Page 32: of Marine Technology Magazine (March 2022)

OCEAN INSTRUMENTATION & SUBSEA POWER reactants are supplied to the EDR mani- transitioned from ‘Sleep-mode’ to ‘On’, ery. The entire system was loaded and fold where the gas ? ow creates the posi- in response to power demands from the deployed in a couple of hours without tive feedback needed to ensure consistent pumping unit as it repeatedly cycled on specialized equipment or training and re- supply of reactants to the fuel cell with no and off,” says Teledyne. covered by a different boat crew with no moving parts.” It’s also a “load-following “The testing at Tau demonstrated the technical representatives onboard.” engine,” producing power to suit user Subsea Supercharger is capable of meet- Another validation test is planned for requirements, without intervention, says ing real-world applications without the this Spring, when the Subsea Super-

Warnock, making it suitable for environ- need for operator intervention,” says charger will be integrated with an AUV ments where routine access is limited. Warnock. “By integrating the system charging dock to demonstrate untethered,

The validation tests in Tau included put- with a hydraulic pumping unit, this dem- long-duration AUV operations. ting the system to use powering a subsea onstration illustrated to the operators the hydraulic pumping unit developed by In- feasibility of having a stand-by energy Alternative Power Sources nova. “The two systems were integrated source for providing pressurized working A number of other projects have been and successfully deployed to a depth of ? uid to oil ? elds for rapid intervention. working to harness wave or ocean current 235 m (770 ft.) where subsea control The testing highlighted the ? exibility of energy, from the surface or at the seabed, ? uid was pumped to a pressure of 180 the Subsea Supercharger in terms of user to provide a consistent power supply. bar (2,600 psi) for 30 minutes, six times load pro? les by only supplying power as Two will be getting their new systems a day,” says Teledyne. “During the test, required. The demonstration also proved wet alongside energy storage and man- the Subsea Supercharger seamlessly ease of deployment, set up and recov- agement this year.

Photo from Geomar 32 March/April 2022

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