Authors' preferred spec is the one-price FE model giving elasticity -0.8; AIDS peak/off-peak -1.47/-1.87 are secondary replications of Filippini || 'Our preferred specification for the estimation of the price elasticity of demand is a fixed effects regression model' (p.97); 'we find a price elasticity of electricity consumption equal to -0.8, a result remarkably in line with the previous literature' (p.92, p.101)
Auray, S., V. Caponi, B. Ravel (2019): "Price Elasticity of Electricity Demand in France." Economie et Statistique / Economics and Statistics, 513, 91-103.