Fossil fuels release excess greenhouse gases into the atmosphere, causing abnormal rates of planetary warming. Mitigating further greenhouse gas emissions will require increasing penetration of non-dispatchable renewable energy sources like solar and wind power. Princeton University’s Net Zero America E+RE+ pathway outlines a carbon-neutral US economy reliant on solar and wind power. Configurations are driven by least-cost objectives and constrained by land availability, rendering the infrastructure plausible but not necessarily resilient. In this study, we assess the resilience of the E+RE+ pathway to extreme heat events during which energy demand surges. We identify high-risk heat days as days with: (i) 85th percentile temperature anomalies in a region of interest, and (ii) 85th percentile population weighted cooling degree days. We compare solar and wind resource on high-risk heat days to all days using historical estimates (1979-2019) and model projections of the late 21st century to assess whether surging demand on high-risk heat days might be matched by E+RE+ renewable infrastructure. We perform analysis in several US regions. In Texas, we find that increasing wind and solar resource on high-risk heat days make it likely that surging energy demands will be matched by non-dispatchable E+RE+ renewable infrastructure. In Florida and in northeastern/midwestern US states, we find that increases in solar power on high-risk heat days compensate for reduced or average windspeeds, likely matching energy demand on high-risk heat days given a mid-range climate mitigation scenario; although, we worry that in more severe climate change scenarios it will fail to do so.