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
Hallmark
Generation facilities · Unverified
Metric or condition
Source value
Basis, scope and stage
Grid Voltage (kV)
69 kV
Original source column definition · Power plant · Unverified As-of date 2025 Sources EV-c303e41a3d9a4dcf7c505216
Detailed source fields
Original source field
Published value or condition
Utility ID
55983
Utility Name
Luminant Generation Company LLC
Plant Code
63234
Plant Name
Hallmark
Street Address
25106 Hwy 67 S
City
Greenville
State
TX
Zip
75401
County
Hunt
Latitude
33.18
Longitude
-96.097234
NERC Region
TRE
Balancing Authority Code
ERCO
Balancing Authority Name
Electric Reliability Council of Texas, 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
N
FERC Exempt Wholesale Generator Status
N
Ash Impoundment?
N
Transmission or Distribution System Owner
Oncor Electric Delivery Company LLC
Transmission or Distribution System Owner ID
44372
Transmission or Distribution System Owner State
TX
Grid Voltage (kV)
69
Energy Storage
N
Coordinate accuracy
source_precision_not_independently_surveyed
source_record_id
2___Plant_Y2025.xlsx#Plant:10548
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.
