Greenfield (POLAND RD - TAP176461)
GreenfieldLoudoun County, Virginia · PJM
At a glance
Greenfield (POLAND RD - TAP176461) is a greenfield datacenter candidate site in Loudoun County, Virginia, scoring 60.1/100 DC Readiness — 26th of 56 scored sites in the county. Its nearest substation is POLAND RD. It sits in the PJM grid region and the VIRGINIA ELECTRIC & POWER CO service territory, where interconnection has averaged 5.1 years from request to operation. GridCensus catalogs 300 MW of candidate capacity here.
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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How does Greenfield (POLAND RD - TAP176461) compare with other sites in Loudoun County?
Greenfield (POLAND RD - TAP176461) ranks 26th of 56 scored candidate sites in Loudoun County. Its 60.1/100 is roughly in line with the county average of 60.2. It is about 14% above the Virginia average of 52.6 and about 13% above the national average of 53.2.
Against the Virginia average, its strongest sub-score is fiber connectivity (96 vs 71) and its weakest is speed to power (45 vs 46). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (POLAND RD - TAP176461) to power, fiber and other datacenters?
The nearest mapped substation, POLAND RD, is the closest grid connection point on record and operates at 230 kV. The nearest located transmission bottleneck is ASHBURN-GOOSECRE 227D B 230 KV (PJM), 6 miles away. For connectivity, the nearest internet exchange facility is Digital Realty IAD (43940 Digital Loudoun) at 1.9 miles. 16 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Digital Realty Northern Virginia IAD44, 1 miles away.
What are the flood, water and hazard risks at Greenfield (POLAND RD - TAP176461)?
At the county level, FEMA's National Risk Index rates Loudoun County "Relatively Moderate".
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 Loudoun County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| BRAMBLETON | Substation-Adjacent | 500 kV | 1,000 MW | 5.1 yrs | 70.3 |
| GOOSE CREEK | Substation-Adjacent | 500 kV | 1,000 MW | 5.1 yrs | 69.9 |
| UNKNOWN162231 | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.6 |
| GREENWAY | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.5 |
| BEAUMEADE | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.4 |
| BECO | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.4 |
| UNKNOWN146360 | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.4 |
| YARDLEY RIDGE | Substation-Adjacent | 230 kV | 300 MW | 5.1 yrs | 66.1 |
Greenfield (POLAND RD - TAP176461): common questions
What is the DC Readiness score of Greenfield (POLAND RD - TAP176461)?
Greenfield (POLAND RD - TAP176461) scores 60.1/100 on the GridCensus DC Readiness scale, rated good. It ranks 26th of 56 scored sites in Loudoun County. The Loudoun County average is 60.2 and the Virginia average is 52.6.
What is the nearest substation to Greenfield (POLAND RD - TAP176461)?
The nearest mapped substation is POLAND RD, at 230 kV. GridCensus catalogs 300 MW of candidate capacity for the site.
Which electric utility serves Greenfield (POLAND RD - TAP176461)?
VIRGINIA ELECTRIC & POWER CO (investor owned) holds the retail service territory that contains the site; its holding company is DOMINION RESOURCES.
What grid region is Greenfield (POLAND RD - TAP176461) in?
Greenfield (POLAND RD - TAP176461) is in the PJM region. Projects interconnecting there have averaged a 5.1-year wait from queue request to operation.
How far is Greenfield (POLAND RD - TAP176461) from an internet exchange?
The nearest internet exchange facility is Digital Realty IAD (43940 Digital Loudoun), about 1.9 miles away; 16 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Greenfield (POLAND RD - TAP176461), Loudoun County, VA”, https://gridcensus.com/datacenter-sites/virginia/loudoun-county/greenfield-poland-rd-tap176461-6bc71976 (data as of October 10, 2026).
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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