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WEC ENERGY GROUP, INC.

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

View on SEC.gov

About this filing

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$115.87-2.1%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-Q

Period ended 2025-03-31; filed 2025-05-07.

0000107815-25-000182

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Current report: 10-Q

Period ended 2025-06-30; filed 2025-08-01.

0000783325-25-000030

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 313 previous paragraphs and 421 current paragraphs.

183 unchanged; 96 reworded; 92 added; 25 removed; 9 previous and 50 current paragraphs rearranged.

Tables are not compared: 52 previous and 85 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (92)

Current report

•A $9.2 million increase in the net loss attributed to common shareholders at the corporate and other segment, driven by higher interest expense primarily due to the impact of long-term debt issuances at WEC Energy Group.

Current report

Gross margin (GAAP) at the Wisconsin segment increased $71.0 million during the second quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $112.8 million during the second quarter of 2025, compared with the same quarter in 2024. Both measures were driven by:

Current report

•A $21.9 million increase in depreciation and amortization expense;

Current report

•A $6.3 million increase in electric and natural gas distribution expenses.

Current report

Other operating expenses at the Wisconsin segment increased $48.3 million during the second quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in other operating expenses were:

Current report

•A $21.9 million increase in depreciation and amortization expense, driven by assets being placed into service as we continue to execute on our capital plan.

Current report

•A $9.5 million increase in regulatory amortizations and other pass through expenses, as discussed in the notes under the other operation and maintenance table above.

Current report

average short-term debt balances, lower short-term debt interest rates, and higher AFUDC-Debt due to continued capital investment.

Current report

The Illinois segment's contribution to net income attributed to common shareholders was $22.6 million during the second quarter of 2025, representing a $3.1 million, or 12.1%, decrease in earnings over the same quarter in 2024. The lower earnings were driven by higher operating expenses, largely due to an increase in costs associated with maintenance at the Manlove Gas Storage Field.

Current report

Gross margin (GAAP) at the Illinois segment decreased $3.4 million during the second quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $6.1 million during the second quarter of 2025, compared with the same quarter in 2024. Both measures were impacted by a $6.7 million increase in revenues associated with certain riders that are offset in other operation and maintenance and therefore do not have a significant impact on net income.

Current report

Additionally, the decrease in gross margin (GAAP) as compared with the increase in utility margin (non-GAAP), was driven by the following items that are further described in Other Operating Expenses below:

Current report

•A $4.8 million increase in costs associated with maintenance at the Manlove Gas Storage Field;

Current report

•A $1.2 million increase in property and revenue taxes; and

Current report

•A $1.1 million increase in depreciation and amortization.

Current report

•A $4.8 million increase in costs associated with maintenance at the Manlove Gas Storage Field.

Current report

•A $1.2 million increase in property and revenue taxes, driven by higher use taxes.

Current report

•A $1.1 million increase in depreciation and amortization, driven by assets being placed into service as we continue to execute on our capital plan.

Current report

These increases in operating expenses were partially offset by a $2.2 million pre-tax gain on the renegotiation of a lease contract during the second quarter of 2025.

Current report

Interest expense at the Illinois segment decreased $1.4 million during the second quarter of 2025, compared with the same quarter in 2024, due to lower average short-term debt balances, lower short-term debt interest rates, and the impact of a series of PGL's first mortgage bonds maturing in November 2024.

Current report

The other states segment's net income attributed to common shareholders was $3.5 million during the second quarter of 2025, representing a $2.9 million, or 483.3%, increase over the same quarter in 2024. The increase was driven by higher margins related to positive impacts from MGU's approved rate increase that was effective January 1, 2025 and MERC's rate increase that was effective March 1, 2024.

Current report

Gross margin (GAAP) increased $3.6 million during the second quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $5.1 million during the second quarter of 2025, compared with the same quarter in 2024. Both measures were driven by:

Current report

Additionally, the lower increase in gross margin (GAAP) as compared to the increase in utility margin (non-GAAP), was driven by a $0.8 million increase in depreciation and amortization expense that is further described in Other Operating Expenses below.

Current report

Other operating expenses at the other states segment increased $0.6 million during the second quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in operating expenses were:

Current report

These increases in other operating expenses were partially offset by a $1.4 million decrease in bad debt expense, primarily due to an increase in MGU's reserve in 2024 due to aging arrears.

Current report

Interest expense at the other states segment increased $0.7 million during the second quarter of 2025, compared with the same quarter in 2024, driven by the impact of MERC issuing long-term debt in April 2025 and MGU issuing long-term debt in October 2024 and April 2025.

Current report

Income tax expense at the other states segment increased $0.9 million during the second quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income.

Current report

Equity in earnings of transmission affiliates increased $5.1 million during the second quarter of 2025, compared with the same quarter in 2024. This increase was primarily due to continued capital investment by ATC.

Current report

Income tax expense at the electric transmission segment increased $0.9 million during the second quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income.

Current report

•A $15.2 million negative impact related to the receipt of performance payments in 2024.

Current report

•An $11.6 million impairment loss recorded at our Samson I and Delilah I solar facilities related to damage incurred associated with various storms. See Note 6, Property, Plant, and Equipment, for more information.

Current report

•A $5.2 million increase in operation and maintenance expenses due primarily to a higher number of equipment repairs at our renewable generation facilities.

Current report

These decreases in operating income were partially offset by a $9.1 million increase in operating income from new investments in several WECI renewable generation facilities made in late 2024 and early 2025.

