v3.26.1
DERIVATIVE INSTRUMENTS (Tables)
 6 Months Ended
Jun. 30, 2026
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
The gross notional contract amount by commodity type for non-hedging derivative instruments is summarized in the following table.
June 30December 31
Non-hedging derivativesNotional volume unit of measure20262025
Evergy(millions)
Commodity contracts
PowerMWhs133.8 63.0 
Natural gasMMBtu101.6 54.6 
Evergy Kansas Central
Commodity contracts
PowerMWhs79.3 41.0 
Natural gasMMBtu101.6 54.6 
Evergy Metro
Commodity contracts
PowerMWhs40.6 16.5 
Fair value of open derivative positions, gross values before netting agreements and netting of cash collateral [Table Text Block]
The fair values of Evergy's open non-hedging derivative positions and balance sheet classifications are summarized in the following tables. The fair values below are gross values before netting agreements and netting of cash collateral.
June 30December 31
Evergy20262025
Non-hedging derivativesBalance sheet location
Commodity contracts(millions)
PowerOther assets - current$92.0 $40.8 
Other assets - long-term44.8 35.1 
Natural gasOther assets - current6.7 6.4 
Total derivative assets$143.5 $82.3 
Commodity contracts
PowerOther liabilities - current$60.7 $30.8 
Other liabilities - long-term47.8 37.0 
Natural gasOther liabilities - current7.5 6.7 
Other liabilities - long-term— 0.1 
Total derivative liabilities$116.0 $74.6 
June 30December 31
Evergy Kansas Central20262025
Non-hedging derivativesBalance sheet location
Commodity contracts(millions)
PowerOther assets - current$60.4 $33.4 
Other assets - long-term44.8 35.1 
Natural gasOther assets - current6.7 6.4 
Total derivative assets$111.9 $74.9 
Commodity contracts
PowerOther liabilities - current$59.3 $27.9 
Other liabilities - long-term47.8 37.0 
Natural gasOther liabilities - current7.5 6.7 
Other liabilities - long-term— 0.1 
Total derivative liabilities$114.6 $71.7 
June 30December 31
Evergy Metro20262025
Non-hedging derivativesBalance sheet location
Commodity contracts(millions)
PowerOther assets - current$29.2 $6.6 
Total derivative assets$29.2 $6.6 
Commodity contracts
PowerOther liabilities - current$1.0 $2.3 
Total derivative liabilities$1.0 $2.3 
Offsetting Derivative Assets and Liabilities [Table Text Block]
The following tables present the line items on the Evergy Companies' consolidated balance sheets where non-hedging derivative assets and liabilities are reported. The gross amounts offset in the tables below show the effect of master netting arrangements and include collateral posted to offset the net position.
June 30, 2026EvergyEvergy Kansas CentralEvergy Metro
Non-hedging derivatives(millions)
Derivative Assets
Current
Gross amounts recognized$98.7 $67.1 $29.2 
Gross amounts offset(48.5)(47.2)(1.0)
Net amounts presented in other assets - current$50.2 $19.9 $28.2 
Long-Term
Gross amounts recognized$44.8 $44.8 $— 
Gross amounts offset(17.8)(17.8)— 
Net amounts presented in other assets - long-term$27.0 $27.0 $— 
Derivative Liabilities
Current
Gross amounts recognized$68.2 $66.8 $1.0 
Gross amounts offset(48.3)(46.9)(1.0)
Net amounts presented in other liabilities - current$19.9 $19.9 $— 
Long-Term
Gross amounts recognized$47.8 $47.8 $— 
Gross amounts offset(17.6)(17.6)— 
Net amounts presented in other liabilities - long-term$30.2 $30.2 $— 
December 31, 2025EvergyEvergy Kansas CentralEvergy Metro
Non-hedging derivatives(millions)
Derivative Assets
Current
Gross amounts recognized$47.2 $39.8 $6.6 
Gross amounts offset(29.9)(27.0)(2.3)
Net amounts presented in other assets - current$17.3 $12.8 $4.3 
Long-Term
Gross amounts recognized$35.1 $35.1 $— 
Gross amounts offset(8.0)(8.0)— 
Net amounts presented in other assets - long-term$27.1 $27.1 $— 
Derivative Liabilities
Current
Gross amounts recognized$37.5 $34.6 $2.3 
Gross amounts offset(29.3)(26.4)(2.3)
Net amounts presented in other liabilities - current$8.2 $8.2 $— 
Long-Term
Gross amounts recognized$37.1 $37.1 $— 
Gross amounts offset(7.5)(7.5)— 
Net amounts presented in other liabilities - long-term$29.6 $29.6 $— 
Derivative Instruments, Gain (Loss) [Table Text Block]
The following table summarizes the amounts of gain recognized in income for the change in fair value of derivatives not designated as hedging instruments for the Evergy Companies.
Three Months Ended
June 30		Year to Date
June 30
Non-hedging derivatives - Location of gain Contract type2026202520262025
Evergy(millions)
Operating revenuesCommodity$4.1 $10.1 $26.9 $15.8 
Total$4.1 $10.1 $26.9 $15.8 
Evergy Kansas Central
Operating revenuesCommodity$4.1 $10.1 $26.9 $15.8 
Total$4.1 $10.1 $26.9 $15.8 
Schedule of gross notional contract amount by type for hedging derivatives
The following table summarizes the gross notional contract amount by type for hedging derivative instruments.
Hedging derivatives - Cash flow hedgeNotional volume unit of measureJune 30December 31
20262025
Evergy(millions)
Interest rate swapsUSD$100.0 $100.0 
Schedule of Interest Rate Derivatives [Table Text Block]
The fair value of Evergy's open hedging derivative positions and balance sheet classifications are summarized in the following table. The fair values represent both the gross and net impact of netting agreements and the netting of cash collateral.
Hedging derivatives - Cash flow hedgeBalance sheet locationJune 30December 31
20262025
Interest rate swaps(millions)
Other assets - long-term$1.2 $0.6 
Total derivative assets$1.2 $0.6