MARRIOTT HILL
Substation-AdjacentAnne Arundel County, Maryland · PJM
At a glance
MARRIOTT HILL is a substation-adjacent datacenter candidate site in Anne Arundel County, Maryland, scoring 56.5/100 DC Readiness — 26th of 64 scored sites in the county. Its nearest substation is MARRIOTT HILL (0 mi, 115 kV). It sits in the PJM grid region and the BALTIMORE GAS & ELECTRIC CO service territory, where interconnection has averaged 5.3 years from request to operation. GridCensus catalogs 100 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
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Enterprise Zone property tax credits; personal property tax credits on DC equipment.
Site location
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How does MARRIOTT HILL compare with other sites in Anne Arundel County?
MARRIOTT HILL ranks 26th of 64 scored candidate sites in Anne Arundel County. Its 56.5/100 is roughly in line with the county average of 54.9. It is roughly in line with the Maryland average of 52.9 and roughly in line with the national average of 53.2.
Against the Maryland average, its strongest sub-score is power availability (56 vs 39) and its weakest is speed to power (35 vs 36). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is MARRIOTT HILL to power, fiber and other datacenters?
The nearest mapped substation, MARRIOTT HILL, is about 0 miles away and operates at 115 kV. The nearest located transmission bottleneck is POSSUMP4 TX1 XFORMER H 500 KV (PJM), 43 miles away. For connectivity, the nearest internet exchange facility is AiNET MD-790R at 17.6 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is QTS Suitland, 16.9 miles away.
What are the flood, water and hazard risks at MARRIOTT HILL?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates Anne Arundel County "Relatively Low".
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 Anne Arundel County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| WAUGH CHAPEL | Substation-Adjacent | 500 kV | 1,000 MW | 5.3 yrs | 67.5 |
| TAP139174 | Substation-Adjacent | 230 kV | 300 MW | 5.3 yrs | 63.3 |
| EC Coal Anne Arundel County | Greenfield | — | — | 5.3 yrs | 62.8 |
| EC Near Green Machine | Greenfield | — | — | 5.3 yrs | 61.3 |
| OZ Anne Arundel | Greenfield | — | — | 5.3 yrs | 61.0 |
| EC Near Herbert A Wagner | Greenfield | — | — | 5.3 yrs | 60.8 |
| EC Near Green Machine | Greenfield | — | — | 5.3 yrs | 60.4 |
| EC Near Herbert A Wagner | Greenfield | — | — | 5.3 yrs | 60.0 |
MARRIOTT HILL: common questions
What is the DC Readiness score of MARRIOTT HILL?
MARRIOTT HILL scores 56.5/100 on the GridCensus DC Readiness scale, rated good. It ranks 26th of 64 scored sites in Anne Arundel County. The Anne Arundel County average is 54.9 and the Maryland average is 52.9.
What is the nearest substation to MARRIOTT HILL?
The nearest mapped substation is MARRIOTT HILL, about 0 miles away, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves MARRIOTT HILL?
BALTIMORE GAS & ELECTRIC CO (investor owned) holds the retail service territory that contains the site; its holding company is EXELON CORP.
What grid region is MARRIOTT HILL in?
MARRIOTT HILL is in the PJM region. Projects interconnecting there have averaged a 5.3-year wait from queue request to operation.
Is MARRIOTT HILL in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is MARRIOTT HILL from an internet exchange?
The nearest internet exchange facility is AiNET MD-790R, about 17.6 miles away; 11 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, “MARRIOTT HILL, Anne Arundel County, MD”, https://gridcensus.com/datacenter-sites/maryland/anne-arundel-county/marriott-hill-2133649d (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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