We introduce the concept of nuclear battery, a standardized, factory-fabricated, road transportable, plug-and-play micro-reactor. Nuclear batteries have potential to provide on-demand, carbon-free, economic, resilient, and safe energy for distributed heat electricity applications in every sector economy. The cost targets these markets are 20–50 USD/MWht (6–15 USD/MMBTU) 70–115 USD/MWhe electric...