Oglethorpe Power

Plant Hatch (near Baxley, GA)

Unit No. 1 · Nuclear · 30 · 262.2 · 1975 · 2034

Unit No. 2 · Nuclear · 30 · 264.3 · 1979 · 2038

Plant Vogtle (near Waynesboro, GA)

Unit No. 1 · Nuclear · 30 · 344.5 · 1987 · 2047

Unit No. 2 · Nuclear · 30 · 344.7 · 1989 · 2049

Unit No. 3 · Nuclear · 30 · 334.5 · 2023 · 2062

Unit No. 4 · Nuclear · 30 · 334.5 · 2024 · 2063

Plant Scherer (near Forsyth, GA)

Unit No. 1 · Coal · 60 · 515.0 · 1982 · N/A · (2)

Unit No. 2 · Coal · 60 · 515.0 · 1984 · N/A · (2)

Rocky Mountain (near Rome, GA)

Units No. 1-3 · Pumped Storage Hydro · 74.61 · 816.9 · 1995 · 2026 · (3)

Baconton (near Baconton, GA)

Unit 500 · Gas-Oil · 100 · 44.3 · 2000 · N/A · (2)

BC Smith (near Savannah, GA)

Unit No. 1 · Gas · 100 · 527.0 · 2003 · N/A · (2)

Chattahoochee (near Carrollton, GA)

Unit No. 1 · Gas · 100 · 484.5 · 2003 · N/A · (2)

Doyle (near Monroe, GA)

Units No. 1-5 · Gas · 100 · 272.1 · 2000 · N/A · (2)

Hartwell (near Hartwell, GA)

Units No. 1-2 · Gas-Oil · 100 · 304.9 · 1994 · N/A · (2)

Hawk Road (near Franklin, GA)

Units No. 1-3 · Gas · 100 · 478.2 · 2001 · N/A · (2)

Talbot (near Columbus, GA)

Units No. 1-4 · Gas-Oil · 100 · 449.6 · 2002 · N/A · (2)

Units No. 5-6 · Gas-Oil · 100 · 226.0 · 2003 · N/A · (2)

TA Smith (near Dalton, GA)

Units No. 1-2 · Gas · 100 · 1,294.6 · 2002 · N/A · (2)

Walton County (near Monroe, GA)

Units No. 1-3 · Gas · 100 · 449.7 · 2001 · N/A · (2)

Washington County (near Sandersville, GA)

Units No. 2-3 · Gas-Oil · 100 · 326.0 · 2003 · N/A · (2)

TOTAL · 8,588.5

(1)Summer Planning Reserve Capacity is the amount used for 2026 capacity reserve planning for the specified resources. Megawatt amounts in this table represent our portion of the total capacity at each facility based on our percentage interest.

(2)Fossil-fuel fired units do not operate under operating licenses similar to those granted to nuclear units by the Nuclear Regulatory Commission and to hydroelectric plants by FERC.

(3)In 2024, we submitted an application for a new license with FERC. The FERC may set a new license term for between 30-50 years, with FERC's default being 40 years.

Fuel Supply

For information regarding the electricity generated with each fuel type and its cost, see "MANAGEMENT'S DISCUSSION & ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS – Results of Operations – Operating Expenses."

Coal. Coal for Scherer Units No. 1 and No. 2 is purchased under term contracts and in spot market transactions. As of February 28, 2026, our coal stockpile at Plant Scherer contained a 38 day supply based on continuous operation. Plant Scherer burns sub-bituminous coal purchased from coal mines in the Powder River Basin in Wyoming.

We dispatch our interest in Plant Scherer, but use Georgia Power as our agent for fuel procurement. As of December 31, 2025, we leased approximately 709 railcars to transport coal. Over the past few years, we have managed rail-related delays in connection with our coal supply.

