FieldProspects

Penobscot County, Maine

Penobscot County, Maine has 92 power projects in the FieldProspects database: 91 operating plants totaling 1 GW and 1 planned project totaling 68 MW. No data center record lists the county. Natural Gas leads with 554 MW across 4 projects.

Data as of Grid region: ISO New EnglandRefreshed monthly
92
power projects, planned and operating
68MW
planned generation, 1 project
1GW
operating generation, 91 projects
0
planned projects past their listed in-service date
Map

Penobscot County and its neighbors

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

Aroostook 6 MW Washington no data centers Hancock no data centers Waldo no data centers Somerset no data centers Penobscot no data centers Piscataquis no data centers
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
7%

of the county's operating generation is in the queue as new capacity: 68 MW planned across 1 project against 1 GW operating.

Operating generation1 GW
Planned generation68 MW

Technology mix

92 projects, 1.1 GW planned and operating

Natural Gas554 MW4 projects, 50%
Hydro174.6 MW59 projects, 16%
Solar143.8 MW19 projects, 13%
4 other technologies233.3 MW10 projects, 21%
Which companies own these 92 projects?Project names, developers and contacts are for members.See what members get

Power generation in the county

91 plants operate inside Penobscot County, 1 GW. The queue adds 68 MW across 1 project.

Figure 1

Operating and planned generation by technology

MW in Penobscot County

OperatingPlanned
Natural GasOperating 554 MW 4 projects
HydroOperating 174.6 MW 59 projects
SolarOperating 75.8 MW 18 projects
SolarPlanned 68 MW 1 project
WindOperating 132 MW 4 projects
BiomassOperating 56 MW 3 projects
Municipal Solid WasteOperating 25.3 MW 1 project
Battery StorageOperating 20 MW 2 projects
View as table
TechnologyStatusProjectsMW
Natural GasOperating4554
HydroOperating59174.6
SolarOperating1875.8
SolarPlanned168
WindOperating4132
BiomassOperating356
Municipal Solid WasteOperating125.3
Battery StorageOperating220
Operating: 1 GW. Planned: 68 MW. If every planned project is built, county generation would reach 1.1 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.

Past dueDue 2026 or later
020406080 68 2029
View as table
YearPlanned projectsMW
2029168
No planned project is past its listed year

Penobscot County against its neighbors

Aroostook County has the most data center MW among the neighbors, 6 MW. 6 of the 6 have more generation operating than data center MW on record.

CountyData center recordsData center MWOperating generation MWPlanned generation MWData center MW per MW operating
Aroostook County 1
6
293
0 0.02x
Penobscot County this page 0
0
1,038
68 0x
Somerset County 0
0
498
158 0x
Hancock County 0
0
388
202 0x
Washington County 0
0
316
0 0x
Piscataquis County 0
0
211
0 0x
Waldo County 0
0
149
2 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.

7 counties shown

Every record in Penobscot County

Project name, developer, status, MW, in-service year and the developer’s contacts, for all 92 records. Filter, sort and export to Excel.

Members only
County: Penobscot County, MEStatus: all except cancelledSort: MW, largest first 92 records
Project or campusDeveloperStatusMWYearContacts
92 records and 1.1 GW behind this preview

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