Datacenter Sites in Barnstable County, Massachusetts
Barnstable County has 36 scored datacenter candidate sites averaging 50.1/100 DC Readiness, with a catalogued aggregate of 2,204 MW. FEMA rates local natural-hazard risk as "Relatively Low".
At a glance
Barnstable County, Massachusetts has 36 scored datacenter candidate sites averaging 50.1/100 DC Readiness, roughly in line with the Massachusetts average of 54.2. It ranks 12th of 13 Massachusetts counties by number of sites and 10th by average score. The top-scoring site is CANAL at 63.1/100.
Site-selection context for Barnstable County
How does Barnstable County compare with other counties in Massachusetts?
By number of scored sites, Barnstable County ranks 12th of the 13 Massachusetts counties with a county page, holding 1.9% of the state's 1,861 sites. Its average DC Readiness of 50.1/100 ranks 10th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1072nd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 3 score 55 or higher.
What types of datacenter sites are in Barnstable County?
Greenfield sites are the most common (15, 42% of the county's inventory), followed by substation-adjacent (10) and federal excess (5). 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 Barnstable County?
Industrial electricity averages 16.79¢/kWh and commercial 17.77¢/kWh. FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is low. 4 fiber providers report service in the county. The climate runs 600 cooling degree days a year with a mean temperature of 49°F. Land is valued around $58,917 an acre.
By site type
Top datacenter sites in Barnstable County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| CANAL | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 63.1 |
| UNKNOWN133456 | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 60.1 |
| Barnstable Landfill | Brownfield | 345 kV | 4 MW | 4.3 yrs | 58.0 |
| UNKNOWN133717 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.9 |
| UNKNOWN133718 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.9 |
| UNKNOWN133455 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.8 |
| UNKNOWN133715 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.6 |
| TAP170876 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.6 |
| UNKNOWN133721 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 53.4 |
| ORLEANS | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 52.8 |
| OZ Barnstable | Greenfield | — | — | 4.3 yrs | 52.8 |
| OZ Barnstable | Greenfield | — | — | 4.3 yrs | 52.6 |
| UNKNOWN158611 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 52.1 |
| OZ Barnstable | Greenfield | — | — | 4.3 yrs | 50.8 |
| EC Near Canal | Greenfield | — | — | 4.3 yrs | 50.7 |
| EC Near Canal | Greenfield | — | — | 4.3 yrs | 50.0 |
| EC Near Canal | Greenfield | — | — | 4.3 yrs | 49.3 |
| Massachusetts National Cemetery | Federal Excess | — | — | 4.3 yrs | 48.3 |
| OZ Barnstable | Greenfield | — | — | 4.3 yrs | 48.0 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 47.9 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 47.9 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 47.7 |
| WOODS HOLE SCIENCE CENTER | Federal Excess | — | — | 4.3 yrs | 47.6 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 47.6 |
| EC Near Canal | Greenfield | — | — | 4.3 yrs | 47.5 |
Every scored site in Barnstable County
All 36 sites, best first.
- CANAL · 63.1
- Substation-Adjacent site · 85e05d81 · 60.1
- Barnstable Landfill · 58.0
- Substation-Adjacent site · 29f66304 · 53.9
- Substation-Adjacent site · db91da53 · 53.9
- Substation-Adjacent site · 8d5c8ac3 · 53.8
- Substation-Adjacent site · c2e10597 · 53.6
- Substation-Adjacent site · 0fd4fac9 · 53.6
- Substation-Adjacent site · 7f8c0dae · 53.4
- ORLEANS · 52.8
- OZ Barnstable · 0fbcbe15 · 52.8
- OZ Barnstable · 94cb015e · 52.6
- Substation-Adjacent site · 6a8654e7 · 52.1
- OZ Barnstable · 34a75de8 · 50.8
- EC Near Canal · ccaf0fa7 · 50.7
- EC Near Canal · f75816c4 · 50.0
- EC Near Canal · 3b66a3e6 · 49.3
- Massachusetts National Cemetery · ecf0b8bf · 48.3
- OZ Barnstable · 4bd6cd67 · 48.0
- Mine Site · ad6e0458 · 47.9
- Mine Site · 7d7dbae1 · 47.9
- Mine Site · 97cb4369 · 47.7
- WOODS HOLE SCIENCE CENTER · 9f5856c8 · 47.6
- Mine Site · 536b67b6 · 47.6
- EC Near Canal · 4f268856 · 47.5
- Greenfield (UNKNOWN133717 - ORLEANS) · 46.9
- Greenfield (ORLEANS - TAP170876) · 46.8
- EC Near Canal · 1ce2fb3c · 46.8
- Mine Site · f1458b3b · 46.5
- EC FFE Barnstable County · 46.5
- EC Near Canal · b12047ad · 46.3
- EC Near Canal · 44527acc · 46.2
- OZ Barnstable · 85459cdd · 45.6
- NORTH TRURO · 0984605f · 45.5
- NORTH TRURO · c1b96180 · 45.5
- NORTH TRURO, MA · 3191f311 · 45.5
Barnstable County datacenter FAQ
How many datacenter sites are in Barnstable County?
36 scored datacenter candidate sites, averaging 50.1/100 DC Readiness. That is the 12th-most of 13 Massachusetts counties with five or more sites.
What is the highest-scoring datacenter site in Barnstable County?
CANAL scores 63.1/100 DC Readiness, the highest of the 36 scored sites in Barnstable County (a substation-adjacent site).
Does Barnstable County offer datacenter tax incentives?
No datacenter-specific tax incentive is on record for Barnstable County in the GridCensus county dataset.
What is the natural-hazard risk in Barnstable County?
FEMA's National Risk Index rates Barnstable County as "Relatively Low" (score 22).
What are industrial electricity rates in Barnstable County?
Average industrial electricity is 16.79¢/kWh and commercial is 17.77¢/kWh in Barnstable County.
More in Massachusetts
- All datacenter sites in Massachusetts· 1,861 sites
- Operating datacenters in Massachusetts
- Electric substations in Massachusetts
- Worcester County· 283 sites · avg 53.4
- Middlesex· 281 sites · avg 56.9
- Essex County· 216 sites · avg 54.5
- Suffolk County· 206 sites · avg 56.5
- Hampden County· 175 sites · avg 54.8
- Bristol County· 161 sites · avg 52.5
- Greenfield sites in Massachusetts
- Substation-Adjacent sites in Massachusetts
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 Barnstable County, Massachusetts”, https://gridcensus.com/datacenter-sites/massachusetts/barnstable-county (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 Barnstable County, Massachusetts 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.