Powering the future of aviation: why airport energy networks must evolve
Steve Muscat
Airports are undergoing a rapid shift in how energy is generated, managed and consumed, driven by electrification, decarbonisation and rising demand. Steven Muscat, Head of Engineering at UK Power Networks Services – and a member of AIR’s steering committee – explores how new technologies, alongside a growing recognition of resilience and safety needs, are reshaping aviation energy networks.
Of course, airports have always depended on reliable electricity, but the role of energy networks in aviation is changing fundamentally. What was once largely invisible utility infrastructure and skilled support teams, are now central to operational performance, sustainability and long-term resilience.
For decades, energy infrastructure providers such as UK Power Networks Services have supported major UK airports including Heathrow, Gatwick and Stansted, maintaining the complex electrical systems behind runway lighting, baggage handling and terminal operations. While reliability remains essential, the context in which these systems operate has shifted significantly.
Airport energy networks were traditionally designed around predictable demand and centralised supply. That model is now under pressure from the UK’s continuing electrification, decarbonisation and a more decentralised energy system. As a result, energy infrastructure is becoming more visible, more complex, and more strategically important.
A shifting energy landscape
Several converging trends are reshaping airport energy demand. Passenger growth and airport expansion continue to increase electricity consumption, while decarbonisation targets are accelerating the transition to electrified systems across operations.
This shift extends beyond the terminals. Ground support equipment, airside vehicles and landside transport are rapidly turning to electricity, creating new and often substantial loads that legacy networks were not designed to accommodate.
image: UKPNS
At the same time, we are working within a wider energy system that is changing. Increased reliance on renewable generation such as wind and solar supports decarbonisation but introduces variability into supply. Airports, which require continuous, high-quality power, must now manage a more dynamic balance between supply and demand.
These combined pressures mean conventional energy planning approaches are no longer sufficient. Airports now require infrastructure that is flexible, scalable and capable of operating within a more distributed and unpredictable energy ecosystem.
Energy infrastructure is becoming more visible, more complex, and more strategically important
Technology enabling transformation
Technology is central to meeting these challenges and private wire microgrids are one of the most significant developments. By combining local behind-the-meter generation, battery storage and smart controls, they help airports manage peak demand, integrate renewables and maintain continuity during grid disruptions.
Digitalisation is also transforming network operation. Real-time monitoring, advanced analytics and control systems enable operators to optimise performance, integrate new assets and respond more quickly to issues. Predictive analytics is increasingly used to identify potential faults before they escalate, reducing unplanned outages and improving reliability across critical systems.
Building a high-tech digital twin and advanced modelling further strengthen planning capability. These tools allow airports to simulate scenarios such as extreme weather, equipment failure or demand spikes, enabling operators to test resilience strategies without affecting live operations.
Automation is also improving response times. Self-healing networks and automated switching systems can isolate faults and reroute power within seconds, maintaining continuity for essential airport functions.
However, integrating these technologies into operational airports requires careful, phased deployment. Airports are complex, live environments where upgrades have to be delivered without disrupting safety or service continuity.
Resilience and safety as core priorities
In aviation, resilience is essential. Even brief power interruptions can have major operational and reputational consequences, affecting passengers, airlines and airport systems for extended periods.
As a result, resilience has become a strategic priority rather than a purely technical requirement. It is now closely linked to growth, reliability and reputation. Modern airport energy systems must therefore be designed not only with redundancy, but also with adaptability in mind.
Our challenge is significant; to create energy networks that are more efficient and resilient, but also foundational to a lower-carbon future for aviation
This is driving a shift toward diversified energy sources, enhanced monitoring and more flexible network architectures. The ability to respond dynamically to changes in both demand and generation is now as important as traditional backup capacity.
Safety remains equally critical. Airports operate high- and low-voltage electrical systems in close proximity to passengers, aircraft and essential infrastructure. This requires rigorous design standards, continuous monitoring and strict operational discipline across the entire energy lifecycle.
Looking ahead
The future of airport energy networks will be defined by integration. Airports must balance rising demand, decarbonisation goals and resilience requirements within increasingly interconnected energy systems.
This will require closer collaboration between airports, energy providers and technology partners, supported by long-term planning that aligns infrastructure investment with evolving operational needs.
Energy networks will play a central role in enabling the next phase of aviation growth. By combining new technologies with robust engineering, prioritising resilience and maintaining uncompromising safety standards, airports can build systems capable of supporting sustainable expansion.
Our challenge is significant, but so is the opportunity: to create energy networks that are not only more efficient and resilient, but also foundational to a lower-carbon future for aviation.
Steve Muscat is Head of Engineering at UK Power Networks Services and Chief Operating Officer at UK Renewables Energy Group