Business Context and Reporting Period
This Form 10-K covers the fiscal year ended December 31, 2024, for MGE Energy, Inc. (MGE Energy) and its wholly-owned subsidiary, Madison Gas and Electric Company (MGE). MGE Energy is a holding company operating through five segments: regulated electric utility, regulated gas utility, nonregulated energy operations, transmission investments, and all other. MGE serves approximately 167,000 electric customers and 178,000 gas customers primarily in Dane County and surrounding areas of Wisconsin. The company is a large accelerated filer and is subject to regulation by the Public Service Commission of Wisconsin (PSCW) and the Federal Energy Regulatory Commission (FERC).
Key Financial Metrics
| Metric (in millions) | 2024 | 2023 |
|---|---|---|
| Total Operating Revenues | $676.9 | $690.4 |
| Net Income (MGE Energy) | $120.6 | $117.7 |
| Net Income Attributable to MGE | $89.4 | $90.5 |
| Earnings Per Share (Basic) | $3.33 | $3.25 |
| Cash Provided by Operating Activities | $277.8 | $237.6 |
| Capital Expenditures | $236.9 | $222.1 |
| Long-Term Debt | $763.7 | $718.8 |
| Common Shareholders' Equity | $1,230.1 | $1,140.1 |
Capitalization Ratios (MGE Energy): Common shareholders' equity was 61.5% and long-term debt was 38.5% of total capitalization as of December 31, 2024.
Material Changes Versus Prior Period
- Revenue: Total operating revenues decreased 2.0% to $676.9 million. Electric revenues increased 1.6% due to rate increases and higher market sales, while gas revenues decreased 10.7% primarily due to lower natural gas commodity costs passed through to customers and warmer weather reducing volume.
- Profitability: MGE Energy net income increased 2.5% to $120.6 million. This was driven by increased earnings in nonregulated energy operations and transmission investments, partially offset by lower gas utility earnings due to weather and lower electric utility earnings due to unfavorable weather impacting residential sales.
- Operating Expenses: Consolidated operations and maintenance expenses increased $12.7 million, driven by higher customer accounts costs (collection of deferred bad debt), increased transmission costs, and electric production expenses. Conversely, administrative and general costs decreased due to lower pension service costs.
- Capital Expenditures: Increased 6.7% to $236.9 million, reflecting continued investment in electric and gas utility infrastructure, including renewable energy projects.
Guidance, Outlook, and Management Commentary
Strategic Initiatives and Carbon Reduction
MGE is committed to achieving an 80% carbon reduction by 2030 (from 2005 levels) and net-zero carbon electricity by 2050. Key actions include:
- Coal Transition: Plans to retire the Columbia coal-fired facility by the end of 2029 and transition the Elm Road Units from coal to natural gas by the end of 2032.
- Renewables: Expecting to add approximately 178 MW of solar, 18 MW of wind, and 118 MW of battery storage by the end of 2028. Several projects (Paris, Darien, Koshkonong) are currently under construction or pending approval.
- Gas Distribution: Goal to achieve net-zero methane emissions from the natural gas distribution system by 2035.
Rate Matters
The PSCW approved a 1.54% electric rate increase and a 2.44% gas rate increase effective January 1, 2024. For 2025, a 2.63% electric rate increase and a 1.32% gas rate increase were approved. An earnings sharing mechanism is in place for 2024/2025, requiring refunds to customers if returns exceed the authorized 9.7% ROE by specific thresholds.
Risks and Contingencies
- Regulatory Risk: Uncertainty regarding the recovery of costs associated with environmental compliance and capital projects. The company is monitoring legal challenges to rate orders, though recent appeals were dismissed.
- Supply Chain and Tariffs: Potential disruptions from the Uyghur Forced Labor Protection Act (UFLPA) and new solar tariffs could increase costs or delay renewable projects. The company expects to seek recovery of such costs in future rate proceedings.
- ATC Return on Equity: A FERC ruling in October 2024 reduced the authorized ROE for ATC (in which MGE holds an investment) by 4 basis points, resulting in a reduction of a previously estimated loss reserve.
- Weather: Results remain sensitive to weather conditions, particularly heating degree days for gas and cooling degree days for electric sales.
Investor Verification Checklist
- Rate Case Outcomes: Verify the final status of the 2024/2025 rate order and any potential impacts from the earnings sharing mechanism on future cash flows.
- Capital Project Costs: Monitor the progress and cost recovery status of major renewable projects (Paris, Darien, Koshkonong) given potential supply chain disruptions and tariff impacts.
- Coal Retirement Timeline: Confirm the execution of the Columbia plant retirement (targeted end of 2029) and the Elm Road fuel switch (targeted end of 2032) to assess stranded asset risks.
- ATC Investment Impact: Review the long-term impact of the reduced ROE on the transmission investment segment's earnings contribution.
- Regulatory Asset Recovery: Assess the probability of recovering regulatory assets related to environmental compliance and bad debt expenses in future rate proceedings.