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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year Ended December 31, 2022
 or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission
File Number
Name of Registrant; State or Other Jurisdiction of Incorporation; Address of Principal Executive Offices; and Telephone NumberIRS Employer Identification Number
001-41137CONSTELLATION ENERGY CORPORATION87-1210716
(a Pennsylvania corporation)
1310 Point Street
Baltimore, Maryland 21231-3380
(833) 883-0162
333-85496CONSTELLATION ENERGY GENERATION, LLC23-3064219
(a Pennsylvania limited liability company)
200 Exelon Way
Kennett Square, Pennsylvania 19348-2473
(833) 883-0162
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
CONSTELLATION ENERGY CORPORATION:
Common Stock, without par valueCEGThe Nasdaq Stock Market LLC
Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
Constellation Energy CorporationYesxNo
Constellation Energy Generation, LLCYesNox
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
Constellation Energy CorporationYesNox
Constellation Energy Generation, LLCYesNox
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   
Constellation Energy CorporationYesxNo
Constellation Energy Generation, LLCYesxNo
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨



Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Constellation Energy CorporationLarge Accelerated FilerxAccelerated Filer
Non-accelerated Filer
Smaller Reporting Company
Emerging Growth Company
Constellation Energy Generation, LLCLarge Accelerated Filer
Accelerated Filer
Non-accelerated FilerxSmaller Reporting Company
Emerging Growth Company
If an emerging growth company, indicate by check mark if the registrant has 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. o
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act by the registered public accounting firm that prepared or issued its audit report.
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. o
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes    No  x
The estimated aggregate market value of the voting and non-voting common equity held by nonaffiliates of each registrant as of June 30, 2022 was as follows:
Constellation Energy Corporation$18,711,601,222
Constellation Energy Generation, LLCNot applicable
The number of shares outstanding of each registrant’s common stock as of January 31, 2023 was as follows:
Constellation Energy Corporation Common Stock, without par value327,131,082 
Constellation Energy Generation, LLCNot applicable
Documents Incorporated by Reference
Portions of the Registrants’ Definitive Proxy Statement relating to the 2023 Annual Meeting of Shareholders are incorporated by reference into Part III of this report. The Registrants expect to file the Definitive Proxy Statement with the Securities and Exchange Commission within 120 days after December 31, 2022.



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GLOSSARY OF TERMS AND ABBREVIATIONS
Constellation Energy Corporation and Related Entities
CEG ParentConstellation Energy Corporation
ConstellationConstellation Energy Generation, LLC (formerly Exelon Generation Company, LLC)
RegistrantsCEG Parent and Constellation, collectively
Antelope ValleyAntelope Valley Solar Ranch One
CENGConstellation Energy Nuclear Group, LLC
CRConstellation Renewables, LLC (formerly ExGen Renewables IV, LLC)
CRPConstellation Renewables Partners, LLC (formerly ExGen Renewables Partners, LLC)
FitzPatrickJames A. FitzPatrick nuclear generating station
GinnaR. E. Ginna nuclear generating station
NERNewEnergy Receivables LLC
NMPNine Mile Point nuclear generating station
RPGRenewable Power Generation, LLC
SolGenSolGen, LLC
TMIThree Mile Island nuclear facility


Former Related Entities
ExelonExelon Corporation
ComEdCommonwealth Edison Company
PECOPECO Energy Company
BGEBaltimore Gas and Electric Company
PHIPepco Holdings LLC (formerly Pepco Holdings, Inc.)
PepcoPotomac Electric Power Company
DPLDelmarva Power & Light Company
ACEAtlantic City Electric Company
BSCExelon Business Services Company, LLC




















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GLOSSARY OF TERMS AND ABBREVIATIONS
Other Terms and Abbreviations
ABOAccumulated Benefit Obligation
AECAlternative Energy Credit that is issued for each megawatt hour of generation from a qualified alternative energy source
AESOAlberta Electric Systems Operator
AOCIAccumulated Other Comprehensive Income (Loss)
APBOAccumulated Post-Retirement Benefit Obligation
ARCAsset Retirement Cost
AROAsset Retirement Obligation
ASAAsset Sale Agreement
Atomic Energy ActAtomic Energy Act of 1954, as amended
BcfBillion cubic feet
Brookfield RenewableBrookfield Renewable Partners, L.P.
