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Short-term Borrowings and Long-term Debt
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Short-term Borrowings and Long-term Debt Short-term Borrowings and Long-term Debt
Inventory Financing. CenterPoint Energy’s and CERC’s Natural Gas businesses utilize third-party AMAs associated with their utility distribution service in Indiana, Louisiana, Minnesota, Mississippi and Texas. The AMAs have varying terms, the
longest of which expires in 2029. Pursuant to the provisions of the agreements, CenterPoint Energy’s and CERC’s Natural Gas either sells natural gas to the asset manager and agrees to repurchase an equivalent amount of natural gas throughout the year at the same cost, or simply purchases its full natural gas requirements at each delivery point from the asset manager. Certain of these transactions are accounted for as an inventory financing. CenterPoint Energy and CERC had $2 million outstanding obligations related to the AMAs as of June 30, 2024 and $4 million as of December 31, 2023, recorded in Short-term borrowings on CenterPoint Energy’s and CERC’s Condensed Consolidated Balance Sheets.

Debt Issuance. In February 2024, Houston Electric issued $400 million aggregate principal amount of 5.15% general mortgage bonds due 2034. Total proceeds, net of discount, transaction expenses and fees, were approximately $395 million, which were used for general limited liability company purposes, including capital expenditures and working capital purposes.

In May 2024, CenterPoint Energy issued $700 million aggregate principal amount of 5.40% senior notes due 2029. Total proceeds, net of discount, transaction expenses and fees, were approximately $693 million, which were used for general corporate purposes, including the redemption of $350 million aggregate principal amount of CenterPoint’s outstanding floating rate senior notes due 2024, as further described below.

In June 2024, CERC issued $400 million aggregate principal amount of 5.40% senior notes due 2034. Total proceeds, net of discount, transaction expenses and fees, were approximately $396 million, which were used for general corporate purposes, including working capital purposes.

In June 2024, Houston Electric entered into a delayed draw term loan agreement pursuant to which the banks party thereto have committed to provide term loans in an aggregate principal amount of up to $300 million. The term loan agreement also permits Houston Electric to request additional commitments and/or additional loans, such additional commitments and/or loans not to exceed $200 million and subject to the satisfaction of certain customary conditions precedent. The borrowings under the term loan agreement bear interest at Houston Electric’s option, at a rate equal to either (i) Term SOFR (as defined in the term loan agreement), which includes an adjustment of 0.10% per annum plus a margin of 1.0%, or (ii) the Alternate Base Rate (as defined in the term loan agreement). On June 28, 2024, Houston Electric borrowed $100 million and intends to use the proceeds thereof for working capital to support liquidity needs from the May 2024 Storm Events and for general limited liability company purposes.

Convertible Senior Notes. Interest on the Convertible Notes is payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2024. The Convertible Notes will mature on August 15, 2026, unless earlier converted or repurchased by CenterPoint Energy in accordance with their terms.

Prior to the close of business on the business day immediately preceding May 15, 2026, the Convertible Notes are convertible only under certain conditions. On or after May 15, 2026 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the Convertible Notes may convert all or any portion of their Convertible Notes at any time at the conversion rate then in effect, irrespective of the conditions. CenterPoint Energy may not redeem the Convertible Notes prior to the maturity date and no sinking fund is provided for the Convertible Notes.

Upon conversion of the Convertible Notes, CenterPoint Energy will pay cash up to the aggregate principal amount of the Convertible Notes to be converted and pay or deliver, as the case may be, cash, shares of Common Stock, or a combination of cash and shares of Common Stock, at CenterPoint Energy’s election, in respect of the remainder, if any, of CenterPoint Energy’s conversion obligation in excess of the aggregate principal amount of the Convertible Notes being converted. The conversion rate for the Convertible Notes is initially 27.1278 shares of Common Stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $36.86 per share of Common Stock). The initial conversion price of the Convertible Notes represents a premium of approximately 25.0% over the last reported sale price of the Common Stock on the NYSE on August 1, 2023. Initially, a maximum of 33,909,700 shares of Common Stock may be issued upon conversion of the Convertible Notes based on the initial maximum conversion rate of 33.9097 shares of Common Stock per $1,000 principal amount of Convertible Notes. The conversion rate will be subject to adjustment in some events (as described in the Convertible Notes Indenture) but will not be adjusted for any accrued and unpaid interest.

In addition, following certain corporate events that occur prior to the maturity date of the Convertible Notes, CenterPoint Energy will, in certain circumstances, increase the conversion rate for a holder of Convertible Notes who elects to convert its Convertible Notes in connection with such a corporate event. If CenterPoint Energy undergoes a fundamental change (as described in the Convertible Notes Indenture), holders of the Convertible Notes may require CenterPoint Energy to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

The Convertible Notes are senior unsecured obligations of CenterPoint Energy and rank senior in right of payment to any of CenterPoint Energy’s indebtedness that is expressly subordinated in right of payment to the Convertible Notes; equal in right of payment to any of CenterPoint Energy’s unsecured indebtedness that is not so subordinated; effectively junior in right of
payment to any of CenterPoint Energy’s secured indebtedness it may incur in the future to the extent of the value of the assets securing such future secured indebtedness; and structurally junior to all indebtedness and other liabilities (including trade payables but excluding intercompany obligations and liabilities of a type not required to be reflected on a balance sheet of such subsidiaries in accordance with generally accepted accounting principles) of CenterPoint Energy’s subsidiaries.

