In episode of the USEA Power Sector Podcast’s series on energy storage, John O’Donnell, CEO of Rondo Energy, answered questions from journalist Herman K. Trabish about the thermal energy storage technologies that capture and store heat, the mechanics of thermal energy storage and Rondo’s “heat battery,” about why this concept may be vital to eliminating carbon emissions, and what may be just over the horizon for Rondo and other thermal energy storage technologies.