Portugal's Energy Services Regulatory Authority (ERSE) has granted approval for a pilot project aimed at injecting hydrogen for testing purposes into the National Gas Transportation Network. This development indicates a significant move towards investigating the potential of hydrogen as an energy source in Portugal. While the specific details of the pilot project are not provided in the brief excerpt, it is evident that Portugal is actively considering the utilization of hydrogen in its energy infrastructure. This aligns with the broader European trend of exploring hydrogen as a cleaner alternative in various sectors. The decision by ERSE to greenlight this pilot project suggests a positive outlook on hydrogen's role in the country's energy mix. It reflects a proactive approach towards innovation and sustainability in Portugal's energy sector. The move also signals a step towards diversifying energy sources and reducing carbon emissions, in line with broader environmental goals and energy transition strategies.