Debt Redemption. In March 2024, CenterPoint Energy, through its wholly-owned subsidiary SIGECO, redeemed $22 million aggregate principal amount of SIGECO’s outstanding 3.50% first mortgage bonds due 2024 at a redemption price equal to 100% of the principal amount of the first mortgage bonds to be redeemed plus accrued and unpaid interest thereon.

In May 2024, CenterPoint Energy redeemed $350 million aggregate principal amount of its outstanding floating rate senior notes due 2024 at a redemption price equal to 100% of the principal amount to be redeemed plus accrued and unpaid interest thereon.

Credit Facilities. The Registrants had the following revolving credit facilities as of June 30, 2024:

Execution
 Date 		RegistrantSize of
Facility		Draw Rate of SOFR plus (1)Financial Covenant Limit on Debt for Borrowed Money to Capital Ratio 
Debt for Borrowed Money to Capital
Ratio as of
June 30, 2024 (2)
Termination Date
(in millions)
December 6, 2022CenterPoint Energy $2,400 1.500%65.0%(3)59.1%December 6, 2027
December 6, 2022CenterPoint Energy (4)250 1.125%65.0%47.6%December 6, 2027
December 6, 2022Houston Electric300 1.250%67.5%(3)53.0%December 6, 2027
December 6, 2022CERC 1,050 1.125%65.0%38.5%December 6, 2027
Total$4,000 

(1)Based on credit ratings as of June 30, 2024.
(2)As defined in the revolving credit facility agreements, excluding Securitization Bonds.
(3)For CenterPoint Energy and Houston Electric, the financial covenant limit will temporarily increase to 70% if Houston Electric experiences damage from a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that Houston Electric has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive 12-month period, all or part of which Houston Electric intends to seek to recover through securitization financing. Such temporary increase in the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification or (iii) the revocation of such certification.
(4)This credit facility was issued by SIGECO.

The Registrants, as well as the subsidiaries of CenterPoint Energy discussed above, were in compliance with all financial debt covenants as of June 30, 2024.

The table below reflects the utilization of the Registrants’ respective revolving credit facilities:

June 30, 2024December 31, 2023
RegistrantLoansLetters
of Credit		Commercial
Paper (2)		Weighted Average Interest RateLoansLetters
of Credit		Commercial
Paper (2)		Weighted Average Interest Rate
(in millions, except weighted average interest rate)
CenterPoint Energy $— $— $897 5.47 %$— $— $1,036 5.54 %
CenterPoint Energy (1)— — — — %— — — — %
Houston Electric— — — — %— — — — %
CERC — 1 — — %— 1 484 5.53 %
Total$— $1 $897 $— $1 $1,520 

(1)This credit facility was issued by SIGECO.
(2)CenterPoint Energy’s and CERC’s outstanding commercial paper generally have maturities of up to 60 days and 30 days, respectively, and are backstopped by the respective issuer’s long-term revolving credit facility. Neither Houston Electric nor SIGECO has a commercial paper program.
Liens. As of June 30, 2024, Houston Electric’s assets were subject to liens securing approximately $8 billion of general mortgage bonds outstanding under the General Mortgage, including approximately $68 million held in trust to secure pollution control bonds that mature in 2028 for which CenterPoint Energy is obligated. The general mortgage bonds that are held in trust to secure pollution control bonds are not reflected in Houston Electric’s consolidated financial statements because of the contingent nature of the obligations. Houston Electric may issue additional general mortgage bonds on the basis of retired bonds, 70% of property additions or cash deposited with the trustee. Houston Electric could issue approximately $4.9 billion of additional general mortgage bonds on the basis of retired bonds and 70% of property additions as of June 30, 2024. No first mortgage bonds are outstanding under the M&DOT, and Houston Electric is contractually obligated to not issue any additional first mortgage bonds under the M&DOT and is undertaking actions to release the lien of the M&DOT and terminate the M&DOT.

As of June 30, 2024, SIGECO had approximately $825 million aggregate principal amount of first mortgage bonds outstanding. Generally, all of SIGECO’s real and tangible property is subject to the lien of SIGECO’s mortgage indenture which was amended and restated effective as of January 1, 2023. As of June 30, 2024, SIGECO was permitted to issue additional bonds under its mortgage indenture up to 70% of then currently unfunded property additions and approximately $926 million of additional first mortgage bonds could be issued on this basis.