Two researchers have determined cost-effective ways to purchase these strange, alien legs dropping down to the seafloor—also known as moorings—for a new wave energy test facility currently under construction off the coast of Oregon. Illustration by Josh Bauer, NREL.No, this is not the start of a sphinx’s riddle. But that question—and others like it—did launch a, the anchor-line combinations that keep ships, buoys, and other floating objects from drifting away on the waves.
If each company buys its own mooring system, customized to suit its bespoke design, that would be both expensive and inefficient. “If a technology developer is only testing a device for a couple months, why spend all that money for just one test?” Housner said. Based on those three wave energy device types, Housner and Sirnivas concocted a list of potential mooring systems that could work well for each. They came up with 43 different mooring designs that use different combinations of materials , diameters, lengths, footprints, and more.
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