Answer extracted from the The Future of Utilities Podcast — listen to the full episode below.
Why are data centers increasingly connecting to gas networks instead of waiting for electricity connections?
Data centers are turning to gas networks because electricity infrastructure connections can take up to 15 years, a timescale that simply doesn't align with their operational needs. Gas networks remain an active growth area, currently connecting more new customers than they disconnect, making them a pragmatic alternative for data center power infrastructure.
The electricity infrastructure bottleneck
The fundamental challenge driving this shift is timing. Traditional electricity grid connections require extensive infrastructure planning, permitting, and construction—a process that can stretch over more than a decade. For data centers, which operate on much tighter deployment schedules, this timeline is prohibitive.
Gas networks, by contrast, already have established distribution infrastructure across the UK, with the capacity to onboard new large users more quickly. This doesn't mean gas is a permanent solution for data centers, but rather a practical bridge while electricity grids catch up to demand.
Gas networks remain operationally active
As explained in this episode, gas networks are currently adding more connections than they're losing. This resilience in network growth creates genuine capacity for new industrial consumers, including large power-intensive facilities like data centers.
This dynamic represents a strategic opportunity for gas operators to remain relevant as the energy system evolves. Rather than declining into legacy status, gas networks are being repositioned as a flexible, rapid-deployment option for time-sensitive infrastructure projects.
"It has a fundamental role to play across a lot of different end uses, whether that be in power generation when renewables output is low, or in industry that need really high temperature processes."
James Earl — Chief Executive, Future Energy Networks. Earl oversees the UK's entire gas network ecosystem, representing National Gas and four regional gas distribution networks across Great Britain, plus Northern Irish Gas Networks. His dual expertise in both gas and electricity infrastructure gives him unique insight into how these two energy vectors must coexist and complement one another as the energy transition accelerates.
The deeper context—how gas networks achieve their exceptional reliability and why they're engineered for peak demand scenarios—is explored further in the full episode, along with the role of green gases in this evolving picture.
Key takeaways
- Electricity grid connections face 15-year lead times, making them impractical for data center deployment schedules.
- Gas networks are currently growing their customer base, not shrinking, creating available capacity for new industrial users.
- Gas serves as a rapid-deployment alternative while electricity infrastructure expands to meet demand.
- Data center demand represents a new growth vector for gas networks in the energy transition era.
See also
How can green gases like biomethane complement renewable electricity in future energy systems?
According to James Earl, biomethane is already integrated into the grid today at about 1% of gas use, and could potentially meet between a fifth or a sixth of current gas demand in the future.
What reliability standard do gas networks achieve during extreme weather conditions?
Gas networks are designed to a 1 in 20 resilience standard, which means they can cope with the coldest weather conditions that could possibly be expected in a 20-year period.
What is NISO's commitment to the development of flexibility markets?
This is a core part of NISO's mission, role, purpose and vision to deliver growth in flexibility and growth in these markets. It is not something temporary.