US iron flow battery company ESS said it received the highest level of IEEE 693 certification for its Energy Center (EC) flow battery. The certification is a widely-accepted seismic rating for energy infrastructure.
It said it demonstrates the EC can withstand acceleration up to 2.5 times the force of gravity and still provide power during major seismic events.
The company claimed it is the first non-lithium long-duration energy storage (LDES) provider to receive such a rating. Testing was conducted by the Pacific Earthquake Engineering Research Center at the University of California, Berkeley. It included a shake table test of ESS battery module assemblies and thorough evaluation of the EC design.
ESS chief technology officer, Dr. Julia Song, said: “We are committed to providing resilient, high quality energy storage solutions that customers can rely on when they need them most, especially during extreme weather or natural disasters.”
Regions such as California have much renewable energy that is also susceptible to significant earthquake activity. Its energy storage technology must be able to withstand seismic events without sustaining damage or causing power interruptions, said ESS.
The company added it has ETL certification to UL 9540 for the Energy Warehouse battery and UL 9540A and UL 1973 standards for core technologies. These have been incorporated into the EC. ETL certification to UL 9540 is underway for the EC battery.
Photo: ESS lifting its first EC into place. This inaugural system will be delivered to Portland General Electric later this year. ESS
