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Related Party Transactions
 9 Months Ended
Sep. 30, 2023
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
PNMR, PNM, TNMP, and NMRD are considered related parties, as is PNMR Services Company, a wholly-owned subsidiary of PNMR that provides corporate services to PNMR and its subsidiaries in accordance with shared services agreements. These services are billed at cost on a monthly basis to the business units. In addition, PNMR provides construction and operations and maintenance services to NMRD, a 50% owned subsidiary of PNMR Development. PNM purchases renewable energy from certain NMRD-owned facilities at a fixed price per MWh of energy produced. PNM also provides interconnection services to PNMR Development and NMRD. See Note 16 for additional discussion of NMRD. The table below summarizes the nature and amount of related party transactions of PNMR, PNM, TNMP, and NMRD:
Three Months EndedNine Months Ended
September 30,September 30,
2023202220232022
(In thousands)
Services billings:
PNMR to PNM$29,509 $26,281 $90,151 $82,352 
PNMR to TNMP10,976 9,554 34,703 30,110 
PNM to TNMP100 107 269 322 
TNMP to PNMR35 35 106 106 
PNMR to NMRD71 81 235 226 
Renewable energy purchases:
PNM from NMRD3,652 3,221 9,761 9,642 
Interconnection and facility study billings:
PNM to NMRD— — — — 
PNM to PNMR— — — — 
NMRD to PNM— — — — 
Interest billings:
PNMR to PNM8 4 18 13 
PNM to PNMR153 73 426 143 
PNMR to TNMP117 50 128 166 
Income tax sharing payments:
PNMR to PNM— — — — 
TNMP to PNMR— — — —