Release of Updated ICE Calculator: Phase 1

August 4, 2025

The ICE Calculator is a publicly available online tool that estimates the economic costs electricity customers experience due to power interruptions. It was first developed over 15 years ago for the U.S. Department of Energy by LBNL and Freeman, Sullivan & Co. The tool is used routinely by utility planners and decision-makers to estimate the economic benefits of investments in grid reliability.

The initiative to update the ICE Calculator is being conducted in phases. Each phase involves administering interruption cost surveys to the customers of sponsoring utilities, followed by an update to the ICE Calculator based on an analysis of the pooled survey results. This Phase 1 release was sponsored by eight utilities: American Electric Power, Commonwealth Edison, Dominion Energy, Duke Energy, DTE Electric, Exelon, National Grid, and Puget Sound Energy. Phase 1 involved 11 customer interruption cost survey activities, representing a total of 24 electricity distribution service territories, 23 of them located in the Eastern and Midwestern regions of the U.S., and one located in the Pacific Northwest.

This webinar provides an overview of the initiative and how to use the newly updated version of the ICE Calculator.