# EDGAR Filing Document

**Accession Number:** 0000753308
**File Stem:** 0001123292-26-000357
**Filing Date:** 2026-3
**Character Count:** 11290
**Document Hash:** c2b5f9ee7a6880c66c36f97c42cfb625
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001123292-26-000357.hdr.sgml**: 20260310

**ACCESSION NUMBER**: 0001123292-26-000357

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260310

**DATE AS OF CHANGE**: 20260310

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OPAL Fuels Inc.
- **CENTRAL INDEX KEY:** 0001842279
- **STANDARD INDUSTRIAL CLASSIFICATION:** GAS & OTHER SERVICES COMBINED [4932]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92437
- **FILM NUMBER:** 26739217

**BUSINESS ADDRESS:**
- **STREET 1:** 200 CLARENDON STREET, 55TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 617-531-6300

**MAIL ADDRESS:**
- **STREET 1:** 200 CLARENDON STREET, 55TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ArcLight Clean Transition Corp. II
- **DATE OF NAME CHANGE:** 20210125
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NEXTERA ENERGY INC
- **CENTRAL INDEX KEY:** 0000753308
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 592449419
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 700 UNIVERSE BLVD
- **CITY:** JUNO BEACH
- **STATE:** FL
- **ZIP:** 33408
- **BUSINESS PHONE:** 561-694-4697

**MAIL ADDRESS:**
- **STREET 1:** P O BOX 14000
- **CITY:** JUNO BEACH
- **STATE:** FL
- **ZIP:** 33408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FPL GROUP INC
- **DATE OF NAME CHANGE:** 19920703

## Ex-1

#### JOINT FILING AGREEMENT
We, the signatories of the statement to which this Joint Filing Agreement is attached, hereby agree that such statement is filed, and any amendments thereto filed by any or all of us, will be filed, on behalf of each of us.

Date:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; March 10, 2026

---

| | |
|:---|:---|
| NEXTERA ENERGY, INC. | NEXTERA ENERGY, INC. |
| By: | /s/ Mark Hickson |
| <br> Name:<br>| <br> Mark Hickson<br>|
| Title: | <br> Executive Vice President, Corporate Development and Strategy<br>|

---

---

| | |
|:---|:---|
| MENDOCINO CAPITAL, LLC | MENDOCINO CAPITAL, LLC |
| By: | /s/ Mark Hickson |
| <br> Name:<br>| <br> Mark Hickson<br>|
| Title: | <br> President<br>|

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 3)**

**OPAL Fuels Inc.**

*(Name of Issuer)*

**Class A Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**68347P103**

*(CUSIP Number)*

**Charles E. Sieving, Esq., EVP**<br>NextEra Energy, Inc.<br>700 Universe Boulevard<br>Juno Beach FL 33408<br>561-694-4000

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**03/10/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **68347P103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**NEXTERA ENERGY INC** | Name of reporting person<br>**NEXTERA ENERGY INC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**FLORIDA** | Citizenship or place of organization<br>**FLORIDA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2158547.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2158547.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2158547.00** | Aggregate amount beneficially owned by each reporting person<br>**2158547.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**7.4%** | Percent of class represented by amount in Row (11)<br>**7.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**HC** | Type of Reporting Person (See Instructions)<br>**HC** | |

---

**Comment for Reporting Person:** Items 8, 10, 11: Reflects 2,158,547 shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), owned by Mendocino Capital, LLC, a wholly owned subsidiary of NextEra Energy, Inc., a publicly traded company with its common stock listed on the New York Stock Exchange under the symbol "NEE".

Item 13: The percentage used herein and in the rest of this Schedule 13D is calculated based upon 28,996,177 shares of the Issuer's Class A Common Stock outstanding as of November 7, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 7, 2025.

| **CUSIP No.** | **68347P103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Mendocino Capital, LLC** | Name of reporting person<br>**Mendocino Capital, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2158547.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2158547.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2158547.00** | Aggregate amount beneficially owned by each reporting person<br>**2158547.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**7.4%** | Percent of class represented by amount in Row (11)<br>**7.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** Items 8, 10, 11: Reflects 2,158,547 shares of Class A Common Stock owned by Mendocino Capital, LLC, a wholly owned subsidiary of NextEra Energy, Inc., a publicly traded company with its common stock listed on the New York Stock Exchange under the symbol "NEE".

Item 13: The percentage used herein and in the rest of this Schedule 13D is calculated based upon 28,996,177shares of the Issuer's Class A Common Stock outstanding as of November 7, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 7, 2025.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A Common Stock, par value $0.0001 per share

**(b) Name of Issuer:**
OPAL Fuels Inc.

**(c) Address of Issuer's Principal Executive Offices:**
700 Universe Boulevard, Juno Beach, FL, 33408

This Amendment No. 3 ("Amendment No. 3") to Schedule 13D relates to the Class A common stock, $0.0001 par value per share (the "Class A Common Stock"), of OPAL Fuels Inc. (the "Issuer"), and amends and supplements the initial statement on Schedule 13D originally filed with the Securities and Exchange Commission (the "SEC") by the Reporting Persons on August 1, 2022, as amended by Amendments No. 1 and No. 2 thereto on January 5, 2024 and December 3, 2025, respectively (as amended by such Amendments No. 1 and No. 2, the "Original Schedule 13D"). Capitalized terms used but not defined in this Amendment No. 3 shall have the same meanings ascribed to them in the Original Schedule 13D. This Amendment No. 3 is being filed solely to amend and restate Item 6 below to report the new information described therein.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The second paragraph of Item 6 of the Original Schedule 13D is hereby amended and restated as follows:

In addition to the 2,158,547 shares of Class A Common Stock that are described herein, the Reporting Persons were previously the beneficial owners of Series A Preferred Units of Opal Fuels LLC (the "Series A Preferred Units"), all of which were directly owned by Mendocino. Opal Fuels LLC is an entity that directly or indirectly holds substantially all of the consolidated assets and business of the Issuer. On December 3, 2025, Mendocino provided written notice to Opal Fuels LLC, pursuant and subject to Opal Fuels LLC's Series A Preferred Unit Certificate of Designations, that Mendocino requested redemption, no later than 90 days after the date of such notice, of all of the Series A Preferred Units. On March 6, 2026, Opal Fuels fully redeemed from Mendocino all of the Series A Preferred Units.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** NEXTERA ENERGY INC

**Signature:** /s/ Mark Hickson

**Name/Title:** Mark Hickson, Executive Vice President, Corporate Development and Strategy

**Date:** 03/10/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Mendocino Capital, LLC

**Signature:** /s/ Mark Hickson

**Name/Title:** Mark Hickson, President

**Date:** 03/10/2026