Substation-Adjacent site at 39.745, -76.225
Substation-AdjacentHarford County, Pennsylvania · PJM
At a glance
Substation-Adjacent site at 39.745, -76.225 is a substation-adjacent datacenter candidate site in Harford County, Pennsylvania, scoring 53.3/100 DC Readiness — 29th of 44 scored sites in the county. Its nearest substation is UNKNOWN170899 (0 mi, 69 kV). It sits in the PJM grid region and the PPL ELECTRIC UTILITIES CORP service territory, where interconnection has averaged 3.6 years from request to operation. GridCensus catalogs 50 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
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 UNKNOWN170899
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does Substation-Adjacent site at 39.745, -76.225 compare with other sites in Harford County?
Substation-Adjacent site at 39.745, -76.225 ranks 29th of 44 scored candidate sites in Harford County. Its 53.3/100 is roughly in line with the county average of 56.0. It is roughly in line with the Pennsylvania average of 51.8 and roughly in line with the national average of 53.2.
Against the Pennsylvania average, its strongest sub-score is power availability (46 vs 34) and its weakest is water (84 vs 89). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Substation-Adjacent site at 39.745, -76.225 to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN170899, is about 0 miles away and operates at 69 kV. The nearest located transmission bottleneck is COOPERPE-PEACHTAP COO-PEA A 230 KV (PJM), 2 miles away. For connectivity, the nearest internet exchange facility is USNAMES-NET at 31.8 miles. 6 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is USNAMES-NET, 31.8 miles away.
What are the flood, water and hazard risks at Substation-Adjacent site at 39.745, -76.225?
At the county level, FEMA's National Risk Index rates Harford 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 Harford County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| ROCK SPRINGS | Substation-Adjacent | 500 kV | 1,000 MW | 5.3 yrs | 68.8 |
| DELTA YORK EC | Substation-Adjacent | 500 kV | 1,000 MW | 3.6 yrs | 65.8 |
| CONASTONE | Substation-Adjacent | 500 kV | 1,000 MW | 5.3 yrs | 64.7 |
| PEACH BOTTOM | Substation-Adjacent | 500 kV | 1,000 MW | 3.6 yrs | 64.0 |
| PEACH BOTTOM | Substation-Adjacent | 500 kV | 1,000 MW | 3.6 yrs | 64.0 |
| RAPHAEL ROAD SWITCHING STATION | Substation-Adjacent | 230 kV | 300 MW | 5.3 yrs | 62.5 |
| UNKNOWN123011 | Substation-Adjacent | 230 kV | 300 MW | 5.3 yrs | 62.4 |
| TAP139126 | Substation-Adjacent | 230 kV | 300 MW | 5.3 yrs | 61.1 |
Substation-Adjacent site at 39.745, -76.225: common questions
What is the DC Readiness score of Substation-Adjacent site at 39.745, -76.225?
Substation-Adjacent site at 39.745, -76.225 scores 53.3/100 on the GridCensus DC Readiness scale, rated fair. It ranks 29th of 44 scored sites in Harford County. The Harford County average is 56.0 and the Pennsylvania average is 51.8.
What is the nearest substation to Substation-Adjacent site at 39.745, -76.225?
The nearest mapped substation is UNKNOWN170899, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.
Which electric utility serves Substation-Adjacent site at 39.745, -76.225?
PPL ELECTRIC UTILITIES CORP (investor owned) holds the retail service territory that contains the site; its holding company is PPL CORPORATION.
What grid region is Substation-Adjacent site at 39.745, -76.225 in?
Substation-Adjacent site at 39.745, -76.225 is in the PJM region. Projects interconnecting there have averaged a 3.6-year wait from queue request to operation.
How far is Substation-Adjacent site at 39.745, -76.225 from an internet exchange?
The nearest internet exchange facility is USNAMES-NET, about 31.8 miles away; 6 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, “Substation-Adjacent site at 39.745, -76.225, Harford County, PA”, https://gridcensus.com/datacenter-sites/pennsylvania/harford-county/unknown170899-4e68e78f (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 Substation-Adjacent site at 39.745, -76.225, Harford 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.