CAISOCalifornia ISO
CBAsCollective Bargaining Agreements
CERCLAComprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended
CESClean Energy Standard
C&ICommercial and Industrial
Clean Air ActClean Air Act of 1963, as amended
Clean Energy LawIllinois Public Act 102-0062 signed into law on September 15, 2021
Clean Water ActFederal Water Pollution Control Amendments of 1972, as amended
CMCCarbon Mitigation Credit
CODMChief Operating Decision Maker
COReConstellation Offsite Renewables
CPPClean Power Plan
CTVConstellation Technology Ventures
DCPSCDistrict of Columbia Public Service Commission
DEPSCDelaware Public Service Commission
DOEUnited States Department of Energy
DOJUnited States Department of Justice
DPPDeferred Purchase Price
EBITDAEarnings Before Interest, Tax, Depreciation and Amortization
EDFElectricite de France SA and its subsidiaries
EFECEmissions-Free Energy Certificate
EMTEverett Marine Terminal
EPAUnited States Environmental Protection Agency
ERCOTElectric Reliability Council of Texas
ERISAEmployee Retirement Income Security Act of 1974, as amended
EROAExpected Rate of Return on Assets
ESGEnvironmental, Social, and Governance
ERPEnterprise Resource Program
EVElectric Vehicle
Federal Power ActFederal Power Act of 1920, as amended
FERCFederal Energy Regulatory Commission
Former PECO UnitsLimerick, Peach Bottom, and Salem nuclear generating units
Former ComEd UnitsBraidwood, Byron, Dresden, LaSalle and Quad Cities nuclear generating units
FRCCFlorida Reliability Coordinating Council
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FRRFixed Resource Requirement
GAAPGenerally Accepted Accounting Principles in the United States
GHGGreenhouse Gas
GWhGigawatt hour
ICCIllinois Commerce Commission
ICEIntercontinental Exchange
IPAIllinois Power Agency
IRAInflation Reduction Act of 2022
IRCInternal Revenue Code
IRSInternal Revenue Service
ISOIndependent System Operator
ISO-NEISO New England Inc.
ITCInvestment Tax Credit
kWhKilowatt-hour
LIBORLondon Interbank Offered Rate
LLRWLow-Level Radioactive Waste
LTIPLong-Term Incentive Plan
MATSU.S. EPA Mercury and Air Toxics Standards
MDEMaryland Department of the Environment
MDPSCMaryland Public Service Commission
MISOMidcontinent Independent System Operator, Inc.
MOPRMinimum Offer Price Rule
MRVMarket-Related Value
MPSCMissouri Public Service Commission
MWMegawatt
MWhMegawatt hour
N/ANot applicable
NAVNet Asset Value
NASDAQNasdaq Stock Market, Inc.
NDTNuclear Decommissioning Trust
NEILNuclear Electric Insurance Limited
NEPANational Environmental Policy Act of 1969
NERCNorth American Electric Reliability Corporation
NGXNatural Gas Exchange, Inc.
