Form 8-K

8-K — Constellation Energy Corp

Accession: 0001868275-26-000063

Filed: 2026-05-11

Period: 2026-05-11

CIK: 0001868275

SIC: 4911 (ELECTRIC SERVICES)

Item: Results of Operations and Financial Condition

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — ceg-20260511.htm (Primary)

EX-99.1 (ceg-20260511991.htm)

EX-99.2 (ceg-20260511992.htm)

GRAPHIC (ceg-20260511992001.jpg)

GRAPHIC (ceg-20260511992002.jpg)

GRAPHIC (ceg-20260511992003.jpg)

GRAPHIC (ceg-20260511992004.jpg)

GRAPHIC (ceg-20260511992005.jpg)

GRAPHIC (ceg-20260511992006.jpg)

GRAPHIC (ceg-20260511992007.jpg)

GRAPHIC (ceg-20260511992008.jpg)

GRAPHIC (ceg-20260511992009.jpg)

GRAPHIC (ceg-20260511992010.jpg)

GRAPHIC (ceg-20260511992011.jpg)

GRAPHIC (ceg-20260511992012.jpg)

GRAPHIC (ceg-20260511992013.jpg)

GRAPHIC (ceg-20260511992014.jpg)

GRAPHIC (ceg-20260511992015.jpg)

GRAPHIC (ceg-20260511992016.jpg)

GRAPHIC (ceg-20260511992017.jpg)

GRAPHIC (ceg-20260511992018.jpg)

GRAPHIC (ceg-20260511992019.jpg)

GRAPHIC (ceg-20260511992020.jpg)

GRAPHIC (ceg-20260511992021.jpg)

GRAPHIC (ceg-20260511992022.jpg)

GRAPHIC (ceg-20260511992023.jpg)

GRAPHIC (ceg-20260511992024.jpg)

GRAPHIC (ceg-20260511992025.jpg)

GRAPHIC (ceg-20260511992026.jpg)

GRAPHIC (ceg-20260511992027.jpg)

GRAPHIC (ceg-20260511992028.jpg)

GRAPHIC (ceg-20260511992029.jpg)

GRAPHIC (ceg-20260511992030.jpg)

GRAPHIC (ceg-20260511992031.jpg)

GRAPHIC (ceg-20260511992032.jpg)

GRAPHIC (constellationlogoa.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: ceg-20260511.htm · Sequence: 1

ceg-20260511

Pennsylvania1310 Point StreetBaltimoreMaryland21231-3380(833)883-0162Pennsylvania200 Energy WayKennett SquarePennsylvania19348-2473(833)883-0162Common Stock, without par valueCEGThe Nasdaq Stock Market LLC00018682750001168165False☐00018682752026-05-112026-05-110001868275ceg:ConstellationEnergyGenerationLLCMember2026-05-112026-05-11

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

May 11, 2026

Date of Report (Date of earliest event reported)

Commission

File Number Name of Registrant; State or Other Jurisdiction of Incorporation; Address of Principal Executive Offices; and Telephone Number IRS Employer Identification Number

001-41137 CONSTELLATION ENERGY CORPORATION 87-1210716

(a Pennsylvania corporation)

1310 Point Street

Baltimore, Maryland 21231-3380

(833) 883-0162

333-85496 CONSTELLATION ENERGY GENERATION, LLC 23-3064219

(a Pennsylvania limited liability company)

200 Energy Way

Kennett Square, Pennsylvania 19348-2473

(833) 883-0162

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

CONSTELLATION ENERGY CORPORATION:

Common Stock, without par value

CEG

The Nasdaq Stock Market LLC

Indicate by check mark whether any of the registrants are emerging growth companies as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if any of the registrants have elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Section 2 - Financial Information

Item 2.02. Results of Operations and Financial Condition

Section 7 - Regulation FD

Item 7.01. Regulation FD Disclosure

On May 11, 2026, Constellation Energy Corporation (Nasdaq: CEG) announced via press release its results for the first quarter ended March 31, 2026. A copy of the press release and related attachments are attached hereto as Exhibit 99.1. Also attached as Exhibit 99.2 to this Current Report on Form 8-K are the presentation slides to be used during the first quarter 2026 earnings conference call. This Form 8-K and the attached exhibits are provided under Items 2.02, 7.01 and 9.01 of Form 8-K and are furnished to, but not filed with, the Securities and Exchange Commission.

We have scheduled the conference call for 10:00 AM ET on May 11, 2026. To access the call by phone, please follow the registration link available on the Investor Relations page of our website: https://investors.constellationenergy.com. The call will also be webcast and archived on the Investor Relations page of our website. Media representatives are invited to participate on a listen-only basis.

Section 9 - Financial Statements and Exhibits

Item 9.01. Financial Statements and Exhibits

(d)    Exhibits.

Exhibit No. Description

99.1

Press release and earnings release attachments

99.2

Earnings conference call presentation slides

101 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

104 The cover page from the Current Report on Form 8-K, formatted as Inline XBRL.

* * * * *

This combined Current Report on Form 8-K is being furnished separately by Constellation Energy Corporation and Constellation Energy Generation, LLC, (collectively, the Registrants). Information contained herein relating to one of the Registrants has been furnished by the Registrant on its own behalf. Neither Registrant makes any representation as to information relating to the other Registrant.

This report contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic, and financial performance, are intended to identify such forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the acquisition of Calpine Corporation, the pro forma combined company and its operations, strategies and plans, enhancements to investment-grade credit profile, synergies, opportunities and anticipated future performance and capital structure, and expected accretion to earnings per share and free cash flow. Information adjusted for the acquisition should not be considered a forecast of future results.

Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. The factors that could cause actual results to differ materially from the forward-looking statements made by the Registrants include those factors discussed herein, as well as the items discussed in (1) the Registrants' combined 2025 Annual Report on Form 10-K in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 18 — Commitments and Contingencies; (2) the Registrants' First Quarter 2026 Quarterly Report on Form 10-Q (to be filed on May 11, 2026) in (a) Part II, ITEM 1A. Risk Factors, (b) Part I, ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part I, ITEM 1. Financial Statements: Note 15 — Commitments and Contingencies; and (3) other factors discussed in filings with the SEC by the Registrants.

Investors are cautioned not to place undue reliance on these forward-looking statements, whether written or oral, which apply only as of the date of this report. Neither Registrant undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this report.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CONSTELLATION ENERGY CORPORATION

/s/ Shane P. Smith

Shane P. Smith

Executive Vice President and Chief Financial Officer

Constellation Energy Corporation

CONSTELLATION ENERGY GENERATION, LLC

/s/ Shane P. Smith

Shane P. Smith

Executive Vice President and Chief Financial Officer

Constellation Energy Generation, LLC

May 11, 2026

EXHIBIT INDEX

Exhibit No. Description

99.1

Press release and earnings release attachments

99.2

Earnings conference call presentation slides

101 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

104 The cover page from the Current Report on Form 8-K, formatted as Inline XBRL.

EX-99.1

EX-99.1

Filename: ceg-20260511991.htm · Sequence: 2

Document

Exhibit 99.1

News Release

Contact:

Linsey Wisniewski

Corporate Communications

667-218-7700

Tim Flottemesch

Investor Relations

833-447-2783

CONSTELLATION REPORTS FIRST QUARTER 2026 RESULTS

Earnings Release Highlights

•GAAP Net Income of $4.49 per share and Adjusted (non-GAAP) Operating Earnings of $2.74 per share for the first quarter of 2026

•Affirming full year 2026 Adjusted Operating Earnings guidance of $11.00 - $12.00 per share

•Commissioning of 105 megawatt (MW) Pastoria Solar Project

•460 MW Pin Oak Creek Energy Center achieves commercial operation

•Net metering application for co-location of a data center at our Freestone site approved

•Ranked #1 on Barron's Most Sustainable U.S. Companies for 2026

•Our employees demonstrated their commitment to our communities by volunteering at over 150 events across 15 states and Washington, D.C. during April 2026, in honor of National Volunteer Month

Baltimore (May 11, 2026) — Constellation Energy Corporation (Nasdaq: CEG) today reported its financial results for the first quarter of 2026.

“America needs reliable, clean power and Constellation is built to meet this demand with the strength of our fleet and the solutions we’re delivering for customers,” said Joe Dominguez, president and CEO of Constellation. “Right now, our focus is on execution – operating at a high level, integrating two great companies, bringing new resources to market, and navigating a changing regulatory environment – led by the women and men who power our business every day.”

“Our first-quarter results reflect continued operational excellence from our entire organization,” said Shane Smith, executive vice president and chief financial officer of Constellation. “We are affirming our full-year guidance and the expectation of strong, visible cash flow that supports our strategic capital allocation framework.”

1

First Quarter 2026

Our GAAP Net Income for the first quarter of 2026 increased to $4.49 per share from $0.38 per share in the first quarter of 2025. Adjusted (non-GAAP) Operating Earnings for the first quarter of 2026 increased to $2.74 per share from $2.14 per share in the first quarter of 2025. For the reconciliations of GAAP Net Income (Loss) to Adjusted (non-GAAP) Operating Earnings, refer to the GAAP/Adjusted (non-GAAP) Operating Earnings Reconciliation section below.

