Yes they are electric motors. I believe they are similar to the motors in golf carts.
Cool! That's nice. No obnoxious exhaust fumes. Quietly motoring along with only the sound of the hull slicing thru the water and the wind whistling in your ear. Sort of like sailing, only easier. At 5mph it probably feels like you're flying.
And I used to think that Jet boats were cool. Dang, I must be getting old.
