New Wave Media

April 20, 2021

Seabed Power: Waves Used to Power Up Sabertooth Autonomous Vehicle

Hawaii Wave Energy Test Site (WETS). Image courtesy Hibbard Inshore

Hawaii Wave Energy Test Site (WETS). Image courtesy Hibbard Inshore

Converted energy from waves powering a Saab Seaeye Sabertooth autonomous vehicle operating in seabed residency mode is a renewable energy breakthrough being put to the test. 

C-Power’s SeaRAY Autonomous Offshore Power System (AOPS) provides offshore power, energy storage, and real-time data communications for resident marine systems.

Trials of the Sabertooth residency concept will take place at the U.S. Navy’s Wave Energy Test Site (WETS) in Hawaii and last 20 days. The SeaRAY AOPS and other static assets will remain deployed for six months. The Sabertooth, owned by Hibbard Inshore, and operated on behalf of C-Power, will repeatedly patrol pre-programmed areas to collect data, before returning to an underwater docking station for cloud upload and battery recharge.

Included in the studies will be seabed analysis, fish densities, infrastructure monitoring and water-column data gathering.

Many underwater sectors are seen to benefit from this innovative emission-free concept, including marine science and research, defence and security, aquaculture, and offshore energy.

The trials come in partnership with the U.S. Department of Energy’s Water Power Technologies Office, together with the National Renewable Energy Laboratory and the U.S. Navy. In particular, testing of the SeaRAY AOPS is included in the Navy’s Coastal Trident 2021 program, which is the largest port and maritime security undertaking in the nation.

For the Navy, the conventional difficulty in conducting underwater infrastructure surveys leaves critical infrastructure vulnerable to sabotage and intelligence gathering threats in this hidden environment. Frequently refreshed high-definition sensor data can alert remote operators to possible intruder activity.

Operating the Sabertooth will demonstrate that subsea residence enables a sustained presence to secure underwater port infrastructure and its ability to support efforts to protect shipping against underwater explosive devices.

For the trials, the Sabertooth will be equipped with an R2Sonic Sonic 2024 multibeam echosounder, 2G Robotics ULS-500 PRO Laser Scanner and camera, and the ASL AZFP 70,120 & 200 kHz Acoustic Zooplankton Fish Profiler.

The 3000m rated Saab Seaeye Sabertooth is a roaming and hovering system that can operate in both fully autonomous (AUV) and tethered (ROV) modes,.

Hibbard will deploy the Sabertooth for other significant projects this year including research at Lake Michigan by the National Oceanic and Atmospheric Administration (NOAA) concerning the invasive zebra mussel that adversely impacts the U.S. Great Lakes Region at a cost of $500million a year.

The 3000m rated Saab Seaeye Sabertooth is the world’s only roaming and hovering multi-role vehicle that can operate in both fully autonomous (AUV) and tethered (ROV) modes. Image courtesy Saab Seaeye

Marine Technology Reporter takes a deep dive into Oceanography in its February 2021 eMagazine edition, including insights on the GO-BGC Array Project to Monitor Ocean Health.
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