Adjusted (non-GAAP) Operating Earnings in the first quarter of 2026 primarily reflects:

•The addition of Calpine, favorable stock-based compensation, nuclear PTC portfolio and market and portfolio conditions, partially offset by unfavorable nuclear outages

Recent Developments and First Quarter Highlights

•Pastoria Solar Project Comes Online: On April 16, 2026 we celebrated the commissioning of the 105 MW Pastoria Solar Project, the largest renewable energy project contracted by the California Department of Water Resources (DWR) to date in its mission to fully decarbonize its operations by 2035. The Pastoria Solar Project connects to the grid through the interconnection facilities at the highly efficient 750 MW natural gas-fired combined-cycle generating facility. Also, co-located with the Pastoria Solar Project is the 80 MW/320 MWh Battery Energy Storage System, which will be coming online during the spring/summer of 2026. The Pastoria Power Bank is contracted and supported by a 15-year power purchase agreement with Pacific Gas and Electric Company.

•Pin Oak Creek Energy Center Reaches Commercial Operation: On April 30, 2026, our Pin Oak Creek Energy Center achieved commercial operation. Pin Oak is a 460 MW, state-of-the-art natural gas facility designed to provide reliable, dispatchable power to the ERCOT grid. As a peaking facility, it is built to operate when demand is highest and reliability matters most, while also maintaining the flexibility to run longer if system conditions require it. The project is a direct response to Texas’ continued growth and increasing electricity demand across homes, businesses, and industry. Pin Oak Creek will play a critical role in strengthening grid reliability and supporting the state’s economic momentum.

•Freestone Net Metering Application Approved: The PUCT has approved the net metering application for the co-location of a Cyrus One data center at our Freestone site, subject to conditions. In February we signed a 380 MW agreement with Dallas-based CyrusOne, a leading global data center developer and operator, to connect and serve a new data center adjacent to the Freestone Energy Center, in Freestone County, Texas. We also entered into an exclusive agreement to provide power, grid connectivity and site infrastructure for Phase 2, which will be an additional 380 MW.

•Ranked #1 on Barron's Most Sustainable U.S. Companies for 2026: We earned the No. 1 spot on Barron’s annual "Most Sustainable U.S. Companies" rankings, which evaluate the country's 1,000 largest publicly traded companies on 230 performance indicators including environmental impact, workforce development and community support.

2

•Nuclear Operations: Our nuclear fleet, including our owned output from the Salem and South Texas Project (STP) Generating Stations, produced 44,666 gigawatt-hours (GWhs) in the first quarter of 2026, compared with 45,582 GWhs in the first quarter of 2025. Excluding Salem and STP, our nuclear plants at ownership achieved a 92.3% capacity factor for the first quarter of 2026, compared with 94.1% for the first quarter of 2025. There were 99 planned refueling outage days in the first quarter of 2026 and 88 in the first quarter of 2025 for sites we operate. There were no non-refueling outage days in the first quarter of 2026 and 2025 for sites we operate.

•Natural Gas, Oil, and Renewables Operations: As a result of our expanded fleet following the acquisition of Calpine in January 2026, we now consider Equivalent Forced Outage Factor (EFOF) to be a key operational metric beginning in 2026. EFOF represents the percentage for which a generating unit is not available due to forced outages and forced deratings in a given period. The EFOF of our natural gas, oil, and pumped-storage hydro fleet for the first quarter of 2026 is 4.5%. Renewable energy capture for our wind, solar and run-of-river hydro fleet was 96.7% in the first quarter of 2026, compared with 96.2% in the first quarter of 2025.

3

GAAP/Adjusted (non-GAAP) Operating Earnings Reconciliation

The table below provides a reconciliation of GAAP Net Income to Adjusted (non-GAAP) Operating Earnings. Adjusted (non-GAAP) Operating Earnings is not a standardized financial measure and may not be comparable to other companies’ presentations of similarly titled measures.

Unless otherwise noted, the income tax impact of each reconciling adjustment between GAAP Net Income (Loss) Attributable to Common Shareholders and Adjusted (non-GAAP) Operating Earnings is based on the marginal statutory federal and state income tax rates, taking into account whether the income or expense item is taxable or deductible, respectively, in whole or in part, which may result in an effective tax rate that differs from the marginal rate. The marginal statutory income tax rate was 25.5% for the three months ended March 31, 2026 and 2025. The following table provides a reconciliation between GAAP Net Income (Loss) Attributable to Common Shareholders and Adjusted (non-GAAP) Operating Earnings for the three months ended March 31, 2026 compared to the same period in 2025.

Three Months Ended March 31,

2026 2025

(In millions, except per share data)

Earnings

Per Share(a)

Earnings

Per Share(a)

GAAP Net Income (Loss) Attributable to Common Shareholders $ 1,590  $ 4.49  $ 118  $ 0.38

Unrealized (Gain) Loss on Fair Value Adjustments (net of taxes of $247 and $169, respectively)(b)

(721) (2.03) 505  1.61

Decommissioning-Related Activities (net of taxes of $79 and $31, respectively)(c)

(174) (0.49) 19  0.06

Amortization of Acquired Commodity Contracts (net of taxes of $53 and $—, respectively)(d)

154  0.44  —  —

Calpine Merger and Integration Costs (net of taxes of $22 and $4, respectively)(e)

119  0.34  13  0.04

Plant Retirements and Divestitures (net of taxes of $— and $4, respectively)

—  —  11  0.03

Pension & OPEB Non-Service (Credits) Costs (net of taxes of $7 and $3, respectively)

20  0.06  9  0.03

Income Tax-Related Adjustments

(13) (0.04) —  —

Noncontrolling Interests(f)

(3) (0.01) (2) (0.01)

Adjusted (non-GAAP) Operating Earnings $ 972  $ 2.74  $ 673  $ 2.14

_______

(a)Amounts may not sum due to rounding. Earnings per share amount is based on average diluted common shares outstanding of 354 million and 314 million for the three months ended March 31, 2026 and 2025, respectively.

(b)Includes unrealized gains and losses on economic hedges, interest rate swaps, and fair value adjustments related to gas imbalances and equity investments.

(c)Reflects all gains and losses associated with NDTs, ARO accretion, ARC depreciation, ARO remeasurement, and impacts of contractual offset for Regulatory Agreement Units. The tax effects of Regulatory Agreement Units result in a 100% effective tax rate under contractual offset accounting. Additionally, the tax effects of NDT investment returns result in different effective tax rates depending on whether the underlying funds are held within qualified or non-qualified trusts.

(d)In 2026, reflects the non-cash impacts of the amortization of certain commodity contracts recorded at fair value associated with the Calpine acquisition.

(e)Reflects costs associated with the completion of the Calpine merger and subsequent integration of its operations. Certain of these transaction-related expenses are not tax deductible.

(f)Represents elimination of the noncontrolling interest portion of certain adjustments included above.

Webcast Information

We will discuss first quarter 2026 earnings in a conference call scheduled for today at 10:00 a.m. Eastern Time. The webcast and associated materials can be accessed at https://investors.constellationenergy.com.

4

About Constellation

Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the largest private-sector power producer in the world and the nation’s largest producer of clean and reliable energy. With 55 gigawatts of capacity from nuclear, natural gas, oil, geothermal, hydro, wind and solar facilities, our fleet has the generating capacity to power the equivalent of 27 million homes, providing about 10% of the nation’s clean energy and delivering the around-the-clock reliability needed to power America’s growing economy. We are also the largest nuclear energy company in the U.S. and a leading competitive retail supplier, serving approximately 2.5 million customer accounts nationwide, including 80% of the Fortune 100. We are committed to investing in innovation and new technologies to drive the transition to a reliable, sustainable and secure energy future. Follow Constellation on LinkedIn and X.

Non-GAAP Financial Measures

We utilize Adjusted (non-GAAP) Operating Earnings (and/or its per share equivalent) in our internal analysis, and in communications with investors and analysts, as a consistent measure for comparing our financial performance and discussing the factors and trends affecting our business. The presentation of Adjusted (non-GAAP) Operating Earnings is intended to complement and should not be considered an alternative to, nor more useful than, the presentation of GAAP Net Income (Loss).

The tables above provide a reconciliation of GAAP Net Income (Loss) to Adjusted (non-GAAP) Operating Earnings. Adjusted (non-GAAP) Operating Earnings is not a standardized financial measure and may not be comparable to other companies’ presentations of similarly titled measures.

Due to the forward-looking nature of our Adjusted (non-GAAP) Operating Earnings guidance, we are unable to reconcile this non-GAAP financial measure to GAAP Net Income (Loss) given the inherent uncertainty required in projecting gains and losses associated with the various fair value adjustments required by GAAP. These adjustments include future changes in fair value impacting the derivative instruments utilized in our current business operations, as well as the debt and equity securities held within our nuclear decommissioning trusts, which may have a material impact on our future GAAP results.

Cautionary Statements Regarding Forward-Looking Information

This press release contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic, and financial performance, are intended to identify such forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the acquisition of Calpine Corporation, the pro forma combined company and its operations, strategies and plans, enhancements to investment-grade credit profile, synergies, opportunities and anticipated future performance and capital structure, and expected accretion to earnings per share and free cash flow. Information adjusted for the acquisition should not be considered a forecast of future results.

Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. The factors that could cause actual results to differ materially from the forward-looking statements made by Constellation Energy Corporation and Constellation Energy Generation, LLC, (the Registrants) include those factors discussed herein, as well as the items discussed in (1) the Registrants' 2025 Annual Report on Form 10-K in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and

5

Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 18 — Commitments and Contingencies; (2) the Registrants' First Quarter 2026 Quarterly Report on Form 10-Q (to be filed on May 11, 2026) in (a) Part II, ITEM 1A. Risk Factors, (b) Part I, ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part I, ITEM 1. Financial Statements: Note 15 — Commitments and Contingencies; and (3) other factors discussed in filings with the SEC by the Registrants.

Investors are cautioned not to place undue reliance on these forward-looking statements, whether written or oral, which apply only as of the date of this press release. Neither Registrant undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this press release.

6

Table of Contents

Earnings Release Attachments

Table of Contents

Consolidated Statements of Operations

1

Consolidated Balance Sheets

2

Consolidated Statements of Cash Flows

3

GAAP Consolidated Statements of Operations and Adjusted (non-GAAP) Operating Earnings Reconciling Adjustments

4

Statistics

5

Table of Contents

Constellation Energy Corporation and Subsidiary Companies

Consolidated Statements of Operations

(unaudited)

(in millions)

Three Months Ended March 31, 2026

Operating revenues $ 11,122

Operating expenses

Purchased power and fuel 6,352

Operating and maintenance 1,780

Depreciation and amortization 443

Taxes other than income taxes 229

Total operating expenses 8,804

Gain (loss) on sales of assets

14

Operating income (loss)

2,332

Other income and (deductions)

Interest expense, net (253)

Other, net 46

Total other income and (deductions) (207)

Income (loss) before income taxes

2,125

Income tax (benefit) expense

530

Equity in income (losses) of unconsolidated affiliates

8

Net income (loss)

1,603

Net income (loss) attributable to noncontrolling interests

13

Net income (loss) attributable to common shareholders

$ 1,590

Three Months Ended March 31, 2025

Operating revenues $ 6,788

Operating expenses

Purchased power and fuel 4,384

Operating and maintenance 1,545

Depreciation and amortization 248

Taxes other than income taxes 160

Total operating expenses 6,337

Operating income (loss)

451

Other income and (deductions)

Interest expense, net (146)

Other, net (154)

Total other income and (deductions) (300)

Income (loss) before income taxes

151

Income tax (benefit) expense

22

Net income (loss)

129

Net income (loss) attributable to noncontrolling interests

11

Net income (loss) attributable to common shareholders

$ 118

Change in Net income (loss) attributable to common shareholders from 2025 to 2026 $ 1,472

1

Table of Contents

Constellation Energy Corporation and Subsidiary Companies

Consolidated Balance Sheets

(unaudited)

(in millions)

March 31, 2026 December 31, 2025

Assets

Current assets

Cash and cash equivalents $ 800  $ 3,641

Restricted cash and cash equivalents 371  107

Accounts receivable 4,414  4,266

Derivative assets

1,795  945

Inventories, net 2,582  1,736

Renewable energy credits 1,038  789

Assets held for sale 5,735  126

Other 1,274  509

Total current assets 18,009  12,119

Property, plant, and equipment, net 40,769  22,474

Deferred debits and other assets

Nuclear decommissioning trust funds 19,366  19,336

Goodwill 11,527  420

Derivative assets

2,113  450

Other 5,127  2,450

Total deferred debits and other assets 38,133  22,656

Total assets $ 96,911  $ 57,249

Liabilities and shareholders’ equity

Current liabilities

Short-term borrowings $ 5,102  $ 1,650

Long-term debt due within one year 370  92

Accounts payable and accrued expenses

4,449  4,294

Derivative liabilities

810  467

Renewable energy credit obligation 1,193  1,075

Other 1,291  366

Total current liabilities 13,215  7,944

Long-term debt 16,994  7,250

Deferred credits and other liabilities

Deferred income taxes and unamortized ITCs

8,199  3,544

Asset retirement obligations 12,433  13,193

Pension and non-pension postretirement benefit obligations

1,835  1,977

Payable related to Regulatory Agreement Units 5,389  5,334

Derivative liabilities

518  414

Other 4,508  2,740

Total deferred credits and other liabilities 32,882  27,202

Total liabilities 63,091  42,396

Commitments and contingencies

Shareholders’ equity

Common stock 28,574  11,043

Retained earnings (deficit) 7,334  5,899

Accumulated other comprehensive income (loss), net

(2,425) (2,425)

Total shareholders’ equity 33,483  14,517

Noncontrolling interests 337  336

Total equity 33,820  14,853

Total liabilities and shareholders’ equity $ 96,911  $ 57,249

2

Table of Contents

Constellation Energy Corporation and Subsidiary Companies

Consolidated Statements of Cash Flows

(unaudited)

(in millions)

Three Months Ended March 31,

2026 2025

Cash flows from operating activities

Net income (loss) $ 1,603  $ 129

Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities

Depreciation, amortization, and accretion, including nuclear fuel and contract amortization 1,202  640

Deferred income taxes and amortization of ITCs 440  (98)

Net fair value changes related to derivatives (1,040) 356

Net realized and unrealized (gains) losses on NDT funds (17) (44)

Net realized and unrealized (gains) losses on equity investments 27  268

Other non-cash operating activities (199) 47

Changes in assets and liabilities:

Accounts receivable 323  (15)

Inventories 106  98

Accounts payable and accrued expenses (1,377) (290)

Option premiums received (paid), net (15) 26

Collateral received (posted), net 249  (486)

Income taxes 103  120

Pension and non-pension postretirement benefit contributions (191) (174)

Other assets and liabilities (789) (470)

Net cash flows provided by (used in) operating activities 425  107

Cash flows from investing activities

Capital expenditures (1,275) (806)

Proceeds from NDT fund sales 2,504  2,084

Investment in NDT funds (2,572) (2,152)

Acquisition of Calpine, net of cash and restricted cash acquired (2,537) —

Other investing activities 148  (12)

Net cash flows provided by (used in) investing activities (3,732) (886)

Cash flows from financing activities

Change in short-term borrowings 1,957  —

Proceeds from short-term borrowings with maturities greater than 90 days 3,000  —

Repayments of short-term borrowings with maturities greater than 90 days (1,500) —

Issuance of long-term debt 2,770  —

Retirement of long-term debt (5,254) (57)

Dividends paid on common stock (155) (122)

Other financing activities (88) (229)

Net cash flows provided by (used in) financing activities 730  (408)

Increase (decrease) in cash, restricted cash, and cash equivalents (2,577) (1,187)

Cash, restricted cash, and cash equivalents at beginning of period 3,748  3,129

Cash, restricted cash, and cash equivalents at end of period $ 1,171  $ 1,942

3

Table of Contents

Constellation Energy Corporation

GAAP Consolidated Statements of Operations and

Adjusted (non-GAAP) Operating Earnings Reconciling Adjustments

(unaudited)

(in millions, except per share data)

Three Months Ended March 31, 2026 Three Months Ended March 31, 2025

GAAP (a)

Non-GAAP Adjustments

GAAP (a)

Non-GAAP Adjustments

Operating revenues $ 11,122  $ (1,111)

(b),(c),(d)

$ 6,788  $ 286  (b),(c)

Operating expenses

Purchased power and fuel 6,352  (302)

(b),(d)

4,384  (84) (b)

Operating and maintenance 1,780  69

(c),(e)

1,545  (78)

(c),(e)

Depreciation and amortization 443  (19)

(c),(e)

248  (37)

(c),(g)

Taxes other than income taxes 229  (2)

(e)

160  —

Total operating expenses 8,804  6,337

Gain (loss) on sales of assets

14  —  —  —

Operating income (loss)

2,332  451

Other income and (deductions)

Interest expense, net (253) 16

(b),(e)

(146) 34  (b)

Other, net 46  (6)

(b),(c),(f)

(154) 187

(b),(c),(f)

Total other income and (deductions) (207) (300)

Income (loss) before income taxes 2,125  151

Income tax (benefit) expense

530  (232)

(b),(c)(d),(e),(f),(h)

22  149

(b),(c),(e),(f),(g)

Net income (loss) 1,603  129

Net income (loss) attributable to noncontrolling interests

13  3

(i)

11  2

(i)

Net income (loss) attributable to common shareholders $ 1,590  $ 118

Effective tax rate 24.9  % 14.6  %

Earnings per average common share

Basic $ 4.49  $ 0.38

Diluted $ 4.49  $ 0.38

Average common shares outstanding

Basic 354  313

Diluted 354  314

__________

(a)Results reported in accordance with GAAP.

(b)Adjustment for unrealized gains and losses on economic hedges, interest rate swaps, and fair value adjustments related to gas imbalances and equity investments.

(c)Adjustment for all gains and losses associated with Nuclear Decommissioning Trusts (NDT), Asset Retirement Obligation (ARO) accretion, Asset Retirement Cost (ARC) Depreciation, ARO remeasurement, and any earnings neutral impacts of contractual offset for Regulatory Agreement Units.

