Don’t miss anything!

Subscribe to our newsletter to stay up to date on the wind energy industry.

Sign Up

The next wave of floating wind – Counter-rotating turbines

Amidst the surge of innovation in renewable energy, a Norwegian startup, World Wide Wind (WWW), is making waves with a groundbreaking floating wind turbine design. With the recent approval to test its prototype off the southwest coast of Norway, this Oslo-based pioneer could be steering the world towards a future where the energy of our oceans is harnessed with unparalleled efficiency.

Bjørn Simonsen, CEO of WWW, envisions a future where renewable energy is not just available but economically viable on a large scale. WWW’s novel turbine design embodies this vision, leveraging first-principle physics to develop counter-rotating vertical axis turbines (CRVT) specially crafted for operation on the open sea. The key components of this design — a double set of counter-rotating blades, mast, and generator — work together to achieve remarkable efficiency and power.

Innovating above and below the waves

The 19-meter-tall prototype features a range of counter-rotating components, all designed to maximize energy capture and minimize environmental impact.   Unlike traditional horizontal-axis wind turbines (HAWTs), WWW’s CRVT design reduces the wake turbulence, allowing for a denser sea grid of turbines — a potential game-changer for the industry.

The genius of WWW’s design lies in its ability to navigate the unique challenges of the marine environment. The turbines are constructed to tilt and sway with the ocean’s rhythm, much like a sailboat, a stark contrast to the rigid structures commonly seen today. This mitigates structural stress and significantly broadens the viable locations for installation, particularly in deeper waters that have remained largely inaccessible until now.

The notion of economic sustainability

Stian Valentin Knutsen, founder of WWW, compares the turbine’s potential impact to Tesla’s revolution in the automotive sector. The crux of the matter is cost-effectiveness. The double turbine design, with two turbines spinning in opposite directions, could lead to a substantial reduction in the levelized cost of energy (LCOE), potentially dipping below US$50/MWh. This figure undercuts current HAWT installations and strikes at the heart of a renewable energy future that’s both environmentally and economically sustainable.

Scaling new heights

The ambitions of WWW soar high with the prospect of 400-meter-tall turbines capable of a 40-MW output by the end of this decade. Such colossal machines would dwarf today’s largest turbines and could unlock energy production scales previously thought impossible. As the prototype enters its testing phase, the industry eagerly awaits, hoping for success that could chart a new course for renewable energy worldwide.

Don’t miss anything!

Subscribe to our newsletter to stay up to date on the wind energy industry.

Sign Up

Related articles

Wind News
Baltic Eagle soars – How one offshore wind farm is powering the future

Baltic Eagle soars – How one offshore wind farm is powering the future

Operations
Port of call – Navigating the future of offshore wind farming

Port of call – Navigating the future of offshore wind farming

Wind News
Provence Grand Large – France’s first floating wind farm

Provence Grand Large – France’s first floating wind farm