WASHINGTON, DC – Refueling of cars and trucks with hydrogen is moving closer to economic reality with new technologies showing that the projected cost of delivering compressed hydrogen gas in tube trailers can be cut by some 40%. 

  The cost reduction from $4.23 per gallon of gasoline equivalent (gge; 2005 dollars) to a range of $2.85-3.14/gge in 2009 was achieved by the use of higher capacity trailers: higher-pressure carbon fiber composite fiber tubes, and glass ... Log in to view full article.