Nuclear Fuel. Georgia Power, as operating agent, has the responsibility to procure nuclear fuel for Plants Hatch and Vogtle. Georgia Power has contracted with Southern Nuclear to operate these plants, including nuclear fuel procurement. Southern Nuclear has contracted with multiple suppliers for uranium ore, conversion services, enrichment services and fuel fabrication to satisfy nuclear fuel requirements. Most contracts are short to medium-term. The nuclear fuel supply and related services are expected to be adequate to satisfy current and future nuclear generation requirements.

Natural Gas. We purchase the natural gas, including transportation and other related services, needed to operate our natural gas-fired generation resources. We purchase natural gas in the spot market and under longer-term agreements at daily market prices. We have entered into hedge agreements to manage a portion of our exposure to fluctuations in the market price of natural gas. We manage exposure to such risks only with respect to members that elect to receive such services. We have entered into long-term firm contracts for transportation of a significant percentage of our anticipated natural gas supply. We also purchase transportation under short-term firm and non-firm contracts. See "QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK – Commodity Price Risk."

Co-Owners of Plants

Nuclear · Coal-Fired · Pumped Storage

Plant Hatch · Plant Vogtle · Plant Scherer UnitsNo. 1 & No. 2 · Rocky Mountain · Total

MW(1) · MW(1) · MW(1) · MW(1) · MW(1)

Oglethorpe · 30.0 · 539 · 30.0 · 1,423 · 60.0 · 982 · 74.6 · 633 · 3,577

Georgia Power · 50.1 · 900 · 45.7 · 2,167 · 8.4 · 137 · 25.4 · 215 · 3,419

MEAG Power · 17.7 · 318 · 22.7 · 1,076 · 30.2 · 494 · — · — · 1,888

Dalton · 2.2 · 39 · 1.6 · 76 · 1.4 · 23 · — · — · 138

Total · 100.0 · 1,796 · 100.0 · 4,742 · 100.0 · 1,636 · 100.0 · 848 · 9,022

(1)Based on nameplate ratings.

Georgia Power Company

Georgia Power is a wholly owned subsidiary of The Southern Company and is engaged primarily in the generation and purchase of electric energy and the transmission, distribution and sale of this energy. Georgia Power distributes and sells

energy within the State of Georgia at retail in over 530 communities, including Athens, Atlanta, Augusta, Columbus, Macon, Rome and Savannah, as well as in rural areas, and at wholesale to some of our members, MEAG Power and two municipalities. Georgia Power is the largest supplier of electric energy in the State of Georgia. See "BUSINESS – OGLETHORPE POWER CORPORATION – Relationship with Georgia Power Company." Georgia Power is subject to the informational requirements of the Exchange Act, and, in accordance therewith, files reports and other information with the SEC.

Municipal Electric Authority of Georgia

• Our ability to meet our financial obligations could be adversely affected if our members fail to perform their contractual obligations to us.
• Regulatory, Legislative and Legal Risk Factors
• Our costs of compliance with environmental laws and regulations are significant and have increased in recent years. Potential new or stricter environmental laws and regulations, including those designed to address air and water quality, coal combustion residuals and other matters, may result in significant increases in compliance costs or operational restrictions.
• Legislative and regulatory actions intended to address climate change and to reduce greenhouse gas emissions, including carbon dioxide, may result in significant compliance costs or expenses.
• General Business Risk Factors
• Technology and information systems utilized by us, our members and third parties with whom we do business are subject to risk of failure, loss of access or cybersecurity breaches which could affect our ability to operate and expose us to litigation, regulatory action and reputational harm.
• Advances in power generation and energy storage technologies, including decreasing renewable energy costs and the broad adoption of distributed generation technologies, in our members' service territories could result in the cost of our electric service being less competitive.
• We are subject to the risk that counterparties may fail to perform their contractual obligations which could adversely affect us.
• Regardless of our financial condition, investors’ ability to trade our debt securities may be limited by the absence of an active trading market and there is no assurance that any trading market will develop or continue to remain active.