DUMFRIES
Substation-AdjacentPrince William, Virginia · PJM
DUMFRIES is a substation-adjacent datacenter candidate site in Prince William, Virginia, interconnecting through PJM. It screens at 65.0/100 DC Readiness with a catalogued 300 MW of candidate capacity and a 3.8 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Largest US DC market; incentive preserved but a new $0.011/kWh DC electricity tax starts Jul 2026.
Dominion GS-5 large-load rate (≥25 MW, ~$1.5M/MW collateral, 14-yr term) effective 2027.
Incentive detail: Sales tax exemption on DC equipment for $150M+ investments (2025: $100M+); MEGA site program.
Site location
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Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Prince William, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| BRISTERS | Substation-Adjacent | 500 kV | 1,000 MW | 3.8 yrs | 69.3 |
| CLOVER HILL | Substation-Adjacent | 230 kV | 300 MW | 3.8 yrs | 67.2 |
| WOODBRIDGE | Substation-Adjacent | 230 kV | 300 MW | 3.8 yrs | 65.2 |
| NOVEC SMOKETOWN | Substation-Adjacent | 230 kV | 300 MW | 3.8 yrs | 65.2 |
| OZ Prince William | Greenfield | — | — | 3.1 yrs | 64.1 |
| Greenfield (BRISTERS - OX) | Greenfield | 500 kV | 1,000 MW | 3.8 yrs | 63.4 |
| EC Near Dominion/Lo Mar | Greenfield | — | — | 3.1 yrs | 63.3 |
| EC Near VMEA 1 Credit Gen | Greenfield | — | — | 3.1 yrs | 63.3 |
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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