Concrete Thermal Energy Storage that Keeps the Lights On


BolderBloc™ Module

  • Patented high performance concrete and steel tube systems
  • Proven to operate at up to 600°C
  • Low cost, modular, factory built, assembled on site
  • Configurable for every thermal generation design
  • Unique concrete formula utilizes fly ash, minimizing environmental impact

Thermal Energy Storage (TES) Charge and Discharge

  • Boiler steam or hot gas, depending on application, flows in one direction through the TES, heating the concrete
  • Charging process creates a thermocline, highest temperature at charging inlet
  • Water pumped in opposite direction to discharge, resultant steam exits TES at ~hot end temperature, delivering consistent high-quality steam