The US Department of Energy's DAYS program is aiming to stimulate investor interest in new long duration energy storage systems, with startups like Antora Energy working on innovative solutions like thermophotovoltaic devices. Antora, a company focused on renewable energy solutions, uses renewable electricity to heat solid carbon blocks for energy storage and delivery, achieving high conversion efficiency and receiving significant funding for commercial scaleup. They are working on partnerships with companies like POET and Shell for various applications, and have received awards for energy storage partnerships, including one with Con Edison in New York. Con Edison has selected thermal energy storage, electric boilers, and industrial heat pumps as technologies to drive its steam decarbonization efforts, with the potential to electrify up to one third of total steam capacity by 2035. Antora's thermophotovoltaic "heat batteries" have the capability to store renewable energy for transfer into electricity or heat, powering industrial operations and contributing to the overall decarbonization journey.