No single headline own-price elasticity is stated; the national basic model (Model 1, Table 2) is the overall national estimate the author presents as 'range of accepted magnitude', so P=-0.168 (obs 1183) is the defensible headline. || 'Nevertheless, P, Y, and A all have elasticities that would generally be considered to reflect the range of accepted magnitude.' (p.126)
Garbacz, C. (1986): “Seasonal and Regional Residential Electricity Demand: A Micro-Based National Model.” The Energy Journal 7(2), 121-134