(d)In 2026, reflects the non-cash impacts of the amortization of certain commodity contracts at fair value associated with the Calpine acquisition.

(e)Adjustment for costs associated with the completion of the Calpine merger and subsequent integration of its operations.

(f)Adjustment for Pension and Other Postretirement Employee Benefits (OPEB) Non-Service credits.

(g)Adjustments related to plant retirements and divestitures.

(h)Adjustment to deferred income taxes due to changes in forecasted apportionment.

(i)Adjustment for elimination of the noncontrolling interest related to certain adjustments.

4

Table of Contents

Statistics

Three Months Ended March 31,

(GWhs)

2026 2025

Nuclear Generation(a)

Mid-Atlantic 13,326  13,177

Midwest 22,974  23,596

New York 6,014  6,280

ERCOT 2,352  2,529

Total Nuclear Generation 44,666  45,582

Natural Gas, Oil, and Renewables(a)

Mid-Atlantic 740  632

Midwest 344  385

ERCOT

2,738  3,084

Other Power Regions

1,742  1,804

Calpine

26,497  —

Total Natural Gas, Oil, and Renewables 32,061  5,905

Purchased Power

Mid-Atlantic 4,094  4,794

Midwest 417  488

ERCOT 686  659

Other Power Regions

9,317  10,994

Calpine

2,089  —

Total Purchased Power 16,603  16,935

Total Supply/Sales by Region

Mid-Atlantic 18,160  18,603

Midwest 23,735  24,469

New York 6,014  6,280

ERCOT

5,776  6,272

Other Power Regions

11,059  12,798

Calpine

28,586  —

Total Supply/Sales by Region 93,330  68,422

Three Months Ended March 31,

2026 2025

Outage Days(b)

Refueling 99  88

Non-refueling —  —

Total Outage Days 99  88

__________

(a)Includes the proportionate share of output where we have an undivided ownership interest in jointly-owned generating plants.

(b)Outage days exclude Salem and STP.

5

Table of Contents

Electricity Reference Prices(a)

Three Months Ended March 31,

ISO/RTO

2026 2025

PJM - PJM West $ 97.16  $ 53.69

PJM - ComEd 50.71  35.31

NYISO - Central 112.23  75.31

ERCOT - North 40.65  31.39

ERCOT - Houston 38.55  31.73

ISO-NE - Southeast Massachusetts 118.82  104.75

CAISO - NP15

29.01  40.96

Capacity Reference Prices

Three Months Ended March 31,

ISO/RTO 2026 2025

PJM - Eastern Mid-Atlantic Area Council $ 269.92  $ 53.60

PJM - ComEd 269.92  28.92

NYISO - Rest of State 112.33  86.33

ISO-NE - Rest of Pool(b)

84.37  82.57

ZEC Reference Prices(a)

Three Months Ended March 31,

State (Segment)

2026 2025

New Jersey (Mid-Atlantic)(c)(d)

$ —  $ 10.00

Illinois (Midwest) 1.17  9.38

New York (New York)(c)

14.76  18.27

Natural Gas Prices(a)

Three Months Ended March 31,

Location

2026 2025

Henry Hub $ 4.90  $ 4.28

Transco Zone 6(e)

9.48  6.06

Houston Ship Channel(f)

3.26  3.46

PG&E Citygate(g)

2.07  3.71

Algonquin Citygate(h)

14.08  11.83

__________

(a)Reference prices may not necessarily reflect prices we ultimately realize.

(b)We did not have significant activity at this zone for the three months ended March 31, 2025.

(c)The NY and NJ state-sponsored programs providing compensation for the emissions-free attributes of generation from certain of our nuclear units include contractual provisions that require us to refund that compensation up to the amount of the nuclear PTC received.

(d)The New Jersey ZEC program concluded in May 2025.

(e)Transcontinental Gas pipeline located in Mid-Atlantic region.

(f)Houston-area pipeline and industrial network located in ERCOT region.

(g)Pacific Gas & Electric Company virtual trading point located in West region.

(h)Algonquin Gas Transmission physical delivery point located in New England region.

6

EX-99.2

EX-99.2

Filename: ceg-20260511992.htm · Sequence: 3

ceg-20260511992

Earnings Conference Call First Quarter 2026 May 11, 2026

This presentation contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic, and financial performance, are intended to identify such forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the acquisition of Calpine Corporation, the pro forma combined company and its operations, strategies and plans, enhancements to investment-grade credit profile, synergies, opportunities and anticipated future performance and capital structure, and expected accretion to earnings per share and free cash flow. Information adjusted for the acquisition should not be considered a forecast of future results. Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. The factors that could cause actual results to differ materially from the forward-looking statements made by Constellation Energy Corporation and Constellation Energy Generation, LLC, (the Registrants) include those factors discussed herein, as well as the items discussed in (1) the Registrants’ combined 2025 Annual Report on Form 10-K in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 18 — Commitments and Contingencies; (2) this Quarterly Report on Form 10-Q in (a) Part II, ITEM 1A. Risk Factors, (b) Part I, ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part I, ITEM 1. Financial Statements: Note 15 — Commitments and Contingencies; and (3) other factors discussed in filings with the SEC by the Registrants. Investors are cautioned not to place undue reliance on these forward-looking statements, whether written or oral, which apply only as of the date of this presentation. Neither Registrant undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this presentation. Cautionary Statements Regarding Forward-Looking Information 2

The Registrants report their financial results in accordance with accounting principles generally accepted in the United States (GAAP). Constellation supplements the reporting of financial information determined in accordance with GAAP with certain non-GAAP financial measures, including: • Adjusted Operating Earnings (and/or its per share equivalent) exclude certain costs, expenses, gains and losses and other specified items, including adjustments for unrealized gains or losses on economic hedges, interest rate swaps, and fair value adjustments related to gas imbalances and equity investments, decommissioning related activity, asset impairments, certain amounts associated with plant retirements and divestitures, pension and other post-employment benefits (OPEB) non-service credits, and other items as set forth in the Appendix • Free cash flows before growth (FCFbG) is cash flows from operations less capital expenditures under GAAP for maintenance and nuclear fuel, equity investments, and adjusted for changes in collateral and non-recurring costs-to-achieve (CTA) • Adjusted gross margin is defined as adjusted operating revenues less adjusted purchased power and fuel expense, excluding revenue related to decommissioning, gross receipts tax, variable interest entities, and net of direct cost of sales for certain end-user businesses – Adjusted operating revenues excludes the unrealized gains or losses on economic hedging activities due to the volatility and unpredictability of the future changes in commodity prices – Adjusted purchased power and fuel excludes the unrealized gains or losses on economic hedging activities and fair value adjustments related to gas imbalances due to the volatility and unpredictability of the future changes in commodity prices • Adjusted operating and maintenance (O&M) excludes direct cost of sales for certain end-user businesses, Asset Retirement Obligation (ARO) accretion expense from unregulated units and decommissioning costs that do not affect profit and loss, the impact from operating and maintenance expense related to variable interest entities at Constellation, and other items as set forth in the reconciliation in the Appendix Due to the forward-looking nature of our Adjusted Operating Earnings guidance, Projected Adjusted Gross Margin, and Projected Free Cash Flow Before Growth, we are unable to reconcile these non-GAAP financial measures to the comparable GAAP measures given the inherent uncertainty required in projecting gains and losses associated with the various fair value adjustments required by GAAP. These adjustments include future changes in fair value impacting the derivative instruments utilized in our current business operations, as well as the debt and equity securities held within our nuclear decommissioning trusts, which may have a material impact on our future GAAP results. Non-GAAP Financial Measures 3

This information is intended to enhance an investor’s overall understanding of period over period financial results and provide an indication of Constellation’s operating performance by excluding items that are considered by management to be not directly related to the ongoing operations of the business. In addition, this information is among the primary indicators management uses as a basis for evaluating performance, allocating resources, setting incentive compensation targets and planning and forecasting of future periods. These non-GAAP financial measures are not a presentation defined under GAAP and may not be comparable to other companies’ presentations of similarly titled financial measures. Constellation has provided these non-GAAP financial measures as supplemental information and in addition to the financial measures that are calculated and presented in accordance with GAAP. These non-GAAP measures should not be deemed more useful than, a substitute for, or an alternative to the most comparable GAAP measures provided in the materials presented. Non-GAAP financial measures are identified by the phrase “non-GAAP” or an asterisk (*). Reconciliations of these non-GAAP measures to the most comparable GAAP measures are provided in the appendices and attachments to this presentation. Non-GAAP Financial Measures Continued 4

Positioned for Growth and Powering American Prosperity 5 Strong 20%+ Growth through 2029 • Base EPS* growth of 20%+ from 2026-2029 • Growth outlook excludes potential upside from: – Capturing premium value for 147 million MWhs of annual and available nuclear generation – Securing additional natural gas contracts – Accretive capital allocation • Targeting long-term rolling three-year Base EPS* growth of 10%+ Assets that Cannot be Replicated • Largest fleets of nuclear, natural gas and geothermal generation in the U.S. • Coast-to-coast fleet to support economic growth, electric system reliability and national security • New build cost of our ~55 GW fleet would be more than 3x our current enterprise value Driving Value through Capital Allocation • Strong investment grade balance sheet and growing free cash flow* enables our value-enhancing capital allocation framework: – Increase of share buyback authorization to $5.0B underscoring confidence in our outlook and executing on our future optionality – $3.9B of growth capital in projects at compelling returns – Scale that positions us to potentially bring natural gas, storage capacity and new nuclear uprates to the grid in the near term

