"Renewable energy has a growing role to play in meeting the world's energy needs. "
There's a understatement , wind and solar amount to 5% worldwide.....lol.
The navy provided testing facilities ,and I'm betting ,  not for free either.It was designed by a private company ,not the navy
"The Navy seems particularly excited about the potential for providing remote villages in Alaska with relief from the high cost of diesel fuel for heating and power generation."
 Did not know that was part of the navies mandate? Are they in the fuel delivery business?
Since appears to be meant for remote areas with rivers deep enough to accommodate it , I do not think it will help that growing role much...lol.