Battery Power Management and Control
timer that outputs a 1.5v signal to a piezoelectric beeper. Bring the signal for the beeper to the gate of the NTE5455 instead to start a 10vdc source corroding a burnwire.SequencerPowering up multiple parallel circuits might be challenging due to initial in-rush currents. The TI LM3880 Simple Power Supply Sequencer is a device that controls power up and power down sequencing of three independent voltage rails. By staggering the startup sequence, the instantaneous battery loads are moderated. The robust part is qualified for automotive applications and features a low quiescent current of 25 &mu
Hybrid Theory: Multi-Domain Unmanned Systems are Blurring Maritime Boundaries
approach to scalable, “disruptively affordable” autonomous maritime systems.SubSeaSail’s HERMES, meanwhile, is a scalable, self-righting, semi-submersible trimaran designed for long-duration surface and subsurface operations, and is envisioned as a cargo and expeditionary power supply platform. Like HORUS, HERMES can submerge to 100 meters to evade detection or ride out severe weather. With speeds of 5 to 15 knots, and large-volume payload space, it offers a high-speed, attritable platform for contested logistics.The HERMES. Credit: SubSeaSailAnother maritime innovator, Gulfport-bas
FID Made on Australia’s Marinus Link
cables, a communications station, and converter stations at each end.The project’s cables span 345 kilometers. This includes 255 kilometers of undersea cables across Bass Strait and 90 kilometers of underground cables in Gippsland, Victoria.Marinus Link’s 1,500MW capacity is equal to the power supply for 1.5 million Australian homes and approximately three times the capacity of the existing Tasmania to Victoria interconnector, Basslink.Marinus Link will be delivered in two stages. Initially as a 750MW project (Stage 1) with a second 750MW link to follow at a later date (Stage 2).The project
Offshore Solar Farm Set for Integration with Dutch Offshore Wind Project
farm has been completed at the Port of Amsterdam in a ‘world’s first’ project that will integrate the system with an offshore wind farm in the North Sea, offshore Netherlands.The system, supplied and built by Oceans of Energy, is larger than a football field and is set to integrate power supply at 759 MW Hollandse Kust Noord offshore wind farm in summer 2025.The wind farm, operated by Crosswind, a joint venture by Shell and Eneco, is located 18.5km offshore in the North Sea.The assembly of the offshore solar farm has been completed at the Port of Amsterdam, and the system is ready for
Synaptec Rolls Out Monitoring Tech to Tackle High-Voltage Cable Faults
power grids, it replaces manual inspection and reactive maintenance with a smarter, safer, and far more cost-effective approach to asset management.The system is based on Synaptec’s patented Distributed Electrical Sensing (DES) technology, which uses fully passive sensors that require no power supply, no data networks, and no ongoing maintenance.According to Synpatec, a single high-voltage cable fault in transmission networks and offshore wind developments can cost up to $1.3 million (£1million) per day in lost revenue.The vast majority of these failures, almost 70%, originate not in
Sonardyne Integrates -4H-JENA Sensor into ADCP for Ocean Acidification Research
tools for understanding ocean acidification. The HydroC sensor integrates with Sonardyne's Origin 600 through either direct connection to the ADCP’s external sensor port or via the versatile Origin E-Mux multiplexer, which supports up to four external sensors simultaneously and extends power supply capability for longer deployments.In a recent deployment for a Sonardyne customer project, the integrated system demonstrated its effectiveness. The CONTROS HydroC sensor, preconfigured using dedicated -4H-JENA engineering software to produce measurements at defined intervals, was cabled directly
Research Vessels: A Conversation with Bruce Applegate of UNOLS
systems are increasingly being used to supplement traditional ship-based research. “With autonomy, we can deploy a swarm of sensors alongside ships, transforming data collection from a single track-line profile to a broad swath of information,” he said. However, challenges such as range, power supply, and system reliability mean that ships will remain indispensable as mobile command centers for these autonomous platforms.Students spent the day aboard the Robert Gordon Sproul as part of Fiamma Straneo’s Observational Physical Oceanography 176 class. The purpose of the cruise was to train
NKT Concludes First Cable Installation Phase for O&G Scheme Off Norway
, and the company has now moved to install the 255 km HVAC cable, connecting the Yggdrasil offshore oil and gas area to shore.The company’s cable-laying vessel, NKT Victoria, has been deployed for the first installation campaign.Once finished, the 145 kV cables will provide a stable, low-emission power supply.“This milestone is a result of strong collaboration with Equinor during cable design, production, and installation. The development of Yggdrasil on the Norwegian Continental Shelf is headed by operator Aker BP with Equinor and Orlean Upstream Norway as license partners,” NKT said in
Baltic States Switch from Russian to European Power Grid
joined the European Union and NATO in 2004.The three staunch supporters of Kyiv stopped purchases of power from Russia following Moscow's invasion of Ukraine, but have relied on the Russian grid to control frequencies and stabilise networks to avoid outages.Analysts say that maintaining a constant power supply requires a stable grid frequency, which can more easily be obtained over time in a large synchronised area such as Russia or continental Europe, compared to what the Baltics can do on their own.For Russia, the decoupling means its Kaliningrad exclave, located between Lithuania, Poland and the
December 2025
