Sharrow Propeller named clean technology transportation solution of the year

https://newatlas.com/marine/sharrow-contra-rotating-toroidal-propellers/

"...in CleanTech Breakthrough Awards program... already 30% more efficient, all-new CX boasts coaxial propellers rotating around single shaft in opposite directions... even more energy-efficient (30% more range), reduced outboard noise, faster (50% more reverse thrust),... Volvo, Mercury. Suzuki outboards and sterndrives... independent opposite rotations counter energy otherwise lost in tangential flow, better focusing on thrust... tipless blades... $8,995 to $11,995, depending upon make/ model, delivery Spring 2026"