Key Highlights 6 Pin Oak Creek Energy Center and Pastoria Solar Project completed Deployed ~$335M of capital for share repurchases (3) Q1 GAAP earnings of $4.49 per share (1) Q1 Adjusted Operating Earnings* of $2.74 per share (1) Affirming full-year Adjusted Operating Earnings* guidance range of $11.00 - $12.00 per share (2) Regulatory clarity will unlock data center contracting opportunities Note: GAAP to Non-GAAP reconciliations for Adjusted Operating Earnings* can be found on page 30 of the Appendix (1) Q1 2026 earnings per share is based on average diluted common shares outstanding of 354 million. This reflects an average share count during the quarter, including the issuance of shares for the Calpine transaction in January. (2) Full-year 2026 earnings guidance is based on expected average diluted common shares outstanding of 361 million (3) Represents principal deployed for program before taxes Pastoria Solar Project, CCGT, and battery storage colocation PUCT approval for net metering at the Freestone Energy Center Recognized as the 2026 Most Sustainable U.S. Company by Barron’s

Policy Timeline and Framework Coming into Focus at PJM 7 Proposed Timeline for RBP Clarity PJM Reliability Backstop Procurement (RBP) Can Meet Capacity Demands from Large Loads Stakeholder process and final vote June 2026 Sep 2026 March 2027 May 2026 PJM files proposal at FERC Bilateral contracting begins (Phase 1) Process shifts to central procurement (Phase 2) • A market solution to solve for capacity constraints caused by large load demand • Bilateral contracting phase encourages large load customers to contract for desired products quickly • Customers can control their own cost allocation with bilateral contracting Observations from the Texas Senate Bill 6 Legislation Setting a clear policy framework enables deal making Incentivizing large loads leads to broad consumer benefits Policymaking can drive economic growth

Constellation has Capacity Available within PJM Framework 8 New Capacity Options Will Enable Contracting of Our Baseload Clean Generation Constellation Submitted 5,000 MWs of New Capacity to PJM (1) Includes Alphabet, Meta, Microsoft and Amazon sourced from company reports (2) Includes nuclear and geothermal generation (3) Contracted MWhs include long-term agreements and New York ZEC 48 147 195 PTC Support / Available for Long-Term Agreement Contracted (3) Expected Baseload Clean Generation in 2029 (million MWhs) (2) ~93% MWhs within PJM Nuclear Uprates Natural Gas Battery and Storage CapEx Forecasts Continue Growing from Hyperscalers (1) $410 $580 2025 ~$130 2026 Guidance $710 CapEx Actuals CapEx Guidance ($B) Q1 spend

Constellation has Additional Optionality to Build on Powered Land Success in ERCOT 9 • Powered land reflects shovel ready data center sites with power, permits and direct connectivity • The land is co-located with existing generation or interconnected to the grid • The site needs sufficient land contiguous to the plant and the utility's ability to approve and accommodate incremental large load within a competitive timeline Access to land adjacent to sites Additional access to grid interconnection New and existing capacity across fuel types Experience navigating policy framework Data Center at Thad Hill Energy Center 780 MWs have been signed to-date with exclusivity for an incremental 380 MWs Constellation has available sites to replicate similar transactions for a $0.20 - $0.50 EPS* impact per 1,000 MWs Additional Opportunities in Our FleetKey Considerations for Powered Land Deals

(1) Q1 2025 earnings per share is based on average diluted common shares outstanding of 314 million (2) Q1 2026 earnings per share is based on average diluted common shares outstanding of 354 million. This reflects an average share count during the quarter, including the issuance of shares for the Calpine transaction in January. (3) Full-year 2026 earnings guidance is based on expected average diluted common shares outstanding of 361 million Q1 2026 Results 10 Year-over-Year Adj. Operating Earnings* Drivers $0.38 $4.49 $2.14 $2.74 GAAP Net Income Q1 2025 (1) GAAP Net Income Q1 2026 (2) Adjusted Operating Earnings* Q1 2025 (1) Adjusted Operating Earnings* Q1 2026 (2) • Contribution from Calpine • Higher capacity revenue offset by higher cost to serve load during Winter Storm Fern and lower ZEC revenues • Lower O&M from stock-based compensation • Higher number of planned nuclear refueling outage days Note: GAAP to Non-GAAP reconciliations for Adjusted Operating Earnings* can be found on page 30 of the Appendix $/share Affirming full-year Adjusted Operating Earnings* guidance range of $11.00 – $12.00 per share (3)

• Capacity factor: 92.3% – Percentage of time units were available and operating; planned and unplanned outages reduce capacity factor • Operated production of 40 TWhs • Completed two refueling outages with an average outage duration of 23 days 11 Constellation’s Coast-to-Coast Fleet Provides Reliable and Low Carbon Power (1) Salem and STP are not included in operational metrics (outage days, capacity factor and generation) (2) Capacity factors reflect net monthly mean methodology. Capacity factors for periods in prior years may not tie to previous earnings presentations due to change in methodology for comparison purposes, however full-year reported capacity factors are not impacted. (3) CCGT and Cogen statistics exclude Calpine assets pending divestiture (4) Equivalent Forced Outage Factor represents forced outages. Calculation adjusted to exclude events outside of management’s control. First quarter 2026 EFOF for the fleet including all gas/oil sites and hydro pumped storage was 4.5%. 75% 80% 85% 90% 95% 100% 30 35 40 45 T W h s C ap acity F acto r Q1 24 Q2 24 Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 Q4 25 Q1 26 TWhs Capacity Factor Best-in-Class Nuclear Operations (1, 2) • Capacity factor: 47.1% – Percentage of time units were available and dispatched to operate based on market signals • Operated production of 23 TWhs • EFOF (4): 5.1% Strong Performance Across Our Efficient CCGT and Cogen Natural Gas Fleet (3) 30% 40% 50% 60% 70% 80% 90% 100% 15 20 25 30 35 40 45 T W h s C ap acity F acto r Q1 24 Q2 24 Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 Q4 25 Q1 26 TWhs Capacity Factor

Leading Customer Platform Enables Businesses to Meet Their Energy and Sustainability Needs 12 Q1 2026 Retail Gas Load Served by Region (bcf)Q1 2026 Electric Load Served by Region (TWhs) 11 16 8 5 10 2 8 2 4 Midwest Mid-Atlantic ERCOT New York Other (1) 13 24 10 14 Wholesale Retail 23 38 192 19 Northeast Southeast Midwest West Note: Items may not sum due to rounding (1) Other includes New England, South and West Commercial Margins Have Expanded Over Time Expansion of traditional C&I power margins Increased demand for carbon-free solutions Incorporating the Calpine retail portfolio Retail

Opportunities Create Meaningful Upside to Adj. EPS* and Free Cashflow before Growth* in 2029 (1) 13 Earnings and FCFbG Opportunities in 2029Additional Optionality for 2029 Adj. EPS FCFbG Upside Earnings Upside Description Base Opportunity $125M - $325M $0.40 - $1.00 $20-$50/MWh premium to PTC floor 1 GW Nuclear PPA $75M - $175M $0.20 - $0.50 $10-$25/MWh premium for long-term agreement 1 GW Natural Gas Powered Land $25M - $75M $0.10 - $0.20 1% - 2% increased utilization driven by higher spark spreads (4) Natural Gas Capacity Factor $50M - $100M $0.10 - $0.30 $0.25 - $0.50 increase to average margins Commercial Margin $100M$0.30 PTC inflation at 3% vs 2% Increase to PTC Floor Specific to Investment $0.50 + Growth investments, share repurchases, etc. Capital Allocation (1) Opportunities may not be additive (2) Illustrative (3) Excludes after-tax proceeds from asset sales (4) Assumes 1% - 2% change in capacity factor calculated at $20 average base spark spread 30% - 35% $11.40 – $11.90 Enhanced Base 2029 2029 (2) $11.5 - $13.0B of FCFbG in 2028 - 2029 with Additional Upside 2026 – 2027 (3) 2028 - 2029 2028 – 2029 (2) $8.4B $11.5 - $13.0B FCFbG Upside Earnings Upside Description Enhanced Opportunity $150M - $450M $0.45 - $1.35 $1 - $3 power price and spark spread increase Power Prices and Spark Spreads

Constellation’s BBB+/Baa1 Balance Sheet is a Competitive Advantage Capital Allocation Priorities Reman Critical to Our Investment Thesis Returning Capital to Shareholders through Share Repurchases 14 Current Credit Ratings (2) (1) Constellation entered into an open-market repurchase (OMR) program in April 2026. Represents principal deployed for program before taxes. (2) Reflects senior unsecured rating for Constellation Energy Generation, LLC and Calpine LLC, respectively. Ratings shown have Stable outlook. Share Repurchase Allocation YTD (1) ~$335M Remaining Authorization Cumulatively, we have deployed ~$2.7B to repurchase ~18.5 million shares since separation $4.7B CalpineConstellation Baa1Baa1Moody’s BBB+BBB+S&P BBBN/RFitch

