Photo of AR500 during installation in the Naru Strait, located between the islands of Naru and Hisaka in the Goto Island chain (Courtesy of Kyuden Mirai Energy)

SAE’s tidal turbine passes pre-use inspections test in Japan

Simec Atlantis Energy’s (SAE’s) tidal energy generation system in Naru Island, Japan, has passed the Japanese government’s pre-use inspection tests.

AR500 during installation in the Naru Strait (Courtesy of Kyuden Mirai Energy)

As a result, the site with the AR500 tidal turbine has been recognised as an official power generation facility, the company informed.

Working together with its client Kyuden Mirai Energy (KME), the SAE teams in the UK and Japan have taken the tests administered by the Ministry of Economy, Trade, and Industry (METI).

Some of the tests involved in the process included:

  • meeting the turbine’s stated performance characteristics during peak tidal flow conditions
  • demonstration of the ability to shut down the system safely during the highest annual flow rates
  • temporary resilience to an auxiliary power loss from shore event and safe shutdown in the instance of an extended outage
  • full testing of the turbine’s rapid shutdown capability in response to an emergency stop trigger from shore.

The turbine tests, which were passed during one of the strongest tides expected this year, follow the process of inspection and verification of both the onshore facility and offshore equipment against national electrical standards.

AR500 tidal turbine has been generating electricity since it was installed in January 2021 and has generated more than 90MWh of power.

“I am extremely proud of the entire team who worked tremendously hard to get the project to where it is today”, said Graham Reid, CEO at SAE.

We are all delighted to have achieved this accreditation from METI as this confirms the capability and reliability of our technology and is a huge step forward in paving the way to the next phase of this exciting project and other future projects in Japan.”