Marine energy has come up all thanks to the yellow orb glowing underwater in Scotland. It is a glowing buoy known as the Archimedes Waveswing that is submerged beneath the water and is showing considerably positive results during testing at the European Marine Energy Centre (EMEC) in Orkney. Results show that at its peak, the device delivers 80 kW, even when operating at wind speeds that reach 63 mph. This yellow orb has great energy-generating potential.
Understanding the operation of the Archimedes Waveswing
Firstly, this device can be fully submerged thanks to its pressure-reactive design. Although several other wave-energy devices tended to float on the surface of the water, the Archimedes Waveswing tends to float beneath the waves. The buoy can respond effectively to subsea water pressure. With pressure fluctuation, the device tends to expand and contract. The expansion and contraction vertically drive the direct-drive generator, converting ocean movements into electrical energy more efficiently.
Since wave energy technological solutions are gaining momentum, it is great to find a solution that can operate and harness ocean forces silently and efficiently, all while working from below the surface of the water. The device works well and provides insight into the promising future for ocean-powered electricity. Knowing that this device works well may mean that subsea wave power could perhaps change the clean energy landscape for good.
Why will the glowing orb exceed expectations considerably?
Due to its operational capacity, engineers have found a few core characteristics of this glowing orb that enable the device to achieve its impeccable performance. Defining characteristics include the fact that:
- The orb can survive subsea, and the fact that the device is deployed subsea enables it to avoid storms completely.
- Direct-drive simplicity eliminates mechanical linkages, reducing maintenance efforts completely.
- Single-point mooring whereby a tension tether reduces mooring spread and allows for self-installation.
Back in 2022, this device was termed a 16 kW-rated Waveswing device, and that too at EMEC’s Scapa Flow test site. Thereafter, the device underwent testing and real-time operation. Recovery was considered as well. Results produced from the testing exceeded expectations considerably.
Performance and power capture results speak for themselves
It was during the 2022 testing period that results revealed positivity in terms of the output produced. Results show:
- Average power output was more than 10 kW
- Peak outputs reached 80 kW
The numbers indicate that AWS Ocean Energy can meet its high energy production claims and can surpass peak output predictions by 20%. During the testing period, it was further uncovered that the Archimedes Waveswing was able to maintain its effective operation during conditions with wind speeds of about 63 mph. It has become rather apparent that this device was particularly meant to remain structurally robust even during harsher environments.
A Swedish startup has also shown considerable improvements in terms of turning water into energy with their dragon that sails the seas.
A scalable energy solution that will put maritime energy on the map
The Archimedes Waveswing was designed to be flexible even in Scotland’s waters. From a single unit, 15 kW to 500 kW of power could be harnessed, making the solution best for offshore platforms or even for remote maritime communities. To generate enough power for larger communities, a multi-absorber array will be able to deliver 10 MW of power from a single platform, ensuring that wave power can be used alongside wind and offshore tidal systems.
The reason why the Archimedes Waveswing is such a practical solution is that it can be deployed in waters deeper than 25 meters. The device tends to work silently and leaves no footprint on the environment. This practical solution is thus best for ecologically sensitive environments. A treasure trove lies beneath the sea, and with the right device, we can generate energy.