What changed in this filing

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Item 2. Properties

2025-02-21 compared with 2024-02-22 · 34 added, 22 removed, 102 unchanged (35% of the section changed)

1 unchanged sentence

However, the major portion of our electric utility distribution lines, steam utility distribution mains, and natural gas utility distribution mains and services are located on or under streets and highways, on land owned by others, and are generally subject to granted easements, consents, or permits.

2024 Form 10-K 41

WEC Energy Group, Inc.

Electric Facilities

4 unchanged sentences

Fox Energy Center Wrightstown, WI Natural Gas 3 581

Concord Watertown, WI Natural Gas/Oil 4 365

Paris Union Grove, WI Natural Gas/Oil 4 360

Concord Generating Station Watertown, WI Natural Gas/Oil 4 357

VAPP Milwaukee, WI Natural Gas 2 268

Germantown Germantown, WI Natural Gas/Oil 5 263

Germantown Power Plant Germantown, WI Natural Gas/Oil 5 255

Whitewater Whitewater, WI Natural Gas/Oil 1 235

West Riverside Beloit, WI Natural Gas 1 191 (2)

De Pere Energy Center De Pere, WI Natural Gas/Oil 1 168

West Marinette Marinette, WI Natural Gas

West Marinette Power Plant Marinette, WI Natural Gas

Weston Rothschild, WI Natural Gas

Kuester Negaunee, MI Natural Gas 7 128

West Riverside Beloit, WI Natural Gas 2 85 (2)

Kuester Generating Station Negaunee, MI Natural Gas 7 128

Pulliam Green Bay, WI Natural Gas

Mihm Baraga, MI Natural Gas 3 55

Mihm Generating Station Baraga, MI Natural Gas 3 55

Total natural gas-fired plants 44 4,192

Coal-fired plants

OCPP Oak Creek, WI Coal 4 1,103 (7)

ERGS Oak Creek, WI Coal 2 1,083 (2) (3)

Weston Rothschild, WI Coal 2 708 (2) (7)

OCPP Oak Creek, WI Coal 2 599 (7)

Columbia Portage, WI Coal 2 308 (2) (7)

4 unchanged sentences

Fond du Lac, WI Wind 88 145

Crane Creek Wind Farm

Howard County, IA Wind 66 99

Crane Creek Wind Park Howard County, IA Wind 66 99

Red Barn Grant County, WI Wind 28 82 (2)

3 unchanged sentences

Solar facilities

Paris Kenosha County, WI Solar 53 180 (2)

Two Creeks Manitowoc County, WI

4 unchanged sentences

Solar 40 100 (2)

DER Facilities (5 in number) Wisconsin Solar 15 38 (8)

Solar Now Wisconsin Solar 29 30 (9)

Total solar facilities 226 548

1 unchanged sentence

Hydro plants (30 in number) WI and MI Hydro 80 96 (4) (5)

Rothschild Biomass Plant Rothschild, WI Biomass 1 46 (6)

Rothschild Rothschild, WI Biomass 1 44 (6)

Total other renewable facilities 81 140

Total electric generation facilities 737 8,158

2023 Form 10-K 41

WEC Energy Group, Inc.

(1) Capacity for our electric generation facilities, other than wind and solar generating facilities, is based on rated capacity, which is the net power output under average operating conditions with equipment in an average state of repair as of a given month in a given year.

1 unchanged sentence

The summer period is the most relevant for capacity planning purposes.

This is a result of continually reaching demand peaks in the summer months, primarily due to air conditioning demand.

This is a result of continually reaching demand peaks in the

2024 Form 10-K 42

WEC Energy Group, Inc.

summer months, primarily due to air conditioning demand.

Capacity for wind generating facilities is based on nameplate capacity, which is the amount of energy a turbine should produce at optimal wind speeds.

12 unchanged sentences

The plant also has the ability to burn natural gas if wood waste and wood shavings are not available.

(7) We expect to retire approximately 1,800 MWs of additional fossil-fueled generation by the end of 2031, which includes the planned retirement in 2024-2025 of OCPP Units 5-8, the planned retirement by June 2026 of jointly-owned Columbia Units 1-2, and the planned retirement in 2031 of Weston Unit 3.

(7) We expect to retire approximately 1,200 MWs of additional coal-fired generation, which includes the planned retirements of OCPP Units 7-8, the jointly-owned Columbia Units 1-2 while investigating conversion of at least one unit to natural gas, and Weston Unit 3.

(8) DER facilities are distribution system interconnected solar projects that are typically 5-10 MWs each.

(9) See the Corporate Developments section for more information on the Solar Now program.

