An electric cargo ship is delivering coal in China

An all-electric cargo ship is now in use in China and it boasts an impressive 2.4 MWh energy storage capacity, Electrek reports. The ship is over 230 feet long, 45 feet wide and 14 feet deep and can carry a maximum of 2, 000 tons. Supercapacitors and lithium batteries make up the energy storage system and the ship can go about 50 miles on one charge. It will run between two shipyards, each of which has a charging station that can recharge the ship in around two hours. Moving towards electric power will be important for the shipping industry and this vessel is a step in that direction. Its payload however, is, wait for it, coal. And that may seem like an odd pairing but at least the ship isn’t burning fossil fuels while it’s carrying them. Tesla , Daimler , Cummins and Toyota are all working on shipping trucks that use alternative fuels and pushing our cargo ships in that direction will do a lot for the environment. The ship, which took its maiden voyage last month, will transport coal along the Pearl River in China’s Guangdong Province. Via: Electrek

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An electric cargo ship is delivering coal in China

US Navy decommissions the first nuclear-powered aircraft carrier

It’s the end of an era for the US sea power, in more ways than one: the Navy has decommissioned the USS Enterprise (CVN-65), the world’s first nuclear-powered aircraft carrier. The vessel launched in 1961 and is mainly known for playing a pivotal role in several major incidents and conflicts, including the Cuban Missile Crisis, the Vietnam War and the 2003 Iraq War. However, it also served as the quintessential showcase for what nuclear ships could do. Its eight reactors let it run for years at a time, all the while making more room for the aircraft and their fuel. As you might guess, the decommissioning process (which started when the Enterprise went inactive in 2012) is considerably trickier than it would be for a conventional warship. It wasn’t until December 2016 that crews finished extracting nuclear fuel, and the ship will have to be partly dismantled to remove the reactors. They’ll be disposed of relatively safely at Hanford Site, home of the world’s first plutonium reactor. It’s hard to know what the long-term environmental impact of the ship will be — while there’s no question that the radioactive material is dangerous, this isn’t the same as shutting down a land-based nuclear power plant . Whatever you think of the tech, the ship leaves a long legacy on top of its military accomplishments. It proved the viability of nuclear aircraft carriers, leading the US to build the largest such fleet in the world. Also, this definitely isn’t the last ( real-world ) ship to bear the Enterprise name — the future CVN-80 will build on its predecessor with both more efficient reactors and systems designed for modern combat, where drones and stealth are as important as fighters and bombers. It won’t be ready until 2027, but it should reflect many of the lessons learned over the outgoing Enterprise’s 55 years of service. Source: US Navy

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US Navy decommissions the first nuclear-powered aircraft carrier

Watch a large ship getting deformed from the inside in a heavy storm

On the left, a ship in a heavy storm as seen from the deck, going through giant waves. On the right, a ship in a heavy storm seen from a level deep inside, going through the same stress forces. I really don’t know which perspective is scarier. Read more…        

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Watch a large ship getting deformed from the inside in a heavy storm