The AR1100, part of PMR’s Series 2 turbine line, builds on the success of the AR500 pilot project, which achieved 97% availability in 2021. Featuring advanced pitch and yaw control systems, the AR1100 supports its 1.1-megawatt capacity and paves the way for the 3-megawatt AR3000 turbine, planned for deployment in 2028. Drew Blaxland, CEO of Proteus Marine Renewables, stated: “Receiving METI certification is a major milestone—not only for Proteus, but for tidal energy in Japan. It confirms the AR1100 series 2’s compliance with Japan’s rigorous safety and technical standards and demonstrates that tidal power is now a viable, scalable solution for clean electricity generation.”
The project was executed in collaboration with Kyuden Mirai Energy (KME), the lead partner for the deployment. Philip Archer, Managing Director of Proteus Operations Japan, noted: “We’ve operated in Japanese waters before, so we know just how demanding the conditions can be. Seeing the AR1100 successfully installed, certified, and starting to deliver power to the grid is a very satisfying moment for the team. It also shows how far the technology has come—and gives us valuable insight and validation as we prepare for the next step with the AR3000.”
The AR1100 features a three-blade horizontal-axis rotor, an electromechanical pitch control for optimized power output, and a hydraulic yaw system to adapt to tidal flow changes. Mounted on a gravity-based foundation, it connects to the shore via a subsea cable. In February, PMR installed the turbine in the Naru Strait, Japan, marking it as the first company to operate megawatt-scale tidal turbines in two countries.
PMR and KME are exploring additional tidal energy opportunities in Japan to expand clean energy production. In March, PMR joined the Ocean Energy Europe (OEE) Board of Directors, with Blaxland representing the company as a Lead Partner. PMR, now an independent tidal energy firm after a majority stake sale in SIMEC Atlantis Energy’s Advanced Tidal Engineering and Services division, continues to focus on advancing marine renewables.
