Review power assets, contract observations, facility specifications and relationships from public sources.
This partial collection preserves source-level observations. Generation and registered connection capacity are distinct from spare supply capacity for data centers. Planned dates and contract announcements do not confirm energization or supply commencement.
Current filters 2items · current page 1–2 · Source records, not unique facilities.
Power assets and projects · USA · eia860
Hartland Solar
Generation facilities · Unverified
Metric or condition
Source value
Basis, scope and stage
Grid Voltage (kV)
12.47 kV
Original source column definition · Power plant · Unverified As-of date 2025 Sources EV-c56be96fd83cb41f991f39ac
Detailed source fields
Original source field
Published value or condition
Utility ID
62915
Utility Name
Madison Energy Holdings LLC
Plant Code
65460
Plant Name
Hartland Solar
Street Address
280 Fuller Corner Road
City
Hartland
State
ME
Zip
4943
County
Somerset
Latitude
44.85045
Longitude
-69.45384
NERC Region
NPCC
Balancing Authority Code
ISNE
Balancing Authority Name
ISO New England Inc.
Primary Purpose (NAICS Code)
22
Regulatory Status
NR
Sector
2
Sector Name
IPP Non-CHP
FERC Cogeneration Status
N
FERC Small Power Producer Status
Y
FERC Small Power Producer Docket Number
22-493-000
FERC Exempt Wholesale Generator Status
N
Transmission or Distribution System Owner
Central Maine Power Co
Transmission or Distribution System Owner ID
3266
Transmission or Distribution System Owner State
ME
Grid Voltage (kV)
12.47
Energy Storage
N
Coordinate accuracy
source_precision_not_independently_surveyed
source_record_id
2___Plant_Y2025.xlsx#Plant:12597
Coordinates locate the plant, including when this record describes one generator.
Location: Plant location · not an individual generator location
Sources, reference dates and retrieval dates 1itemseia860 ↗
Data Source 2025 · Retrieved 2026-10-05
Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.
