Wave Energy Conversion Devices

Power from the waves… A Swedish company built a buoy that works like a heart. It pulls down while the ocean pushes up, turning that fight into electricity. This buoy is already in the water. CorPower’s C4 converter survived 18.5m swells off Portugal and kept running. It’s tied into the grid, hitting 600 kW in early runs, with upgrades aiming for 850. The design is light, durable, and claims five times more electricity per tonne of machine compared to older wave prototypes. That matters in an industry where most devices either broke apart or went bankrupt. Waves carry the highest energy density of any renewable source. They don’t turn off at night. The physics is proven. The challenge is whether the machines can last decades without sinking money as fast as they make power. Are waves finally ready to join solar and wind, or is this just another buoy riding the tide of hope? Daily #electronics insights from Asia—follow me, Keesjan, and never miss a post by ringing my 🔔. #technology #innovation

The ocean is one of the world’s biggest untapped power sources. For years, wave energy has promised much and delivered little. A Swedish company is now changing that. CorPower has built floating buoys that ride the movement of the waves while anchored securely to the seabed. Inside each unit, wave motion is converted into electricity through smart mechanical systems that turn up and down movement into usable rotational power. What makes this different is how the buoy responds to the sea. In normal conditions, it actively adjusts itself to match incoming waves, squeezing far more energy out of every swell. In storms, it automatically detunes, letting extreme waves pass without damaging the equipment. The result is more reliable generation from a resource that never switches off. For coastal regions, this matters. Wave power can sit alongside wind and solar as a steady, low impact source of clean energy, especially in countries with strong coastlines like the UK. This is not just clever engineering. It is proof that nature itself can become part of our energy system. The future of renewables is not only on land or in the sky. It is moving with the ocean.

The Atlantic Ocean is now continuously powering 15,000 homes in Portugal. Not through offshore wind. Through the physical movement of the water itself. Three kilometers off the coast of Peniche, twenty-four oscillating surge converters are anchored to the seabed. They function like giant hinged doors. Every time an Atlantic swell rolls through, the underwater panels rock back and forth. That constant motion pumps hydraulic fluid through generators, quietly producing 40 megawatts of electricity. It is the first commercial-scale wave energy installation on Earth. The mechanics are brilliant because they rely on inevitability. The ocean pushes the panels. The panels generate power. Because the swells here average 2.5 meters year-round, this system operates with a 42 percent capacity factor. That output rivals land-based wind turbines. Portugal has already approved another 400 megawatts of these arrays for this stretch of coastline. If fully developed, the push and pull of the ocean could eventually cover thirty percent of the nation's entire grid.

🌊 Reimagining Breakwaters: Turning Loss into Power 💡 I'm excited to share this informative diagram of a low-head hydropower system alongside a vision for innovating traditional breakwaters! Innovating Breakwaters: Traditional breakwaters serve as protective barriers against waves but can often lead to energy loss. By integrating innovative designs, we can transform breakwaters into active energy generators. Here’s How We Can Innovate: Incorporate Turbines: Embed low-head turbines within breakwater structures to harness kinetic energy from incoming waves. Wave Energy Converters: Implement devices that capture wave motion and convert it into electrical energy, utilizing the energy that would typically be lost. Adaptive Design: Use flexible materials that respond to wave patterns, maximizing energy capture and enhancing structural durability. Integrated Reservoirs: Create reservoirs in breakwater designs to store captured water and regulate flow, optimizing energy generation. Benefits: Sustainable Energy: Generating power from otherwise wasted energy improves the ecological footprint. Resilience: Enhances coastal protection while supporting renewable energy initiatives. Innovative Solutions: Supports the shift toward smarter, more resilient infrastructure. By rethinking breakwaters not just as barriers but as potential power sources, we can contribute to a more sustainable future! 🌍⚡ Image used for educational and technical illustration purposes. Rights belong to the respective owner. #Hydropower #RenewableEnergy #WaveEnergy #Sustainability #Innovation #CoastalEngineering

