During August and September 2015, Sound & Sea Technology, Inc. (SST) successfully managed and participated in the assembly and systems integration of the first Wave Energy Conversion (WEC) device for the Navy’s Kaneohe Bay Wave Energy Test Site (WETS) in Hawaii. Since May 2015, SST has been assembling and integrating components for the Fred. Olsen Ltd. Lifesaver Energy Platform in preparation for eventual offshore deployment and testing at WETS.
The Lifesaver Energy Platform (LEP) is an advanced electro-mechanical point absorber WEC platform that uses unique point absorber hull and leading-edge power take-off (PTO) configurations. The Lifesaver Energy Platform will be tested and evaluated for approximately six months at WETS. The device was previously tested in waters off the United Kingdom and is one of the most advanced devices in the industry. The Lifesaver Energy Platform is the first WEC device to be deployed at one of the new WETS deep water test berths and is the result of the Navy’s interest in advancing renewable energy for Department of Defense applications.
As the Prime Contractor for WETS, SST has provided engineering support services to the Navy to upgrade and expand WETS since 2012. This includes technical input for operations and installation, mooring analyses and design, environmental and geotechnical site reviews, power cable testing and analysis, grid connection component design, power grid studies, preliminary and final WETS system design specifications, and execution of the WETS infrastructure installation process.
The figures below illustrate the LEP mobilization and assembly process. The system is designed to be easily transported and then fully assembled at or near an installation site. As of today, the Lifesaver Energy Platform is ready for installation at WETS after being assembled at Joint Base Pearl Harbor Hickam (JBPHH). The WEC is currently at temporary storage waterside at Marine Corps Base Hawaii (MCBH) Kaneohe awaiting final environmental documentation.
Figure 1. Lifesaver Energy Platform assembly stages at Joint Base Pearl Harbor Hickam.
Photo credit: Sound & Sea Technology, Inc.
Figure 2. Lifesaver Energy Platform Assembly Team from SST, Healy‐Tibbitts, Navy, and Fred. Olsen. Photo credit: Sound & Sea Technology, Inc.
Figure 3. Lifesaver Energy Platform Deployment, Waterside Joint Base Pearl Harbor Hickam, and Lift / Assembly Crew. Photo credit: Sound & Sea Technology, Inc.
Figure 4. Lifesaver Energy Platform towed from Joint Base Pearl Harbor Hickam to Marine Corps Base Hawaii (MCBH) Kaneohe Bay water front operations. Photo credit: Sound & Sea Technology, Inc.
Figure 5. Lifesaver Energy Platform in water at Waterfront Operations’ quay wall, Marine Corps Base Hawaii , Kaneohe Bay, Hawaii, awaiting installation at Wave Energy Test Site 80m berth. Photo credit: Sound & Sea Technology, Inc.
Figure 6. Engineers, project and Navy officials participate in a traditional Hawaiian blessing of the Fred. Olsen Lifesaver Energy Platform at Joint Base Pearl Harbor-Hickam (JBPHH) on September 3, 2015. From L to R: Mike Zadra, Sound & Sea Technology (SST), Even Hjetland, Fred. Olsen, Matt Ramey SST, CAPT Michelle DeLuca, Vice Commander, Naval Facilities Engineering Command Pacific, Cmdr. David McAlister, NAVFAC Hawaii, Public Works Officer, JBPHH Facilities and Environmental, LCDR Ivan Cavenall (partially obscured), Assistant Regional Engineer Office, Energy Program Officer, Commander, Navy Region Hawaii, Dr. Patrick Cross, Hawaii Natural Energy Institute, and Kahu Kordell Kekoa of Kamehameha Schools Bishop Memorial Chapel, performing the Hawaiian blessing. Photo credit: Blair Martin Gradel, Ho’okele, Pearl Harbor-Hickam News newspaper.
Sound & Sea Technology, Inc. (www.soundandsea.com) is a woman-owned small business headquartered in Lynnwood, Washington, with a division located in Ventura, California, and operations in Cork, Ireland, and specializes in ocean engineering for complex undersea systems, for port and harbor security and renewable marine energy. The company provides ocean engineering, systems engineering, and program management support worldwide to the U.S. Navy, other government agencies, and firms that develop, build, and install systems and equipment in the ocean.