As of December 31, 2024, we operated approximately 35,300 miles of overhead distribution lines and approximately 37,100 miles of underground distribution cable, as well as approximately 420 electric distribution substations and approximately 640,100 line transformers.

10 unchanged sentences

• A 2.0 Bcf LNG plant located in central Illinois,

• A 1.0 Bcf LNG plant located in southern Wisconsin,

• Two 1.0 Bcf LNG plants located in southern Wisconsin,

• A peak-shaving facility that can store the equivalent of approximately 80 MDth in liquefied petroleum gas located in Illinois, and

• LNG storage plants, located in Wisconsin, with a total send-out capability of 273,600 Dth per day.

Our natural gas distribution and gas storage systems included distribution mains and transmission mains connected to the pipeline transmission systems of Alliance Pipeline, ANR Pipeline Company, Centra Pipelines, Consumers Energy, DTE Gas Company, Enbridge Gas Inc., Great Lakes Transmission Company, Guardian Pipeline L.L.C., Interstate Power and Light Company, Kinder Morgan Illinois Pipeline, Midwestern Gas Pipeline Company, Natural Gas Pipeline Company of America, Nicor Gas, Northern Border Pipeline Company, Northern Natural Gas Company, Northwest Gas of Cottonwood County, LLC, Northwestern Energy, Panhandle Gas Transmission, SEMCO, Trunkline Gas Pipeline, Vector Pipeline Company, and Viking Gas Transmission.

Our natural gas distribution and gas storage systems included distribution and transmission mains connected to the pipeline transmission systems of Alliance Pipeline, ANR Pipeline Company, Centra Pipelines, Consumers Energy, DTE Gas Company, Enbridge Gas Inc., Great Lakes Transmission Company, Guardian Pipeline L.L.C., Interstate Power and Light Company, Kinder Morgan Illinois Pipeline, Midwestern Gas Pipeline Company, Natural Gas Pipeline Company of America, Nicor Gas, Northern Border Pipeline Company, Northern Natural Gas Company, Northwest Gas of Cottonwood County, LLC, Northwestern Energy, Panhandle Gas Transmission, SEMCO, Trunkline Gas Pipeline, Vector Pipeline Company, and Viking Gas Transmission.

Our LNG storage plants convert and store, in liquefied form, natural gas received during periods of low consumption.

We also own office buildings, natural gas regulating and metering stations, and major service centers, including garage and warehouse facilities, in certain communities we serve.

Where distribution lines and services and natural gas distribution mains and

Where distribution lines and services and natural gas distribution mains and services occupy private property, we have in some, but not all instances, obtained consents, permits, or easements for these

2024 Form 10-K 43

WEC Energy Group, Inc.

services occupy private property, we have in some, but not all instances, obtained consents, permits, or easements for these installations from the apparent owners or those in possession of those properties, generally without an examination of ownership records or title.

installations from the apparent owners or those in possession of those properties, generally without an examination of ownership records or title.

Steam Facilities

7 unchanged sentences

Bluewater provides natural gas storage and hub services primarily to WE, WPS, and WG.

WECI has ownership interests in eight wind generating facilities and one solar generating facility.

For more information on recent and pending renewable facility acquisitions, see Note 2, Acquisitions.

WECI has ownership interests in eight wind and four solar generating facilities.

For more information on recent renewable facility acquisitions, see Note 2, Acquisitions.

The following table summarizes information on WECI's renewable generating facilities as of December 31, 2024:

2 unchanged sentences

Renewable generating facilities

Delilah I Lamar, Franklin, Hopkins and Red River Counties, Texas

90.0 % 410 300.0

Thunderhead Antelope and Wheeler Counties, Nebraska 90.0 % 108 299.3

2 unchanged sentences

90.0 % 64 259.8

Maple Flats Clay County, Illinois 90.0 % 343 250.0

Lamar, Franklin, Hopkins and Red River Counties, Texas

90.0 % 340 250.0

Upstream Antelope County, Nebraska 90.0 % 81 202.5

4 unchanged sentences

Total renewable generating facilities

(1) Invenergy Wind LLC operates these renewable facilities.

1,658 2,404.2

(1) Invenergy Services LLC operates these renewable facilities.

(2) Nameplate capacity is the amount of energy a source should produce under optimal conditions, such as optimal wind speeds or solar irradiance.

(3) In January 2024, WECI acquired an additional 10% ownership interest in Samson I.

In February 2025, WECI completed the acquisition of a 90% ownership interest in Hardin III, a 250 MW wind generating facility in Hardin County, Ohio.

2024 Form 10-K 44

1 unchanged sentence

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-K

Item 2. Properties