Fact sheet describes the Customer Damage Function (CDF) Calculator, a free, publicly available web tool that helps users estimate the costs incurred at their site due to an electric grid or water service outage.

Developed by the National Renewable Energy Laboratory with support from the Federal Energy Management Program, the CDF Calculator is designed to help federal facility owners, building energy managers, and resilience planners understand and quantify the value of resilience to justify investments that would prevent or lessen the impact of a disruption.