Current report

Income tax expense at the corporate and other segment decreased $4.8 million during the second quarter of 2025, compared with the same quarter in 2024. This decrease was driven by a higher pre-tax loss.

Current report

Earnings increased $136.0 million during the six months ended June 30, 2025, compared with the same period in 2024. The significant factors impacting the $136.0 million increase in earnings were:

Current report

•A $17.2 million increase in the net loss attributed to common shareholders at the corporate and other segment, driven by higher interest expense and a decrease in earnings from our equity method investments in technology and energy-focused investment funds. These decreases in earnings were partially offset by a positive impact from an increase in an interim income tax benefit recorded to adjust consolidated income tax expense to the projected, annualized consolidated effective income tax rate.

Showing the first 40 of 92 passages. Open the source sections for the rest.

Removed paragraphs (25)

Previous report

We have announced goals to achieve reductions in carbon emissions from our electric generation fleet by 60% by the end of 2025 and by 80% by the end of 2030, both from a 2005 baseline. We expect to achieve these goals by continuing to make operating refinements, retiring less efficient generating units, and executing our capital plan. Over the longer term, the target for our generation fleet is to be net carbon neutral by 2050.

Previous report

Earnings increased $101.9 million during the first quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the $101.9 million increase in earnings were:

Previous report

Gross margin (GAAP) at the Wisconsin segment increased $129.0 million during the first quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $163.3 million during the first quarter of 2025, compared with the same quarter in 2024. Both measures were driven by:

Previous report

•A $19.0 million increase in depreciation and amortization expense;

Previous report

•A $6.8 million increase in electric and natural gas distribution expenses.

Previous report

Other operating expenses at the Wisconsin segment increased $42.9 million during the first quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in other operating expenses were:

Previous report

•A $19.0 million increase in depreciation and amortization expense, driven by assets being placed into service as we continue to execute on our capital plan.

Previous report

Gross margin (GAAP) at the Illinois segment increased $21.9 million during the first quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $28.8 million during the first quarter of 2025, compared with the same quarter in 2024. Both measures were driven by:

Previous report

•A $2.3 million increase in property and revenue taxes; and

Previous report

Interest expense at the Illinois segment decreased $1.8 million during the first quarter of 2025, compared with the same quarter in 2024, due primarily to lower average short-term debt balances and lower short-term debt interest rates.

Previous report

Gross margin (GAAP) increased $12.3 million during the first quarter of 2025, compared with the same quarter in 2024, and utility margin (non-GAAP) increased $15.7 million during the first quarter of 2025, compared with the same quarter in 2024. Both measures were driven by:

Previous report

•A $2.3 million increase in natural gas operations and customer services expense.

Previous report

Other operating expenses at the other states segment increased $9.2 million during the first quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in operating expenses were:

Previous report

Interest expense at the other states segment increased $0.3 million during the first quarter of 2025, compared with the same quarter in 2024, driven by the impact of MGU issuing long-term debt in October 2024 and higher average short-term debt balances.

Previous report

Income tax expense at the other states segment increased $1.8 million during the first quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income.

Previous report

Income tax expense at the electric transmission segment increased $2.0 million during the first quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income.

Previous report

•A $2.0 million improvement in revenue related to lower congestion related costs.

Previous report

•A $1.7 million increase in PPA revenue resulting from increased generation driven by higher wind speeds.

Previous report

Net cash related to financing activities increased $516.9 million during the first quarter of 2025, compared with the same quarter in 2024, driven by:
Reworded paragraphs (96)

Previous wording

We are a diversified holding company with natural gas and electric utility operations (serving customers in Wisconsin, Illinois, Michigan, and Minnesota), an approximately 60% equity ownership interest in ATC (a for-profit electric transmission company regulated by FERC and certain state regulatory commissions), and non-utility energy infrastructure operations through We Power (which owns generation assets in Wisconsin that it leases to WE), Bluewater (which owns underground natural gas storage facilities in Michigan), and WECI, which holds ownership interests in several renewable generating facilities.

Current wording

We are a diversified holding company with natural gas and electric utility operations (serving customers in Wisconsin, Illinois, Michigan, and Minnesota), an approximately 60% equity ownership interest in ATC (a for-profit electric transmission company regulated by the FERC and certain state regulatory commissions), and non-utility energy infrastructure operations through We Power (which owns generation assets in Wisconsin that it leases to WE), Bluewater (which owns underground natural gas storage facilities in Michigan), and WECI, which holds ownership interests in several renewable generating facilities.

Previous wording

As part of our path toward these goals, we have started implementing co-firing with natural gas at the ERGS coal-fired units and plan to begin testing co-firing with natural gas at Weston Unit 4 in 2025. By the end of 2030, we expect to use coal as a backup fuel only and to be in a position to eliminate coal as an energy source by the end of 2032.

Current wording

In the third quarter of 2025, we made a decision to reconsider our near-term CO 2 emission reduction goals due to a combination of factors, including tightened energy supply requirements in the Midwest power market and the need to serve our customers with safe, reliable, and affordable energy. However, our long-term goal to achieve net carbon neutral electric generation by 2050 remains intact. We expect to achieve this goal by continuing to make operating refinements, retiring less efficient generating units, and executing our capital plan. As part of our path toward this goal, we have started implementing co-firing with natural gas at the ERGS coal-fired units and plan to begin testing co-firing with natural gas at Weston Unit 4 in 2025. We expect to use coal only as a backup fuel by the end of 2030 and to be in a position to eliminate coal as an energy source by the end of 2032.

