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Other Income and Other Expense (Tables)
 6 Months Ended
Jun. 30, 2025
Other Income and Expenses [Abstract]  
Schedule of Other Income and Other Expense
The following table provides detail of Pinnacle West’s consolidated other income and other expense (dollars in thousands):
Three Months Ended June 30,Six Months Ended June 30,
 2025202420252024
Other income:
Interest income (a)$4,260 $5,396 $10,256 $12,956 
Investment gain — net (b)6,504 — 17,488 — 
Gain on sale of BCE (Note 18)
— — — 22,988 
Miscellaneous1,340 489 1,821 548 
Total other income$12,104 $5,885 $29,565 $36,492 
Other expense:
Non-operating costs$(3,245)$(2,038)$(5,474)$(8,188)
Investment losses — net— (497)— (1,274)
Miscellaneous(1,014)(497)(1,355)(1,137)
Total other expense$(4,259)$(3,032)$(6,829)$(10,599)

(a)Interest income is primarily related to PSA interest. See Note 6.
(b)Investment gain is primarily related to El Dorado’s equity investment in SAI Advanced Power Solutions.
The following table provides detail of APS’s other income and other expense (dollars in thousands):
Three Months Ended June 30,Six Months Ended June 30,
 2025202420252024
Other income:
Interest income (a)$3,674 $4,602 $9,281 $11,398 
Miscellaneous— (11)115 48 
 Total other income$3,674 $4,591 $9,396 $11,446 
Other expense:
Non-operating costs$(2,876)$(2,397)$(4,868)$(4,652)
Miscellaneous(1,014)(497)(1,355)(1,136)
Total other expense$(3,890)$(2,894)$(6,223)$(5,788)
(a)Interest income is primarily related to PSA interest. See Note 6.