NJBPU  New Jersey Board of Public Utilities
NJDEPNew Jersey Department of Environmental Protection
Non-Regulatory Agreement UnitsNuclear generating units or portions thereof whose decommissioning-related activities are not subject to contractual elimination under regulatory accounting
NOSANuclear Operating Services Agreement
NPDESNational Pollutant Discharge Elimination System
NPNSNormal Purchase Normal Sale scope exception
NRCNuclear Regulatory Commission
NWPANuclear Waste Policy Act of 1982
NYISONew York ISO
NYMEXNew York Mercantile Exchange
NYPSCNew York Public Service Commission
OIESOOntario Independent Electricity System Operator
OPEBOther Postretirement Employee Benefits
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PA DEPPennsylvania Department of Environmental Protection
PAPUCPennsylvania Public Utility Commission
PCAOBPublic Company Accounting Oversight Board
PBOProjected Benefit Obligation
Pension Protection Act (the Act)Pension Protection Act of 2006
PG&EPacific Gas and Electric Company
PJMPJM Interconnection, LLC
PPAPower Purchase Agreement
PP&EProperty, Plant, and Equipment
Price-Anderson ActPrice-Anderson Nuclear Industries Indemnity Act of 1957
PRPPotentially Responsible Parties
PSDARPost-shutdown Decommissioning Activities Report
PSEGPublic Service Enterprise Group Incorporated
PTCProduction Tax Credit
PUCTPublic Utility Commission of Texas
PVPhotovoltaic
RCRAResource Conservation and Recovery Act of 1976, as amended
RECRenewable Energy Credit which is issued for each megawatt hour of generation from a qualified renewable energy source
Regulatory Agreement UnitsNuclear generating units or portions thereof whose decommissioning-related activities are subject to contractual elimination under regulatory accounting
RFPRequest for Proposal
RGGIRegional Greenhouse Gas Initiative
RINRenewable Identification Number
RMCRisk Management Committee
RMPRisk Management Policy
RNFRevenue Net of Purchased Power and Fuel Expense
RNGRenewable Natural Gas
ROEReturn on equity
ROURight-of-use
RPSRenewable Energy Portfolio Standards
RTORegional Transmission Organization
S&PStandard & Poor’s Ratings Services
SECUnited States Securities and Exchange Commission
SERCSERC Reliability Corporation (formerly Southeast Electric Reliability Council)
SNFSpent Nuclear Fuel
SOASociety of Actuaries
SOFRSecured Overnight Financing Rate
SOSStandard Offer Service
SPPSouthwest Power Pool
SSASocial Security Administration
STEMScience, Technology, Engineering, and Mathematics
TWhTerawatt-hour
U.S. Court of Appeals for the D.C. Circuit
United States Court of Appeals for the District of Columbia Circuit
VIEVariable Interest Entity
WECCWestern Electric Coordinating Council
ZECZero Emission Credit
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ZESZero Emission Standard
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FILING FORMAT
This combined Annual Report on Form 10-K is being filed separately by Constellation Energy Corporation and Constellation Energy Generation, LLC, (Registrants). Information contained herein relating to any individual Registrant is filed by the Registrant on its own behalf.
CAUTIONARY STATEMENTS REGARDING FORWARD-LOOKING INFORMATION
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.
The factors that could cause actual results to differ materially from the forward-looking statements made by us include those factors discussed herein, including those factors discussed 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, (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 19, Commitments and Contingencies, and (d) other factors discussed in filings with the SEC by the Registrants.
Readers are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this report. None of the Registrants undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this report.
WHERE TO FIND MORE INFORMATION
The SEC maintains an Internet site at www.sec.gov that contains reports, proxy and information statements, and other information that we file electronically with the SEC. These documents are also available to the public from commercial document retrieval services and our website at www.ConstellationEnergy.com. Information contained on our website shall not be deemed incorporated into, or to be a part of, this report.
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PART I
ITEM 1. 
General
On February 21, 2021, the Board of Directors of Exelon Corporation (“Exelon”) authorized management to pursue a plan to separate its competitive generation and customer-facing energy businesses, conducted through Constellation Energy Generation, LLC (“Constellation”, formerly Exelon Generation Company, LLC) and its subsidiaries, into an independent, publicly traded company. Constellation Energy Corporation (“CEG Parent” or the “Company”), a Pennsylvania corporation and a direct, wholly owned subsidiary of Exelon, was newly formed for the purpose of separation and had not engaged in any activities except in preparation for the distribution. On February 1, 2022, Exelon completed the separation by distributing all the outstanding shares of the Company’s common stock, on a pro rata basis to the holders of Exelon’s common stock, with the Company holding all the interests in Constellation previously held by Exelon (the "Separation"). As of 2002, Constellation has been an individual registrant since the registration of their public debt securities under the Securities Act. As an individual registrant, Constellation has historically filed consolidated financial statements to reflect their financial position and operating results as a stand-alone, wholly owned subsidiary of Exelon.
