NHEC Call Center Closed December 30, January 2 by NHEC | Dec 30, 2022 | Uncategorized The NHEC Call Center will be closed on Friday, December 30, 2022 and Monday, January 2, 2023. Bill payments, outage reporting and help for electrical service issues are available 24/7/365 by calling 1-800-698-2007, online at www.nhec.com, or via the SmartHub app. Have a happy and safe New Year!