Service Support to Energy Users Last update on 27-04-2016 Read more Contacts LISBON Phone 21 303 32 00 Fax21 303 32 01 Email email@example.com WebsiteLink ScheduleWeekdays from 08: 00h to 20: 00h. Phone 808 10 20 10 WebsiteLink ScheduleWeekdays from 15: 00h to 18: 00h. Competent authorities Regulatory Authority for Energy Services The information presented is the responsibility of the competent authorities. The contents were translated automatically by use of a tool that is not perfect in all situations. Please refer to the terms and conditions of the portal.