Are Data Center Buildouts Straining Energy Supplies?
Data center growth is reshaping our energy landscape. Explore its implications for the future of infrastructure and investment.
The power grid wasn't built for this. When utilities designed regional transmission infrastructure decades ago, nobody modeled for the possibility that a single campus in northern Virginia or central Iowa would draw 500 megawatts — roughly the output of a mid-sized coal plant — to keep servers humming around the clock.
That's the reality data center developers and grid operators are facing right now. And it's reshaping how infrastructure gets financed, permitted, sited, and built.
The Scale of What's Actually Being Built
Strip away the hype and look at the numbers. Global data center capacity is on track to double before the end of the decade, driven by cloud migration, AI model training, and the sheer volume of digital activity that now underpins every sector of the economy. Hyperscalers — Amazon Web Services, Microsoft Azure, Google Cloud — are spending north of $50 billion annually on infrastructure buildout, collectively. Meta announced plans to spend up to $65 billion on AI infrastructure in 2025 alone.
These aren't incremental expansions. A single next-generation AI training facility can require 1 to 2 gigawatts of power — enough to serve a city of roughly 750,000 homes. That kind of load doesn't plug into the grid quietly. It triggers interconnection studies, transformer procurement cycles measured in years, and transmission upgrade requirements that ripple outward to substations and generation assets that were never intended to carry this weight.
The bottleneck isn't land, permitting, or even capital anymore — it's electrons.
What This Is Actually Doing to Regional Energy Supplies
The data center energy supply impact isn't uniform; it concentrates. Northern Virginia — home to the largest data center cluster on the planet, accounting for roughly 70% of the world's internet traffic routed through its facilities — is already straining Dominion Energy's grid to the point where the utility has warned of reliability concerns and accelerated its transmission investment plans significantly.
But the pressure is spreading. Markets like Phoenix, Dallas, Chicago, and Columbus are experiencing surges in grid interconnection requests that their regional transmission organizations weren't designed to process at this velocity. PJM Interconnection, which manages the grid across 13 states in the mid-Atlantic and Midwest, had a backlog of over 2,500 projects awaiting interconnection approval as of late 2023 — the majority of which are generation resources trying to come online to meet, in part, this exact demand.
The dynamic creates a cruel irony: data center buildouts are accelerating faster than the clean energy projects meant to power them can actually get connected to the grid.
Meanwhile, regions with historically cheap, abundant power — parts of the Pacific Northwest with hydroelectric resources, the Midwest with wind generation — are becoming magnets for new data center development. Developers aren't choosing these locations for the scenery; they're following the power.
The Transformer Problem Nobody Talks About
One underreported constraint deserves more attention. Large power transformers — the kind that step transmission voltage down to usable levels for a major data center campus — have global lead times that now stretch 80 to 120 weeks in many cases. That's not a supply chain inconvenience; it's a hard ceiling on how fast even fully permitted, fully funded projects can come online. Infrastructure developers who haven't already secured transformer procurement are potentially looking at delays measured in years, not months.
What It Means for Investors and Developers
For anyone allocating capital into infrastructure right now, the data center energy supply equation is no longer a background consideration — it's a primary underwriting variable.
Energy costs for a large-scale data center typically represent 40 to 60 percent of total operating expenditure over the asset's life. When power purchase agreements tighten, when grid congestion charges increase, or when a region's energy mix shifts, those economics move materially. An asset that pencils at $0.04 per kilowatt-hour looks very different at $0.07 — and that gap is increasingly realistic in constrained markets.
The long-term risk picture is equally complex. Investors who don't conduct granular grid studies before committing to a site are essentially buying an energy risk they haven't priced. That includes understanding not just current interconnection capacity, but forward-looking transmission plans, generation retirements in the region, and the regulatory posture of the state utility commission.
There's also a growing exposure around stranded asset risk. If a hyperscaler anchor tenant signs a 10-year lease but their ESG commitments require 24/7 carbon-free energy — something companies like Google are aggressively pursuing — and the local grid can't deliver it, that commitment becomes either a renegotiation trigger or a reputational liability. Neither outcome is good for the developer.
How the Smartest Developers Are Responding
The developers getting ahead of this aren't just waiting for the grid to catch up. They're restructuring how they approach energy from the ground up.
Co-location of generation is one approach gaining serious traction. Rather than relying solely on grid-sourced power, some large-scale campuses are integrating on-site or adjacent solar-plus-storage to handle baseline loads and reduce grid draw during peak demand periods. This doesn't fully solve the problem — a 500-megawatt facility can't realistically source that entirely from on-site renewables — but it meaningfully reduces grid dependency and can satisfy utility demand response requirements that are becoming standard conditions for large interconnection requests.
Nuclear is back in the conversation in a way it hasn't been for two decades. Microsoft's deal to restart Unit 1 at Three Mile Island — rebranded Crane Clean Energy Center — specifically to power its data center operations is emblematic of a broader rethink. Small modular reactors, while still years from commercial deployment at scale, are receiving serious procurement attention from hyperscalers who need firm, carbon-free power and can't get enough of it from intermittent renewables.
The developers who will win the next decade aren't the ones who can build fastest — they're the ones who control their energy supply.
On the grid integration side, best-in-class developers are engaging with utilities and regional transmission organizations earlier than ever — sometimes years before a shovel touches ground. Participating in long-term transmission planning processes, co-funding substation upgrades, and structuring power agreements that give utilities flexibility on delivery timing are all tools that sophisticated players are using to move up the interconnection queue.
Where This Goes From Here
Regulatory pressure is building. Several states have begun requiring data center developers to submit detailed energy impact assessments as part of the permitting process — a trend that will almost certainly accelerate as grid stress becomes more visible to the public and to state legislators who answer to utility ratepayers.
At the federal level, FERC's Order 1920, finalized in mid-2024, represents the most significant overhaul of long-term transmission planning rules in over a decade. Its full impact on data center interconnection timelines won't be known for several years, but the directional intent is clear: more proactive planning, more cost allocation to load-driving entities, and more accountability for large industrial customers whose demand is reshaping regional grids.
The data center buildout isn't slowing — the economics and the AI-driven demand signals are too strong for that. But the era of dropping a gigawatt-scale campus anywhere with cheap land and assuming the grid will accommodate it is over. Energy supply is now the binding constraint, and the developers, investors, and infrastructure owners who internalize that earliest will be the ones holding the most valuable assets when the dust settles.
For anyone actively acquiring, developing, or financing data center infrastructure, the question to ask before any other is simple: *Where does the power come from, and do you actually have it locked down?* Everything else is secondary.
Learn more about how to navigate these challenges at InfraSale Marketplace.