🌊 WEPTOS: Revolutionizing Wave Energy Conversion ♻️ 🟢 Weptos is a Danish company that has developed an innovative Wave Energy Converter (WEC) designed to harness the power of ocean waves to generate electricity. ➕ Their technology is based on a flexible, floating structure inspired by Salter’s Duck geometry, a concept known for its efficiency in absorbing wave energy. The Weptos WEC can adjust its opening angle depending on the sea conditions, allowing it to either widen for better wave capture or narrow to withstand harsh weather, ensuring both durability and performance. Their patented technology offers a highly efficient and cost-effective solution for generating electricity from ocean waves, with minimal environmental impact 𝟔𝟎% 𝐏𝐞𝐚𝐤 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐢𝐨𝐧 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 Extensive testing and data analysis have shown that the Weptos WEC consistently achieves over 60% peak conversion efficiency. 𝐏𝐚𝐭𝐞𝐧𝐭𝐞𝐝 𝐩𝐨𝐰𝐞𝐫 𝐭𝐚𝐤𝐞-𝐨𝐟𝐟 𝐬𝐲𝐬𝐭𝐞𝐦 (𝐏𝐓𝐎) Weptos patented PTO system stands out by extracting mechanical energy with minimal energy loss through a dual-directional rotor movement. 𝐄𝐚𝐬𝐲 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 In rough weather, the floating design can be easily detached and relocated to port for secure and convenient access to 'calmer areas.' The operation can be fully or partially halted to facilitate maintenance. 𝐌𝐢𝐧𝐢𝐦𝐚𝐥 𝐄𝐧𝐯𝐢𝐫𝐨𝐧𝐦𝐞𝐧𝐭𝐚𝐥 𝐈𝐦𝐩𝐚𝐜𝐭 Weptos’ floating design, sustainable materials and low footprint on the seabed ensure minimal impact on marine life. Weptos has been in development since 2007 and has undergone various tests, including deployment off Denmark's coast in 2017. The company’s long-term vision includes scalability, aiming to make wave energy a more practical and sustainable alternative worldwide, particularly in regions like the North Sea and the Mediterranean. 𝐖𝐢𝐥𝐥 𝐄𝐮𝐫𝐨𝐩𝐞 𝐭𝐚𝐤𝐞 𝐭𝐡𝐞 𝐥𝐞𝐚𝐝 𝐢𝐧 𝐢𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐰𝐚𝐯𝐞 𝐞𝐧𝐞𝐫𝐠𝐲? Weptos CEO Tom Larsen recently cautioned that if major energy players and governments do not actively support European wave energy, the market risks shifting to Asia. What are your thoughts on wave energy’s potential to play a larger role in renewable energy across our fragile world? 👇 #cleanenergy #sustainability

What if the ocean could power our cities? 🌊⚡ While we look to the sun and wind for clean energy, there’s another giant quietly waiting to be tapped — the sea. Enter CorPower Ocean’s C4 — a breakthrough wave energy device designed to convert ocean motion into clean electricity. Here’s why this matters: 🔹 Smart Engineering – The C4 is a buoy-like wave energy converter that moves with the waves, transforming their force into usable power. 🔹 From Testing to Reality – After successful trials in Norway and Sweden, it has now entered its first commercial deployment phase in Portugal. 🔹 Sustainable by Design – Built by Swedish innovators, the goal is clear: make wave energy reliable, scalable, and cost-efficient. 🔹 Consistent Power Source – Unlike some renewables, ocean waves offer steady, predictable energy — making them a powerful complement to solar and wind. This isn’t just another renewable experiment. It’s a step toward diversifying our clean energy portfolio and unlocking one of Earth’s most powerful natural resources. If we can master the rhythm of the ocean, the future of energy might just be unstoppable. Would you invest in wave energy as the next big renewable breakthrough? Follow Farheen Naz for more insights on clean tech, innovation, and the future of energy. #RenewableEnergy #WavePower #CleanEnergy #Sustainability #ClimateTech #Innovation #FutureOfEnergy

Wave energy has always had one big problem: the ocean. It's an unforgiving place to put a machine. Time and again, a promising device goes into the water, survives the calm, and breaks in the storm. Or it survives the storm but can't generate enough energy to make the economics work. CorPower Ocean is built to solve both problems at once. In the Atlantic, off the coast of Portugal, its spherical buoy has survived 50-foot-plus waves. The company's technology is inspired by biomimicry and draws on a principle borrowed from the human heart, using stored pressure to generate energy in both directions on every single wave. It's now building commercial wave farms off the coasts of Portugal and Scotland. When those farms come online, wave energy won't just be another renewable source. Its production profile doesn't correlate with wind or solar — it produces when they don't. Add it to the energy mix, and the whole system becomes more affordable. My Supercool guest this week is Catharina Belfrage Sahlstrand, CorPower's Chief Commercial Officer. Her career spans corporate law, debt capital markets, and sustainable finance, including a stint as Chief Sustainability Officer at a Nordic bank. Catharina understands what financiers, utilities, and offtakers need before they'll commit: the risk structure, the deal terms, and the confidence in not just the technology but the transaction. Listen wherever you get your podcasts. Link in comments.

🌊 The ocean is secretly generating power while we scroll past. When people think of renewable energy, they picture wind turbines or solar panels. But the ocean quietly stores a massive amount of energy. In its waves. I wrote my PhD on marine renewable energies (and deep-sea mining and offshore oil and gas). One thing that really surprised me was the incredible diversity of wave energy devices. There are : -buoys that float and move with the waves, -oscillating columns that push air through turbines, -snake-like attenuators that bend and twist with the swell, -and overtopping systems that capture water in reservoirs before releasing it through turbines. Each design is an ingenious response to the ocean’s relentless motion. What fascinates me most is how these devices work with nature instead of against it. Unlike solar or wind, waves are predictable and dense in energy, and they often keep moving when the sun sets or the wind dies down. Offshore, these devices have minimal visual impact, and modular designs allow scaling from a single buoy powering a few homes to clusters that rival a small wind farm. Of course, wave energy has challenges. Connecting to the grid from offshore is costly. Devices must withstand storms, corrosion, and biofouling, and the cost per megawatt-hour is still higher than wind or solar. But innovation is rapid, and the potential to diversify our energy mix and stabilize grids is enormous. Wave energy won’t replace wind or solar, but it doesn’t need to. Its strength lies in being reliable, complementary, and adaptable. ♻️ Share this to inspire your network. 👉 Follow Alix Willemez, PhD for more insights on ocean energy, resilience, and sustainable solutions.