(Read Time: 25 minutes). This guide includes information from water industry professionals on how to increase power resilience at drinking water and wastewater utilities. The purpose of this guide is to promote coordination and communication between water sector utilities and their electric and gas utilities; provide information on how to build power resilience using generators, fuel supply planning, on-site power, microgrids and other methods; highlight case studies from water utilities that have successfully implemented power resilience measures; and identify planning considerations and resources for both short (e.g., 2-3 days) and long (e.g., several weeks) duration power outages.