Twelfth Supplemental Indenture relating to the Bonds issued under the Mortgage and Deed of Trust of Entergy Louisiana, LLC, dated as of November 1, 2015

THIS TWELFTH SUPPLEMENTAL INDENTURE, dated as of March 1, 2020, between ENTERGY LOUISIANA, LLC, a limited liability company of the State of Texas whose post office address is 4809 Jefferson Highway, Jefferson, Louisiana 70121 (hereinafter sometimes called the “Company”), and THE BANK OF NEW YORK MELLON, a New York banking corporation whose principal corporate trust office is located at 240 Greenwich Street, New York, New York 10286 (hereinafter sometimes called the “Trustee”), as Trustee under the Mortgage and Deed of Trust, dated as of November 1, 2015 (hereinafter called the “Original Indenture”), this Indenture (hereinafter called this “Twelfth Supplemental Indenture”) being supplemental thereto. The Original Indenture and any and all indentures and instruments supplemental thereto are hereinafter sometime collectively called the “Indenture”. Subject to any amendments provided for in this Twelfth Supplemental Indenture, the terms defined in the Original Indenture shall, for all purposes of this Twelfth Supplemental Indenture, have the meanings specified in the Original Indenture.

WHEREAS, the Original Indenture was authorized, executed and delivered by the Company to provide for the issuance from time to time of its Securities (such term and all other capitalized terms used herein without definition having the meanings assigned to them in the Original Indenture), to be issued in one or more series as contemplated therein, and to provide security for the payment of the principal of and premium, if any, and interest, if any, on the Securities.

WHEREAS, the Original Indenture was recorded with the Secretary of State of Texas under File Number 15-0039013214, in the Parish of Orleans, Louisiana as Mortgage Instrument Number 1205822, and in various other Parishes in the State of Louisiana, which Parishes are the same Parishes in which this Twelfth Supplemental Indenture is to be recorded; and

WHEREAS, the Company executed and delivered the following supplemental indentures:

which supplemental indentures have been recorded with the Secretary of State of Texas and in various Parishes in the State of Louisiana; and

WHEREAS, the Company has heretofore issued, in accordance with the provisions of the Indenture, as supplemented, the following series of Securities:

WHEREAS, to subject certain property of the Company located in Union County, Arkansas to the Lien of the Indenture, the Company executed and delivered the Fourth Supplemental Indenture dated as of April 1, 2016 to the Original Indenture, and the Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth and Eleventh Supplemental Indentures have been recorded in Union County, Arkansas.

WHEREAS, Section 1302 of the Original Indenture provides, among other things, that with the consent of the Holders of a majority in aggregate principal amount of the Securities of all series now Outstanding under the Indenture, considered as one class, by Act of said Holders delivered to the Company and the Trustee, the Company, when authorized by a Board Resolution, and the Trustee may enter into one or more indentures supplemental thereto, in form satisfactory to the Trustee, for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, the Original Indenture; provided, however, that if there shall be Securities of more than one series Outstanding thereunder and if a proposed amendment shall directly affect the rights of the Holders of Securities of one or more, but less than all, of such series, then the consent of the Holders of only a majority in aggregate principal amount of the Outstanding Securities of all series so directly affected, considered as one class, shall be required;

WHEREAS, in Section 201 of the Eighth Supplemental Indenture to the Original Indenture dated as of May 1, 2017 (the “Eighth Supplemental Indenture”), providing for, among other things, the Collateral Trust Mortgage Bonds, 3.12% Series due September 1, 2027 (the “3.12% Bonds”), the Company reserved the right to amend Section 907 of the Original Indenture as set forth therein (the “Section 907 Amendment”), and pursuant to Section 202 of the Eighth Supplemental Indenture, each initial and future holder of 3.12% Bonds, by its acquisition of an interest in such bonds, irrevocably (a) consented to the Section 907 Amendment without any other or further action by any Holder of such 3.12% Bonds, and (b) designated the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of the Section 907 Amendment at any bondholder meeting, in any consent solicitation in lieu of any bondholder meeting, or otherwise.