Positioned for Growth and Powering American Prosperity 15 Strong 20%+ Growth through 2029 • Base EPS* growth of 20%+ from 2026-2029 • Growth outlook excludes potential upside from: – Capturing premium value for 147 million MWhs of annual and available nuclear generation – Securing additional natural gas contracts – Accretive capital allocation • Targeting long-term rolling three-year Base EPS* growth of 10%+ Assets that Cannot be Replicated • Largest fleets of nuclear, natural gas and geothermal generation in the U.S. • Coast-to-coast fleet to support economic growth, electric system reliability and national security • New build cost of our ~55 GW fleet would be more than 3x our current enterprise value Driving Value through Capital Allocation • Strong investment grade balance sheet and growing free cash flow* enables our value-enhancing capital allocation framework: – Increase of share buyback authorization to $5.0B underscoring confidence in our outlook and executing on our future optionality – $3.9B of growth capital in projects at compelling returns – Scale that positions us to potentially bring natural gas, storage capacity and new nuclear uprates to the grid in the near term

Additional Disclosures 16

20 25 30 35 40 45 50 55 60 20 25 30 35 40 45 50 55 60 Market Revenues ($/MWh) M ar ke t R ev en u es + P T C ( $ / M W h ) 17 PTC Provides Support for Nuclear Units When Revenues Fall Below $44.75/MWh (1) Illustrative Payoff Dynamics for Non-State-Supported Units in 2026 • The PTC provides support of up to $15.00/MWh for units when revenues are between $26.00/MWh and $44.75/MWh while preserving the ability of the unit to participate in upside from commodity markets • The green line assumes revenues of $47.00/MWh. Since it is above the $44.75/MWh PTC phase out, units would not receive PTC value. • When revenues fall below the $44.75/MWh phase out, the PTC will provide revenue support for the units, bringing effective realized revenues back to $44.75/MWh • Assuming revenues of $35.00/MWh, the orange line, we would expect units to receive $7.80/MWh PTC, bringing the total value the unit would receive to $42.80/MWh and $45.40/MWh (2) on a tax adjusted basis Competitive Unit Payoff $35/MWh $47/MWh PTC provides support from $26/MWh - $44.75/MWh (1) See H.R. 5376 for additional details; all numbers assume that prevailing wage requirements are satisfied (2) Grossed up assuming 25% tax rate

• Starting in 2025, the maximum PTC and gross receipts threshold are subject to an inflation adjustment based on the GDP price deflator for the preceding calendar year: • Maximum PTC is rounded to nearest $2.50/MWh and gross receipts threshold is rounded to nearest $1.00/MWh Inflation of Nuclear Production Tax Credit (1) 18 (1) See H.R. 537 for additional details; all numbers assume that prevailing wage requirements are satisfied (2) Annual inflation adjustment is consistent with past published guidance for renewable energy credits, published annually (3) Reflects published inflation adjustment for 2024 of 2.482% (4) Assumes expected average shares outstanding of 361 million and effective tax rate of 26% across all years PTC Inflation AdjustmentPTC Overview Inflation Adjustment= GDP price deflator in preceeding year GDP price deflator in 2023 • The PTC is in effect through 12/31/32 • In 2025, Constellation qualified for the nuclear PTC up to $15.00/MWh; the PTC amount is reduced by 80% of gross receipts exceeding $26.00/MWh, phasing out completely after $44.75/MWh • The nuclear PTC can be credited against taxes or monetized through sale to an unrelated taxpayer Example Inflation Adjustments (2) Maximum PTC Gross Receipts Threshold Power Price At Which PTC=$0 Maximum PTC Gross Receipts Threshold Power Price At Which PTC=$0 Maximum PTC Gross Receipts Threshold Power Price At Which PTC=$0 Maximum PTC Gross Receipts Threshold Power Price At Which PTC=$0 2.5% 3.0% 3.5% 2024 15.00$ 25.00$ 43.75$ 15.00$ 25.00$ 43.75$ 15.00$ 25.00$ 43.75$ 15.00$ 25.00$ 43.75$ n/a n/a n/a 2025 15.00$ 26.00$ 44.75$ 15.00$ 26.00$ 44.75$ 15.00$ 26.00$ 44.75$ 15.00$ 26.00$ 44.75$ n/a n/a n/a 2026 15.00$ 26.00$ 44.75$ 15.00$ 26.00$ 44.75$ 15.00$ 26.00$ 44.75$ 15.00$ 27.00$ 45.75$ -$ -$ 0.20$ 2027 15.00$ 27.00$ 45.75$ 15.00$ 27.00$ 45.75$ 17.50$ 27.00$ 48.88$ 17.50$ 27.00$ 48.88$ -$ 0.80$ 0.80$ 2028 17.50$ 27.00$ 48.88$ 17.50$ 28.00$ 49.88$ 17.50$ 28.00$ 49.88$ 17.50$ 28.00$ 49.88$ 0.30$ 0.30$ 0.30$ 2029 17.50$ 28.00$ 49.88$ 17.50$ 28.00$ 49.88$ 17.50$ 29.00$ 50.88$ 17.50$ 29.00$ 50.88$ -$ 0.30$ 0.30$ 2030 17.50$ 29.00$ 49.88$ 17.50$ 29.00$ 50.88$ 17.50$ 30.00$ 51.88$ 17.50$ 30.00$ 51.88$ 0.30$ 0.60$ 0.60$ 2031 17.50$ 29.00$ 50.88$ 17.50$ 30.00$ 51.88$ 17.50$ 31.00$ 52.88$ 20.00$ 31.00$ 56.00$ 0.30$ 0.60$ 1.55$ 2032 17.50$ 29.00$ 50.88$ 17.50$ 30.00$ 51.88$ 20.00$ 32.00$ 57.00$ 20.00$ 33.00$ 58.00$ 0.30$ 1.85$ 2.15$ Impact to Base EPS* (4)2.0% Inflation Adjustment (3) 2.5% Inflation Adjustment 3.5% Inflation Adjustment3.0% Inflation Adjustment

19 2 0 2 7 $1,950 $334 2 0 2 8 $647 $79 2 0 2 9 2 0 3 0 $2,393 $105 2 0 3 1 2 0 3 2 2 0 3 3 $500 2 0 3 4 2 0 3 5 2 0 3 6 2 0 3 7 2 0 3 8 $900 2 0 3 9 2 0 4 0 $350 2 0 4 1 $788 2 0 4 2 2 0 4 3 2 0 4 4 2 0 4 5 2 0 4 6 2 0 4 7 2 0 4 8 2 0 4 9 2 0 5 0 2 0 5 1 2 0 5 2 2 0 5 3 $900 2 0 5 4 2 0 5 5 2 0 2 6 2 0 5 7 2 0 5 8 2 0 5 9 2 0 6 0 2 0 6 1 2 0 6 2 2 0 5 6 2 0 6 4 2 0 6 5 $800 2 0 6 6 $900 $600 2 0 6 3 CEG Sr. Notes CEG Tax-Exempt Bonds (3) CPN Sr. Notes (4) As of 3/31/2026 Long-Term Debt Maturity Profile (1) Long-Term Debt Balances ($B) (2) TotalCPNCEG $11.2$0.1$11.1Corporate Long-Term Debt $6.2$4.9$1.3Subsidiary Debt $17.5$5.0$12.4Total Long-Term Debt ($M) Note: Items may not sum due to rounding (1) Maturity profile excludes subsidiary debt, corporate term loans, P-cap facility, securitized debt, energy efficiency project financing, capital leases, unamortized debt issuance costs and unamortized discount/premium (2) Long-term debt balances reflect financials as of 3/31/26. Balances include instruments reflected in the maturity profile, as well as subsidiary debt and energy efficiency project financings. (3) Maturity profile reflects mandatory purchase dates for tax-exempt notes (4) Remaining “stub” balance relates to the 3.75% Calpine senior notes following the obligor exchange completed in January and is expected to remain at Calpine given the attractive coupon Corporate Long-Term Debt

Modeling Slides 20

Base Earnings Give Visibility into Constellation’s Stability and Growth 21 Enhanced Earnings (30-40% of Total) Base Earnings (60-70% of Total) Earnings that reflect additional value above base earnings Earnings that are consistent, visible and easy to calculate that will grow over time through long- term contracting, returns on contracted organic growth, PTC inflation adjustment and share repurchases • Forward power prices above base assumptions • Commercial margins above 10-year average • Capturing outsized value from volatility • Long-term contracts on generation fleet • Available nuclear generation at PTC floor (assuming 2% inflation) • Minimum expected earnings for fossil generation anchored by historical results • 10-year historical and forward weighted average commercial margins and volume

