Datacenter Sites in Grundy, Illinois
Grundy has 23 scored datacenter candidate sites averaging 54.7/100 DC Readiness, with a catalogued aggregate of 8,050 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
At a glance
Grundy, Illinois has 23 scored datacenter candidate sites averaging 54.7/100 DC Readiness, roughly in line with the Illinois average of 53.6. It ranks 36th of 101 Illinois counties by number of sites and 42nd by average score. The top-scoring site is Collins at 62.9/100.
Site-selection context for Grundy
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
How does Grundy compare with other counties in Illinois?
By number of scored sites, Grundy ranks 36th of the 101 Illinois counties with a county page, holding 0.6% of the state's 3,641 sites. Its average DC Readiness of 54.7/100 ranks 42nd in the state and is roughly in line with the national average of 53.0. Nationally it has the 1558th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 8 score 55 or higher.
What types of datacenter sites are in Grundy?
Substation-Adjacent sites are the most common (11, 48% of the county's inventory), followed by greenfield (9) and former mine (2). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Grundy?
Industrial electricity averages 5.29¢/kWh and commercial 8.86¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (35). WRI water stress is low. 4 fiber providers report service in the county. The climate runs 1,100 cooling degree days a year with a mean temperature of 52°F. Land is valued around $10,311 an acre.
By site type
Top datacenter sites in Grundy
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| Collins | Brownfield | — | 2,650 MW | 4.8 yrs | 62.9 |
| COLLINS | Substation-Adjacent | 765 kV | 1,000 MW | 4.8 yrs | 62.8 |
| DRESDEN STATION | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 60.7 |
| BRAIDWOOD | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 59.5 |
| UNKNOWN122024 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 59.3 |
| EC Near Collins | Greenfield | — | — | 4.8 yrs | 55.2 |
| TAP153345 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 55.0 |
| TAP138207 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 55.0 |
| EC Near Collins | Greenfield | — | — | 4.8 yrs | 54.9 |
| DEADEND167142 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 54.9 |
| UNKNOWN123354 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 54.8 |
| UNKNOWN156648 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 54.6 |
| UNKNOWN157570 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 54.3 |
| Greenfield (UNKNOWN133789 - DRESDEN STATIO) | Greenfield | 345 kV | 600 MW | 4.8 yrs | 54.1 |
| EC Near Collins | Greenfield | — | — | 4.8 yrs | 53.9 |
| UNKNOWN123355 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 53.3 |
| Greenfield (LA SALLE - PLANO (345 KV)) | Greenfield | 345 kV | 600 MW | 4.7 yrs | 53.2 |
| Greenfield (BRAIDWOOD - DAVIS CREEK) | Greenfield | 345 kV | 600 MW | 4.8 yrs | 52.8 |
| EC Near Collins | Greenfield | — | — | 4.8 yrs | 52.3 |
| EC Near Collins | Greenfield | — | — | 4.8 yrs | 50.2 |
| Greenfield (TAP138209 - TAP153344) | Greenfield | 138 kV | 100 MW | 4.8 yrs | 48.9 |
| Mine Site | Former Mine | — | — | 4.8 yrs | 48.4 |
| Mine Site | Former Mine | — | — | 4.8 yrs | 48.2 |
Every scored site in Grundy
All 23 sites, best first.
- Collins · 62.9
- COLLINS · 62.8
- DRESDEN STATION · 60.7
- BRAIDWOOD · 59.5
- Substation-Adjacent site · a8524c67 · 59.3
- EC Near Collins · eb1d604c · 55.2
- Substation-Adjacent site · f120e0af · 55.0
- Substation-Adjacent site · 305e8f3f · 55.0
- EC Near Collins · 2d422283 · 54.9
- Substation-Adjacent site · 38842c38 · 54.9
- Substation-Adjacent site · 5a83f894 · 54.8
- Substation-Adjacent site · d066524b · 54.6
- Substation-Adjacent site · 3a8ccdf0 · 54.3
- Greenfield (UNKNOWN133789 - DRESDEN STATIO) · 54.1
- EC Near Collins · db5a8a5f · 53.9
- Substation-Adjacent site · 5f09710e · 53.3
- Greenfield (LA SALLE - PLANO (345 KV)) · 53.2
- Greenfield (BRAIDWOOD - DAVIS CREEK) · 52.8
- EC Near Collins · 11d8c0a6 · 52.3
- EC Near Collins · 848a4228 · 50.2
- Greenfield (TAP138209 - TAP153344) · 48.9
- Mine Site · f81c47dc · 48.4
- Mine Site · f4b0522b · 48.2
Grundy datacenter FAQ
How many datacenter sites are in Grundy?
23 scored datacenter candidate sites, averaging 54.7/100 DC Readiness. That is the 36th-most of 101 Illinois counties with five or more sites.
What is the highest-scoring datacenter site in Grundy?
Collins scores 62.9/100 DC Readiness, the highest of the 23 scored sites in Grundy (a brownfield site).
Does Grundy offer datacenter tax incentives?
Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
What is the natural-hazard risk in Grundy?
FEMA's National Risk Index rates Grundy as "Relatively High" (score 35).
What are industrial electricity rates in Grundy?
Average industrial electricity is 5.29¢/kWh and commercial is 8.86¢/kWh in Grundy.
More in Illinois
- All datacenter sites in Illinois· 3,641 sites
- Operating datacenters in Illinois
- Electric substations in Illinois
- Cook County· 745 sites · avg 53.1
- Winnebago County· 193 sites · avg 51.1
- Stephenson County· 127 sites · avg 47.8
- Madison County· 112 sites · avg 55.9
- St. Clair County· 100 sites · avg 54.4
- Lake· 89 sites · avg 54.8
- Substation-Adjacent sites in Illinois
- Greenfield sites in Illinois
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 November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Grundy, Illinois”, https://gridcensus.com/datacenter-sites/illinois/grundy (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Grundy, Illinois 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.