Previous wording

In December 2018, WE received approval from the PSCW for two renewable energy pilot programs. The Solar Now pilot is expected to add a total of 35 MWs of solar generation to WE's portfolio, allowing non-profit and governmental entities, as well as commercial and industrial customers, to site utility owned solar arrays on their property. Under this program, WE has energized 30 Solar Now projects, totaling more than 30 MWs. The second program, the DRER pilot, is designed to allow large commercial and industrial customers to access renewable resources that WE would operate. The DRER pilot is intended to help these larger customers meet their sustainability and renewable energy goals, and could add up to 35 MWs of renewables to WE's portfolio. WE has signed up one customer under this program for 4 MWs of generation capacity. In July 2023, the PSCW approved the Renewable Pathway Pilot, the third renewable energy program. This program allows WE and WPS commercial and industrial customers to subscribe to a portion of a utility-scale Wisconsin-based renewable energy generating facility for up to 125 MWs at WE and 40 MWs at WPS. Under this program, WE and WPS have collectively signed up nine customers, for a total of approximately 51 MWs of generation capacity.

Current wording

In December 2018, WE received approval from the PSCW for two renewable energy pilot programs. The Solar Now pilot is expected to add a total of 35 MWs of solar generation to WE's portfolio, allowing non-profit and governmental entities, as well as commercial and industrial customers, to site utility owned solar arrays on their property. Under this program, WE has energized 30 Solar Now projects, totaling more than 30 MWs. The second program, the DRER pilot, is designed to allow large commercial and industrial customers to access renewable resources that WE would operate. The DRER pilot is intended to help these larger customers meet their sustainability and renewable energy goals, and could add up to 35 MWs of renewables to WE's portfolio. WE has signed up one customer under this program for 4 MWs of generation capacity. In July 2023, the PSCW approved the Renewable Pathway Pilot, the third renewable energy program. This program allows WE and WPS commercial and industrial customers to subscribe to a portion of a utility-scale Wisconsin-based renewable energy generating facility for up to 125 MWs at WE and 40 MWs at WPS. Under this program, WE and WPS have collectively signed up ten customers, for a total of approximately 52 MWs of generation capacity.

Previous wording

We also continue to focus on methane emission reductions by improving our natural gas distribution system. We set a target across our natural gas distribution operations to achieve net-zero methane emissions by the end of 2030. We plan to achieve our net-zero goal through an effort that includes continuous operational improvements and equipment upgrades, as well as the use of RNG throughout our natural gas utility systems. In 2022, we received approval from the PSCW for our RNG pilots and in 2023, we began transporting the output of local dairy farms onto our natural gas distribution systems in Wisconsin. The RNG supplied is expected to directly replace higher-emission methane from natural gas that would have entered our pipes. We currently have contracts in place for 2.1 Bcf of RNG. In addition, subject to regulatory approval and market conditions, we expect to procure RTCs.

Current wording

We also continue to focus on methane emission reductions by improving and upgrading our natural gas distribution systems, and using RNG throughout our natural gas utility systems. In 2022, we received approval from the PSCW for our RNG pilots and in 2023, we began transporting the output of local dairy farms onto our natural gas distribution systems in Wisconsin. The RNG supplied is expected to directly replace higher-emission methane from natural gas that would have entered our pipes. We currently have contracts in place for 2.1 Bcf of RNG. In light of our progress, significant uncertainty surrounding the market for renewable thermal credits, and our desire to focus on long-term GHG emissions-reduction across the enterprise, in the third quarter of 2025, we made a decision to reassess our previous, standalone goal related to methane emissions from natural gas distribution.

Previous wording

•In April 2024, WE filed a request with the PSCW to construct an LNG facility with a storage capacity of two Bcf, which would be located on the OCPP site. In addition, the construction of additional LNG facilities in Wisconsin has been proposed as part of our capital plan and would provide another approximately four Bcf of natural gas supply. The LNG facilities are expected to reduce the likelihood of constraints on our natural gas distribution system during the highest demand days of winter.

Current wording

•On July 17, 2025, the PSCW verbally approved WE's request to construct an LNG facility with a storage capacity of two Bcf, which will be located on the OCPP site. In addition, the construction of additional LNG facilities in Wisconsin has been proposed as part of our capital plan and would provide another approximately four Bcf of natural gas supply. The LNG facilities are expected to reduce the likelihood of constraints on our natural gas distribution system during the highest demand days of winter.

Previous wording

On February 20, 2025, the ICC issued an order setting expectations for PGL's prospective replacement of its aging natural gas infrastructure. The ICC directed us to focus on replacing all cast and ductile iron pipe that has a diameter of less than 36 inches by January 1, 2035. PGL will replace this cast and ductile iron pipe through its PRP. For more information, see Note 23, Regulatory Environment, and Factors Affecting Results, Liquidity, and Capital Resources - Regulatory, Legislative, and Legal Matters - Illinois Proceedings.

Current wording

In February 2025, the ICC issued an order setting expectations for PGL's prospective replacement of its aging natural gas infrastructure. The ICC directed us to focus on replacing all cast and ductile iron pipe that has a diameter of less than 36 inches by January 1, 2035. PGL will replace this cast and ductile iron pipe through its PRP. For more information, see Note 23, Regulatory Environment, and Factors Affecting Results, Liquidity, and Capital Resources - Regulatory, Legislative, and Legal Matters - Illinois Proceedings.

Previous wording

We continue to focus on integrating the resources of all our businesses and finding the best and most efficient processes.

