NHEC Closed November 11 for Veterans Day by NHEC | Nov 10, 2020 | Uncategorized NHEC and the NHEC Member Solutions Call Center will be closed in observance of Veterans Day on Wednesday, November 11, 2020. Members can still make automated payments on SmartHub or by calling 800.698.2007. The NHEC Control Center is staffed 24/7. To report an outage, please call 800.343.6432.