Abstract: Methods, systems, and apparatus, including computer-readable storage devices, for predictive models for electric power grid maintenance. In some implementations, one or more computers receive data indicating a maintenance action to be performed for a utility system (e.g., an electric power delivery system, a water system, a gas distribution system), a location for the maintenance action, and environmental conditions at the location. In some examples, the one or more computers also receive data indicating a training level, incident history, or health status of a worker assigned to perform the maintenance action. The one or more computers generate outcome scores for the maintenance action using a model generated from records for maintenance performed by multiple utilities. The one or more computers access mapping data indicating a mapping of the multiple types of potential outcomes with a plurality of maintenance plan elements.