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Regulatory Assets and Liabilities (Tables)
12 Months Ended
Dec. 31, 2021
Regulated Operations [Abstract]  
Schedule of Regulatory Assets and Liabilities
Regulatory assets and liabilities reflected in the Consolidated Balance Sheets are presented below.
 
PNMTNMP
 December 31,December 31,
 2021202020212020
Assets:(In thousands)
Current:
FPPAC$7,130 $— $— $— 
Transmission cost recovery factor
— — 3,906 — 
Energy efficiency costs— — 2,158 202 
Other1,591 — — — 
8,721 — 6,064 202 
PNMTNMP
December 31,December 31,
2021202020212020
Assets (Continued):(In thousands)
Non-Current:
Coal mine reclamation costs(1)
$9,942 $9,980 $— $— 
Deferred income taxes68,687 65,564 9,505 9,817 
Loss on reacquired debt17,249 19,748 27,615 28,914 
Pension and OPEB(2)
165,006 190,147 17,924 22,863 
Shutdown of SJGS Units 2 and 3100,954 107,231 — — 
AMS surcharge— — 12,507 18,761 
AMS retirement and other costs— — 12,286 13,915 
Deferred cost under the ETA42,656 42,703 — — 
Deferred COVID-19 costs6,896 8,761 — 676 
SJGS replacement resources8,269 8,282 — — 
EIM7,028 2,209 — — 
Other2,294 3,328 5,440 4,891 
428,981 457,953 85,277 99,837 
Total regulatory assets$437,702 $457,953 $91,341 $100,039 
Liabilities:
Current:
FPPAC$— $(2,274)$— $— 
Renewable energy rider(5,989)(2,044)— — 
Energy efficiency costs(2,327)(1,101)— — 
Transmission cost recovery factor
— — — (2,052)
(8,316)(5,419)— (2,052)
Non-Current:
Cost of removal(294,193)(284,695)(73,029)(59,613)
Deferred income taxes(321,976)(343,844)(107,250)(119,695)
PVNGS ARO(1,215)(5,394)— — 
Renewable energy tax benefits
(16,756)(17,912)— — 
Accelerated depreciation SNCRs(3)
(16,331)(12,045)— — 
Pension and OPEB(2,376)— (6,099)(5,535)
COVID-19 cost savings(900)(900)— — 
Other(83)(83)(1,185)(512)
(653,830)(664,873)(187,563)(185,355)
Total regulatory liabilities$(662,146)$(670,292)$(187,563)$(187,407)
(1) Includes $9.3 million in coal mine reclamation costs related to PNM’s planned retirement of SJGS in 2022 and recoverable under the ETA as described in Note 16
(2) Includes $2.2 million for certain PNM pension costs as described in Note 11
(3) Amounts to be included under the ETA