EnerVault deploys grid-scale flow battery for energy storage

EnerVault officially dedicates EnerVault Turlock, the first grid-scale iron-chromium redox flow battery deployed in the world

EnerVault has officially dedicated its EnerVault Turlock demonstration project, the first grid-scale iron-chromium redox flow battery deployed in the world. The long-duration energy storage system, which was developed using private and public funding, will help stabilize the grid and hold energy from a solar photovoltaic plant to power an industrial irrigation system in Central Valley, California.

The U.S. Department of Energy and California Energy Commission both provided  research and development grants for the EnerVault long-duration storage system, which is designed as an efficient and cost effective solution for resilient grids as the  nation increasingly generates energy from renewable sources like wind and solar.

EnerVault’s innovative energy storage system is based on the company’s patented Engineered Cascade™ technology that transforms inherently safe redox flow battery chemistry into highly economic and reliable storage solutions. EnerVault CEO Jim Pape likened the technology to a regular battery turned inside out. Further, EnerVault’s flow batteries are manufactured with iron and chromium, which are both extremely abundant and therefore cheap to utilize. 

“The EnerVault Turlock system demonstrates the viability of iron-chromium redox flow batteries at the grid-scale,” said Imre Gyuk, DOE Energy Storage Program Manager. “Long-duration energy storage, like EnerVault’s, is the lynchpin to grid stability as we achieve high penetration of renewable energy.”

California has prioritized the use of energy storage in boosting grid efficiency and supporting renewable energy. In 2013, the California Public Utilities Commission (PUC) enacted the first energy storage mandate in the United States. Under the new mandate investor-owned utilities will be required to purchase at least 200 megawatts (MW) of energy storage by 2014 and 1,325 MW by 2020.

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