~20% Adjusted Operating Earnings* Growth on Base Earnings through 2029 22 $6.65 - $6.75 ~40% of Total 2026 (1) $7.60 - $7.70 35% - 40% of Total 2027 $11.40 - $11.90 30% - 35% of Total 2029 Guidance Range $11.00 - $12.00 (1) Full-year 2026 earnings guidance is based on expected average diluted common shares outstanding of 361 million. 2026 disclosures include earnings contribution from assets to be divested in 2H 2026. (2) Forward looking market prices as of 12/31/2025 2029 Projection Includes: 2029 Projection Does Not Include: • Incremental long-term deals • Higher gas plant utilization • Expanding Commercial margins • Higher return growth investments • Announced nuclear and gas long-term offtakes • Nuclear PTC at 2% inflation • Average Commercial margins • Current expectations (2) for forward looking market prices Enhanced Base

Opportunities Create Meaningful Upside to 2029 Adj. EPS* (1) 23 Base Earnings Opportunities in 2029Additional Optionality for 2029 Earnings ImpactDescriptionOpportunity $0.30 - $1.00 $1 - $3 power price increase for MWhs not under contract (above PTC floor) Nuclear Fleet Power Prices $0.15 - $0.35 $1 - $3 spark increase on open MWhs Gas Fleet Spark Spreads Upside to ’26-’29 Base EPS CAGR Earnings Impact DescriptionOpportunity 1% - 3%$0.40 - $1.00 $20-$50/MWh premium to PTC floor 1 GW Nuclear PPA 1% - 2%$0.20 - $0.50 $10-$25/MWh premium for long- term agreement 1 GW Natural Gas Powered Land ~1%$0.10 - $0.20 1% - 2% increased utilization driven by higher spark spreads (3) Natural Gas Capacity Factor ~1%$0.10 - $0.30 $0.25 - $0.50 increase to average margins Commercial margin 1%$0.30PTC inflation at 3% vs 2% Increase to PTC Floor (4) 2% +$0.50 + Share repurchases, growth investments, etc. Capital Allocation (1) Opportunities may not be additive (2) Illustrative (3) Assumes 1% -2% change in capacity factor calculated at $20 average base spark spread (4) Increase to PTC floor for 2029 only Enhanced Earnings Opportunities in 2029 30% - 35% $11.40 – $11.90 2029 2029 (2) Enhanced Base

Base Gross Margin Modeling Tool Definitions 24 DetailsBase Gross Margin • Carbon-free contracted generation for more than 5 years • Includes nuclear, solar, wind, storage and geothermal • Contracts that include energy, capacity, attributes, infrastructure and/or state program revenue Contracted Clean • CMC units • Remaining units (PTC) Available Nuclear • Contracted fossil/other generation for more than 5 years • Non-contracted fossil/other volume and spark spreads Natural Gas and Oil • Carbon-free generation contracted for less than 5 years and merchant carbon-free generation Wind/Solar/Hydro • Cleared and bilaterally sold capacity volumes with minimum expected priceNon-Nuclear Capacity • Average historical/forward 10-year unit margin and forecasted volume • Other non-commodity customer margin • Other commercial margins (~$475M/yr) Commercial Margin

Constellation Modeling Tools for Base Earnings 25 Note: 2026 earnings guidance based on expected average shares outstanding of 361 million. 2027 assumes average shares outstanding are held flat and is not reflective of capital allocation plans. (1) Reflected at ownership share; includes Salem and STP (2) Reflects calendar year price based on weighted average CMC price for 2024/2025, 2025/2026, and 2026/2027 planning years (3) To the extent we receive nuclear PTCs, the value will be reflected in revenues on the GAAP financial statements (4) Includes NY ZEC which reflects the total of energy, capacity, and ZEC consistent with the rate-setting mechanism (5) 2026 disclosures include earnings contribution from assets to be divested in 2H 2026 20272026 PricesQuantityPricesQuantityAdjusted Gross Margin* (Base Only) (1) Available Nuclear $34.50 /MWh23 million MWhs$34.09 /MWh53 million MWhsIllinois CMC Units (2) $45.75 /MWh127 million MWhs$44.75 /MWh101 million MWhsRemaining Units – PTC w/ 2% Inflation (3) $70.00 /MWh45 million MWhs$70.00 /MWh36 million MWhsContracted Clean (4) Natural Gas/Other Energy (5) $22 spark spread68 million MWhs$21 spark spread71 million MWhsERCOT $25 spark spread25 million MWhs$25 spark spread25 million MWhsWest $16 spark spread26 million MWhs$15 spark spread31 million MWhsOther $50.00 /MWh4 million MWhs$50.00 /MWh4 million MWhsWind/Solar/Hydro Non-Nuclear Capacity (5) $165 /MWd5,400 MWs$165 /MWd5,400 MWsWest (RA) $200 /MWd3,000 MWs$200 /MWd4,600 MWsMid-Atlantic/Midwest $85 /MWd2,500 MWs$85 /MWd2,500 MWsNew England Average MarginProjected VolumesAverage MarginProjected VolumesCommercial $4.25 - $4.35 /MWh245 million MWhs$4.25 - $4.35 /MWh245 million MWhsPower Margins $0.40 - $0.45 /dth850 million dth$0.40 - $0.45 /dth835 million dthGas Margins ~$175M~$150MNon-Commodity Customer Margin ~$475M~$475MOther Commercial Margin ($6.45 - $6.50) /MWh184 million MWhs($5.75 - $5.80) /MWh179 million MWhsNuclear Fuel Amortization $6.65 - $6.75 2026 $7.60 - $7.70 2027

Constellation Additional Modeling Inputs and Information 26 Note: 2026 earnings guidance based on expected average shares outstanding of 361 million. 2027 assumes average shares outstanding are held flat and is not reflective of capital allocation plans. (1) 2026 disclosures include earnings contribution from assets to be divested in 2H 2026 (2) Adjusted O&M* excludes impact from performance O&M associated with higher enhanced earnings. Total adjusted O&M* is $6,975 million and $7,075 million for 2026 and 2027, respectively. (3) TOTI excludes gross receipts tax (4) Base Interest expense excludes portion of interest attributable to re-levering following Calpine acquisition and is not reflective of capital allocation. Includes interest income from cash on hand. (5) Reflects effective tax rate including/ excluding impact of forecasted PTC revenues as of 12/31/2025. To the extent we receive nuclear PTCs, the value will be reflected in revenues on the GAAP financial statements. (6) Reflects additional O&M for compensation expense related to overperformance (7) Interest attributable to re-levering following Calpine acquisition 20272026 (1) Other Base Modeling Inputs ($7,025)($6,900)Adjusted O&M* (Excl. Performance Incentive Adj.) (2) ($675)($675)TOTI (3) --Other, Net ($2,000)($1,825)Depreciation and Amortization ($700)Base Interest Expense, Net (4) 25% / 26%26% / 26%Effective Tax Rate including / excluding PTC (5) Enhanced Modeling Tools $2,150 – $2,550$2,575 - $2,775Adjusted Gross Margin* (Enhanced Only) ($50)($75) Performance Incentive Adjustment (Applied Against Enhanced Earnings) (6) ($200)Enhanced Interest Expense, Net (7) Additional Information For Enhanced Tools as of 3/31/2026 --Power Margins Above Average 0%5%Percentage of Nuclear Fleet in PTC Zone Reference Prices as of 3/31/2026 $41.13$44.02NIHub ATC ($/MWh) $63.05$67.79PJM – W ATC ($/MWh) $61.65$65.02New York Zone A ATC ($/MWh) $21.21$18.55ERCOT – N ATC Spark Spread ($/MWh) $24.46$22.63ERCOT – N Peak Spark Spread ($/MWh)

Detailed Modeling Inputs for Base Earnings 27 (1) Reflects calendar year price based on weighted average CMC prices across planning years (2) Values include NY ZEC which is total of energy, capacity and ZEC consistent with rate-setting mechanism (3) Includes Salem and STP Detailed Base Earnings Modeling Inputs Available Nuclear 2026 2027 2028 2029 2030 Illinois CMC million MWhs 53 23 Illinois CMC $/MWhs (1) $34.09 $34.50 Remaining Units million MWhs 101 127 148 146 147 Remaining Units - PTC w/2% Inflation $/MWh $44.75 $45.75 $48.88 $49.88 $49.88 Contracted Clean Contracted Clean million MWhs 36 45 53 54 53 Contracted Clean $/MWhs (2) $70.00 $70.00 $77.00 $85.00 $88.00 Total Nuclear Volumes (million MWhs) 179 184 190 188 189 Number of Planned Refueling Outages (3) 15 15 13 15 14

