This document discusses scaling energy connections between buildings, cities, and vehicles. It argues that energy systems need to be interconnected and optimized at a larger, system-wide scale to reduce carbon emissions and create healthier communities. Currently, electricity, thermal energy, and liquid fuels are mostly fossil-based. The future state involves renewable-based electric systems and converting thermal and liquid fuels to electric. Challenges include transitioning utilities to a new business model focused on services instead of commodities and scaling efficiency and renewables significantly. Urban design also needs to anticipate future optimization at a larger scale beyond individual buildings. Current projects in Fort Collins aim to demonstrate smart energy systems, drive adoption of electric vehicles, and get ahead of transportation electrification.