A groundbreaking pilot project in Sweden, led by Telia and the Swedish Post & Telecom Authority, has showcased the potential of hydrogen in extending the backup power duration of mobile sites. The project conducted trials at a Telia site outside Stockholm, using a unique combination of hydrogen, fuel cells, solar cells, and batteries. Traditionally, mobile sites rely on batteries and diesel generators for backup power, but this project introduces a more sustainable and resilient solution. The hydrogen used in the project is produced on-site using renewable energy sources, emphasizing the focus on sustainability. By enhancing backup power capabilities and reducing reliance on the electricity grid, the project aims to ensure constant coverage for mobile users, businesses, and defense even during prolonged power outages. Telia's Head of Infrastructure, Staffan Åkesson, highlights the importance of developing robust and sustainable solutions to meet the challenges of today while preparing for the future. This innovative project, financed by the Swedish Post & Telecom Authority and involving key industry partners, aligns with Telia's commitment to achieving net-zero greenhouse gas emissions by 2040. The project is a testament to the increasing significance of hydrogen in the energy transition towards a net-zero society, as highlighted by the EU's goals for renewable hydrogen by 2050. The project is set to conclude in December 2025, offering valuable insights and paving the way for more sustainable and resilient infrastructure in the telecommunications sector.