My son works for General Dynamics Shipbuilding Division and he called me up and asked if I wanted to go to a ship launching. Most of the ships they have helped build are mundane military and commerce vessels. He says this one is right up my alley - the greenest commercial vessel to date.
General Dynamics NASSCO: Ship Ceremony Information
Here is a bit more about the engines from Greencarcongress.
http://www.greencarcongress.com/2014...24-doosan.html
The ship is to operate in the Gulf leveraging the low cost and clean burning natural gas that is available to the Americas. It is also able to run on standard fuel oils as needed.
I don't know if security will allow me to take any pictures, but I'll try and post up what I can sneak out.