Electrification of transport compounded with climate change will transform
hourly load profiles and their response to weather. Power system operators and
EV charging stakeholders require such high-resolution load profiles for their
planning studies. However, such profiles accounting whole transportation sector
is lacking. Thus, we present a novel approach to generating hourly electric
load profiles that considers charging strategies and evolving sensitivity to
temperature. The approach consists of downscaling annual state-scale sectoral
load projections from the multi-sectoral Global Change Analysis Model (GCAM)
into hourly electric load profiles leveraging high resolution climate and
population datasets. Profiles are developed and evaluated at the Balancing
Authority scale, with a 5-year increment until 2050 over the Western U.S.
Interconnect for multiple decarbonization pathways and climate scenarios. The
datasets are readily available for production cost model analysis. Our open
source approach is transferable to other regions