Service Conflicts in the natural gas sector - resolution using the ERSE Last update on 28-04-2012 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. More info Legislation Transforms the Regulatory Authority for the Electricity Sector Regulatory Authority in the Energy Services and approves the respective statutes. 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.