Datacenter Sites in Lower Connecticut River Valley Planning Region, Connecticut
Lower Connecticut River Valley Planning Region has 51 scored datacenter candidate sites averaging 57.5/100 DC Readiness, with a catalogued aggregate of 3,900 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.
At a glance
Lower Connecticut River Valley Planning Region, Connecticut has 51 scored datacenter candidate sites averaging 57.5/100 DC Readiness, roughly in line with the Connecticut average of 56.7. It ranks 7th of 13 Connecticut counties by number of sites and 4th by average score. The top-scoring site is NO. WALL at 68.2/100.
Site-selection context for Lower Connecticut River Valley Planning Region
Incentive detail: Sales tax exemption on computer & data processing equipment.
How does Lower Connecticut River Valley Planning Region compare with other counties in Connecticut?
By number of scored sites, Lower Connecticut River Valley Planning Region ranks 7th of the 13 Connecticut counties with a county page, holding 5.5% of the state's 919 sites. Its average DC Readiness of 57.5/100 ranks 4th in the state and is roughly in line with the national average of 53.0. Nationally it has the 740th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 47 score 55 or higher.
What types of datacenter sites are in Lower Connecticut River Valley Planning Region?
Industrial sites are the most common (32, 63% of the county's inventory), followed by substation-adjacent (14) and former mine (4). 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 Lower Connecticut River Valley Planning Region?
FEMA's National Risk Index rates the county "Relatively Low" (20). WRI water stress is low. 10 fiber providers report service in the county. The climate runs 700 cooling degree days a year with a mean temperature of 50°F. Land is valued around $14,669 an acre.
By site type
Top datacenter sites in Lower Connecticut River Valley Planning Region
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| NO. WALL | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 68.2 |
| KLEEN | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.6 |
| SCOVILL ROCK | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.2 |
| HADDAM NECK | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 66.1 |
| HADDAM | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| MIDDLETOWN | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 62.1 |
| WEST SIDE | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.5 |
| PORTLAND | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.4 |
| P & W AIRCRAFT | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.2 |
| UNKNOWN158612 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.2 |
| BOKUM | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.2 |
| EAST MERIDEN | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.1 |
| DOOLEY | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.0 |
| GREEN HILL | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.9 |
| Portland Chemical | Industrial | — | — | 4.3 yrs | 55.7 |
| Cromwell Waterfront Property | Industrial | — | — | 4.3 yrs | 55.7 |
| Ferry Street/Green Street Revitalization Area | Industrial | — | — | 4.3 yrs | 55.6 |
| Riverfront Area 5 | Industrial | — | — | 4.3 yrs | 55.6 |
| MidState Autobody | Industrial | — | — | 4.3 yrs | 55.6 |
| Weston Property | Industrial | — | — | 4.3 yrs | 55.6 |
| Riverfront Area 2 | Industrial | — | — | 4.3 yrs | 55.6 |
| Jackson Corrugated Container | Industrial | — | — | 4.3 yrs | 55.6 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 55.6 |
| Remington Rand | Industrial | — | — | 4.3 yrs | 55.6 |
| Riverfront Area 3 | Industrial | — | — | 4.3 yrs | 55.6 |
Every scored site in Lower Connecticut River Valley Planning Region
All 51 sites, best first.
- NO. WALL · 68.2
- KLEEN · 67.6
- SCOVILL ROCK · 67.2
- HADDAM NECK · 66.1
- HADDAM · 65.9
- MIDDLETOWN · 62.1
- WEST SIDE · 61.5
- PORTLAND · 61.4
- Substation-Adjacent site · 11a6027b · 61.2
- BOKUM · 61.2
- P & W AIRCRAFT · 61.2
- EAST MERIDEN · 61.1
- DOOLEY · 61.0
- GREEN HILL · 60.9
- Portland Chemical · 55.7
- Cromwell Waterfront Property · 55.7
- Mine Site · 69ca306e · 55.6
- Main & Liberty · 55.6
- Ferry Street/Green Street Revitalization Area · 55.6
- Jackson Corrugated Container · 55.6
- Riverfront Area 2 · 55.6
- Riverfront Area 1 · 55.6
- Riverfront Area 5 · 55.6
- Remington Rand · 55.6
- MidState Autobody · 55.6
- Weston Property · 55.6
- Riverfront Area 3 · 55.6
- Steve's Gas Station · 55.6
- Harbor Drive Lot 4 · 55.5
- Former Jackson Corrugated Container · 55.5
- Mine Site · 1edf9a72 · 55.5
- 56 Hamlin Street · 55.5
- GLASTONBERY (HARTFORD) VOR · 70f05fe6 · 55.5
- Harbor Dr Lot 3 · 55.5
- Waste Water Treatment Plant · 55.5
- Peterson Oil Company · 55.5
- Riverfront Area 4 · 55.4
- Mine Site · 70b92881 · 55.3
- 25 Skinner Street, Brookside Ind. Complex Lot #2 · 55.1
- Gong Bell Site · 55.1
- 1 Watrous Street · 55.1
- 13 Watrous Street · 55.1
- Town Garage · 55.0
- Higganum Center · 55.0
- DOT Maintenance Facility · 55.0
- Higganum Firehouse · 55.0
- Higganum Cove · 55.0
- Higganum Reservoir State Park · 54.9
- Turnpike Auto Wreckers (former) · 54.2
- Turnpike Auto Wreckers · 54.2
- Mine Site · 4e6abf63 · 53.9
Lower Connecticut River Valley Planning Region datacenter FAQ
How many datacenter sites are in Lower Connecticut River Valley Planning Region?
51 scored datacenter candidate sites, averaging 57.5/100 DC Readiness. That is the 7th-most of 13 Connecticut counties with five or more sites.
What is the highest-scoring datacenter site in Lower Connecticut River Valley Planning Region?
NO. WALL scores 68.2/100 DC Readiness, the highest of the 51 scored sites in Lower Connecticut River Valley Planning Region (a substation-adjacent site).
Does Lower Connecticut River Valley Planning Region offer datacenter tax incentives?
Sales tax exemption on computer & data processing equipment.
What is the natural-hazard risk in Lower Connecticut River Valley Planning Region?
FEMA's National Risk Index rates Lower Connecticut River Valley Planning Region as "Relatively Low" (score 20).
More in Connecticut
- All datacenter sites in Connecticut· 919 sites
- Operating datacenters in Connecticut
- Electric substations in Connecticut
- Capitol County· 180 sites · avg 57.6
- Naugatuck Valley Planning Region· 159 sites · avg 57.5
- Southeastern Connecticut County· 103 sites · avg 56.8
- South Central Connecticut County· 100 sites · avg 57.2
- Western Connecticut County· 98 sites · avg 57.7
- Greater Bridgeport County· 81 sites · avg 58.2
- Industrial sites in Connecticut
- Substation-Adjacent sites in Connecticut
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 Lower Connecticut River Valley Planning Region, Connecticut”, https://gridcensus.com/datacenter-sites/connecticut/lower-connecticut-river-valley-planning-region (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 Lower Connecticut River Valley Planning Region, Connecticut 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.