Power Interruption Insurance refers to the coverage that pays businesses for any damages they incur during a power outage. However, several other terms apply to this type of policy, including Power Failure Insurance and Electrical Power Interruption Insurance. Moreover, Electric Utility Service Interruption Insurance is another synonym for Power Interruption Insurance that exists. While these synonyms seem similar, each one has a unique definition and is used for different types of policies. Regardless of the synonym you choose, the primary purpose of this coverage is to help businesses mitigate their losses during an interruption to their electrical utility services.