PJM Datacenter Sites
PJM Interconnection
PJM coordinates the grid across 13 mid-Atlantic and Midwest states. It contains the world's densest datacenter cluster (Northern Virginia's 'Data Center Alley'), and its interconnection queue is the most closely watched speed-to-power constraint in the country.
48,150
Candidate sites
50.9/100
Avg DC Readiness
3.5M MW
Catalogued capacity
theoretical aggregate
3.4 yrs
Avg queue wait
Member states
- Kentucky7,256
- Pennsylvania6,684
- Michigan5,433
- Virginia5,294
- Ohio4,461
- West Virginia3,963
- Illinois3,949
- Indiana3,583
- North Carolina3,087
- New Jersey1,051
- Maryland972
- South Carolina795
- Missouri457
- Georgia359
- Delaware298
- New York229
- District of Columbia91
- Minnesota69
- Mississippi53
- Tennessee37
- Wisconsin11
- Florida10
- Alabama4
- Kansas2
- Oklahoma1
- Wyoming1
By site type
- Former Mine15,028
- Industrial11,885
- Greenfield10,582
- Substation-Adjacent7,640
- Shovel-Ready2,119
- Federal Excess510
- Brownfield378
- Military BRAC8
Average sub-score profile
Power availability
37.2
Speed-to-power
42.8
Fiber
56.1
Water
66.7
Hazard resilience
55.9
Top 25 datacenter sites in PJM
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| SHAWNEE | Substation-Adjacent | IL | Massac County | 500 kV | 1,000 MW | 4.6 yrs | 81.3 |
| DUMONT | Substation-Adjacent | IN | St. Joseph County | 765 kV | 1,000 MW | 2.2 yrs | 80.4 |
| ROCK SPRINGS | Substation-Adjacent | DE | New Castle County | 500 kV | 1,000 MW | 1.5 yrs | 80.4 |
| ST. JOHN | Substation-Adjacent | IN | St. Joseph County | 345 kV | 600 MW | 2.2 yrs | 80.3 |
| SOUTH CANTON 765KV | Substation-Adjacent | OH | Stark County | 765 kV | 1,000 MW | 3.2 yrs | 79.8 |
| GOOSE CREEK | Substation-Adjacent | VA | Loudoun County | 500 kV | 1,000 MW | 3.1 yrs | 79.7 |
| ELMONT | Substation-Adjacent | VA | Hanover County | 500 kV | 1,000 MW | 3.1 yrs | 79.3 |
| UNKNOWN171809 | Substation-Adjacent | PA | Lehigh County | 500 kV | 1,000 MW | 3.0 yrs | 79.1 |
| BRAMBLETON | Substation-Adjacent | VA | Loudoun County | 500 kV | 1,000 MW | 3.1 yrs | 79.1 |
| LEMOYNE | Substation-Adjacent | OH | Wood County | 345 kV | 600 MW | 2.2 yrs | 78.8 |
| MIDLOTHIAN | Substation-Adjacent | VA | Chesterfield County | 500 kV | 1,000 MW | 3.1 yrs | 78.8 |
| GAINES | Substation-Adjacent | MI | Kent County | 345 kV | 600 MW | 2.2 yrs | 78.7 |
| PLANO (765 KV) | Substation-Adjacent | IL | Kendall County | 765 kV | 1,000 MW | 4.6 yrs | 78.7 |
| MOSBY | Substation-Adjacent | VA | Winchester city | 500 kV | 1,000 MW | 3.0 yrs | 78.7 |
| COLLIER | Substation-Adjacent | PA | Allegheny County | 345 kV | 600 MW | 3.2 yrs | 78.6 |
| UNKNOWN113763 | Substation-Adjacent | OH | Hamilton County | 345 kV | 600 MW | 3.2 yrs | 78.5 |
| UNKNOWN113019 | Substation-Adjacent | OH | Warren County | 345 kV | 600 MW | 3.2 yrs | 78.5 |
| UNKNOWN162181 | Substation-Adjacent | MD | Prince George's County | 500 kV | 1,000 MW | 3.1 yrs | 78.3 |
| TAP137571 | Substation-Adjacent | OH | Warren County | 345 kV | 600 MW | 3.2 yrs | 78.3 |
| FOX | Substation-Adjacent | OH | Cuyahoga County | 345 kV | 600 MW | 3.2 yrs | 78.3 |
| TERMINAL | Substation-Adjacent | OH | Hamilton County | 345 kV | 600 MW | 3.2 yrs | 78.3 |
| COLLIER | Substation-Adjacent | PA | Allegheny County | 345 kV | 600 MW | 3.0 yrs | 78.2 |
| FRONT ROYAL | Substation-Adjacent | VA | Warren County | 500 kV | 1,000 MW | 3.0 yrs | 78.2 |
| YADKIN | Substation-Adjacent | VA | Portsmouth city | 500 kV | 1,000 MW | 3.1 yrs | 78.2 |
| SOUTHBEND | Substation-Adjacent | PA | Armstrong County | 500 kV | 1,000 MW | 3.0 yrs | 78.0 |
PJM FAQ
- What is PJM?
- PJM Interconnection (PJM) PJM coordinates the grid across 13 mid-Atlantic and Midwest states. It contains the world's densest datacenter cluster (Northern Virginia's 'Data Center Alley'), and its interconnection queue is the most closely watched speed-to-power constraint in the country.
- How many datacenter sites are in the PJM region?
- GridCensus catalogs 48,150 scored datacenter candidate sites in PJM, averaging 50.9/100 DC Readiness.
- What is the average interconnection-queue wait in PJM?
- Candidate sites in PJM average a 3.4 yrs queue wait with an average queue depth of 250 projects.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for PJM. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.