The loglinear specification is the author's headline/preferred estimate; its elasticity is quoted first in the abstract-level conclusion and used for all policy computations (dividing by 0.15 to get -0.029) || 'a price elasticity of -0.0043 follows from the loglinear specification. In both cases the elasticity is low ... The resulting figure of -0.029 (for the loglinear relationship)' (p.255-256)
Lijesen, M. G. (2007): "The real-time price elasticity of electricity." Energy Economics, 29(2), 249–258.