Deep energy retrofit (DER)

Abstract

Major building renovations provide an excellent opportunity to implement DER projects, since much of the work necessary to prepare the DER is to be done anyway: the building is typically vacated and is gutted; scaffolding is installed; single-pane and damaged windows are often scheduled for replacement; building envelope insulation is considered; and most of mechanical, electrical lighting, and energy conversion systems (e.g., boiler and chillers), and connecting ducts, pipes, and wires will be replaced anyway. Therefore, a significant sum of money covering the cost of energy-related scope of the renovation designed to meet minimum energy code. In this chapter an overview is provided on the major components to be considered in a Deep Energy Retrofit (DER), their cost effectiveness and findings from accomplished DER projects.