Northern Virginia hosts what is widely described as the world's largest concentration of data centers — a corridor centered on Loudoun and Prince William counties that routes a significant share of global internet traffic. For nearly two decades, the state's combination of cheap power, fiber density, sales-tax exemptions, and permissive local zoning made it the default home for hyperscale cloud and, more recently, AI training clusters. That settlement is now under serious political pressure for the first time.
In December 2024, Virginia's Joint Legislative Audit and Review Commission (JLARC) — the General Assembly's nonpartisan oversight arm — published a comprehensive review of the industry's footprint. Its central finding was blunt: on current trajectories, unconstrained data center growth could roughly double Virginia's electricity demand by the late 2030s, with material risks of cost-shifting onto residential and small-business ratepayers if utility infrastructure costs are socialized rather than allocated to the loads driving them.
That single sentence has done more to reshape Virginia's policy debate than a decade of community opposition. The 2025 General Assembly session saw a wave of bills addressing siting standards, environmental and noise disclosure, and — most consequentially — how the costs of new transmission and generation get assigned. The question is no longer whether Virginia will regulate data centers more tightly. It is whether it does so in a way that preserves the cluster's competitive advantages or pushes the next wave of investment to Texas, Ohio, Georgia, and the Nordics.
What JLARC Actually Said
The JLARC report is worth reading on its own terms because it is not the anti-industry polemic some of its critics suggested. It documents real economic benefits — substantial tax revenue, construction employment, and a smaller but meaningful base of permanent operations jobs — and treats the sector as a strategic asset. But it also identifies three concrete risks that proportionate regulation should address:
- Grid strain: Dominion Energy's load forecasts have repeatedly been revised upward, and transmission build-out is lagging connection requests.
- Cost allocation: Under existing tariff structures, the fixed costs of new generation and transmission can spread across the broader ratepayer base rather than being borne by the large-load customers triggering the build-out.
- Local externalities: Water use for cooling, diesel backup emissions, noise from cooling infrastructure, and land-use conflicts near residential zones are increasingly contested at the county level.
None of these are unique to Virginia. What is unique is the scale and the fact that one state's policy choices now meaningfully affect the cost structure of global cloud and AI services.
The Right Frame: Internalize Costs, Don't Cap Growth
The instinct in some quarters has been to call for moratoria or aggressive caps on new construction. That is the wrong instrument. The problem JLARC identifies is not that data centers exist — it is that the price signals around them are distorted. Sales-tax exemptions, socialized grid upgrades, and fast-tracked local approvals all subsidize siting in Virginia relative to its true marginal cost. The proportionate response is to fix the price signals, not to ban the activity.
That means three things in practice. First, large-load tariffs that recover the cost of dedicated transmission and generation from the customers requesting interconnection, with multi-year take-or-pay commitments so utilities can finance the build. Several utility commissions in other states are moving in this direction, and Virginia's State Corporation Commission has signaled openness to similar reforms. Second, transparent environmental disclosure — water draw, backup generator emissions, noise contours — at the site-plan stage, so local governments and neighbors can negotiate from facts rather than rumor. Third, faster, not slower, permitting for clean firm generation: advanced nuclear, geothermal, and long-duration storage. The single biggest constraint on responsible data center growth is the pace at which carbon-free capacity can be built.
What the 2025 Bills Got Right — and Wrong
The strongest 2025 proposals focused on disclosure and cost allocation: requiring data center operators to report energy and water use, and directing the State Corporation Commission to study tariff structures that better assign infrastructure costs to large loads. These are exactly the kind of light-touch, information-forcing interventions that allow markets and local governments to make better decisions without picking technology winners.
The weaker proposals — blanket setback requirements, statewide siting vetoes, and rigid energy-mix mandates applied only to data centers — risk pushing investment out of state without reducing aggregate emissions or grid strain (since the workloads simply relocate). Virginia legislators should resist the temptation to treat data centers as an exceptional industry deserving of bespoke restrictions that would never be applied to, say, a steel mill or a semiconductor fab with comparable load profiles.
The Stakes Beyond Virginia
The AI build-out is one of the largest infrastructure expansions in modern American history, and its geography is still being decided. States that combine clear rules, fair cost allocation, and fast permitting for clean firm power will host it. States that respond to legitimate grid concerns with reflexive moratoria will not — and will export the emissions anyway, just to less efficient grids elsewhere.
Virginia is in a strong position to model the first approach. The JLARC report is a serious document deserving a serious response: tariffs that internalize costs, disclosure that empowers communities, and an aggressive clean-generation build-out. That is how you keep the world's largest data center cluster — and make sure the people who live next to it are not the ones paying for it.