Oglethorpe Power's Net Margin Plunges Amid Soaring Fuel Costs

TL;DR

**Oglethorpe's net margin collapse despite revenue growth is a red flag, signaling deep cost pressures that will likely hit member rates and investor confidence.**

AI Summary

Oglethorpe Power Corporation reported a significant decline in net margin for the three and nine months ended September 30, 2025, compared to the prior year. For the three months, net margin plummeted to $1.878 million from $10.560 million in 2024, an 82.2% decrease. The nine-month net margin also fell to $65.179 million from $76.850 million, a 15.2% reduction. This decline occurred despite a robust increase in total operating revenues, which rose to $631.461 million for the three months (up 16.8%) and $1.942 billion for the nine months (up 18.4%), driven by higher sales to members and non-members. The primary driver for the reduced net margin was a substantial increase in operating expenses, particularly fuel costs, which surged to $224.759 million for the three months (up 47.3%) and $654.244 million for the nine months (up 39.8%). Production expenses also increased significantly. The company's construction work in progress nearly doubled to $726.542 million from $320.167 million at December 31, 2024, indicating substantial ongoing capital projects. Long-term debt remained high at $12.084 billion, and short-term borrowings increased to $251.119 million from $145.604 million.

Why It Matters

This filing reveals Oglethorpe Power's struggle to translate increased revenue into profit, a critical concern for investors. The sharp rise in fuel and production costs, coupled with a significant increase in construction work in progress, suggests potential future rate increases for its 38 electric distribution cooperative members, impacting their competitiveness and end-user electricity prices. For employees, the ongoing capital projects could signal job stability in construction and operations, but financial pressures might lead to cost-cutting measures elsewhere. In the broader market, Oglethorpe's financial health, as a major power provider in Georgia, can influence regional energy stability and pricing, especially given its substantial long-term debt and reliance on capital markets. Competitively, rising costs could put Oglethorpe at a disadvantage against power providers with more diversified or lower-cost generation portfolios.

Risk Assessment

Risk Level: high — The net margin for the three months ended September 30, 2025, decreased by 82.2% to $1.878 million from $10.560 million in the prior year, primarily due to a 47.3% increase in fuel costs to $224.759 million. This significant erosion of profitability, alongside a 78.5% increase in construction work in progress to $726.542 million, indicates substantial capital expenditure risks and vulnerability to commodity price fluctuations, directly impacting financial stability.

Analyst Insight

Investors should exercise caution and closely monitor Oglethorpe Power's future filings for signs of cost containment strategies and successful integration of new generation assets. Given the significant increase in construction work in progress and rising debt, potential impacts on member rates and the company's ability to manage its substantial capital projects without further eroding profitability are key considerations.

Financial Highlights

debt To Equity

N/A

revenue

$631,461K

operating Margin

N/A

total Assets

$16,761,019K

total Debt

$12,476,085K

net Income

$1,878K

eps

N/A

gross Margin

N/A

cash Position

$310,678K

revenue Growth

+16.8%

Revenue Breakdown

Key Numbers

• $1.878M — Net Margin (3 months) (Down 82.2% from $10.560M in Q3 2024)
• $65.179M — Net Margin (9 months) (Down 15.2% from $76.850M in 9M 2024)
• $631.461M — Total Operating Revenues (3 months) (Up 16.8% from $540.670M in Q3 2024)
• $1.942B — Total Operating Revenues (9 months) (Up 18.4% from $1.641B in 9M 2024)
• $224.759M — Fuel Expense (3 months) (Up 47.3% from $152.582M in Q3 2024)
• $654.244M — Fuel Expense (9 months) (Up 39.8% from $468.091M in 9M 2024)
• $726.542M — Construction Work in Progress (Up 127% from $320.167M at Dec 31, 2024)
• $12.084B — Long-term Debt (Slightly down from $12.134B at Dec 31, 2024, but remains substantial)
• $251.119M — Short-term Borrowings (Up 72.5% from $145.604M at Dec 31, 2024)
• $426.435M — Net Cash from Operating Activities (9 months) (Up 39.7% from $305.201M in 9M 2024)

Key Players & Entities

• OGLETHORPE POWER CORPORATION (company) — registrant
• $1.878 million (dollar_amount) — net margin for three months ended September 30, 2025
• $10.560 million (dollar_amount) — net margin for three months ended September 30, 2024
• $65.179 million (dollar_amount) — net margin for nine months ended September 30, 2025
• $76.850 million (dollar_amount) — net margin for nine months ended September 30, 2024
• $631.461 million (dollar_amount) — total operating revenues for three months ended September 30, 2025
• $1.942 billion (dollar_amount) — total operating revenues for nine months ended September 30, 2025
• $224.759 million (dollar_amount) — fuel expense for three months ended September 30, 2025
• $654.244 million (dollar_amount) — fuel expense for nine months ended September 30, 2025
• $726.542 million (dollar_amount) — construction work in progress as of September 30, 2025