Current wording

We continue to focus on integrating the resources of all our businesses and improving our business processes to find the best and most efficient processes possible. We expect these efforts to continue to drive operational efficiency and to put us in a position to effectively support plans for future growth.

Previous wording

The following table compares our consolidated results for the first quarter of 2025 with the first quarter of 2024, including favorable or better, "B", and unfavorable or worse, "W", variances:

Current wording

The following table compares our consolidated results for the second quarter of 2025 with the second quarter of 2024, including favorable or better, "B", and unfavorable or worse, "W", variances:

Previous wording

•A $93.5 million increase in net income attributed to common shareholders at the Wisconsin segment, driven by higher margins from the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025, and higher retail sales volumes. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders. These positive impacts were partially offset by higher operating expenses, primarily due to increases in depreciation and amortization expense and transmission expense.

Current wording

Earnings increased $34.1 million during the second quarter of 2025, compared with the same quarter in 2024. The $34.1 million increase in earnings was driven by a $50.3 million increase in net income attributed to common shareholders at the Wisconsin segment, primarily due to higher margins from the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025, and higher retail sales volumes. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders. These positive impacts were partially offset by higher operating expenses, primarily due to increases in depreciation and amortization expense, transmission expense, and regulatory amortizations.

Previous wording

•A $14.5 million increase in net income attributed to common shareholders at the non-utility energy infrastructure segment, driven by an increase in PTCs from our non-utility renewable generating facilities and higher operating income at WECI.

Current wording

•An $11.0 million decrease in net income attributed to common shareholders at the non-utility energy infrastructure segment, driven by lower operating income at WECI. An increase in PTCs from our non-utility renewable generating facilities partially offset the lower operating income.

Previous wording

The Wisconsin segment's contribution to net income attributed to common shareholders was $359.9 million during the first quarter of 2025, representing a $93.5 million, or 35.1%, increase over the same quarter in 2024. The increase in earnings was driven by higher margins from the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025, and higher retail sales volumes. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders. These positive impacts were partially offset by higher operating expenses, primarily due to increases in depreciation and amortization expense and transmission expense.

Current wording

The Wisconsin segment's contribution to net income attributed to common shareholders was $182.4 million during the second quarter of 2025, representing a $50.3 million, or 38.1%, increase over the same quarter in 2024. The increase in earnings was driven by higher margins from the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025, and higher retail sales volumes. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders. These positive impacts were partially offset by higher operating expenses, primarily due to increases in depreciation and amortization expense, transmission expense, and regulatory amortizations.

Previous wording

(1)Represents transmission expense that our electric utilities are authorized to collect in rates. The PSCW has approved escrow accounting for ATC and MISO network transmission expenses for WE and WPS. As a result, WE and WPS defer as a regulatory asset or liability, the difference between actual transmission costs and those included in rates until recovery or refund is authorized in a future rate proceeding. During the first quarter of 2025 and 2024, $149.0 million and $137.8 million, respectively, of costs were billed to our electric utilities by transmission providers.

Current wording

(1)Represents transmission expense that our electric utilities are authorized to collect in rates. The PSCW has approved escrow accounting for ATC and MISO network transmission expenses for WE and WPS. As a result, WE and WPS defer as a regulatory asset or liability, the difference between actual transmission costs and those included in rates until recovery or refund is authorized in a future rate proceeding. During the second quarter of 2025 and 2024, $159.9 million and $140.0 million, respectively, of costs were billed to our electric utilities by transmission providers.

Previous wording

(3)Represents costs associated with the We Power generation units, including operating and maintenance costs recognized by WE. During the first quarter of 2025 and 2024, $27.1 million and $29.5 million, respectively, of costs were billed to or incurred by WE related to the We Power generation units, with the difference in costs billed or incurred and expenses recognized, either deferred or deducted from the regulatory asset.

Current wording

(3)Represents costs associated with the We Power generation units, including operating and maintenance costs recognized by WE. During the second quarter of 2025 and 2024, $32.9 million and $29.3 million, respectively, of costs were billed to or incurred by WE related to the We Power generation units, with the difference in costs billed or incurred and expenses recognized, either deferred or deducted from the regulatory asset.

Previous wording

•A $109.4 million increase in margins driven by the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders.

Current wording

•An $87.9 million increase in margins driven by the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025. See Note 26, Regulatory Environment, in our 2024 Annual Report on Form 10-K, for more information on the 2025 rate orders.

Previous wording

•A $64.2 million increase in margins related to higher retail sales volumes, driven by the impact of colder winter weather during the first quarter of 2025, compared with the same quarter in 2024. As measured by heating degree days, the first quarter of 2025 was 21.5% and 16.1% colder than the same quarter in 2024 in the Milwaukee area and Green Bay area, respectively.

Current wording

•A $19.6 million increase in margins related to higher retail sales volumes, driven by the impact of colder spring weather during the second quarter of 2025, compared with the same quarter in 2024. As measured by heating degree days, the second quarter of 2025 was 60.5% and 16.8% colder than the same quarter in 2024 in the Milwaukee area and Green Bay area, respectively.

Previous wording

•A $6.8 million increase in electric and natural gas distribution expenses, driven by higher costs to maintain the distribution system during the first quarter of 2025, compared with the same quarter in 2024.

Current wording

•A $6.3 million increase in electric and natural gas distribution expenses, driven by higher costs to maintain the distribution systems during the second quarter of 2025, compared with the same quarter in 2024.

