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Comparison of data-driven building energy use models for retrofit impact evaluation
Healthy, Intelligent and Resilient Buildings and Urban Environments
A change-point (piecewise linear regression) model fitted to the pre-retrofit data as the counterfactual for the savings calculation, is considered to be the best approach to evaluating the energy savings of building retrofits ( ASHRAE Guideline 14). However, when applied to a large portfolio savings analysis with substantial multi-year data, the change-point model does not fit the data well in some cases. The study thus aims to improve the accuracy of the changepoint model by: 1) using moredoi:10.14305/ibpc.2018.ms-6.02 fatcat:a4ubbpq3yvfclk6ljpnpezi3ry