FieldProspects

Mercer County, Pennsylvania

Mercer County, Pennsylvania has 10 power projects in the FieldProspects database: 1 operating plant totaling 4.4 MW and 9 planned projects totaling 274.9 MW. No data center record lists the county. Solar leads with 274.9 MW across 9 projects. 4 planned projects are past their listed in-service date.

Data as of Grid region: PJM InterconnectionRefreshed monthly
10
power projects, planned and operating
274.9MW
planned generation, 9 projects
4.4MW
operating generation, 1 oil project
4
planned projects past their listed in-service date
Map

Mercer County and its neighbors

Counties shaded by data center MW on record, planned to operating. 3 of its 4 neighboring counties have pages of their own. The rest are in the member database.

Venango no data centers Lawrence no data centers Mercer no data centers Crawford no data centers Butler
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
62.5times

more planned than operating generation in Mercer County. 9 projects in the queue would add 274.9 MW to the 4.4 MW operating today, and 4 of them are past their listed in-service date.

Operating generation4.4 MW
Planned generation274.9 MW

Technology mix

10 projects, 279.3 MW planned and operating

Solar274.9 MW9 projects, 98%
Oil4.4 MW1 project, 2%
Which companies own these 10 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

1 plant operate inside Mercer County, 4.4 MW of oil. The queue adds 274.9 MW across 9 projects, and 4 of them are past their listed in-service date.

Figure 1

Operating and planned generation by technology

MW in Mercer County

OperatingPlanned
SolarPlanned 274.9 MW 9 projects
OilOperating 4.4 MW 1 project
View as table
TechnologyStatusProjectsMW
SolarPlanned9274.9
OilOperating14.4
Operating: 4.4 MW. Planned: 274.9 MW. If every planned project is built, county generation would reach 279.3 MW.
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.

Past dueDue 2026 or later
050100150 Snapshot year 95 2023 20 2024 2025 40 2026 120 2027
View as table
YearPlanned projectsMW
2023395
2024120
202500
2026240
20273119.9
4 projects, 115 MW, were due before 2026

Mercer County against its neighbors

None of the 3 neighboring counties with a page lists a data center record. Lawrence County has the most operating generation among them, 1.4 GW.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Lawrence County 0
0
1,388
562 0x
Venango County 0
0
409
260 0x
Mercer County this page 0
0
4
275 0x
Crawford County 0
0
0
418 no operating MW

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.

4 counties shown

What changed since June 4, 2026

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

Open the change feed
0
added to a queue, 0 MW
2
came online, started construction or signed an interconnection agreement, 100 MW
4
cancelled, dropped or went inactive, 81.6 MW
0
slipped their in-service date, 0 MW

Every change in Mercer County

Project, what changed, technology, MW and the dates that moved, for all 6 changes.

Members only
County: Mercer County, PASince June 4, 2026 6 changes
ProjectChangeTechnologyMWPrevious dateNew date
6 changes behind this preview

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

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Every record in Mercer County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 10 records. Filter, sort and export to Excel.

Members only
County: Mercer County, PAStatus: all except cancelledSort: MW, largest first 10 records
Project or campusDeveloperStatusMWYearContacts
10 records and 279.3 MW behind this preview

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