Previous wording

Other income, net at the Wisconsin segment decreased $15.8 million during the first quarter of 2025, compared with the same quarter in 2024, driven by a $22.5 million negative impact from the non-service components of our net periodic pension and OPEB costs. See Note 16, Employee Benefits, for more information on our benefit costs. This decrease was partially offset by a $4.3 million positive impact from higher AFUDC-Equity due to continued capital investment and a $1.5 million increase in interest income.

Current wording

Other income, net at the Wisconsin segment decreased $12.5 million during the second quarter of 2025, compared with the same quarter in 2024, driven by a $21.5 million negative impact from the non-service components of our net periodic pension and OPEB costs. See Note 16, Employee Benefits, for more information on our benefit costs. This decrease was partially offset by an $8.9 million positive impact from higher AFUDC-Equity due to continued capital investment.

Previous wording

Interest expense at the Wisconsin segment increased $4.0 million during the first quarter of 2025, compared with the same quarter in 2024, driven by the impact of WE, WPS, and WG issuing long-term debt in 2024. Partially offsetting the increase was lower average short-term debt balances and lower short-term debt interest rates.

Current wording

Interest expense at the Wisconsin segment increased $0.6 million during the second quarter of 2025, compared with the same quarter in 2024, driven by the impact of WE, WPS, and WG issuing long-term debt in 2024. Partially offsetting the increase was lower

Previous wording

Income tax expense at the Wisconsin segment increased $7.1 million during the first quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income. Partially offsetting this increase was an increase in PTCs and the increased benefit from the flow through of tax repairs in connection with the Wisconsin rate orders approved by the PSCW, effective January 1, 2025.

Current wording

Income tax expense at the Wisconsin segment increased $1.1 million during the second quarter of 2025, compared with the same quarter in 2024, driven by higher pre-tax income. Partially offsetting this increase was an increase in PTCs, an increase in income tax benefits associated with AFUDC-Equity, driven by continued capital investment, and the increased benefit from the flow through of tax repairs in connection with the Wisconsin rate orders approved by the PSCW, effective January 1, 2025.

Previous wording

Other operating expenses at the Illinois segment increased $18.3 million, net of the $24.8 million impact of the riders referenced in the table above, during the first quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in other operating expenses were:

Current wording

Other operating expenses at the Illinois segment increased $5.4 million, net of the $6.7 million impact of the riders referenced in the table above, during the second quarter of 2025, compared with the same quarter in 2024. The significant factors impacting the increase in other operating expenses were:

Previous wording

•A $2.2 million increase in natural gas distribution and maintenance costs, primarily related to maintaining the natural gas infrastructure.

Current wording

•A $1.5 million increase in natural gas distribution and maintenance costs, primarily related to maintaining the natural gas infrastructure.

Previous wording

Income tax expense at the Illinois segment decreased $2.9 million during the first quarter of 2025, compared with the same quarter in 2024, driven by a decrease in pre-tax income.

Current wording

Income tax expense at the Illinois segment decreased $1.5 million during the second quarter of 2025, compared with the same quarter in 2024, driven by a decrease in pre-tax income.

Previous wording

•A $4.4 million increase related to MERC's rate increase that was effective March 1, 2024 and MGU's approved rate increase that was effective January 1, 2025.

Current wording

•A $3.2 million increase related to MGU's approved rate increase that was effective January 1, 2025, and MERC's rate increase that was effective March 1, 2024.

Previous wording

•A $2.6 million increase related to MERC CIP revenue, which was offset in operation and maintenance expense. Rebates and programs are available to residential and commercial customers of MERC through the CIP, which is funded by rate payers using the Conservation Cost Recovery Charge and the Conservation Cost Recovery Adjustment funds that are collected on their monthly billing statements.

Current wording

•A $0.8 million increase related to MERC CIP revenue, which was offset in operation and maintenance expense. Rebates and programs are available to residential and commercial customers of MERC through the CIP, which is funded by rate payers using the Conservation Cost Recovery Charge and the Conservation Cost Recovery Adjustment funds that are collected on their monthly billing statements.

Previous wording

•A $2.6 million increase in operation and maintenance expense related to MERC's CIP program, which has an offsetting increase in margins.

Current wording

•A $0.8 million increase in operation and maintenance expense related to MERC's CIP program, which has an offsetting increase in margins.

Previous wording

Operating income at the non-utility energy infrastructure segment increased $9.1 million during the first quarter of 2025, compared with the same quarter in 2024, driven by these items at WECI:

Current wording

Operating income at the non-utility energy infrastructure segment decreased $23.9 million during the second quarter of 2025, compared with the same quarter in 2024, driven by these items at WECI:

Previous wording

Interest expense at the non-utility energy infrastructure segment increased $6.5 million during the first quarter of 2025, compared with the same quarter in 2024, driven by the impact of WECI Energy Holding III issuing long-term debt in December 2024.

Current wording

Interest expense at the non-utility energy infrastructure segment increased $7.4 million during the second quarter of 2025, compared with the same quarter in 2024, driven by the impact of WECI Energy Holding III issuing long-term debt in December 2024.

Previous wording

The income tax benefit at the non-utility energy infrastructure segment increased $12.2 million during the first quarter of 2025, compared with the same quarter in 2024, due to an increase in PTCs that was related to the acquisition of additional renewable generation facilities, an IRS approved PTC rate increase, and higher production volumes, partially offset by higher pre-tax income.

Current wording

The income tax benefit at the non-utility energy infrastructure segment increased $18.7 million during the second quarter of 2025, compared with the same quarter in 2024, due to an increase in PTCs that was related to the acquisition of additional renewable generation facilities and an IRS approved PTC rate increase, partially offset by lower production volumes. Also contributing to the favorable income tax variance was lower pre-tax income.

