Now, a floating spine-like contraption has shown promise too.
The Waveline Magnet
Cyprus-based Sea Wave Energy Limited (SWEL) has been working on its technology to capture energy from the waves for over a decade now. Earlier this year, the company unveiled the prototype called the Waveline Magnet, which comprises several floating platforms linked to each other to give it a floating-spine-like appearance.
The modular and flexible system is designed so that the energy generator can seamlessly follow the movement of the waves. This, according to the company, allows the device control over how much energy is extracted from the wave in a controlled and non-disruptive manner.
Additionally, the device can be manufactured using plastic and reinforced plastics that do not require specialized lines of production, thereby reducing the cost of making them. Not only can the device be manufactured and deployed quickly, but its repair and maintenance costs are also low.
Under the right conditions, a single wave energy converter can generate as much as 100 MW of power, the company claims, and its low cost of energy production puts it at par with fossil fuels already.
Road to commercialization
The prototype has largely been tested in controlled environments. It was only last year that the device was taken out to Larnaca Bay in Cyprus for its open-sea trials.