| Tidal energy
solution compared to conventional tidal energy systems. As Levene explains: “We have just one moving part under the water, which reduces complexity and cost.” By focusing on simplicity and minimizing environmental disruption, Spiralis Energy has created a tidal power solution that is scalable, adaptable, and capable of meeting a variety of energy needs. Adding to its sustainable credentials, the Axial
Skelter is constructed using 3D printing with 100% recycled plastic and a repurposed steel frame. The entire device can be produced within just one week, making it both resource-efficient and quick to manufacture. The Axial Skelter is a versatile device that can operate in a range of water environments, from tidal currents in oceans to slower-moving rivers. Its modular design means that individual units can be deployed in clusters to generate larger amounts of power, making it suitable for applications ranging from small, remote island communities to larger, national grids. The company has even developed a metric to illustrate the impact of each unit: a single Axial Skelter can produce enough energy to brew 250,000 cups of tea per day. This simple yet effective measure is used as part of the company’s Tides2Tea campaign to raise public awareness and demonstrate the real-world potential of tidal energy.
Testing the waters: journey from
prototype to real-world application Since its founding, Spiralis Energy has moved swiftly from concept to prototype, building and testing increasingly larger models of the Axial Skelter. The company’s efforts culminated in a six-meter prototype, which was deployed in controlled testing environments with promising results. “Our computer simulations predicted performance within 1% accuracy,” Levene notes, highlighting the precision and innovation behind the company’s design. The
www.waterpowermagazine.com | January 2025 | 35
next phase of testing will take place off Alderney in the Channel Islands, an area known for its strong tidal currents and its reliance on diesel-powered energy.
Alderney offers the ideal environment for Spiralis
Energy’s technology, as the island seeks to reduce its dependence on fossil fuels and transition to cleaner, renewable energy sources. The aim is to replace a portion of the island’s diesel-generated power with tidal energy, cutting both costs and emissions. Levene is optimistic about the potential impact: “Alderney isn’t just a testing site – we hope to build a strong relationship with the island and its people. We’ve worked hard to ensure the community feels involved and supported, and their feedback has been invaluable. “ In addition to performance tests, Spiralis Energy is committed to ensuring that its technology does not harm local marine ecosystems. The company has equipped its prototypes with sensors and cameras to monitor interactions with marine life, working
Above: Axial Skelter arriving at Alderney
Below: Close up of Axial Skelter
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