Previous wording

Interest expense at the corporate and other segment increased $20.3 million during the first quarter of 2025, compared with the same quarter in 2024, due to the impact of long-term debt issuances by WEC Energy Group in 2024. Partially offsetting this increase in interest expense were lower average short-term debt balances and lower average short-term interest rates.

Current wording

Interest expense at the corporate and other segment increased $12.0 million during the second quarter of 2025, compared with the same quarter in 2024, due to the impact of long-term debt issuances by WEC Energy Group in June 2024, December 2024, and June 2025. Partially offsetting this increase in interest expense was lower average short-term debt balances and lower average short-term interest rates.

Previous wording

These increases in earnings were partially offset by a $9.4 million decrease in earnings at the Illinois segment, driven by higher operating expenses. The quarter-over-quarter impact from a favorable settlement of a legal claim during 2024, along with higher property and revenue taxes, an increase in natural gas distribution and maintenance costs, and higher benefit costs in the first quarter of 2025, all contributed to the increase in operating expenses.

Current wording

•A $12.5 million decrease in net income attributed to common shareholders at the Illinois segment, driven by higher operating expenses. The period-over-period impact from a favorable settlement of a legal claim during 2024 and an increase in costs associated with maintenance at the Manlove Gas Storage Field drove the higher operating expenses.

Previous wording

We expect our 2025 annual effective tax rate to be between 6.5% and 7.5%. Our effective tax rate calculations are revised every quarter based on the best available year-end tax assumptions, adjusted in the following year after returns are filed. Tax accrual estimates are trued-up to the actual amounts claimed on the tax returns and further adjusted after examinations by taxing authorities, as needed.

Current wording

We expect our 2025 annual effective tax rate to be between 7.5% and 8.5%. Our effective tax rate calculations are revised every quarter based on the best available year-end tax assumptions, adjusted in the following year after returns are filed. Tax accrual estimates are trued-up to the actual amounts claimed on the tax returns and further adjusted after examinations by taxing authorities, as needed.

Previous wording

These increases in margins were partially offset by a $9.3 million quarter-over-quarter negative impact from collections of fuel and purchased power costs. Under the Wisconsin fuel rules, the margins of our electric utilities are impacted by under- or over-collections of certain fuel and purchased power costs that are within a 2% price variance from the costs included in rates, and the remaining variance above or below the 2% is generally deferred for either future recovery from or refund to customers.

Current wording

These increases in margins were partially offset by a $5.6 million period-over-period negative impact from collections of fuel and purchased power costs. Under the Wisconsin fuel rules, the margins of our electric utilities are impacted by under- or over-collections of certain fuel and purchased power costs that are within a 2% price variance from the costs included in rates, and the remaining variance above or below the 2% is generally deferred for either future recovery from or refund to customers.

Previous wording

•A $10.1 million increase in transmission expense as approved by the PSCW in our Wisconsin rate orders, effective January 1, 2025. See the notes under the other operation and maintenance table above for more information.

Current wording

•A $21.4 million increase in transmission expense as approved by the PSCW in our Wisconsin rate orders, effective January 1, 2025. See the notes under the other operation and maintenance table above for more information.

Previous wording

The Illinois segment's contribution to net income attributed to common shareholders was $178.1 million during the first quarter of 2025, representing a $9.4 million, or 5.0%, decrease in earnings over the same quarter in 2024. The lower earnings were driven by higher operating expenses. The quarter-over-quarter impact from a favorable settlement of a legal claim during 2024, along with higher property and revenue taxes, an increase in natural gas distribution and maintenance costs, and higher benefit costs in the first quarter of 2025, all contributed to the increase in operating expenses.

Current wording

The Illinois segment's contribution to net income attributed to common shareholders was $200.7 million during the six months ended June 30, 2025, representing a $12.5 million, or 5.9%, decrease over the same period in 2024. The decrease was driven by higher operating expenses, primarily due to the period-over-period impact from a favorable settlement of a legal claim during 2024 and an increase in costs associated with maintenance at the Manlove Gas Storage Field.

Previous wording

•A $24.8 million increase in revenues associated with certain riders that are offset in other operation and maintenance and therefore do not have a significant impact on net income.

Current wording

•A $31.5 million increase in revenues associated with certain riders that are offset in other operation and maintenance and therefore do not have a significant impact on net income.

Previous wording

•A $2.3 million increase in revenues related to the impact of the NSG rate order issued by the ICC, effective February 1, 2024.

Current wording

•A $2.2 million increase in revenues related to the impact of the NSG rate order issued by the ICC, effective February 1, 2024.

Previous wording

•A $12.4 million increase in expense primarily associated with the favorable settlement of a legal claim during the first quarter of 2024.

Current wording

•An $11.6 million increase in expense primarily associated with the favorable settlement of a legal claim during the six months ended June 30, 2024.

Previous wording

•A $2.3 million increase in property and revenue taxes, driven by an increase in the invested capital tax and property taxes.

Current wording

•A $3.5 million increase in property and revenue taxes, driven by an increase in property taxes and use taxes.

Previous wording

•A $3.7 million increase in benefit costs, primarily driven by higher stock-based compensation and deferred compensation expense.

Current wording

•A $2.0 million increase in benefit costs, driven by higher stock-based compensation and deferred compensation expense.