WHEREAS, in Section 301 of the Ninth Supplemental Indenture to the Original Indenture dated as of March 1, 2018, providing for, among other things, the Collateral Trust Mortgage Bonds, 4.00% Series due March 15, 2033 (the “4.00% Bonds”), each initial and future holder of 4.00% Bonds, by its acquisition of an interest in such bonds, irrevocably (a) consented to the Section 907 Amendment without any other or

further action by any Holder of such 4.00% Bonds, and (b) designated the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of the Section 907 Amendment at any bondholder meeting, in any consent solicitation in lieu of any bondholder meeting, or otherwise.

WHEREAS, in Section 201 of the Tenth Supplemental Indenture to the Original Indenture dated as of August 1, 2018, providing for, among other things, the Collateral Trust Mortgage Bonds, 4.20% Series due September 1, 2048 (the “4.20% Bonds due 2048”), each initial and future holder of 4.20% Bonds due 2048, by its acquisition of an interest in such bonds, irrevocably (a) consented to the Section 907 Amendment without any other or further action by any Holder of such 4.20% Bonds due 2048, and (b) designated the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of the Section 907 Amendment at any bondholder meeting, in any consent solicitation in lieu of any bondholder meeting, or otherwise.

WHEREAS, in Section 201 of the Eleventh Supplemental Indenture to the Original Indenture dated as of March 1, 2019, providing for, among other things, the Collateral Trust Mortgage Bonds, 4.20% Series due March 1, 2050 (the “4.20% Bonds due 2050”), each initial and future holder of 4.20% Bonds due 2050, by its acquisition of an interest in such bonds, irrevocably (a) consented to the Section 907 Amendment without any other or further action by any Holder of such 4.20% Bonds due 2050, and (b) designated the Trustee, and its successors, as its proxy with irrevocable instructions to vote and deliver written consents on behalf of such Holder in favor of the Section 907 Amendment at any bondholder meeting, in any consent solicitation in lieu of any bondholder meeting, or otherwise.

WHEREAS, pursuant to the last paragraph of Section 1302 of the Indenture, (a) the Holders of the 3.12% Bonds, the 4.00% Bonds, the 4.20% Bonds due 2048 and the 4.20% Bonds due 2050 shall be deemed to have consented to the Section 907 Amendment, (b) no Act of such Holders shall be required to evidence such consent, and (c) such consent may be counted in the determination of whether or not the Holders of the requisite principal amount of Securities shall have consented to the Section 907 Amendment.

WHEREAS, the 3.12% Bonds, the 4.00% Bonds, the 4.20% Bonds due 2048 and the 4.20% Bonds due 2050 constitute a majority of the aggregate principal amount of all Securities now Outstanding.

WHEREAS, the Company has duly authorized the execution and delivery of this Twelfth Supplemental Indenture, and has duly authorized the Section 907 Amendment.

WHEREAS, as contemplated by Section 301 of the Original Indenture, the Company wishes to establish the designation and certain terms of the Securities of the Twelfth Series.

WHEREAS, the Company has duly authorized the execution and delivery of this Twelfth Supplemental Indenture to establish the designation and certain terms of the Securities of the Twelfth Series and has duly authorized the issuance of such Securities and the Section 907 Amendment; and all acts necessary to make this Twelfth Supplemental Indenture a valid agreement of the Company, and to make the Securities of the Twelfth Series valid obligations of the Company, have been performed.

NOW, THEREFORE, THIS TWELFTH SUPPLEMENTAL INDENTURE WITNESSETH, that, in consideration of the premises and of the purchase of the Securities by the Holders thereof, and in order to secure the payment of the principal of and premium, if any, and interest, if any, on the Securities from time to time Outstanding and the performance of the covenants therein and herein contained, and to

declare the terms and conditions on which such Securities are secured, the Company hereby grants, bargains, sells, conveys, assigns, transfers, mortgages, pledges, sets over and confirms to the Trustee, in trust, and grants to the Trustee a security interest in and lien on, the following (subject, however, to the terms and conditions set forth in this Twelfth Supplemental Indenture):

All right, title and interest of the Company, as of the Execution Date, or thereafter acquired, in and to all of the Company’s tangible electric and gas utility property located in the State of Louisiana (other than Excepted Property), whether real, personal or mixed, together with the Company’s franchises, permits and licenses that are transferable and necessary for the operation of such property and all easements and rights of way with respect to which the ownership interests of the Company have been recorded in the appropriate public records in the State of Louisiana;

All of the Company’s right, title, interest, as of March 1, 2016, or thereafter acquired, in and to all equipment and fixtures (other than Excepted Property) located on the Union Property (as such term is defined in the Fourth Supplemental Indenture to the Original Indenture), together with the Company’s franchises, permits and licenses that are transferable and necessary for the operation of such property and all easements and rights of way of the Company relating to such property with respect to which the ownership interests of the Company have been recorded in the appropriate public records in the State of Arkansas;

Any Excepted Property, which may, from time to time after the Execution Date, by delivery or by an instrument supplemental to the Indenture, be subjected to the Lien hereof by the Company, the Trustee being hereby authorized to receive the same at any time as additional security hereunder; it being understood that any such subjection to the Lien hereof of any Excepted Property as additional security may be made subject to such reservations, limitations or conditions respecting the use and disposition of such property or the proceeds thereof as shall be set forth in such instrument;

Expressly excepting and excluding, however, from the Lien of the Indenture all right, title and interest of the Company in and to the Excepted Property.

TO HAVE AND TO HOLD all such property, real, personal and mixed, unto the Trustee, its successors in trust and their assigns forever;

SUBJECT, HOWEVER, to Permitted Liens; and

SUBJECT, FURTHER, to the condition that, with respect to any property which is now or hereafter becomes subject to the Lien of any Class A Mortgage, the Lien of the Indenture shall at all times be junior, subject and subordinate to the Lien of such Class A Mortgage;

IN TRUST, NEVERTHELESS, for the equal and ratable benefit and security of the Holders from time to time of all Outstanding Securities without any priority of any such Security over any other such Security;

PROVIDED, HOWEVER, that the right, title and interest of the Trustee in and to the Mortgaged Property shall cease, terminate and become void in accordance with, and subject to the conditions set forth in, Article Eight of the Indenture, and if the principal of and premium, if any, and interest, if any, on the Securities shall have been paid to the Holders thereof, or shall have been paid to the Company pursuant to Section 703 of the Indenture or to the appropriate Governmental Authority pursuant to applicable law after the Maturity thereof, then and in that case the Indenture shall terminate, and the Trustee shall execute and deliver to the Company such instruments as the Company shall reasonably require to evidence such termination; otherwise the Indenture, and the estate and rights thereby granted, shall be and remain in full force and effect; and

IT IS HEREBY COVENANTED AND AGREED by and between the Company and the Trustee that all the Securities are to be authenticated and delivered, and that the Mortgaged Property is to be held, subject to the further covenants, conditions and trusts hereinafter set forth, and the Company hereby covenants and agrees to and with the Trustee, for the equal and ratable benefit of all holders of the Securities, as follows:

SECTION 101. The Securities of the Twelfth Series shall be designated “Collateral Trust Mortgage Bonds, 2.90% Series due March 15, 2051”, shall be initially issued in the aggregate principal amount (except as contemplated by Section 301(b) of the Original Indenture) of $350,000,000, and shall have such forms and terms as are established for such Securities of the Twelfth Series in an Officer's Certificate of the Company pursuant to this Twelfth Supplemental Indenture, as contemplated by Sections 201 and 301 of the Original Indenture.

SECTION 102. Trustee to Hold Class A Bonds In New York. So long as any Securities of the Twelfth Series remain Outstanding, the Trustee shall hold in the State of New York all Class A Bonds delivered to and to be held by it pursuant to Sections 1602 and 1701 of the Original Indenture; provided that the Trustee may hold such Class A Bonds in another jurisdiction if it receives an opinion of counsel to the effect that the perfection and priority of the security interest, if any, created by the last sentence of such Section 1701 will continue in such other jurisdiction.

