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Datacenter Sites in Allegheny County, Pennsylvania

Allegheny County has 411 scored datacenter candidate sites averaging 56.5/100 DC Readiness, with a catalogued aggregate of 5,302 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Allegheny County, Pennsylvania has 411 scored datacenter candidate sites averaging 56.5/100 DC Readiness, roughly in line with the Pennsylvania average of 52.1. It ranks 1st of 65 Pennsylvania counties by number of sites and 6th by average score. The top-scoring site is BRUNOT ISLAND at 69.0/100.

411
Candidate sites
56.5/100
Avg DC Readiness
5,302 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Allegheny County

Site-selection context for Allegheny County

Yessales_tax_exemption
Datacenter tax incentive
9.81¢/kWh
Commercial electricity
7.42¢/kWh
Industrial electricity
15
Fiber providers
Low
Water stress
$10,009
Land price / acre
800
Cooling degree days
5,600
Heating degree days
50°F
Mean annual temp

Incentive detail: Keystone Opportunity Zone/KOEZ sales and property tax exemptions in designated areas.

How does Allegheny County compare with other counties in Pennsylvania?

By number of scored sites, Allegheny County ranks 1st of the 65 Pennsylvania counties with a county page, holding 6.3% of the state's 6,497 sites. Its average DC Readiness of 56.5/100 ranks 6th in the state and is roughly in line with the national average of 53.0. Nationally it has the 23rd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 272 score 55 or higher.

What types of datacenter sites are in Allegheny County?

Industrial sites are the most common (247, 60% of the county's inventory), followed by former mine (64) and greenfield (56). 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 Allegheny County?

Industrial electricity averages 7.42¢/kWh and commercial 9.81¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low. 15 fiber providers report service in the county. The climate runs 800 cooling degree days a year with a mean temperature of 50°F. Land is valued around $10,009 an acre.

By site type

Top datacenter sites in Allegheny County

Top datacenter sites in Allegheny County
SiteTypeVoltageCapacityQueue waitScore
BRUNOT ISLANDSubstation-Adjacent345 kV600 MW3.6 yrs69.0
Hazelwood Green’s Mill 19 SolarBrownfield—2 MW3.6 yrs68.1
TAP151899Substation-Adjacent345 kV600 MW3.6 yrs66.5
EC Coal Allegheny CountyGreenfield——3.6 yrs65.3
EC Coal Allegheny CountyGreenfield——3.6 yrs64.9
EC Near Brunot IslandGreenfield——3.6 yrs64.7
OZ AlleghenyGreenfield——3.6 yrs64.6
OZ AlleghenyGreenfield——3.6 yrs64.5
OZ AlleghenyGreenfield——3.6 yrs64.4
EC Coal Allegheny CountyGreenfield——3.6 yrs64.4
OZ AlleghenyGreenfield——3.6 yrs64.3
OZ AlleghenyGreenfield——3.6 yrs64.3
OZ AlleghenyGreenfield——3.6 yrs64.2
EC Coal Allegheny CountyGreenfield——3.6 yrs64.2
OZ AlleghenyGreenfield——3.6 yrs64.1
EC Coal Allegheny CountyGreenfield——3.6 yrs64.1
OZ AlleghenyGreenfield——3.6 yrs64.0
OZ AlleghenyGreenfield——3.6 yrs64.0
OZ AlleghenyGreenfield——3.6 yrs63.9
OZ AlleghenyGreenfield——3.6 yrs63.9
EC Near Brunot IslandGreenfield——3.6 yrs63.9
EC Coal Allegheny CountyGreenfield——3.6 yrs63.8
OZ AlleghenyGreenfield——3.6 yrs63.6
OZ AlleghenyGreenfield——3.6 yrs63.5
EC Near Brunot IslandGreenfield——3.6 yrs63.4

Every scored site in Allegheny County

All 411 sites, best first.

Allegheny County datacenter FAQ

How many datacenter sites are in Allegheny County?

411 scored datacenter candidate sites, averaging 56.5/100 DC Readiness. That is the most of 65 Pennsylvania counties with five or more sites.

What is the highest-scoring datacenter site in Allegheny County?

BRUNOT ISLAND scores 69.0/100 DC Readiness, the highest of the 411 scored sites in Allegheny County (a substation-adjacent site).

Does Allegheny County offer datacenter tax incentives?

Keystone Opportunity Zone/KOEZ sales and property tax exemptions in designated areas.

What is the natural-hazard risk in Allegheny County?

FEMA's National Risk Index rates Allegheny County as "Relatively Moderate" (score 28).

What are industrial electricity rates in Allegheny County?

Average industrial electricity is 7.42¢/kWh and commercial is 9.81¢/kWh in Allegheny County.

More in Pennsylvania

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 Allegheny County, Pennsylvania”, https://gridcensus.com/datacenter-sites/pennsylvania/allegheny-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 Allegheny County, Pennsylvania 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.

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