Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Long-term Purchase Commitment

As of March 31, 2023, other than discussed below, undiscounted minimum purchase obligations are approximately:


	CenterPoint Energy						CERC
	Natural Gas Supply		Electric Supply (1)		Other (2)		Natural Gas Supply
	(in millions)
Remaining nine months of 2023	$	431	$	141	$	134	$	426
2024	659		168		185		654
2025	555		702		22		551
2026	466		102		2		463
2027	397		104		—		394
2028	366		67		—		362
2029 and beyond	1,696		714		387		1,671

(1)CenterPoint Energy’s undiscounted minimum payment obligations related to PPAs with commitments ranging from 15 to 25 years and its purchase commitments under its BTA in Posey County, Indiana and its BTA in Pike County, Indiana are included above.

(2)The undiscounted payment obligations relate primarily to technology hardware and software agreements.

Schedule of Environmental Loss Contingencies by Site

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.


	March 31, 2023
	CenterPoint Energy		CERC
	(in millions, except years)
Amount accrued for remediation	$	16	$	14
Minimum estimated remediation costs	12		11
Maximum estimated remediation costs	51		44
Minimum years of remediation	5		5
Maximum years of remediation	50		50