Scalable Storage for our Renewable Future

Cratus LLC (Cratus) is a technology company that is commercializing molten-salt Thermal Energy Storage (TES) systems for use with:

  • Concentrating Solar Thermal Power (CSP)

  • Fossil

  • Nuclear power plants

  • Industrial processes

  • Data centers, and

  • Commercial buildings

Cratus is developing  ThermaBlox™ molten salt electro-thermal energy storage and conversion systems. ThermaBlox™ has smaller footprint and lower cost than lithium-ion battery packs, is safely transportable and is non-toxic.

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Modular | Scalable | Highest Output | Lowest Cost

ThermaBlox
  • Stackable system allows 100’s of MW’s of storage
  • Rapidly deployable and non-toxic
  • 20+ year life
  • Can be charged/discharged 1,000’s of times
  • ~3x lower cost/unit energy storage than lithium-ion batteries
  • Works with any power or heat source
  • 2 to 20 hours of storage
  • Operates at >30% higher temperature
  • Cratus’ ThermaBlox™ electro-thermal energy storage and conversion systems range from 2 to 5 MWhr.
  • Our 5MWhr storage systems weigh only 110,000 lbs. and fits inside a 40-foot container.
  • Our 2.5MWhr weighs only 55,000 lbs. and fits inside a 20-foot container.