NHUT (static non-homothetic equality model with non-neutral fuel efficiency bias) is the author's preferred specification for all seven countries; the electricity own-price elasticities come from Table 6 (NHUT) || 'the specification preferred for all seven countries was the static non-homothetic equality model allowing for the possibility of individual fuel efficiency bias' (p.84); 'under the highest likelihood value criterion, the least restricted non-dynamic model NHUT had to be preferred for all seven countries' (p.81)
Hall, B. (1986): “Major OECD Country Industrial Sector Interfuel Substitution Estimates, 1960-79.” Energy Economics 9(2), 74-89