....the wave that greens all boats

Since electric outboard motors are easier to carry and stow, electric propulsion for small tenders are a natural choice for cruisers. There are no explosive fuels to store, no maintenance regimes to learn and fund, no emissions to damage the places you've traveled so far to enjoy. One solar recharging panel can get you one free mile each day for years, or shorepower recharge for about a 5 mile daily range. Most owners choose widely available electric trolling motors, though more powerful electric outboards are also available for short fast trips.  The motor in the picture represents the new market between these two extremes: