v3.26.1
PENSION PLANS AND POST-RETIREMENT BENEFITS (Tables)
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.
Evergy
Three Months Ended
June 30		Year to Date
June 30
2026202520262025
Components of net periodic benefit costs(millions)
Pension Benefits
Service cost$10.3 $11.3 $20.6 $22.6 
Interest cost24.1 23.6 48.3 47.1 
Expected return on plan assets(22.6)(22.0)(45.2)(44.0)
Prior service cost0.5 0.4 1.0 0.9 
Recognized net actuarial gain(3.3)(4.6)(6.6)(9.2)
Net periodic benefit costs before regulatory adjustment and intercompany allocations9.0 8.7 18.1 17.4 
Regulatory adjustment4.8 4.1 8.7 7.3 
Net periodic benefit costs$13.8 $12.8 $26.8 $24.7 
Post-Retirement Benefits
Service cost$0.4 $0.3 $0.8 $0.7 
Interest cost2.0 2.5 4.1 5.0 
Expected return on plan assets(2.1)(2.7)(4.2)(5.4)
Prior service cost0.1 0.1 0.1 0.2 
Recognized net actuarial gain(0.5)(1.0)(1.0)(2.0)
Net periodic benefit income before regulatory adjustment and intercompany allocations(0.1)(0.8)(0.2)(1.5)
Regulatory adjustment(0.5)(0.2)(1.0)(0.4)
Net periodic benefit income$(0.6)$(1.0)$(1.2)$(1.9)
Evergy Kansas Central
Three Months Ended
June 30		Year to Date
June 30
2026202520262025
Components of net periodic benefit costs(millions)
Pension Benefits
Service cost$4.2 $4.7 $8.3 $9.3 
Interest cost12.0 11.9 24.1 23.8 
Expected return on plan assets(11.1)(10.8)(22.2)(21.5)
Prior service cost0.5 0.5 1.0 1.0 
Recognized net actuarial (gain) loss0.3 (0.1)0.6 (0.2)
Net periodic benefit costs before regulatory adjustment and intercompany allocations5.9 6.2 11.8 12.4 
Regulatory adjustment(1.7)(1.8)(3.9)(4.5)
Intercompany allocations(0.3)(0.9)(0.6)(1.5)
Net periodic benefit costs$3.9 $3.5 $7.3 $6.4 
Post-Retirement Benefits
Service cost$0.2 $0.3 $0.4 $0.5 
Interest cost0.9 1.3 2.0 2.6 
Expected return on plan assets(1.0)(1.4)(2.1)(2.8)
Prior service cost0.1 — 0.2 0.1 
Recognized net actuarial gain(0.3)(0.5)(0.6)(1.0)
Net periodic benefit income before regulatory adjustment and intercompany allocations(0.1)(0.3)(0.1)(0.6)
Regulatory adjustment(0.2)— (0.4)— 
Intercompany allocations— — (0.1)— 
Net periodic benefit income$(0.3)$(0.3)$(0.6)$(0.6)
Evergy Metro
Three Months Ended June 30Year to Date
June 30
2026202520262025
Components of net periodic benefit costs(millions)
Pension Benefits
Service cost$6.1 $6.6 $12.3 $13.3 
Interest cost11.8 11.4 23.7 22.8 
Expected return on plan assets(11.5)(11.2)(23.0)(22.5)
Recognized net actuarial gain(3.3)(4.3)(6.8)(8.6)
Net periodic benefit costs before regulatory adjustment and intercompany allocations3.1 2.5 6.2 5.0 
Regulatory adjustment6.3 5.7 12.3 11.5 
Intercompany allocations(0.7)0.2 (1.2)0.3 
Net periodic benefit costs$8.7 $8.4 $17.3 $16.8 
Post-Retirement Benefits
Service cost$0.2 $0.2 $0.4 $0.3 
Interest cost1.1 1.3 2.2 2.5 
Expected return on plan assets(1.1)(1.4)(2.3)(2.7)
Prior service cost(0.1)(0.1)(0.2)(0.2)
Recognized net actuarial gain(0.2)(0.6)(0.4)(1.0)
Net periodic benefit income before regulatory adjustment and intercompany allocations(0.1)(0.6)(0.3)(1.1)
Regulatory adjustment(0.2)(0.2)(0.5)(0.3)
Intercompany allocations0.1 0.3 0.3 0.4 
Net periodic benefit income$(0.2)$(0.5)$(0.5)$(1.0)