Previous wording

The other states segment's net income attributed to common shareholders was $43.1 million during the first quarter of 2025, representing a $4.5 million, or 11.7%, increase over the same quarter in 2024. The increase was driven by higher margins related to an increase in sales volumes and positive impacts from MERC's rate increase that was effective March 1, 2024 and MGU's approved rate increase that was effective January 1, 2025. These increases in earnings were partially offset by higher bad debt expense and higher natural gas operations and customer services expense.

Current wording

The other states segment's contribution to net income attributed to common shareholders was $46.6 million during the six months ended June 30, 2025, representing a $7.4 million, or 18.9%, increase over the same period in 2024. The increase was driven by higher margins related to positive impacts from MGU's rate increase that was effective January 1, 2025, MERC's rate increase that was effective March 1, 2024, and an increase in retail sales volumes. These increases in earnings were partially offset by higher operating expenses.

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Current report — wording carried from elsewhere

•A $3.7 million quarter-over-quarter positive impact from collections of fuel and purchased power costs. Under the Wisconsin fuel rules, the margins of our electric utilities are impacted by under- or over-collections of certain fuel and purchased power costs that are within a 2% price variance from the costs included in rates, and the remaining variance above or below the 2% is generally deferred for either future recovery from or refund to customers.

Current report — wording carried from elsewhere

•An $11.3 million increase in transmission expense as approved by the PSCW in our Wisconsin rate orders, effective January 1, 2025. See the notes under the other operation and maintenance table above for more information.

Current report — wording carried from elsewhere

•A $1.5 million increase in natural gas distribution and maintenance costs;

Current report — wording carried from elsewhere

The following table compares our consolidated results for the six months ended June 30, 2025 with the six months ended June 30, 2024, including favorable or better, "B", and unfavorable or worse, "W", variances:

Current report — wording carried from elsewhere

•A $143.8 million increase in net income attributed to common shareholders at the Wisconsin segment, driven by higher margins from the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025, and higher retail sales volumes. These positive impacts were partially offset by higher operating expenses, primarily due to increases in depreciation and amortization expense and transmission expense.

Current report — wording carried from elsewhere

•An $11.0 million increase in net income attributed to common shareholders at the electric transmission segment, driven by continued capital investment by ATC and a gain related to the sale of an investment at ATC Holdco in March 2025.

Current report — wording carried from elsewhere

These increases in earnings were partially offset by:

Current report — wording carried from elsewhere

The discussions below address the contribution of each of our utility segments to net income attributed to common shareholders. The discussions include financial information prepared in accordance with GAAP, as well as utility margin, which is not a measure of financial performance under GAAP. Utility margin (operating revenues less fuel and purchased power costs and cost of natural gas sold) is a non-GAAP financial measure because it excludes certain operation and maintenance expenses applicable to revenues, as well as depreciation and amortization and property and revenue taxes.

Current report — wording carried from elsewhere

We believe that utility margin provides a useful basis for evaluating utility operations since the majority of prudently incurred fuel and purchased power costs, as well as prudently incurred natural gas costs, are passed through to customers in current rates. As a result, management uses utility margin internally when assessing the operating performance of our utility segments as these measures exclude the majority of revenue fluctuations caused by changes in these expenses. Similarly, the presentation of utility margin herein is intended to provide supplemental information for investors regarding our operating performance.

Current report — wording carried from elsewhere

Our utility margin may not be comparable to similar measures presented by other companies. Furthermore, this measure is not intended to replace gross margin as determined in accordance with GAAP as an indicator of operating performance. Each of our three utility segment discussions below include a table that provides the calculation of both gross margin as determined in accordance with GAAP and utility margin, as well as a reconciliation between the two measures.

Current report — wording carried from elsewhere

Wisconsin Segment Contribution to Net Income Attributed to Common Shareholders

Current report — wording carried from elsewhere

(1)Cost of sales includes fuel and purchased power and cost of natural gas sold.

Current report — wording carried from elsewhere

(1)Represents transmission expense that our electric utilities are authorized to collect in rates. The PSCW has approved escrow accounting for ATC and MISO network transmission expenses for WE and WPS. As a result, WE and WPS defer as a regulatory asset or liability, the difference between actual transmission costs and those included in rates until recovery or refund is authorized in a future rate proceeding. During the six months ended June 30, 2025 and 2024, $308.8 million and $277.8 million, respectively, of costs were billed to our electric utilities by transmission providers.

Current report — wording carried from elsewhere

(2)Regulatory amortizations and other pass through expenses are substantially offset in margins and therefore do not have a significant impact on net income.

Current report — wording carried from elsewhere

(3)Represents costs associated with the We Power generation units, including operating and maintenance costs recognized by WE. During the six months ended June 30, 2025 and 2024, $60.0 million and $58.8 million, respectively, of costs were billed to or incurred by WE related to the We Power generation units, with the difference in costs billed or incurred and expenses recognized, either deferred or deducted from the regulatory asset.

Current report — wording carried from elsewhere

(1)Includes distribution sales for customers who have purchased power from an alternative electric supplier in Michigan.

Current report — wording carried from elsewhere

(1)Normal degree days are based on a 20-year moving average of monthly temperatures from Mitchell International Airport in Milwaukee, Wisconsin.

Current report — wording carried from elsewhere

(2)Normal degree days are based on a 20-year moving average of monthly temperatures from the Green Bay, Wisconsin weather station.

Current report — wording carried from elsewhere

(3)Normal degree days are based on a 20-year moving average of monthly temperatures from the Iron Mountain, Michigan weather station.

