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Demand-Side Management and Energy Efficiency Revisited

Maximilian Auffhammer (), Carl Blumstein and Meredith Fowlie

The Energy Journal, 2008, vol. Volume 29, issue Number 3, 91-104

Abstract: The key finding of Loughran and Kulick (2004) is that utilities have been overstating electricity savings and underestimating costs associated with energy efficiency demand-side management (DSM) programs. This claim is based on point estimates of average DSM-related savings and costs implied by an econometric model of residential electricity demand. We first argue that the chosen test statistics bias results in favor of rejecting the null hypothesis that utility-reported savings reflect true values. We also note that utility estimates of average program savings and costs are rejected based on point estimates alone. We use the same data and econometric model to estimate the appropriate test statistics. We then construct nonparametric bootstrap confidence intervals. These intervals are quite large; we fail to reject the average electricity savings and DSM costs reported by utilities. Our results suggest that the evidence for rejecting utility estimates of DSM savings and costs should be re-interpreted.

JEL-codes: F0 (search for similar items in EconPapers)
Date: 2008
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