The electric sector is in a period of rapid change, with electricity increasingly used in sectors like transportation and space heating that traditionally used fossil fuels. At the same time, the share of generation from variable renewable and energy limited resources is growing. These changes are expanding the footprint of weather on the electric system, with extreme operating conditions being driven by more weather variables across broader geographies. For instance, weather impacting wind and solar generation potential across all locations where renewable plants are currently present and may be built in the future has become important. The fact that a stationary climate can no longer be assumed adds an additional dimension of risk and uncertainty to the challenges that increasing weather impacts associated with the energy transition present.