Unless otherwise indicated or the context otherwise requires, references herein to the terms "we," "our," "us" and "the Company" refer collectively to CEG Parent and Constellation. See Glossary for defined terms.
Our Business
We are the nation’s largest producer of carbon-free energy and a leading supplier of energy products and services to businesses, homes, community aggregations and public sector customers across the continental United States, including three-fourths of Fortune 100 companies. Our generation fleet of nuclear, hydro, wind, natural gas, and solar generation facilities has the generating capacity to power the equivalent of 15 million homes, producing 11 percent of the carbon-free energy in the United States. Constellation’s fleet is helping to accelerate the nation’s transition to a carbon-free future with more than 32,355 megawatts of capacity and an annual output that is nearly 90 percent carbon-free. This makes us an important partner to businesses and state and local governments that are setting ambitious carbon-reduction goals and seeking long-term solutions to the climate crisis. We employ approximately 13,370 people, and do business in 48 states, the District of Columbia, Canada, and the United Kingdom.
Our generation fleet produces more clean, carbon-free energy than any other company in the United States. We are committed to a clean energy future, and we believe our generation fleet is essential to helping meet clean energy targets, at both the state and national level. Our customer-facing business is one of the nation's largest competitive energy suppliers, offering innovative solutions along the sustainability continuum to meet customer clean energy and climate goals.
Our Operations
We operate the largest carbon-free generation fleet in the nation and are one of the largest competitive electric generation companies in the country, as measured by owned and contracted MWs. Collectively, the combined fleet is nearly 90% carbon-free (based on generation output of electricity) and is the fourth largest generation portfolio in the U.S. in terms of total generation with meaningful geographic diversity.

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At December 31, 2022, our generating resources consisted of the following:
Type of CapacityMWs
Owned generation assets(a)
Nuclear20,895 
Natural gas and oil8,807 
       Renewable(b)
2,653 
Owned generation assets32,355 
Contracted generation(c)
3,883 
Total generating resources36,238 
__________
(a)Net generation capacity is stated at proportionate ownership share. See ITEM 2. PROPERTIES for additional information.
(b)Includes wind, hydroelectric, and solar generating assets.
(c)Electric supply procured under unit-specific agreements.

The following map illustrates the locations of our owned generation facilities as of December 31, 2022:
The Company's Generation Fleet Map(a)
https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g1.jpg

Owned Assets(b)
https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g2.jpg Nuclear         https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g3.jpg Wind
https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g4.jpg Gas/Other        https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g5.jpg Solar
https://cdn.kscope.io/78994efdd2aefca5f2d2b721751c5a97-ceg-20221231_g6.jpg Hydro            
__________
(a)Note: One symbol is included per location. Some locations may have multiple generating units. Locations in tight geographic proximity may appear as one symbol. Units that are not currently operational are not captured.
(b)Does not reflect Grand Prairie Generating Station (Gas/Other), located in Alberta, Canada.
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We have five reportable segments, as described in the table below, representing the different geographical areas in which our owned generating resources are located and our customer-facing activities are conducted.
Segment
Net Generation Capacity (MWs)(a)
% of Net Generation CapacityGeographical Area
Mid-Atlantic10,495 32 %Eastern half of PJM, which includes New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia, and parts of Pennsylvania and North Carolina
Midwest11,892 37 %Western half of PJM and the United States footprint of MISO, excluding MISO’s Southern Region
New York3,093 10 %NYISO
ERCOT3,610 11 %Electric Reliability Council of Texas
Other Power Regions3,265 10 %New England, South, West, and Canada
Total32,355 100 %
__________
(a)Net generation capacity is stated at proportionate ownership share as of December 31, 2022. See ITEM 2. PROPERTIES for additional information.
