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JOINTLY-OWNED ELECTRIC UTILITY PLANTS
 12 Months Ended
Dec. 31, 2022
Jointly Owned Electric Utility Plants [Abstract]  
JOINTLY-OWNED ELECTRIC UTILITY PLANTS JOINTLY-OWNED ELECTRIC UTILITY PLANTS
Evergy's, Evergy Kansas Central's and Evergy Metro's share of jointly-owned electric utility plants at December 31, 2022, 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		$4,132.4 $2,251.9 $773.6 $1,409.5 $508.2 $2,546.9 $115.0 
Accumulated depreciation
2,124.5 874.2 269.0 506.2 132.4 1,102.3 89.9 
Nuclear fuel, net165.8 — — — — — — 
Construction work in progress
209.1 25.9 19.8 5.3 11.2 60.1 26.9 
2023 accredited
   capacity-MWs		1,106 1,426 618 653 n/a2,182 205 
(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$2,070.5 $1,052.3 $2,331.3 $115.0 
Accumulated depreciation1,036.1 503.6 1,006.7 89.9 
Nuclear fuel, net82.2 — — — 
Construction work in progress99.9 10.0 55.2 26.9 
2023 accredited capacity-MWs553 713 2,007 205 
(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$2,061.9 $1,199.6 $601.0 $1,068.9 $403.2 
Accumulated depreciation1,088.4 370.6 219.6 431.0 111.5 
Nuclear fuel, net83.6 — — — — 
Construction work in progress109.2 15.9 15.8 4.0 8.5 
2023 accredited capacity-MWs553 713 492 491 n/a
Each owner must fund its own portion of the plant's operating expenses and capital expenditures. The Evergy Companies' share of direct expenses are included in the appropriate operating expense classifications in Evergy's, Evergy Kansas Central's and Evergy Metro's consolidated financial statements.