The following submission statement was provided by /u/redingerforcongress:

> Named Crimson Storage, the site holds 350 MW / 1400 MWh of standalone battery energy storage, delivering flexible power to California’s grid.

> The project is held by a fund managed by Axium (80%) and Recurrent Energy (20%).

> During construction, the project employed about 140 union workers, including International Brotherhood of Electrical Workers, International Union of Operating Engineers, Laborer’s International Union of North America, and the International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers Union.

> Upon activation, Crimson Storage became the largest active single-phase storage project in the world, and second-largest energy storage project currently in operation of any configuration. The project holds two long-term contracts with utilities Southern California Edison and Pacific Gas and Electric. Both contracts are part of reliability mandates made by the California Public Utilities Commission (CPUC).

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/y7cqv1/the_worlds_largest_singlephase_battery_is_now/istqbts/