Winter weather events pose increasing threats to America’s electric power infrastructure, with storms like Winter Storm Uri demonstrating catastrophic consequences. This project focuses on planning electric power systems in cooperative and municipal utilities in the Midwest for maximum reliability and resilience in the winter. Winter resilience in electric power requires understanding future winter weather (annual average snowfall, temperature, ice, and their extremes), as well as changes in electricity supply and demand during the winter (electric heat pump adoption, electric vehicle demand, and inverter-based resources). In regions like the Midwest, where the security of heating and power systems in winter is key to human health and welfare, it is especially important to use the best available Earth system science and engineering tools in planning. This project engages with electric utilities in the Midwest in order to understand the industry’s needs for science tools to plan for winter resilience in the future, designing tools that will benefit electric power resilience in all communities. The project uses stakeholder engagement tools to connect Earth system science with practitioners (municipal and cooperative utilities in the Midwest), to apply Earth system modeling and engineering tools to real systems, and to identify how investments in training, the standardization of toolkits, and customized resilience analysis can support these institutions. This project aims to