For the past two decades, power management and delivery has been a bottleneck, limiting the size and performance of a range of applications from performance computing to mobile phones and wearables. In the coming decades, power electronics will become the ‘glue’ of the modern energy system network. With electronics embedded deeply into this network, well beyond the ‘grid edge,’ there will be new opportunities for control, management, diagnostics, and system integration.  This talk will motivate the need for 2+ decades of power electronic research to solve key application challenges, circuit and passive component limitations. There is a need to explore architectures well beyond conventional ‘buck’ and ‘boost’ converters; more specifically, topologies that leverage next-generation higher-energy-density passives including capacitors and piezoelectric resonators. We will discuss past efforts that have broken previous barriers in performance and size as well as future trends and opportunities to continue breaking these barriers.