FieldProspects

Armstrong County, Pennsylvania

Armstrong County, Pennsylvania has 28 power projects in the FieldProspects database: 19 operating plants totaling 2.6 GW and 9 planned projects totaling 72 MW. No data center record lists the county. Coal leads with 1.9 GW across 2 projects. 2 planned projects are past their listed in-service date.

Data as of Grid region: PJM InterconnectionRefreshed monthly
28
power projects, planned and operating
72MW
planned generation, 9 projects
2.6GW
operating generation, 19 projects
2
planned projects past their listed in-service date
Map

Armstrong County and its neighbors

Counties shaded by data center MW on record, planned to operating. 4 of its 6 neighboring counties have pages of their own. The rest are in the member database.

Jefferson Allegheny 212.1 MW Armstrong no data centers Clarion no data centers Indiana 2.7 GW Butler Westmoreland 3 GW
no data center MWunder 100 MW100 to 1,000 MW1,000 to 5,000 MW5,000 to 15,000 MW15,000 MW or more no page yet

Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers

Headline finding
3%

of the county's operating generation is in the queue as new capacity: 72 MW planned across 9 projects against 2.6 GW operating, 2 of the planned projects already late.

Operating generation2.6 GW
Planned generation72 MW

Technology mix

28 projects, 2.7 GW planned and operating

Coal1.9 GW2 projects, 69%
Natural Gas688 MW4 projects, 25%
Solar72 MW9 projects, 3%
2 other technologies67 MW13 projects, 2%
Which companies own these 28 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

19 plants operate inside Armstrong County, 2.6 GW. The queue adds 72 MW across 9 projects, and 2 of them are past their listed in-service date.

Figure 1

Operating and planned generation by technology

MW in Armstrong County

OperatingPlanned
CoalOperating 1.9 GW 2 projects
Natural GasOperating 688 MW 4 projects
SolarPlanned 72 MW 9 projects
HydroOperating 55.8 MW 9 projects
OilOperating 11.2 MW 4 projects
View as table
TechnologyStatusProjectsMW
CoalOperating21,872
Natural GasOperating4688
SolarPlanned972
HydroOperating955.8
OilOperating411.2
Operating: 2.6 GW. Planned: 72 MW. If every planned project is built, county generation would reach 2.7 GW.
Source. FieldProspects database: ISO/RTO interconnection queues, EIA-860M and public data center filings, data as of October 8, 2026.
Figure 2

Planned generation by listed in-service year

MW. Years before 2026 are past due. 1 planned project lists no date and is left out.

Past dueDue 2026 or later
05101520 Snapshot year 15 2022 20 2023 2024 2025 2026 12 2027 6 2028
View as table
YearPlanned projectsMW
2022114.7
2023119.9
202400
202500
202600
2027411.5
202826
2 projects, 34.6 MW, were due before 2026

Armstrong County against its neighbors

Westmoreland County has the most data center MW among the neighbors, 3 GW. 2 of the 4 have more generation operating than data center MW on record.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Westmoreland County 1
3,000
1,166
175 2.6x
Indiana County 36
2,700
2,572
11,363 1x
Allegheny County 6
212
1,127
87 0.19x
Armstrong County this page 0
0
2,627
72 0x
Clarion County 0
0
30
121 0x

Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.

5 counties shown

What changed since June 4, 2026

9 projects in Armstrong County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.

Open the change feed
6
added to a queue, 17.5 MW
0
came online, started construction or signed an interconnection agreement, 0 MW
3
cancelled, dropped or went inactive, 89.6 MW
0
slipped their in-service date, 0 MW

Every change in Armstrong County

Project, what changed, technology, MW and the dates that moved, for all 9 changes.

Members only
County: Armstrong County, PASince June 4, 2026 9 changes
ProjectChangeTechnologyMWPrevious dateNew date
9 changes behind this preview

Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.

Request access

Every record in Armstrong County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 28 records. Filter, sort and export to Excel.

Members only
County: Armstrong County, PAStatus: all except cancelledSort: MW, largest first 28 records
Project or campusDeveloperStatusMWYearContacts
28 records and 2.7 GW behind this preview

Rows are hidden on public pages. Members see every field and can export up to 1,000 rows a month on Solo, unlimited on Unlimited.

Request access

Get alerts for Armstrong County

We email you when a data center or power project in Armstrong County is added, changes status, signs an interconnection agreement or slips its date. One email per snapshot, only when something changed.

One email per snapshot, only when something changed. Unsubscribe any time.

Open every campus, project and contact in Armstrong County.

Solo is $250 a month for one user. Unlimited is $500 for your whole team. Cancel any time.