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WEC ENERGY GROUP, INC.

For the period ended Jun 30, 2025. Filed Aug 1, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2025 · Filed Aug 1, 2025

WEC$117.15+1.1%Stored close · as of Nov 9, 2026

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2025

OR

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________________ to ___________________

Commission File NumberRegistrant; State of Incorporation;Address; and Telephone NumberIRS EmployerIdentification No.
001-09057WEC ENERGY GROUP, INC.39-1391525

(AWisconsin Corporation)

231 West Michigan Street

P.O. Box 1331

Milwaukee, WI 53201

(414)221-2345

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

Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which Registered
Common Stock, $.01 Par ValueWECNew York Stock Exchange

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.

Yes ☒ No☐

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 such files).

Yes ☒ 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.

Large accelerated filer☒Accelerated filer☐
Non-accelerated filer☐Smaller 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.☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes☐ No☒

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date (June 30, 2025):

Common Stock, $.01 Par Value,321,866,395 shares outstanding

QUARTERLY REPORT ON FORM 10-Q

For the Quarter Ended June 30, 2025

TABLE OF CONTENTS

Page
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION1
PART I.FINANCIAL INFORMATION4
ITEM 1.FINANCIAL STATEMENTS (UNAUDITED)4
Condensed Consolidated Income Statements4
Condensed Consolidated Statements of Comprehensive Income5
Condensed Consolidated Balance Sheets6
Condensed Consolidated Statements of Cash Flows7
Condensed Consolidated Statements of Equity8
Notes to Condensed Consolidated Financial Statements10
Page
Note 1General Information10
Note 2Acquisitions10
Note 3Operating Revenues11
Note 4Credit Losses14
Note 5Regulatory Assets and Liabilities17
Note 6Property, Plant, and Equipment18
Note 7Common Equity18
Note 8Short-Term Debt and Lines of Credit20
Note 9Long-Term Debt21
Note 10Leases22
Note 11Materials, Supplies, and Inventories23
Note 12Income Taxes24
Note 13Fair Value Measurements25
Note 14Derivative Instruments27
Note 15Guarantees28
Note 16Employee Benefits29
Note 17Goodwill and Intangibles29
Note 18Investment in Transmission Affiliates31
Note 19Segment Information32
Note 20Variable Interest Entities37
Note 21Commitments and Contingencies38
Note 22Supplemental Cash Flow Information44
Note 23Regulatory Environment44
Note 24New Accounting Pronouncements47
ITEM 2.MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS48
ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK89
ITEM 4.CONTROLS AND PROCEDURES89
PART II.OTHER INFORMATION90
ITEM 1.LEGAL PROCEEDINGS90
ITEM 1A.RISK FACTORS90
ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS90
ITEM 5.OTHER INFORMATION90
ITEM 6.EXHIBITS91
SIGNATURE92
06/30/2025 Form 10-QiWEC Energy Group, Inc.

GLOSSARY OF TERMS AND ABBREVIATIONS

The abbreviations and terms set forth below are used throughout this report and have the meanings assigned to them below:

Subsidiaries and Affiliates
ATCAmerican Transmission Company LLC
ATC HoldcoATC Holdco LLC
Blooming GroveBlooming Grove Wind Energy Center LLC
BluewaterBluewater Natural Gas Holding, LLC
Delilah IDelilah Solar Energy LLC
Hardin IIIHardin Solar III Energy Center
IntegrysIntegrys Holding, Inc.
JayhawkJayhawk Wind, LLC
MERCMinnesota Energy Resources Corporation
MGUMichigan Gas Utilities Corporation
NSGNorth Shore Gas Company
PGLThe Peoples Gas Light and Coke Company
Samson ISamson I Solar Energy Center LLC
Tatanka RidgeTatanka Ridge Wind LLC
UMERCUpper Michigan Energy Resources Corporation
WEWisconsin Electric Power Company
We PowerW.E. Power, LLC
WEC Energy GroupWEC Energy Group, Inc.
WECIWEC Infrastructure LLC
WECI Energy Holding IIIWEC Infrastructure Energy Holding III LLC
WEPCo Environmental TrustWEPCo Environmental Trust Finance I, LLC
WGWisconsin Gas LLC
WPSWisconsin Public Service Corporation
Federal and State Regulatory Agencies
CBPUnited States Customs and Border Protection Agency
DOCUnited States Department of Commerce
EPAUnited States Environmental Protection Agency
FERCFederal Energy Regulatory Commission
ICCIllinois Commerce Commission
IRSUnited States Internal Revenue Service
MPSCMichigan Public Service Commission
PSCWPublic Service Commission of Wisconsin
SECUnited States Securities and Exchange Commission
USITCUnited States International Trade Commission
WDNRWisconsin Department of Natural Resources
Accounting Terms
AFUDCAllowance for Funds Used During Construction
AROAsset Retirement Obligation
ASCAccounting Standards Codification
ASUAccounting Standards Update
FASBFinancial Accounting Standards Board
GAAPUnited States Generally Accepted Accounting Principles
LIFOLast-In, First-Out
OPEBOther Postretirement Employee Benefits
VIEVariable Interest Entity
Environmental Terms
BATWBottom Ash Transport Water
BTABest Technology Available
CAAClean Air Act
06/30/2025 Form 10-QiiWEC Energy Group, Inc.
CASACClean Air Scientific Advisory Committee
CCRCoal Combustion Residuals
CO2Carbon Dioxide
CRLCombustine Residual Leachate
CWAClean Water Act
ELGSteam Electric Effluent Limitation Guidelines
FGDFlue Gas Desulfurization
GHGGreenhouse Gas
GHG Power Plant Rule2024 Greenhouse Gas Power Plant Rule
MATSMercury and Air Toxics Standards
NAAQSNational Ambient Air Quality Standards
NOVNotice of Violation
NOxNitrogen Oxide
PMParticulate Matter
WPDESWisconsin Pollutant Discharge Elimination System
Measurements
BcfBillion Cubic Feet
DthDekatherm
lb/MMBtuPound Per Million British Thermal Unit
MWMegawatt
MWhMegawatt-hours
µg/m3Micrograms Per Cubic Meter
Other Terms and Abbreviations
2024A Junior NotesWEC Energy Group, Inc.'s Series 2024A 6.69% Fixed-to-Fixed Reset Rate Junior Subordinated Notes Due June 15, 2055
2024B Junior NotesWEC Energy Group, Inc.'s Series 2024B 6.69% Fixed-to-Fixed Reset Rate Junior Subordinated Notes Due June 15, 2055
2027 NotesWEC Energy Group, Inc.'s 4.375% Convertible Senior Notes Due 2027
2028 NotesWEC Energy Group, Inc.'s 3.375% Convertible Senior Notes Due 2028
2029 NotesWEC Energy Group, Inc.'s 4.375% Convertible Senior Notes Due 2029
ADAntidumping
AIArtificial Intelligence
AMIAdvanced Metering Infrastructure
AREPAmended Renewable Energy Plan
Badger Hollow WindBadger Hollow Wind Energy Generation Facility
CABOClean and Affordable Buildings Ordinance
Chicago, IL-IN-WIChicago, Illinois, Indiana, and Wisconsin
CODMChief Operating Decision Maker
ColumbiaColumbia Energy Center
Compensation CommitteeCompensation Committee of the Board of Directors
CVDCountervailing Duty
D.C. Circuit Court of AppealsUnited States Court of Appeals for the District of Columbia Circuit
DarienDarien Solar Park
DRERDedicated Renewable Energy Resource
EDAEquity Distribution Agreement
EdgewaterEdgewater Generating Station
EPSEarnings Per Share
ERGSElm Road Generating Station
ETBEnvironmental Trust Bond
EVElectric Vehicle
Exchange ActSecurities Exchange Act of 1934, as amended
FTRFinancial Transmission Right
Good OakGood Oak Solar Generation Facility
GristmillGristmill Solar Generation Facility
High NoonHigh Noon Solar Energy Center
06/30/2025 Form 10-QiiiWEC Energy Group, Inc.
IRAInflation Reduction Act
ITCInvestment Tax Credit
LDCLocal Natural Gas Distribution Company
LNGLiquefied Natural Gas
MG&EMadison Gas and Electric Company
MISOMidcontinent Independent System Operator, Inc.
NOPPNotice of Planned Participation
OBBBAOne Big Beautiful Bill Act
OCPPOak Creek Power Plant
ParisParis Solar-Battery Park
PIPPPresque Isle Power Plant
PPAPower Purchase Agreement
PRPPipe Replacement Program
PTCProduction Tax Credit
PulliamJ.P. Pulliam Generating Station
QIPQualifying Infrastructure Plant
RenegadeRenegade Solar Energy Center
RICEReciprocating Internal Combustion Engine
RNGRenewable Natural Gas
ROEReturn on Equity
S&PStandard & Poor's
SaratogaSaratoga Solar Electric Generation and BESS Facility
SIPState Implementation Plan
Supreme CourtUnited States Supreme Court
Tax LegislationTax Cuts and Jobs Act of 2017
TCRTransmission Congestion Act
UEAUncollectible Expense Adjustment
UFLPAUyghur Forced Labor Prevention Act
UrsaUrsa Solar Electric Generation Facility
VAPPValley Power Plant
VLCVery Large Customer
West RiversideWest Riverside Energy Center
WestonWeston Generating Station
WhitetailWhitetail Wind Energy Generation Facility
WPLWisconsin Power and Light Company
06/30/2025 Form 10-QivWEC Energy Group, Inc.
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.