Aquion, Siemens link for storage test

US energy storage developer Aquion Energy has set the seal on a memorandum of understanding (MoU) with German industrial giant Siemens to test its aqueous hybrid ion (AHI) battery technology for future grid-scale systems.

Through the MoU, Aquion's AHI battery system – based around a saltwater electrolyte, sodium ions, an activated carbon anode and manganese-oxide cathode, and cotton separator – would be trialled as an integrated part of Siemens’ Sinamics S120 drive technology.

"We want to explore the AHI technology proposed by Aquion, validate its capabilities and potential for offering cost effective grid-scale deployments and energy-efficient microgrid and renewables support functions,” says Razvan Panati, director of new technologies at Siemens Industry.

"Our intention is to support the development of a fully integrated AHI-based energy storage systems using our scalable, industry proven, off-the-shelf inverter technology.”

Siemens’ Sinamics S120 inverter solution and Aquion’s 18kW AE12 battery module product are currently under high voltage test at Aquion’s R&D facility in Pittsburgh, and will undergo additional joint testing at Siemens’ Alpharetta, Georgia facility. 

Aquion produces beta AHI battery systems at its 200MW manufacturing facility in Westmoreland County, Pennsylvania, with commercial production slated to begin in the first half of 2014.