Energy Storage News

Saipem’s Hydrone R – in the flesh and ready for real world testing. Image from Saipem.

MTR100: Five "Ones to Watch"

, to support field construction operations.The lines used to drive the winches are UV (sunlight) and marine growth resistant, and the system still generates power in relatively calm sea states, says Hjetland. A system with one winch would be just 5m-diameter and weight 10-tonne, with up to 500kW of energy storage on-board.Trials have included operations with the U.S. Naval Facilities Engineering Command, powering external oceanographic subsea sensors – including cameras and sonar systems - that were previously cabled, from a 30m test berth of the Navy’s Wave Energy Test Site (WETS), located

SurfWec Artist Concept. Images Courtesy:  SurfWEC LLC.

Efficient Wave-Generated Power … Really!

jumped out as early leaders, there is a renewed push to turn ocean wave power into a viable, renewable source of power and stored energy. A new entrant is SurfWEC LLC, which is aiming to become the 'go to' in the wave energy category, both as a stand-alone system and as added power source, energy storage, and wave damping units co-located with existing or future offshore wind farms.Meet the “Old New” CompanyA driving force behind the new performance projections for Wave Energy Converters (WECs) is Martin & Ottaway, a New Jersey-based marine engineering firm that has been in continuous

(Photo: EC-OG)

Subsea Power Hub Tested in Aberdeen

Subsea energy storage and power generation specialists EC-OG said it has demonstrated the capabilities of its Subsea Power Hub (SPH) for powering subsea production equipment using battery power alone, during a recent workshop test program in Aberdeen.During the trials, supported by the Oil & Gas Technology Center (OGTC) and a North Sea operator, the SPH was used to power a commercial Subsea Control Module (SCM) and local power distribution system. By operating the SCM using lithium ion battery technology, located within EC-OG’s proprietary Energy Storage and Intelligent Energy Management

Image: Eni a Ravenna

Eni Pilots Wave Energy Converter

, which will in the future enable Eni to convert mature offshore platforms into renewable energy generation hubs.The pilot plant was installed at the Ravenna offshore site by Eni’s Central Northern District and has been integrated into a hybrid smart grid system featuring photovoltaics and energy storage.It reached a peak power output of over 51 kW, or 103% of its nominal power. This technology is suitable for powering medium and large offshore assets and, in the future, will enable Eni to convert mature offshore platforms into renewable energy generation hubs.Waves are the most underutilized

Image: Ocean Power Technologies

Ocean Power Technologies Pact with NEC Energy Solutions

The provider of ocean energy solutions Ocean Power Technologies (OPT) signed a letter of intent to enter into a long-term supply agreement with NEC Energy Solutions, global leader in utility scale energy storage.Under the terms of the supply agreement, NEC ES will supply lithium ion batteries for OPT's subsea battery solutions.George H. Kirby, President and Chief Executive Officer of OPT, said: "NEC is a supplier of lithium ion batteries for our subsea battery solutions. Their long-standing leadership in the industry, as well as their dedication towards providing versatile, high-quality

Maneuvering the Subsea Power Hub over the pier for the first system wet trial. (Photo: Nortek)

Tidal Power for Seabed Oil and Gas Installations

and the electrical components within the system performed. The Aquadopp uses acoustic Doppler technology to take measurements, which makes it accurate and also reliable, as it has no moving parts to get clogged up by marine debris.Connecting the Aquadopp ACM to the Subsea Power Hub’s internal energy storage and DAQ systems. (Photo: Nortek)“For the test, we needed to plot the turbine speed and the power output against the flow at a particular time. So we could say for sure that at current speed X, the turbine was turning at Y revolutions per minute,” Slorach explained.The Aquadopp was

OPT's hybrid PowerBuoy with seafloor battery (Image: OPT)

OPT Rolls Out New Products

provide more comprehensive solutions that can meet the needs of more customers requiring reliable power and communications in their subsea work across the globe.”OPT’s entry into the subsea battery market presents a complementary product to the PB3. Given OPT’s expertise in offshore energy storage systems from existing PB3 technology, the subsea batteries will provide an opportunity for OPT to differentiate through technical, cost and delivery leadership. The specialized knowledge required of pressure regulated battery solutions can create a significant barrier to entry, thus potentially

Figure 1: The Sea Otter Surf Zone Crawler

Seafloor Crawlers: New Robotic Tools for Challenging Missions

developed rapidly. Products like the PackBot from iRobot and the Talon from Foster-Miller pioneered man-portable high performance ground robots. The demands of operating in harsh environments made these tools robust and inspired fully waterproof variants. Unfortunately at the time limitations in energy storage, autonomy and telemetry made seafloor crawling robots a novelty rather than a productive tool. This has changed.Through the surfToday C-2 Innovations, Inc., (C2I) has developed a family of capable, production ready, seafloor crawling robots to take users back through the surf zone and into the

(Photo: Principle Power)

Subsea’s Future is Blowin’ in the Wind

generated from the world’s first commercial floating wind farm. Electricity produced 25 kilometers offshore at the Hywind Scotland wind farm is transported via cables to an onshore substation in Peterhead, Scotland to be stored in the Batwind 1 MW lithium-ion batteries and connected to the grid.Energy storage technologies like batteries and others are expected to grow increasingly important for grid stability in the years to come, especially as the installed costs of battery storage systems continues to fall. Sebastian Bringsvaerd, development manager for Hywind and Batwind, explained that variability

Figure 1: The Riptide Family of Compact UUVs (Photo: Riptide)

Taking UUVs Faster, Further & Deeper

speed.Through an exclusive partnership with L-3-Open Water Power the micro-UUV will pioneer the use of aluminum seawater batteries. This new technology harnesses the energy of a chemical reaction between seawater and specially developed, high-purity aluminum alloys. The result is an inherently safe energy storage solution with a dramatic increase in energy density. This technology will be tested in 2018 and is anticipated to be available commercially on Riptide UUVs in 2019.Through both electronics optimization and new energy technologies Riptide is taking compact UUVs further than ever before.Faster:

Marine Technology Magazine Cover Jul 2019 - MTR White Papers: Hydrographic

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