Constellation Cleared/Committed Capacity Detail (1) 28 (1) Volumes are rounded and reflect Constellation’s ownership share of partially owned units (2) Revenues above the CMC value are returned to customers (3) Capacity revenue for nuclear units are included in the gross receipts calculation for the PTC and therefore should not be incorporated separately into Base Earnings calculations (4) Assets to be divested in 2026 are reflected in planning years 2025/2026 and 2026/2027 (5) Other PJM includes ~400MW committed in bilateral agreement that will be available for future capacity auctions (6) Base earnings for fossil/other capacity assumes a clearing price of $200/MWd (7) NEMA: Northeastern Massachusetts and Boston; SEMA: Southeastern Massachusetts (8) Net Qualifying Capacity excludes batteries and storage and includes ~700MW for Geysers that are included in Clean Contracted and therefore should not be incorporated separately into Base earnings calculations Volumes and prices for cleared/committed capacity differ from Base Earnings capacity assumptions and are not additive to Base Earnings PJM Volume (MW) Price ($/MWd) Volume (MW) Price ($/MWd) Volume (MW) Price ($/MWd) Nuclear ComEd (CMC units) (2) 6,200 n/a 6,200 n/a Other PJM 9,350 $270 9,350 $329 15,525 $333 Total Nuclear (3) 15,550 15,550 15,525 Fossil/Other (4) BGE 325 $466 375 $329 375 $333 Other PJM (5) 5,825 $270 6,225 $329 2,575 $333 Total Fossil/Other (6) 6,150 6,600 2,950 MISO Volume (MW) Price ($/MWd) Volume (MW) Price ($/MWd) Total Nuclear (3) 1,100 $217 1,100 $126 ISO-NE Volume (MW) Price ($/MWd) Volume (MW) Price ($/MWd) Volume (MW) Price ($/MWd) Fossil/Other NEMA/SEMA (7) 1,075 $87 1,025 $85 875 $118 NH/ME 1,150 $83 1,250 $85 1,200 $118 Total ISO-NE 2,225 2,275 2,075 CAISO Sold (MW) % Sold Sold (MW) % Sold Sold (MW) % Sold Net Qualifying Capacity (8) 5,925 95% 5,875 95% 5,275 85% 2025/2026 2026/2027 2027/2028 2026 2027 2028

Appendix Reconciliation of Non-GAAP Measures 29

Three Months Ended March 31, 20252026 Earnings Per Share Earnings Per Share Adjusted Operating Earnings* reconciliation ($M except per share data) $0.38$118$4.49$1,590 GAAP Net Income (Loss) Attributable to Common Shareholders $1.61$505($2.03)($721)Unrealized (Gain) Loss on Fair Value (1) $0.06$19($0.49)($174)Decommissioning-Related Activities (2) --$0.44$154Amortization of Acquired Commodity Contracts (3) $0.04$13$0.34$119Calpine Merger and Integration Costs (4) $0.03$11--Plant Retirements & Divestitures $0.03$9$0.06$20Pension & OPEB Non-Service (Credits) Costs --($0.04)($13)Income Tax Related Adjustments ($0.01)($2)($0.01)($3)Noncontrolling Interests (5) $2.14$673$2.74$972Adjusted Non-GAAP Operating Earnings* GAAP to Non-GAAP Reconciliation – Adjusted Operating Earnings* 30 Note: Items may not sum due to rounding. Earnings are reflected on an after-tax basis. Earnings per share amount is based on average diluted common shares outstanding of 354 million and 314 million for the three months ended March 31, 2026 and 2025, respectively. (1) Includes unrealized gains and losses on economic hedges, interest rate swaps, and fair value adjustments related to gas imbalances and equity investments (2) Reflects all gains and losses associated with NDTs, ARO accretion, ARC depreciation, ARO remeasurement, and impacts of contractual offset for Regulatory Agreement Units (3) In 2026, reflects the non-cash impacts of the amortization of certain commodity contracts recorded at fair value associated with the Calpine acquisition (4) Reflects costs associated with the completion of the Calpine merger and subsequent integration of its operations (5) Represents elimination of the noncontrolling interest related to certain adjustments

GAAP to Non-GAAP Reconciliation – Adjusted O&M* 31 20272026Adjusted O&M* Reconciliation ($M) $7,775$7,925GAAP O&M ($275)($250)Decommissioning-Related Activities (1) ($300)($250) Direct cost of sales incurred to generate revenues for certain Commercial and Power businesses (2) ($125)($400)Calpine Merger and Integration Costs (3) -($50)CCEC Settlement $7,075$6,975Adjusted O&M* Note: Items may not sum due to rounding. All amounts rounded to the nearest $25M. (1) Reflects all gains and losses associated with ARO accretion, ARO remeasurement, and any earnings neutral impacts of contractual offset for Regulatory Agreement Units (2) Reflects the direct cost of sales of certain businesses, which are included in gross margin (3) Reflects costs associated with the completion of the Calpine merger and subsequent integration of its operations

32 Contact Information InvestorRelations@constellation.com Links Events and Presentations Reports & SEC Filings Constellation Sustainability Report Nuclear 101

GRAPHIC

GRAPHIC

Filename: ceg-20260511992001.jpg · Sequence: 8

Binary file (51109 bytes)

Download ceg-20260511992001.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992002.jpg · Sequence: 9

Binary file (178477 bytes)

Download ceg-20260511992002.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992003.jpg · Sequence: 10

Binary file (178589 bytes)

Download ceg-20260511992003.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992004.jpg · Sequence: 11

Binary file (102760 bytes)

Download ceg-20260511992004.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992005.jpg · Sequence: 12

Binary file (137992 bytes)

Download ceg-20260511992005.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992006.jpg · Sequence: 13

Binary file (161481 bytes)

Download ceg-20260511992006.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992007.jpg · Sequence: 14

Binary file (113293 bytes)

Download ceg-20260511992007.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992008.jpg · Sequence: 15

Binary file (99973 bytes)

Download ceg-20260511992008.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992009.jpg · Sequence: 16

Binary file (136502 bytes)

Download ceg-20260511992009.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992010.jpg · Sequence: 17

Binary file (97496 bytes)

Download ceg-20260511992010.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992011.jpg · Sequence: 18

Binary file (145976 bytes)

Download ceg-20260511992011.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992012.jpg · Sequence: 19

Binary file (94591 bytes)

Download ceg-20260511992012.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992013.jpg · Sequence: 20

Binary file (137936 bytes)

Download ceg-20260511992013.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992014.jpg · Sequence: 21

Binary file (119750 bytes)

Download ceg-20260511992014.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992015.jpg · Sequence: 22

Binary file (138043 bytes)

Download ceg-20260511992015.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992016.jpg · Sequence: 23

Binary file (30102 bytes)

Download ceg-20260511992016.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992017.jpg · Sequence: 24

Binary file (124865 bytes)

Download ceg-20260511992017.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992018.jpg · Sequence: 25

Binary file (182394 bytes)

Download ceg-20260511992018.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992019.jpg · Sequence: 26

Binary file (100202 bytes)

Download ceg-20260511992019.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992020.jpg · Sequence: 27

Binary file (27716 bytes)

Download ceg-20260511992020.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992021.jpg · Sequence: 28

Binary file (105930 bytes)

Download ceg-20260511992021.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992022.jpg · Sequence: 29

Binary file (97292 bytes)

Download ceg-20260511992022.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992023.jpg · Sequence: 30

Binary file (129161 bytes)

Download ceg-20260511992023.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992024.jpg · Sequence: 31

Binary file (104146 bytes)

Download ceg-20260511992024.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992025.jpg · Sequence: 32

Binary file (147589 bytes)

Download ceg-20260511992025.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992026.jpg · Sequence: 33

Binary file (151901 bytes)

Download ceg-20260511992026.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992027.jpg · Sequence: 34

Binary file (90561 bytes)

Download ceg-20260511992027.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992028.jpg · Sequence: 35

Binary file (157685 bytes)

Download ceg-20260511992028.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992029.jpg · Sequence: 36

Binary file (39732 bytes)

Download ceg-20260511992029.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992030.jpg · Sequence: 37

Binary file (114245 bytes)

Download ceg-20260511992030.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992031.jpg · Sequence: 38

Binary file (77649 bytes)

Download ceg-20260511992031.jpg

GRAPHIC

GRAPHIC

Filename: ceg-20260511992032.jpg · Sequence: 39

Binary file (91765 bytes)

Download ceg-20260511992032.jpg

GRAPHIC

GRAPHIC

Filename: constellationlogoa.jpg · Sequence: 40

Binary file (15175 bytes)

Download constellationlogoa.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 42

v3.26.1

Document and Entity Information Document

May 11, 2026

Document Information [Line Items]

Document Type

8-K

Document Period End Date

May 11, 2026

Entity File Number

001-41137

Entity Registrant Name

CONSTELLATION ENERGY CORPORATION

Entity Tax Identification Number

87-1210716

Entity Incorporation, State or Country Code

PA

Entity Address, Address Line One

1310 Point Street

Entity Address, City or Town

Baltimore

Entity Address, State or Province

MD

Entity Address, Postal Zip Code

21231-3380

City Area Code

(833)

Local Phone Number

883-0162

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock, without par value

Trading Symbol

CEG

Security Exchange Name

NASDAQ

Entity Central Index Key

0001868275

Amendment Flag

false

Entity Emerging Growth Company

false

Constellation Energy Generation, LLC [Member]

Document Information [Line Items]

Entity File Number

333-85496

Entity Registrant Name

CONSTELLATION ENERGY GENERATION, LLC

Entity Tax Identification Number

23-3064219

Entity Incorporation, State or Country Code

PA

Entity Address, Address Line One

200 Energy Way

Entity Address, City or Town

Kennett Square

Entity Address, State or Province

PA

Entity Address, Postal Zip Code

19348-2473

City Area Code

(833)

Local Phone Number

883-0162

Entity Central Index Key

0001168165

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:

dei_DocumentInformationLineItems

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Details

Name:

dei_LegalEntityAxis=ceg_ConstellationEnergyGenerationLLCMember

Namespace Prefix:

Data Type:

na

Balance Type:

Period Type: