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JOINTLY-OWNED ELECTRIC UTILITY PLANTS (Tables)
12 Months Ended
Dec. 31, 2023
Jointly Owned Electric Utility Plants [Abstract]  
Schedule of Jointly Owned Utility Plants
Evergy's, Evergy Kansas Central's and Evergy Metro's share of jointly-owned electric utility plants at December 31, 2023, are detailed in the following tables.
Evergy
Wolf Creek Unit
La Cygne Units (a)
Iatan No. 1 UnitIatan No. 2 UnitIatan CommonJeffrey Energy CenterState Line
(millions, except MW amounts)
Evergy's share94%100%88%73%79%100%40%
Electric plant in
   service
$4,328.9 $2,280.0 $793.6 $1,404.3 $517.5 $2,451.6 $134.9 
Accumulated depreciation
2,221.1 981.3 279.3 457.8 134.6 1,042.1 96.5 
Nuclear fuel, net203.0 — — — — — — 
Construction work in progress
192.6 33.6 13.5 10.1 3.4 186.8 7.7 
2024 accredited
   capacity-MWs
1,106 1,426 618 653 n/a2,186 209 
(a)    The VIE consolidated by Evergy and Evergy Kansas Central holds its 50% leasehold interest in La Cygne Unit 2. This 50% leasehold interest in La Cygne Unit 2 is reflected in the information provided above. See Note 19 for additional information.
Evergy Kansas Central
Wolf Creek Unit
La Cygne Units (a)
Jeffrey Energy CenterState
Line
(millions, except MW amounts)
Evergy Kansas Central's share47%50%92%40%
Electric plant in service$2,125.2 $1,049.7 $2,243.1 $134.9 
Accumulated depreciation1,082.6 530.7 958.2 96.5 
Nuclear fuel, net101.1 — — — 
Construction work in progress80.9 17.0 171.6 7.7 
2024 accredited capacity-MWs553 713 2,011 209 
(a)    The VIE consolidated by Evergy and Evergy Kansas Central holds its 50% leasehold interest in La Cygne Unit 2. This 50% leasehold interest in La Cygne Unit 2 is reflected in the information provided above. See Note 19 for additional information.
Evergy Metro
Wolf Creek UnitLa Cygne UnitsIatan No. 1 UnitIatan No. 2 UnitIatan Common
(millions, except MW amounts)
Evergy Metro's share47%50%70%55%61%
Electric plant in service$2,203.7 $1,230.3 $617.2 $1,059.7 $410.4 
Accumulated depreciation1,138.5 450.6 237.3 430.1 123.1 
Nuclear fuel, net101.9 — — — — 
Construction work in progress111.7 16.6 10.8 7.6 2.4 
2024 accredited capacity-MWs553 713 492 491 n/a