Sizable

Sizable Energy

This company develops offshore pumped-hydro storage systems for energy utilities, grid operators and renewable energy developers.

AquaBattery

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

Energiasalv

The company develops underground pumped hydro energy storage systems for grid operators and electricity consumers to manage renewable energy fluctuations.

RheEnergise

This company develops high-density hydro energy storage systems using dense fluids for grid operators and industrial infrastructure owners with high power demands.

AIRFUSE SAW

This company develops long-duration iron-based redox flow batteries to provide energy storage and grid resilience for renewable energy operators and utility infrastructure.

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.

Endurance

This company develops subsea geothermal power systems to provide baseload electricity for coastal data centres, naval installations and island nations.