutes of power when moving at a brisk pace using the motor only. This is no replacement for a proper boat, but we can imagine having some relaxing fun out on the lake with a machine such as this.

[Source: Gizmag]