XML 62 R49.htm IDEA: XBRL DOCUMENT v3.26.1
El Dorado Equity Investments (Tables)
 3 Months Ended
Mar. 31, 2026
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of El Dorado's Ownership Percentages and Carrying Value of Equity Method Investments The following table presents El Dorado’s ownership percentages and carrying value of investments accounted for under the equity method (dollars in millions):
Investee
Pinnacle West Ownership Percentage as of March 31, 2026
March 31, 2026December 31, 2025
SAI (a)17 %$26 $21 
Copper Sky (b)23 %16 15 
Total equity method investments$42 $36 
(a)El Dorado has no further funding commitments to SAI.
(b)El Dorado has a $25.0 million funding commitment to Copper Sky, previously AZ-VC, of which approximately $16.8 million has been funded as of March 31, 2026.