Custom Marine
IndustrialWinnebago County, Wisconsin · MISO
At a glance
Custom Marine is an industrial datacenter candidate site in Winnebago County, Wisconsin, scoring 55.7/100 DC Readiness — 27th of 140 scored sites in the county. It sits in the MISO grid region and the WISCONSIN ELECTRIC POWER CO service territory, where interconnection has averaged 4.3 years from request to operation.
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: Enterprise Zone tax credits; TIF available for DC construction in eligible areas.
Site location
Get alerts
Track Custom Marine
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does Custom Marine compare with other sites in Winnebago County?
Custom Marine ranks 27th of 140 scored candidate sites in Winnebago County. Its 55.7/100 is roughly in line with the county average of 55.5. It is roughly in line with the Wisconsin average of 55.4 and roughly in line with the national average of 53.2.
Against the Wisconsin average, its strongest sub-score is fiber connectivity (85 vs 67) and its weakest is power availability (30 vs 38). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Custom Marine to power, fiber and other datacenters?
The nearest located transmission bottleneck is NSPALW02_NORTHPRT_NORTHWILMA11_1_1 (MISO), 62 miles away. For connectivity, the nearest internet exchange facility is ark data centers - Green Bay, WI at 5.5 miles. 6 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Involta DC, 5.5 miles away.
What are the flood, water and hazard risks at Custom Marine?
At the county level, FEMA's National Risk Index rates Winnebago 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 Winnebago County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| FITZGERALD | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.2 |
| EC Near Winnebago County Landfill Gas | Greenfield | — | — | 4.3 yrs | 64.4 |
| EC Near Winnebago County Landfill Gas | Greenfield | — | — | 4.3 yrs | 63.2 |
| TAYCO | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.1 |
| NEEVIN | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 61.7 |
| WOODENSHOE | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 61.5 |
| PROGRESS | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 61.4 |
| AVIATION | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 61.4 |
Custom Marine: common questions
What is the DC Readiness score of Custom Marine?
Custom Marine scores 55.7/100 on the GridCensus DC Readiness scale, rated good. It ranks 27th of 140 scored sites in Winnebago County. The Winnebago County average is 55.5 and the Wisconsin average is 55.4.
Which electric utility serves Custom Marine?
WISCONSIN ELECTRIC POWER CO (investor owned) holds the retail service territory that contains the site; its holding company is WISCONSIN ENERGY CORP.
What grid region is Custom Marine in?
Custom Marine is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Custom Marine from an internet exchange?
The nearest internet exchange facility is ark data centers - Green Bay, WI, about 5.5 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, “Custom Marine, Winnebago County, WI”, https://gridcensus.com/datacenter-sites/wisconsin/winnebago-county/custom-marine-fa65cbf1 (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 Custom Marine, Winnebago 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.