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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Purchase Obligations
As of December 31, 2024, CenterPoint Energy and CERC had the following undiscounted minimum purchase obligations:
CenterPoint EnergyCERC
Natural Gas Supply Electric Supply (1)
Other (2)
Natural Gas Supply
(in millions)
2025$635 $83 $95 $631 
2026601 130 100 597 
2027517 135 18 513 
2028473 97 8 470 
2029459 94 2 456 
Thereafter1,566 1,303 190 1,544 
Total$4,251 $1,842 $413 $4,211 
(1)Related to PPAs with commitments ranging from 15 years to 25 years.
(2)Related primarily to technology hardware and software agreements.
Schedule of Estimated Accrued Costs
Total costs that may be incurred in connection with addressing these sites cannot be determined at this time. The estimated accrued costs are limited to CenterPoint Energy’s and CERC’s share of the remediation efforts and are therefore net of exposures of other PRPs. The estimated range of possible remediation costs for the sites for which CenterPoint Energy and CERC believe they may have responsibility was based on remediation continuing for the minimum time frame given in the table below:
December 31, 2024
CenterPoint EnergyCERC
(in millions, except years)
Amount accrued for remediation$13 $11 
Minimum estimated remediation costs8 7 
Maximum estimated remediation costs47 40 
Minimum years of remediation55
Maximum years of remediation5050