 The Navy is on the cutting edge in the race for alternative energy. Secretary of the Navy Ray Mavis explains how alternative energy benefits the Navy and is the future for Navy and Marine Corps energy use. The Navy has always led when we've changed energy. We went from sail to cove in the middle of the 19th century. We went from coal to oil in the early part of the 20th century. We pioneered nuclear in the middle of the 20th century for transportation in our submarines and our carriers. Every single time, every single time that we changed energy sources, there were all these naysayers. Every single time, every single time they were wrong. And they're wrong this time and you're seeing that. You're seeing it in the private sector as the move toward alternative energy is picking up steam.