Turning Waves into Power: C-Power’s Renewable Breakthrough
What comes to mind when you think of waves? Perhaps the beach, swimming, or relaxing holidays. Now imagine those very waves generating enough energy to power homes, businesses, and entire cities.
As a global leader in the developing ocean energy sector, particularly in wave energy, C-Power is turning that vision into reality. Originating as a graduate research project at Oregon State University, the company has built on decades of innovation, research, and engineering to develop pioneering solutions that transform the ocean into a powerful energy source.
“Wave energy is incredibly dependable because waves are always present,” says Reenst Lesemann, CEO of C-Power. “There’s less intermittency and seasonality compared to other renewables, so wave energy can act more like baseload power, unlike wind or solar. Wind and solar are great, but there’s definitely a need for a third consistent renewable resource.”
From a practical standpoint, wave energy involves two forces: heave and surge. Combining these forces presents both high potential and technical challenges. Reenst explains, “The ocean is our largest and best battery. Wave energy originates from wind, which is generated by the sun, so it’s essentially stored solar and wind energy.” This results in an energy-rich resource, but the challenge is figuring out how to harness this power efficiently.
“To capture such dense energy, three key factors must align,” he explains. “We call it the trilemma.” A product must be reliable, regulatory compliant, and cost-effective. Focusing on one factor without considering the others can disrupt the balance. “For instance, prioritizing durability could make a product less affordable. C-Power has managed to address all three aspects successfully.”
Simply Robust
Through this approach, C-Power has developed two customer-focused products that are simple to deploy, efficient, and cost-effective. The SeaRAY Autonomous Offshore Power System (AOPS) provides in-situ power, energy storage, and real-time data for low-power offshore applications. “The SeaRAY acts as a charging station, data server, and cloud connection in areas where power is limited or non-existent,” Reenst explains.
The second product, the StingRAY, is designed for higher power offshore and onshore needs, offering utility-scale renewable energy. “We’ve begun commercializing SeaRAY, and StingRAY will follow,” says Reenst, referencing the SeaRAY’s first sale in April 2022 for a U.S. Navy-sponsored project.
“We aim to have the first StingRAY in the water by 2024, but 2023 has already been busy,” he adds. “We’re preparing for a SeaRAY AOPS deployment in Hawaii, running static data systems to create a mini power and data grid in the ocean. Additionally, we’ll operate a Saab Sabertooth autonomous underwater vehicle. This will be the first instance where an untethered subsea vehicle is powered and supported by an in-situ renewable energy system.”
C-Power’s market research revealed that customers prioritize reducing operational costs, complexity, and carbon intensity. “Initially, we thought generation capacity was the primary concern,” Reenst admits. “But listening to customers showed us the importance of simplicity and ease of deployment.” The company’s design emphasizes minimal mass, robust communications, and straightforward deployment. “We use a simple mooring system and a single conversion process to turn wave energy into usable energy,” he adds.
Powering Innovation
Reenst joined C-Power in its early stages, drawn to its mission of developing wave energy systems. “I was on a panel with one of the Co-Founders, and the idea just resonated with me,” he recalls. “I loved the innovative approach to power conversion and design. Plus, the growing market demand made it an exciting opportunity. There aren’t many chances to introduce a new renewable resource to the world.”
Reflecting on his journey, Reenst shares some personal insights. “One of the best pieces of advice I’ve received is that the quietest person in the room might have the most important idea. It’s crucial to ensure everyone is heard and valued, including employees, customers, and competitors.”
Looking ahead, C-Power’s goal to integrate wave energy into the mainstream renewables market is progressing steadily. “In five years, wave energy won’t be seen as a novelty or niche,” Reenst concludes. “It will be recognized as a mainstream solution for providing reliable power, both offshore and on land.”