Certain Energy

Form Energy

This company develops rechargeable iron-air batteries that provide multi-day energy storage for electric grid operators and utility providers.

Invinity

This company manufactures vanadium flow batteries for utility-scale, commercial, and industrial customers seeking long-duration energy storage and grid-independent power solutions.

AquaBattery

This company develops saltwater flow batteries for long-duration energy storage, serving renewable energy providers and industrial grid operators.

Quino Energy

The company manufactures water-based organic flow batteries for commercial and grid-scale energy storage applications.

Ore Energy

The company develops iron-air batteries for long-duration energy storage to support renewable energy grids, utilities, and industrial power users.

Delectrik Systems

This company manufactures vanadium redox flow batteries for commercial, industrial and utility customers to store renewable energy and support electricity grids.

SINERGY FLOW

The company develops sulfur-based redox flow batteries for long-duration energy storage to support electricity grids and renewable energy providers.

Quidnet Energy

This company develops geomechanical pumped hydro storage systems for electric grid operators and utility providers to enable long-duration energy storage.