Energy Source

Customer service

Telephone: +351 220 110 055 (Chamada para a rede fixa nacional)
Adress: Lugar do Espido – Via Norte, 
                Apartado 3053, 
                4471-907 Maia, Portugal

ERSE (Energy Services Regulatory Authority) aims to regulate the natural gas and electricity sectors. For more information see the website of ERSE.



OLMC manages the process of changing the supplier of electricity and natural gas, encouraging the transparency of the electricity and natural gas markets, providing final consumers with easy access to the information to which they are entitled. ADENE - Agência para a Energia, is the national entity responsible for the exercise of the activity of OLMC, within the National Electric System (SEN) and the National Natural Gas System (SNGN).

Poupa Energia

The Poupa Energia website is a comparison of electricity and natural gas tariffs. The purpose of this platform is to provide consumers with an instrument that allows them to make a sustained choice of supplier, promoting best practices and efficiency in energy consumption.



In the event of a conflict regarding the interpretation, application or performance of the contract concluded, the client may submit its resolution to the competent courts or resort to necessary arbitration, pursuant to the provisions of the Law on Essential Public Services and to this end, use one of the following entities:


Environmental impacts:

Check in our sustainability area the environmental impact of our activity. 


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