Some studies have gone so far as to proclaim offshore wind’s “dismal economics” unsustainable, particularly without massive government subsidies to keep it afloat.One of these is a French startup called Eolink, which is building a five-megawatt floating turbine.The turbine Eolink plans to build as a proof of concept will have a generating capacity of five megawatts and weigh 1,100 tons.For maintenance, the turbine can similarly be towed back to a shipyard, rather than having to send people, robots, and ships to labor at sea for days on end.A Swedish company called SeaTwirl is developing vertical-axis offshore turbines (and completed a seven-year-long trial of its technology earlier this year), and an American company called T-Omega Wind is working on a floating pyramid design similar to Eolink’s."