This document introduces readers to the benefits of integrating energy efficiency with other distributed energy resources to achieve resilience benefits. It describes two DOE tools that each provide high-level assessments of the size and potential cost of onsite energy systems that can power critical facilities, and presents case studies with completed analysis on potential energy investments at existing facilities managed by three partners in DOE’s Better Buildings Challenge.

Two appendices include step-by-step guidance and considerations for how readers can conduct new analysis for their own facilities using freely available DOE tools. The appendices are written for new users of each tool that want to conduct resilience analysis for their own buildings similar to the cases presented in this guide.