Headline: 'In all four zones and ERCOT as a whole, load demanded is price inelastic to DAM and RTM pricing with DAM prices being slightly more elastic' (Findings, p.260); ERCOT Table-3 values are the system-wide summary.
Damien, P., Fuentes-Garcia, R., Mena, R. H., & Zarnikau, J. (2019): 'Impacts of day-ahead versus real-time market prices on wholesale electricity demand in Texas.' Energy Economics, 81, 259-272.