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Construction Program and Jointly-Owned Electric Generating Plants (Tables)
12 Months Ended
Dec. 31, 2021
Construction Program and Jointly-Owned Electric Generating Plants [Abstract]  
Summary of Interests and Investments in Jointly-Owned Generating Facilities
At December 31, 2021, PNM’s interests and investments in jointly-owned generating facilities are:
Station (Fuel Type)Plant in
Service
Accumulated
Depreciation(1)
Construction
Work in
Progress
Composite
Interest
 (In thousands)
SJGS (Coal)$815,361 $455,159 $10 66.35 %
PVNGS (Nuclear) (2)
$869,363 $403,764 $38,770 10.20 %
Four Corners Units 4 and 5 (Coal)$316,033 $100,156 $6,294 13.00 %
Luna (Gas)$80,159 $31,244 $46 33.33 %
(1) Includes cost of removal.
(2) Includes interest in PVNGS Unit 3, interest in common facilities for all PVNGS units, and owned interests in PVNGS Units 1 and 2, including improvements.