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INLAND TOWBOAT DESIGN “Conrad has worked with a series of piping, valve, and tank manufacturing companies in this space over the past couple years in anticipation of this product category further developing.

These vendors/partners have experience in design/development and installation of their products and have been instrumental in assisting us with our vetting of this product. Since 2009, Conrad has delivered almost 40 gas carrying Type C tank barges. To extend our knowledge into the double walled requirements of the LNG space will be a challenge, but one we feel is right in line with who we are, based on our experience.” – Terry Frickey, Executive Vice President Conrad Shipyard loses viability if the cost for the LNG delivered is more than member, with a dual fuel engine, you always burn some 80% diesel on a diesel gallon equivalent (DGE) basis. Diesel diesel as a pilot fuel) will make the economics most at- is approaching that price now, but Ultra Low Sulfur Diesel tractive, improve the environmental impact, and aid with (ULSD) is 15% to 25% more, still making LNG an attrac- maintenance. Gas fueled engine internals are much cleaner tive option. As shoreside fueling infrastructure continues to than diesel powered, so engine longevity and time between improve, the deliverable cost of LNG will only decrease for engine overhaul is also an advantage.” marine vessels, further incentivizing LNG as a marine fuel.” Arguably, the use of LNG for propulsion in ferries and

The variables to consider don’t just stop at price, howev- dedicated vessels in the Baltic is the perfect model for using er. That’s because it takes 1.7 gallons of LNG to equal one it on inland waterways – a