FAQ

Risk Factors

• Rising Fuel Costs Impacting Margins [high — financial]: Fuel costs surged by 47.3% to $224.759 million for the three months ended September 30, 2025, and by 39.8% to $654.244 million for the nine months. This significant increase in a key operating expense is a primary driver for the substantial decline in net margin.
• Increased Short-Term Borrowings [medium — financial]: Short-term borrowings increased by 72.5% to $251.119 million from $145.604 million at December 31, 2024. This indicates a greater reliance on short-term financing, potentially increasing financial risk and interest expenses.
• Significant Capital Project Expansion [medium — operational]: Construction work in progress nearly doubled to $726.542 million from $320.167 million at December 31, 2024. While indicative of investment in future capacity, such large-scale projects can introduce execution risks and strain cash flow.
• High Overall Debt Levels [high — financial]: Long-term debt remains substantial at $12.084 billion. While slightly down from $12.134 billion at year-end, the overall debt load represents a significant financial obligation and potential constraint.
• Volatile Energy Market Conditions [high — market]: The company's profitability is sensitive to fluctuations in energy commodity prices, particularly for fuel. The recent surge in fuel costs highlights the impact of market volatility on operating expenses and margins.
• Regulatory Asset Management [medium — regulatory]: The company holds significant regulatory assets ($1.069 billion) and liabilities ($689 million). Changes in regulatory frameworks or the disallowance of costs could materially impact financial performance.

Industry Context

Oglethorpe Power Corporation operates in the highly capital-intensive electric utility sector, specifically as a wholesale power supplier to member cooperatives. The industry faces ongoing challenges related to fuel price volatility, the transition to cleaner energy sources, and significant infrastructure investment requirements. Regulatory oversight is a constant factor influencing operational costs and revenue recovery.

Regulatory Implications

As a regulated entity, Oglethorpe Power's financial performance is heavily influenced by state and federal regulatory bodies. Changes in approved rate structures, fuel cost recovery mechanisms, or environmental regulations can significantly impact profitability and investment decisions. The substantial regulatory assets and liabilities highlight the company's reliance on regulatory approvals for financial stability.

What Investors Should Do

1. Monitor Fuel Cost Trends
2. Analyze Capital Expenditure Plans
3. Assess Debt Management Strategy
4. Evaluate Operating Efficiency Improvements

Glossary

Patronage capital and membership fees

Represents the equity allocated to members of a cooperative, often based on their patronage or usage of services. It's a form of member equity rather than traditional shareholder equity. (This is a key component of Oglethorpe Power's equity structure, reflecting its cooperative nature. An increase suggests retained earnings or capital contributions from members.)

Construction work in progress (CWIP)

Costs incurred for construction projects that are not yet completed or placed into service. These costs include materials, labor, and overhead related to building new facilities or major upgrades. (The near doubling of CWIP indicates significant ongoing capital expenditures, which will impact future depreciation, financing needs, and operational capacity.)

Nuclear fuel, at amortized cost

The cost of nuclear fuel that has been used (amortized) in the operation of nuclear power plants. It represents the remaining value of the fuel inventory. (This line item reflects the ongoing operational costs associated with nuclear power generation, a significant part of Oglethorpe's energy mix.)

Regulatory assets

Costs that have been incurred by a regulated utility but have not yet been recovered through customer rates. These are expected to be recovered in future periods. (Significant regulatory assets suggest that the company has incurred costs that are subject to regulatory approval for future rate recovery, impacting future earnings potential.)

Short-term borrowings

Funds borrowed by the company that are due within one year. This can include lines of credit or other short-term financing instruments. (A substantial increase in short-term borrowings indicates a potentially tighter liquidity position or a need to finance increased working capital or short-term obligations.)

Year-Over-Year Comparison

Compared to the prior year, Oglethorpe Power Corporation reported a significant increase in total operating revenues for both the three-month and nine-month periods ended September 30, 2025, driven by higher sales. However, this revenue growth was overshadowed by a substantial rise in operating expenses, particularly fuel costs, which led to a sharp decline in net margin. The company also shows increased reliance on short-term borrowings and a near doubling of construction work in progress, indicating significant ongoing capital projects and potential shifts in its financial structure.

Filing Documents

• opc-20250930.htm (10-Q) — 1177KB
• exhibit311q325.htm (EX-31.1) — 12KB
• exhibit312q325.htm (EX-31.2) — 12KB
• exhibit321q325.htm (EX-32.1) — 7KB
• exhibit322q325.htm (EX-32.2) — 7KB
• pdf10q.pdf (10-Q) — 408KB
• 0000788816-25-000017.txt ( ) — 8220KB
• opc-20250930.xsd (EX-101.SCH) — 71KB
• opc-20250930_cal.xml (EX-101.CAL) — 117KB
• opc-20250930_def.xml (EX-101.DEF) — 208KB
• opc-20250930_lab.xml (EX-101.LAB) — 713KB
• opc-20250930_pre.xml (EX-101.PRE) — 444KB
• opc-20250930_htm.xml (XML) — 1370KB

—FINANCIAL INFORMATION

PART I—FINANCIAL INFORMATION Item 1.

