Abstract/Table 6 headline: elasticity of demand w.r.t. both marginal and average price is -0.003, statistically and economically indistinguishable from zero; these are the paper's preferred 2SLS estimates || 'We find similar point estimates for the elasticity of electricity demand with respect to both marginal and average price: -0.003. Both estimates are not statistically or economically different from zero.' (p.216)
Byrne, D. P., A. La Nauze, & L. A. Martin (2021): "An Experimental Study of Monthly Electricity Demand (In)Elasticity." The Energy Journal, 42(2), 175-192.