AI Data Centers in Northern Virginia
AI Data Centers in Northern Virginia
Northern Virginia's "Data Center Alley" in Loudoun and surrounding counties is the largest data center market in the world by capacity — and the clearest example of what happens when an interconnection queue outgrows a utility's transmission system.
AI Data Center Buildout in Northern Virginia
Decades of hyperscale and cloud data center development turned Northern Virginia into the densest data center cluster in the US, and AI-driven demand has only intensified the buildout. Dominion Energy, the region's dominant utility, has gone from managing steady load growth to fielding an unprecedented wave of large-load connection requests concentrated almost entirely in this corridor.
Power Constraints and Grid Upgrades
Dominion's queue of large-load delivery-point requests grew from about 47 gigawatts in October 2025 to roughly 70 gigawatts by February 2026 — nearly three times Virginia's all-time peak electricity demand. Of that 70 gigawatts, only about 25 gigawatts currently has an assigned connection date, and those dates stretch out through 2031; the remaining 45 gigawatts is still under study with no committed timeline. Dominion has previously warned that total wait times for large data center connections could run four to seven years from application to energization, and one Virginia lawmaker has flagged queue cycle times as long as 15 years without further intervention. Transmission upgrades — including new 500kV lines through Loudoun County — are underway to relieve some of the most congested substations, but they take years to complete.
Queue and Siting Risk in the Region
In February 2026, Dominion filed new interconnection queue rules with Virginia's State Corporation Commission (Case PUR-2026-00011), formalizing a batch process that reviews delivery-point requests of roughly 100–300 megawatts in groups of about ten, representing 2–3 gigawatts per batch. Separately, a new large-load rate class (GS-5), effective January 1, 2027, requires any customer with 25+ megawatts of demand and a load factor of at least 75% to sign a 14-year contract with minimum transmission, distribution, and generation charges and significant collateral requirements — a structural shift that raises the cost and commitment threshold for new data center connections in the state.
Investor and Utility Use Cases
For investors, the gap between Dominion's 70-gigawatt queue and its 25-gigawatt "assigned date" capacity is the number that matters — it separates data center projects with a real path to power from those that are effectively speculative. Utility and REIT investors also need to track how the new GS-5 rate class and collateral requirements affect data center developers' cost of capital and project economics going forward.
Where to Go Deeper
The Powering AI report's Northern Virginia section tracks Dominion's queue batches, GS-5 rollout, and transmission buildout in detail — the level of granularity that headline "data center demand" numbers don't provide.