The following table shows sources of electric supply in GWhs for 2022 and 2021:
Source of Electric Supply
20222021
Nuclear(a)(b)
173,350 172,990 
Purchases — non-trading portfolio70,682 67,605 
Natural gas and oil21,563 19,960 
Renewable(c)
6,049 6,577 
Total Supply271,644 267,132 
__________
(a)Includes the proportionate share of output where we have an undivided ownership interest in jointly-owned generating plants and includes the total output of plans that are fully consolidated.
(b)2021 values have been revised from those previously reported to correctly reflect our 82% undivided ownership interest in Nine Mile Point Unit 2.
(c)Includes wind, hydroelectric, solar, and in 2021, biomass generating assets. See Note 2 — Mergers, Acquisitions, and Dispositions of the Combined Notes to Consolidated Financial Statements for additional information regarding the sale of our biomass facility.

Nuclear Facilities
Our nuclear fleet is the nation’s largest, with current generating capacity of approximately 21 gigawatts; it produced 173 terawatt hours of zero-emissions electricity during 2022 – enough to power 15.4 million homes and avoid more than 123 million metric tons of carbon emissions according to the EPA GHG Equivalencies Calculator. We have ownership interests in 13 nuclear generating stations currently in service, consisting of 23 units. As of December 31, 2022, we wholly own all our nuclear generating stations, except for undivided ownership interests in four jointly owned nuclear stations: Quad Cities (75% ownership), Peach Bottom (50% ownership), Salem (42.59% ownership), and Nine Mile Point Unit 2 (82% ownership), which are consolidated in our consolidated financial statements relative to our proportionate ownership interest in each unit. See ITEM 2. PROPERTIES for additional information on our nuclear facilities.
On August 6, 2021, Constellation and EDF entered into a settlement agreement pursuant to which we, through a wholly owned subsidiary, purchased EDF’s equity interest in CENG, a joint venture with EDF, which wholly owned the Calvert Cliffs and Ginna nuclear stations and Nine Mile Point Unit 1, in addition to the 82% undivided ownership interest in Nine Mile Point Unit 2. Prior to August 6, 2021, we had a 50.01% membership interest in CENG, however CENG is consolidated within our results for all periods presented. See Note 2 — Mergers, Acquisitions, and Dispositions and Note 22 — Variable Interest Entities of the Combined Notes to Consolidated
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Financial Statements for additional information regarding the acquisition of EDF's equity interest in CENG and the CENG consolidation.
We operate all of these nuclear generating stations, except for the two units at Salem, which are operated by PSEG Nuclear, LLC (an indirect, wholly owned subsidiary of PSEG), and we have consistently operated our nuclear plants at best-in-class levels. During 2022, 2021, and 2020, our nuclear generating facilities achieved capacity factors(a) of 94.8%, 94.5%, and 95.4%, respectively, at ownership percentage. The nuclear capacity factor has been approximately four percentage points better than the industry average annually since 2013.
Capacity factors, which are significantly affected by the number and duration of refueling and non-refueling outages, can have a significant impact on our results of operations. In 2022, we achieved an average refueling outage duration of 21 days for units we operate. We achieved an average refueling outage duration of 22 days in both 2021 and 2020, against industry averages of 32 and 34 days, respectively.
We manage our scheduled refueling outages to minimize their duration and to maintain high nuclear generating capacity factors, resulting in a stable supply position for our wholesale and retail power marketing activities. In 2022, 2021, and 2020, electric supply (in GWhs) generated from our nuclear generating facilities was 64%, 65%, and 62%, respectively, of our total electric supply, which also includes natural gas, oil, and renewable generation and electric supply purchased for resale. See ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS for additional information on electric supply sources.
During scheduled refueling outages, we perform maintenance and equipment upgrades in order to maintain safe, reliable operations and to minimize the occurrence of unplanned outages. In addition to the maintenance and equipment upgrades performed by us during scheduled refueling outages, we have extensive operat