  The reliability of energy systems is strongly influenced by the prevailing
climate conditions. With the increasing prevalence of renewable energy sources,
the interdependence between energy and climate systems has become even
stronger. This study examines the impact of different spatial resolutions in
climate modeling on energy grid reliability assessment, with the Texas
interconnection between 2033 and 2043 serving as a pilot case study. Our
preliminary findings indicate that while low-resolution climate simulations can
provide a rough estimate of system reliability, high-resolution simulations can
provide more informative assessment of low-adequacy extreme events.
Furthermore, both high and low-resolution assessments suggest the need to
prepare for severe blackout events in winter due to extremely low temperatures.