Current report — wording carried from elsewhere

The following table summarizes our Wisconsin segment gross margin (GAAP) and reconciles gross margin (GAAP) to utility margin (non-GAAP). See Non-GAAP Financial Measures above for additional information regarding gross margin (GAAP) and utility margin (non-GAAP).

Current report — wording carried from elsewhere

(1)Operating and maintenance expenses deemed to be directly attributable to our revenue-producing activities include plant operating and maintenance expenses related to our generating units; costs associated with the We Power generating units; and transmission, distribution and customer service expenses. These expenses are included in the above table to calculate gross margin as defined under GAAP.

Current report — wording carried from elsewhere

•A $198.8 million increase in margins driven by the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2025.

Current report — wording carried from elsewhere

Other income, net at the Wisconsin segment decreased $28.3 million during the six months ended June 30, 2025, compared with the same period in 2024, driven by a $44.0 million negative impact from the non-service components of our net periodic pension and OPEB costs. This decrease was partially offset by a $13.3 million positive impact from higher AFUDC-Equity due to continued capital investment.

Current report — wording carried from elsewhere

Illinois Segment Contribution to Net Income Attributed to Common Shareholders

Current report — wording carried from elsewhere

Since the majority of PGL and NSG customers use natural gas for heating, net income attributed to common shareholders at the Illinois segment is sensitive to weather and is generally higher during the winter months.

Current report — wording carried from elsewhere

(1)These riders and regulatory amortizations are substantially offset in margins and therefore do not have a significant impact on net income.

Current report — wording carried from elsewhere

(1)Normal heating degree days are based on a 12-year moving average of monthly temperatures from Chicago's O'Hare Airport.

Current report — wording carried from elsewhere

The following table summarizes our Illinois segment gross margin (GAAP) and reconciles gross margin (GAAP) to utility margin (non-GAAP). See Non-GAAP Financial Measures above for additional information regarding gross margin (GAAP) and utility margin (non-GAAP).

Current report — wording carried from elsewhere

(1)Operating and maintenance expenses deemed to be directly attributable to our revenue-producing activities include distribution and customer service expenses. These expenses are included in the above table to calculate gross margin as defined under GAAP.

Current report — wording carried from elsewhere

Additionally, the smaller increase in gross margin (GAAP) as compared with the increase in utility margin (non-GAAP), was driven by the following items that are further described in Other Operating Expenses below:

Current report — wording carried from elsewhere

•A $3.7 million increase in natural gas distribution and maintenance costs;

Current report — wording carried from elsewhere

•A $3.7 million increase in natural gas distribution and maintenance costs, primarily related to maintaining the natural gas infrastructure.

Current report — wording carried from elsewhere

Other States Segment Contribution to Net Income Attributed to Common Shareholders

Current report — wording carried from elsewhere

Since the majority of MERC and MGU customers use natural gas for heating, net income attributed to common shareholders at the other states segment is sensitive to weather and is generally higher during the winter months.

Current report — wording carried from elsewhere

(1)Regulatory amortizations and other pass through expenses are substantially offset in margins and therefore do not have a significant impact on net income.

Current report — wording carried from elsewhere

(1)Normal heating degree days for MERC and MGU are based on a 20-year moving average and 15-year moving average, respectively, of monthly temperatures from various weather stations throughout their respective service territories.

Current report — wording carried from elsewhere

The following table summarizes our other states segment gross margin (GAAP) and reconciles gross margin (GAAP) to utility margin (non-GAAP). See Non-GAAP Financial Measures above for additional information regarding gross margin (GAAP) and utility margin (non-GAAP).

Current report — wording carried from elsewhere

(1)Operating and maintenance expenses deemed to be directly attributable to our revenue-producing activities include distribution and customer service expenses. These expenses are included in the above table to calculate gross margin as defined under GAAP.

Current report — wording carried from elsewhere

•A $3.4 million increase related to MERC CIP revenue, which was offset in operation and maintenance expense.

Current report — wording carried from elsewhere

•A $2.5 million increase in natural gas operations and customer service expense; and

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Previous report — wording carried elsewhere

•A $2.2 million increase in natural gas distribution and maintenance costs.

Previous report — wording carried elsewhere

•A $1.5 million increase in benefit costs, driven by higher costs related to stock-based compensation and deferred compensation expense.

Previous report — wording carried elsewhere

•A $0.8 million increase in depreciation and amortization expense.

Previous report — wording carried elsewhere

authorities, as well as the securities registered under the 1933 Act, are closely monitored and appropriate filings are made to ensure flexibility in the capital markets.

Previous report — wording carried elsewhere

order and the related disallowance. PGL and NSG subsequently petitioned the Illinois Supreme Court seeking review and reversal of the May 2023 order; however, their petition was denied on March 26, 2025.

Previous report — wording carried elsewhere

businesses. In addition, certain buildings and equipment, such as hospitals, commercial kitchens, and back-up generators, would be exempt from the new emission limits.

Previous report — wording carried elsewhere

On April 21, 2025, the DOC announced its final affirmative determinations in its AD/CVD investigations, increasing the preliminary tariff rates, in some cases significantly. These increased rates will become effective if the USITC also issues a final affirmative determination. The USITC’s final determination is anticipated to be issued in June 2025. We are currently evaluating the potential impact, if any, of the increased rates.

Previous report — wording carried elsewhere

technologies, like hydrogen and carbon management, as we continue the transition to a clean energy future to the benefit of our customers, the communities we serve, and our company.

Previous report — wording carried elsewhere

D.C. Circuit Court of Appeals issued the following orders and opinion. The refunds resulting from these orders and opinion are also described below.