Page 55: of Marine Technology Magazine (November 2021)

Tech File

Innovative new products, technologies and concepts

Mooring Tech for Floating Tidal Energy Array

This year, Scottish Sustainable Marine will deliver the ? rst development phase of the Pempa’q In-stream Tidal Energy

Project – touted as the world’s ? rst ? oating tidal power array.

When completed, the project will provide up to nine megawatts of electricity to the province’s power grid.

The ? rst phase consists of a 420-kW PLAT-I tidal energy platform, and Seasystems AS has been commissioned to sup- ply adjustable mooring tensioners. Lying on the seabed, these are attached to the anchors that hold the power station in place in the strong tidal current – connecting the anchor chains with the anchors.

For the past ? ve years, the company has adjusted its strategy from being purely a supplier of equipment to the oil and gas industry to focusing on deliveries to aqua culture and ? oating

Photo courtesy Sustainable Marine renewable energy.

In 2020, Seasystems secured a contract to supply mooring tidal, ? oating wind, ? oating solar, ocean thermal energy con- equipment to Hywind Tampen, Equinor’s new ? oating wind version, deep water aquaculture and other challenging anchor farm, marking the ? rm’s ? rst hardware contract in the ? oating applications. This new solution, applied to the Pempa’q proj- wind power market. ect, involves the integration of Seasystems’ adjustable mooring

Seasystems has joined forces with Swift Anchors, a division tensioners with Swift Anchors’ broad anchor product portfolio of Sustainable Marine, in developing a unique hybrid moor- – including groutless rock Anchors, screw anchors, drag em- ing connector and anchor solution, speci? cally targeting wave, bedment anchors and grouted self-drilling piles.

Argeo selects Eelume ‘Snake Robot’ solution

Argeo AS, a survey and inspection company focused on sub- sea data acquisition and visualization, selected Eelume’s au- tonomous ‘snake robot’ to assist in its operations in the ? rst commercial contract to be signed for this technology. Eelume’s robotic solutions have been developed with the assistance of

Kongsberg Maritime, a majority shareholder in the venture, and has been actively involved in Eelume since the company was founded in 2015, bringing nearly 30 years of experience gained from their HUGIN AUV to the development of the Eelume snake robot.

Argeo’s aim is to transform the ocean space inspection in- dustry through robotics, sensors, and data analytics technology. “We believe that this is just the beginning of a major shift in how the industry conducts underwater operations. There is a need in the market for this type of solution, and we anticipate a signi? cant requirement for more robots of this type in the long term,” said Trond Crantz, CEO, Argeo. “In addition to lowering

Image courtesy Eelume carbon footprint and increasing ef? ciency, Eelume technology will enable Argeo to signi? cantly reduce the costs related to vessel activities.” In operation, one Eelume robot can typically inspection, light intervention and monitoring (IMR) of subsea provide a serviceable footprint of 50-75 sq. km. Argeo propose matching the technology with its Unmanned Surface Vessels assets and infrastructure. Currently, 90% of these costs are ves- sel-related. Implementing Eelume as a resident inspection tool (USV), making the Eelume an effective mobile survey solution for Offshore Wind and Oil & Gas will replace up to 70% of complete with deployment and recovery system. www.marinetechnologynews.com 55

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