SECTION 201. The holders of a majority in principal amount of the Securities Outstanding under the Indenture having consented to the amendment set forth in Section 201 of the Eighth Supplemental Indenture, the Company hereby exercises its right to amend Section 907 of the Original Indenture, effective as of March 1, 2020, as follows:

(a) to change the words “this Indenture” wherever they appear in the first sentence of Section 907 of the Original Indenture to “this Indenture or the Securities” and (b) to change the word “hereunder” in the first sentence of Section 907 of the Original Indenture to “under or with respect to this Indenture or the Securities.”

SECTION 301. This Twelfth Supplemental Indenture is a supplement to the Original Indenture. As supplemented by this Twelfth Supplemental Indenture, the Indenture is in all respects ratified, approved and confirmed.

SECTION 302. The recitals contained in this Twelfth Supplemental Indenture shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness and makes no representations as to the validity or sufficiency of this Twelfth Supplemental Indenture.

SECTION 303. Nothing in this Twelfth Supplemental Indenture, expressed or implied, is intended, or shall be construed, to confer upon, or give to, any person, firm or corporation, other than the parties hereto and the Holders of the Securities Outstanding under the Indenture, any right, remedy or claim under or by reason of this Twelfth Supplemental Indenture or any covenant, condition, stipulation, promise or agreement hereof, and all the covenants, conditions, stipulations, promises and agreements in this Twelfth Supplemental Indenture contained by or on behalf of the Company shall be for the sole and exclusive benefit of the parties hereto, and of the Holders of the Securities Outstanding under the Indenture.

This instrument may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument.

IN WITNESS WHEREOF, ENTERGY LOUISIANA, LLC has caused its company name to be hereunto affixed, and this instrument to be signed and sealed by its President, one of its Vice Presidents, its Treasurer or one of its Assistant Treasurers, and its company seal to be attested by its Secretary or one of its Assistant Secretaries, for and in its behalf, and THE BANK OF NEW YORK MELLON, in token of its acceptance of the trust hereby created, has caused its corporate name to be hereunto affixed, and this instrument to be signed and sealed by one of its Vice Presidents, Senior Associates or Associates and its corporate seal to be attested by one of its Vice Presidents, Senior Associates or Associates, all as of the day and year first above written.

On this 4th day of March, 2020, before me appeared KEVIN J. MARINO, to me personally known, who, being by me duly sworn, did say that he is an Assistant Treasurer of ENTERGY LOUISIANA, LLC, and that the seal affixed to the above instrument is the seal of said entity and that said instrument was signed and sealed in behalf of said entity by authority of its Board of Directors, and said KEVIN J. MARINO, acknowledged said instrument to be the free act and deed of said entity.

On this 4th day of March, 2020, before me personally came KEVIN J. MARINO, to me known, who, being by me duly sworn, did depose and say that he is an Assistant Treasurer of ENTERGY LOUISIANA, LLC, one of the entities described in and which executed the above instrument; that he knows the seal of said entity; that the seal affixed to said instrument is such seal, that it was so affixed by order of the Board of Directors of said entity, and that he signed his name thereto by like order.

On this 3rd day of March, 2020, before me appeared Laurence J. O’Brien, to me personally known or proved to me on the basis of satisfactory evidence and, who, being by me duly sworn, did say that he is a Vice President of THE BANK OF NEW YORK MELLON, and that the seal affixed to the above instrument is the corporate seal of said entity and that said instrument was signed and sealed in behalf of said entity by authority of its Board of Directors, and said Vice President acknowledged said instrument to be the free act and deed of said entity.

On this 3rd day of March, 2020, before me personally came Wanda Camacho, to me known or proved to me on the basis of satisfactory evidence and, who, being by me duly sworn, did depose and say that she is a Vice President of THE BANK OF NEW YORK MELLON, one of the entities described in and which executed the above instrument; that he knows the seal of said entity; that the seal affixed to said instrument is such seal, that it was so affixed by order of the Board of Directors of said entity, and that she signed her name thereto by like order.