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REVENUES: Electric utility operating revenues (Tables)
 12 Months Ended
Dec. 31, 2025
Electric utility operating revenues [Line Items]  
Electric utility operating revenues
The following table provides a summary of electric utility operating revenues for IDACORP and Idaho Power (in thousands of dollars):
Year Ended December 31,
 202520242023
Electric utility operating revenues:
Revenue from contracts with customers$1,746,972 $1,768,881 $1,639,612 
Alternative revenue programs and derivative revenues62,637 54,084 123,282 
Total electric utility operating revenues$1,809,609 $1,822,965 $1,762,894 
Disaggregation of Revenue
Revenues from contracts with customers are primarily related to Idaho Power’s regulated tariff-based sales of energy or related services. Generally, tariff-based sales do not involve a written contract, but are classified as revenues from contracts with customers. Idaho Power assesses revenues on a contract-by-contract basis to determine the nature, amount, timing, and uncertainty, if any, of revenues being recognized.

The following table presents revenues from contracts with customers disaggregated by revenue source (in thousands of dollars):

Year Ended December 31,
 202520242023
Revenues from contracts with customers:
Retail revenues:
 Residential (includes $3,972, $(2,686), and $37,233, respectively, related to the FCA(1))
$708,126 $700,586 $684,649 
 Commercial (includes $(76), $(170), and $1,338, respectively, related to the FCA(1))
394,313 397,385 378,330 
Industrial270,571 267,211 244,538 
Irrigation198,468 196,401 173,929 
Deferred revenue related to HCC relicensing AFUDC(2)
(15,120)(8,803)(8,780)
Total retail revenues1,556,358 1,552,780 1,472,666 
Less: FCA mechanism revenues(1)
(3,896)2,856 (38,571)
Wholesale energy sales55,989 73,908 63,421 
Transmission wheeling-related revenues72,231 79,173 80,357 
Energy efficiency program revenues30,480 27,581 31,948 
Other revenues from contracts with customers35,810 32,583 29,791 
Total revenues from contracts with customers$1,746,972 $1,768,881 $1,639,612 
(1) The FCA mechanism is an alternative revenue program in the Idaho jurisdiction and does not represent revenue from contracts with customers.
(2) The IPUC allows Idaho Power to recover a portion of the AFUDC on construction work in progress related to the HCC relicensing process in its Idaho jurisdiction, even though the relicensing process is not yet complete and the costs have not been moved to utility plant in service. Effective October 1, 2025, Idaho Power began collecting $38.5 million annually. Prior to October 1, 2025, Idaho Power collected $8.8 million annually. For more information refer to Note 3 - "Regulatory Matters." Amounts collected in the Idaho jurisdiction are recognized as deferred revenue until the license is issued and the accumulated license costs approved for recovery are placed in service.
Alternative revenue programs and other revenues
The table below presents the FCA mechanism revenues and derivative revenues (in thousands of dollars):
Year Ended December 31,
 202520242023
Alternative revenue programs and derivative revenues:
FCA mechanism revenues$3,896 $(2,856)$38,571 
Derivative revenues58,741 56,940 84,711 
Total alternative revenue programs and derivative revenues$62,637 $54,084 $123,282