• With such a wealth of information here at SWAN, we want to make it easier for you to find the knowledge you seek as quickly as possible.

  • Lighthouse uses some of the most advanced AI language models to understand your questions and sifts through SWAN's entire knowledge base to find an answer. We have carefully trained it to present relevant information in a consolidated way.

  • As you navigate an ocean of information, let Lighthouse be your beacon.

  • Disclaimer: We cannot always guarantee complete or accurate responses, given that AI-powered dialogue is still an emerging technology. Lighthouse will always accompany answers with the most relevant references, which we encourage you to check out. We highly value your feedback to ensure that Lighthouse meets the highest standards of quality and reliability. If you notice something off, please contact us at:

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    SWAN Members enjoy full access to Lighthouse (unlimited searches and gated content) along with global membership benefits.

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ERSAR aims to:

  • Ensure protection of water and waste sector users, always trying to avoid abuses resultant from the exclusive rights, focusing on control of the quality of services provided and supervising tariffs charged to end-users;
  • Ensure equal and transparent conditions in access to water and waste services and the operation of these services;
  • Reinforce the right to general information about the sector and each operator.

Rua Tomás da Fonseca, Torres de Lisboa, Torre G, 8, Lisbon, Portugal

Paulo Faroleiro
Head of Management, Information and IT

SWAN Members may view email address.