Question to the Department for Science, Innovation & Technology:

To ask the Secretary of State for Science, Innovation and Technology, what proportion of mobile phone mast sites servicing rural areas have alternative power generation or a battery back-up that can be accessed during an unplanned power outage.

Government does not hold this level of detailed information. Mobile network operators have legal obligations to put in place appropriate and proportionate measures to ensure the resilience of their networks and services. This is overseen by the independent regulator Ofcom, who have powers to monitor compliance, conduct investigations, issue penalties and enforce remedial actions.

Residents in all areas of the country, rightly expect to have reliable mobile connectivity to participate in the modern digital economy. The Government recognises that events like storms and power outages can have a particular impact on rural communities. That is why, with support from the Government Ofcom have completed a public consultation on power back-up for mobile services across the UK, which identified a particular impact on rural communities. They published an update on their work in February 2025 and announced they are completing further analysis to determine the appropriate and proportionate measures required to ensure adequate resilience for consumers. Government looks forward to Ofcom concluding this work as soon as possible.

Government is also supporting collaboration between the electricity and telecommunications sectors to deliver measures so that when power cuts occur the likelihood of disruption to telecommunications services is as low as possible, and where disruption does occur it should affect as few people for the shortest possible time. This will include all areas of the country and will help strengthen resilience of mobile networks.