There are many companies nowadays that are interested in manufacturing electric pedal boats. In many ways, the electric pedal boat is actually the perfect vehicle for the advance of electric technology because of the fact that the electric pedal boat is a recreational vehicle. Nobody that wants anything non-recreational out of their boat would purchase a pedal boat.
Because of this, people are more open to the use of experimental technology. This allowed electric engines to get into pedal boats sooner and that in turn has led to electric pedal boats being far more marketable than most other forms of electric boat today. There is still a lot to do however and the electric pedal boat industry as a whole still has some hurdles to overcome.
If there is one single thing that could be pointed at as the main stumbling block to the electric pedal boat industry, it would have to be the size of the battery. Batteries nowadays are still very bulky and heavy, especially when compared with conventional engines. If the electric pedal boat and by extension the electric boat in general is ever going to be competitive, a lightweight battery needs to be developed.
Another issue with the electric pedal boat is its heavy cost. Many electric pedal boats cost way too much money for their list of features. However, the development of a mass produced lightweight battery for the storage of electricity will go a long way towards bringing the cost of the boat down.