STEWART
Substation-AdjacentJefferson County, Kentucky · SERC
At a glance
STEWART is a substation-adjacent datacenter candidate site in Jefferson County, Kentucky, scoring 61.5/100 DC Readiness — 66th of 180 scored sites in the county. Its nearest substation is STEWART (0 mi, 69 kV). It sits in the SERC grid region and the LOUISVILLE GAS & ELECTRIC CO service territory, where interconnection has averaged 3.9 years from request to operation. GridCensus catalogs 50 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Sales tax exemption on electricity for large industrial users; KBI tax credits.
Site location
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How does STEWART compare with other sites in Jefferson County?
STEWART ranks 66th of 180 scored candidate sites in Jefferson County. Its 61.5/100 is roughly in line with the county average of 60.8. It is about 16% above the Kentucky average of 52.8 and about 16% above the national average of 53.2.
Against the Kentucky average, its strongest sub-score is fiber connectivity (92 vs 63) and its weakest is water (92 vs 92). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is STEWART to power, fiber and other datacenters?
The nearest mapped substation, STEWART, is about 0 miles away and operates at 69 kV. For connectivity, the nearest internet exchange facility is Heyburn Building at 6 miles. 10 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Heyburn Building, 6 miles away.
What are the flood, water and hazard risks at STEWART?
At the county level, FEMA's National Risk Index rates Jefferson County "Relatively Moderate".
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 Jefferson County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MIDDLETOWN 345 KV | Substation-Adjacent | 345 kV | 600 MW | 3.9 yrs | 70.0 |
| EC Near Zorn | Greenfield | — | — | 3.9 yrs | 67.6 |
| OZ Jefferson | Greenfield | — | — | 3.9 yrs | 67.2 |
| OZ Jefferson | Greenfield | — | — | 3.9 yrs | 66.8 |
| EC Near Zorn | Greenfield | — | — | 3.9 yrs | 66.7 |
| EC Near Cane Run | Greenfield | — | — | 3.9 yrs | 66.6 |
| EC Coal Jefferson County | Greenfield | — | — | 3.9 yrs | 66.6 |
| EC Coal Jefferson County | Greenfield | — | — | 3.9 yrs | 66.3 |
STEWART: common questions
What is the DC Readiness score of STEWART?
STEWART scores 61.5/100 on the GridCensus DC Readiness scale, rated good. It ranks 66th of 180 scored sites in Jefferson County. The Jefferson County average is 60.8 and the Kentucky average is 52.8.
What is the nearest substation to STEWART?
The nearest mapped substation is STEWART, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.
Which electric utility serves STEWART?
LOUISVILLE GAS & ELECTRIC CO (investor owned) holds the retail service territory that contains the site; its holding company is PPL CORPORATION.
What grid region is STEWART in?
STEWART is in the SERC region. Projects interconnecting there have averaged a 3.9-year wait from queue request to operation.
How far is STEWART from an internet exchange?
The nearest internet exchange facility is Heyburn Building, about 6 miles away; 10 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, “STEWART, Jefferson County, KY”, https://gridcensus.com/datacenter-sites/kentucky/jefferson-county/stewart-26151a99 (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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