XML 117 R89.htm IDEA: XBRL DOCUMENT v3.24.0.1
COMMITMENTS: Commitments Level 4 (Details)
 12 Months Ended
Dec. 31, 2023
USD ($)
MWh
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2026
MWh
Long-term Purchase Commitment        
Purchased power $ 501,531,000 $ 544,345,000 $ 393,691,000  
Bridger Coal Company        
Long-term Purchase Commitment        
IERCo guarantee of BCC reclamation obligation 142,900,000      
Distributions from Reclamation Trust Fund 6,000,000      
Guarantor Obligations Total Reclamation Trust Fund $ 253,300,000      
Idaho Power Company        
Long-term Purchase Commitment        
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage 33.00%      
IERCo guarantee of BCC reclamation obligation $ 47,600,000      
Purchased power $ 501,531,000 544,345,000 393,691,000  
Idaho Power Company | PURPA and Non-PURPA Online        
Long-term Purchase Commitment        
Nameplate Capacity (in MW) | MWh 1,432      
Idaho Power Company | Jointly Owned Electricity Transmission and Distribution System        
Long-term Purchase Commitment        
Interest in Boardman-to-Hemmingway transmission project 45.00%      
Security Deposit Received, B2H Transmission Project $ 10,000,000      
Construction in Progress, Permitting Interest Acquired 31,400,000      
Cash and Cash Equivalents, Security Deposit 10,000,000      
Other Noncurrent Liabilities, Security Deposit and Permitting Interest $ 41,400,000      
BPA permitting interest payment to be made over time period 15 years      
BPA security deposit to begin after years of energization 10 years      
Interest in Boardman-to-Hemmingway transmission project acquired from Bonneville Power Administration 24.00%      
Idaho Power Company | Joint-operating agreement payment [Member]        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current [1] $ 2,834,000      
Purchase Obligation Estimated Future Payments Due In Two Years [1] 2,834,000      
Purchase Obligation Estimated Future Payments Due In Three Years [1] 2,834,000      
Purchase Obligation Estimated Future Payments Due In Four Years [1] 2,834,000      
Purchase Obligation Estimated Future Payments Due In Five Years [1] 2,834,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter [1] 14,172,000      
Idaho Power Company | Easements and Other payments [Member]        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current [1] 2,119,000      
Purchase Obligation Estimated Future Payments Due In Two Years [1] 2,163,000      
Purchase Obligation Estimated Future Payments Due In Three Years [1] 2,209,000      
Purchase Obligation Estimated Future Payments Due In Four Years [1] 2,255,000      
Purchase Obligation Estimated Future Payments Due In Five Years [1] 2,302,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter [1] 12,258,000      
Idaho Power Company | Other operations and maintenance        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current [1],[2] 321,776,000      
Purchase Obligation Estimated Future Payments Due In Two Years [1],[2] 29,042,000      
Purchase Obligation Estimated Future Payments Due In Three Years [1] 11,273,000      
Purchase Obligation Estimated Future Payments Due In Four Years [1] 13,386,000      
Purchase Obligation Estimated Future Payments Due In Five Years [1] 3,450,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter [1] 41,118,000      
Idaho Power Company | FERC and other industry-related fees        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current [1] 18,514,000      
Purchase Obligation Estimated Future Payments Due In Two Years [1] 17,020,000      
Purchase Obligation Estimated Future Payments Due In Three Years [1] 16,830,000      
Purchase Obligation Estimated Future Payments Due In Four Years [1] 16,780,000      
Purchase Obligation Estimated Future Payments Due In Five Years [1] 15,949,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter [1] 83,032,000      
Idaho Power Company | Cogeneration and power production        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current [3] 324,738,000      
Purchase Obligation Estimated Future Payments Due In Two Years [3] 336,702,000      
Purchase Obligation Estimated Future Payments Due In Three Years [3] 358,113,000      
Purchase Obligation Estimated Future Payments Due In Four Years [3] 371,980,000      
Purchase Obligation Estimated Future Payments Due In Five Years [3] 345,740,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter [3] 2,999,760,000      
Idaho Power Company | Fuel purchase commitments        
Long-term Purchase Commitment        
Purchase Obligation Estimated Due Current 155,474,000      
Purchase Obligation Estimated Future Payments Due In Two Years 25,672,000      
Purchase Obligation Estimated Future Payments Due In Three Years 15,271,000      
Purchase Obligation Estimated Future Payments Due In Four Years 15,439,000      
Purchase Obligation Estimated Future Payments Due In Five Years 15,507,000      
Purchase Obligation Estimated Future Payments Due In Six Years And Thereafter $ 84,004,000      
Idaho Power Company | Cogeneration And Power Production Purchase Commitment Member | Maximum        
Long-term Purchase Commitment        
Long-term Purchase Commitment, Period 35 years      
Idaho Power Company | Cogeneration And Power Production Purchase Commitment Member | Minimum        
Long-term Purchase Commitment        
Long-term Purchase Commitment, Period 1 year      
Idaho Power Company | Contracts To Acquire And Own Battery Storage Assets Commitment        
Long-term Purchase Commitment        
Purchase Obligation $ 115,000,000      
Idaho Power Company | Contracts To Purchase Battery Storage Capacity Commitment        
Long-term Purchase Commitment        
Nameplate Capacity (in MW) | MWh 150      
Purchase Obligation $ 431,000,000      
Idaho Power Company | Long-Term Power Production Purchase Commitment        
Long-term Purchase Commitment        
Purchased power 258,000,000 $ 238,000,000 $ 251,000,000  
IDACORP [Member]        
Long-term Purchase Commitment        
Long-term Purchase Commitment, Amount 5,900,000      
IDACORP [Member] | Affordable housing limited partnership and other real estate tax credit investments        
Long-term Purchase Commitment        
Long-term Purchase Commitment, Amount 34,700,000      
Forecast | Idaho Power Company | PURPA and Non-PURPA Online        
Long-term Purchase Commitment        
Nameplate Capacity (in MW) | MWh       428
Contracts with no expiration [Member] | Idaho Power Company | Joint-operating agreement payment [Member]        
Long-term Purchase Commitment        
Purchase Obligation 28,000,000      
Contracts with no expiration [Member] | Idaho Power Company | Easements and Other payments [Member]        
Long-term Purchase Commitment        
Purchase Obligation 1,000,000      
Contracts with no expiration [Member] | Idaho Power Company | Other operations and maintenance        
Long-term Purchase Commitment        
Purchase Obligation 20,000,000      
Contracts with no expiration [Member] | Idaho Power Company | FERC and other industry-related fees        
Long-term Purchase Commitment        
Purchase Obligation $ 166,000,000      
[1] Approximately $28 million, $1 million, $20 million, and $166 million of the commitments included in joint-operating agreement payments, easements and other payments, maintenance, service, and materials agreements, and FERC and other industry-related fees, respectively, have contracts that do not specify terms related to expiration. As these contracts are presumed to continue indefinitely, ten years of information, estimated based on current contract terms, has been included in the table for presentation purposes.
[2] As of December 31, 2023, Idaho Power had a remaining $115 million commitment related to four contracts to acquire and own battery storage assets with in-service dates through 2025.
[3] As of December 31, 2023, Idaho Power had a $431 million commitment related to an agreement to utilize the storage capacity of a 150 MW battery storage facility, over a 20-year term, scheduled to be online in June 2025.