Leonardtown Wharf-328
IndustrialSt. Mary's County, Maryland · PJM
At a glance
Leonardtown Wharf-328 is an industrial datacenter candidate site in St. Mary's County, Maryland, scoring 46.1/100 DC Readiness — 24th of 30 scored sites in the county. It sits in the PJM grid region and the SOUTHERN MARYLAND ELEC COOP INC service territory, where interconnection has averaged 5.3 years from request to operation.
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
Get alerts
Track Leonardtown Wharf-328
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does Leonardtown Wharf-328 compare with other sites in St. Mary's County?
Leonardtown Wharf-328 ranks 24th of 30 scored candidate sites in St. Mary's County. Its 46.1/100 is roughly in line with the county average of 49.8. It is about 13% below the Maryland average of 52.9 and about 13% below the national average of 53.2.
Against the Maryland average, its strongest sub-score is natural hazard (78 vs 75) and its weakest is fiber connectivity (50 vs 72). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Leonardtown Wharf-328 to power, fiber and other datacenters?
The nearest located transmission bottleneck is POSSUMP4 TX1 XFORMER H 500 KV (PJM), 39 miles away. For connectivity, the nearest internet exchange facility is AiNET DC-900S at 46.8 miles. 3 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is QTS Suitland, 41.8 miles away.
What are the flood, water and hazard risks at Leonardtown Wharf-328?
At the county level, FEMA's National Risk Index rates St. Mary's 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 St. Mary's County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| HEWITT ROAD SWITCHING STATION | Substation-Adjacent | 230 kV | 300 MW | 5.3 yrs | 57.4 |
| OZ St. Mary's | Greenfield | — | — | 5.3 yrs | 54.9 |
| UNKNOWN123963 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.2 |
| UNKNOWN123297 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.2 |
| TAP123962 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.2 |
| UNKNOWN123951 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.2 |
| TAP139050 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.1 |
| UNKNOWN123947 | Substation-Adjacent | 69 kV | 50 MW | 5.3 yrs | 51.0 |
Leonardtown Wharf-328: common questions
What is the DC Readiness score of Leonardtown Wharf-328?
Leonardtown Wharf-328 scores 46.1/100 on the GridCensus DC Readiness scale, rated fair. It ranks 24th of 30 scored sites in St. Mary's County. The St. Mary's County average is 49.8 and the Maryland average is 52.9.
Which electric utility serves Leonardtown Wharf-328?
SOUTHERN MARYLAND ELEC COOP INC (cooperative) holds the retail service territory that contains the site.
What grid region is Leonardtown Wharf-328 in?
Leonardtown Wharf-328 is in the PJM region. Projects interconnecting there have averaged a 5.3-year wait from queue request to operation.
How far is Leonardtown Wharf-328 from an internet exchange?
The nearest internet exchange facility is AiNET DC-900S, about 46.8 miles away; 3 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, “Leonardtown Wharf-328, St. Mary's County, MD”, https://gridcensus.com/datacenter-sites/maryland/st-mary-s-county/leonardtown-wharf-328-afd6cae1 (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.
Go deeper than the public screen
Every site and score for Leonardtown Wharf-328, St. Mary's County is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.