Greenfield (KAMMER (138KV) - HANNIBAL PORT)
GreenfieldMarshall County, West Virginia · PJM
At a glance
Greenfield (KAMMER (138KV) - HANNIBAL PORT) is a greenfield datacenter candidate site in Marshall County, West Virginia, scoring 49.9/100 DC Readiness — 30th of 34 scored sites in the county. Its nearest substation is KAMMER (138KV). It sits in the PJM grid region, where interconnection has averaged 3.0 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
Power & interconnection
Speed to power
Shorter queues and healthier completion here — a faster path to energization than the national norm.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Greenfield (KAMMER (138KV) - HANNIBAL PORT) compare with other sites in Marshall County?
Greenfield (KAMMER (138KV) - HANNIBAL PORT) ranks 30th of 34 scored candidate sites in Marshall County. Its 49.9/100 is roughly in line with the county average of 54.5. It is roughly in line with the West Virginia average of 52.0 and roughly in line with the national average of 53.2.
Against the West Virginia average, its strongest sub-score is natural hazard (78 vs 77) and its weakest is fiber connectivity (55 vs 60). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (KAMMER (138KV) - HANNIBAL PORT) to power, fiber and other datacenters?
The nearest mapped substation, KAMMER (138KV), is the closest grid connection point on record and operates at 138 kV. The nearest located transmission bottleneck is CRETSTJO-STJOHNS 94507 B 345 KV (PJM), 91 miles away. For connectivity, the nearest internet exchange facility is Citynet Bridgeport at 44.6 miles. 2 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Citynet Bridgeport, 44.6 miles away.
What are the flood, water and hazard risks at Greenfield (KAMMER (138KV) - HANNIBAL PORT)?
At the county level, FEMA's National Risk Index rates Marshall 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 Marshall County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN140084 | Substation-Adjacent | 765 kV | 1,000 MW | 3.0 yrs | 64.7 |
| KAMMER (765KV) | Substation-Adjacent | 765 kV | 1,000 MW | 3.0 yrs | 64.6 |
| EC Near Axiall Natrium Plant | Greenfield | — | — | 3.0 yrs | 58.6 |
| OZ Marshall | Greenfield | — | — | 3.0 yrs | 58.3 |
| Greenfield (KAMMER (765KV) - BELMONT) | Greenfield | 765 kV | 1,000 MW | 3.0 yrs | 58.2 |
| EC Near Axiall Natrium Plant | Greenfield | — | — | 3.0 yrs | 57.1 |
| EC Near Axiall Natrium Plant | Greenfield | — | — | 3.0 yrs | 56.8 |
| EC FFE Marshall County | Greenfield | — | — | 3.0 yrs | 56.7 |
Greenfield (KAMMER (138KV) - HANNIBAL PORT): common questions
What is the DC Readiness score of Greenfield (KAMMER (138KV) - HANNIBAL PORT)?
Greenfield (KAMMER (138KV) - HANNIBAL PORT) scores 49.9/100 on the GridCensus DC Readiness scale, rated fair. It ranks 30th of 34 scored sites in Marshall County. The Marshall County average is 54.5 and the West Virginia average is 52.0.
What is the nearest substation to Greenfield (KAMMER (138KV) - HANNIBAL PORT)?
The nearest mapped substation is KAMMER (138KV), at 138 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
What grid region is Greenfield (KAMMER (138KV) - HANNIBAL PORT) in?
Greenfield (KAMMER (138KV) - HANNIBAL PORT) is in the PJM region. Projects interconnecting there have averaged a 3.0-year wait from queue request to operation.
How far is Greenfield (KAMMER (138KV) - HANNIBAL PORT) from an internet exchange?
The nearest internet exchange facility is Citynet Bridgeport, about 44.6 miles away; 2 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 (KAMMER (138KV) - HANNIBAL PORT), Marshall County, WV”, https://gridcensus.com/datacenter-sites/west-virginia/marshall-county/greenfield-kammer-138kv-hannibal-port-b6e9cf09 (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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Every site and score for Greenfield (KAMMER (138KV) - HANNIBAL PORT), Marshall 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.