Financial Statements

Financial Statements 1 Unaudited Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024 1 Unaudited Consolidated Statements of Revenues and Expenses For the Three and Nine Months ended September 30, 2025 and 2024 3 Unaudited Consolidated Statements of Patronage Capital and Membership Fees For the Three and Nine Months ended September 30, 2025 and 2024 4 Unaudited Consolidated Statements of Cash Flows For the Nine Months ended September 30, 2025 and 2024 5 Notes to Unaudited Consolidated Financial Statements 6 Item 2.

Management's Discussion and Analysis of Financial Condition and Results of Operations

Management's Discussion and Analysis of Financial Condition and Results of Operations 23 Item 3.

Quantitative and Qualitative Disclosures About Market Risk

Quantitative and Qualitative Disclosures About Market Risk 30 Item 4.

Controls and Procedures

Controls and Procedures 30

—OTHER INFORMATION

PART II—OTHER INFORMATION Item 1.

Legal Proceedings

Legal Proceedings 31 Item 1A.

Risk Factors

Risk Factors 31 Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 31 Item 3. Defaults Upon Senior Securities 31 Item 4. Mine Safety Disclosures 31 Item 5. Other Information 31 Item 6. Exhibits 32

SIGNATURES

SIGNATURES 33 i CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION This quarterly report on Form 10-Q contains "forward-looking statements." All statements, other than statements of historical facts, that address activities, events or developments that we expect or anticipate to occur in the future, including matters such as future capital expenditures, business strategy, regulatory actions, and development, construction or operation of facilities (often, but not always, identified through the use of words or phrases such as "will likely result," "are expected to," "will continue," "is anticipated," "estimated," "projection," "target" and "outlook") are forward-looking statements. Although we believe that in making these forward-looking statements our expectations are based on reasonable assumptions, any forward-looking statement involves uncertainties and there are important factors that could cause actual results to differ materially from those expressed or implied by these forward-looking statements. Some of the risks, uncertainties and assumptions that may cause actual results to differ from these forward-looking statements are described under "Item 1A—RISK FACTORS" and in other sections of our annual report on Form 10-K for the fiscal year ended December 31, 2024, and in this quarterly report on Form 10-Q. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this quarterly report may not occur. Any forward-looking statement speaks only as of the date of this quarterly report, and, except as required by law, we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which it is made or to reflect the occurrence of unanticipated events. New factors emerge from time to time, and it is not possible for us to predict all of them; nor can we assess the impact of each factor or the extent to which any factor, or combination of fact

—FINANCIAL INFORMATION

PART I—FINANCIAL INFORMATION

Financial Statements

Item 1. Financial Statements Oglethorpe Power Corporation Consolidated Balance Sheets (Unaudited) September 30, 2025 and December 31, 2024 (dollars in thousands) 2025 2024 Assets Electric plant: In service $ 17,437,631 $ 17,388,476 Right-of-use assets—finance leases 302,732 302,732 Less: Accumulated provision for depreciation ( 5,868,641 ) ( 5,701,627 ) Electric plant in service, net 11,871,722 11,989,581 Nuclear fuel, at amortized cost 411,032 402,328 Construction work in progress 726,542 320,167 Total electric plant 13,009,296 12,712,076 Investments and funds: Nuclear decommissioning trust fund 832,847 721,624 Investment in associated companies 85,486 86,720 Long-term investments 645,033 645,166 Other 40,494 38,862 Total investments and funds 1,603,860 1,492,372 Current assets: Cash and cash equivalents 310,678 337,813 Restricted cash and short-term investments 500 500 Short-term investments 85,582 124,572 Receivables 230,736 246,581 Inventories, at weighted average cost 349,625 356,285 Prepayments and other current assets 48,292 44,218 Total current assets 1,025,413 1,109,969 Deferred charges and other assets: Regulatory assets 1,069,926 1,103,633 Prepayments to Georgia Power Company 17,146 16,334 Other 35,378 43,154 Total deferred charges 1,122,450 1,163,121 Total assets $ 16,761,019 $ 16,477,538 The accompanying notes are an integral part of these consolidated financial statements. 1 Oglethorpe Power Corporation Consolidated Balance Sheets (Unaudited) September 30, 2025 and December 31, 2024 (dollars in thousands) 2025 2024 Equity and Liabilities Capitalization: Patronage capital and membership fees $ 1,393,597 $ 1,328,418 Long-term debt 12,084,244 12,134,194 Obligation under finance leases 27,531 33,173 Obligation under Rocky Mountain transactions 33,543 31,910 Other 4,349 5,715 Total capitalization 13,543,264 13,533,410 Current liabilities: Long-term debt and finance leases due within one year 39

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