Smarr Combined Cycle Project	6 Months Ended
Jun. 30, 2026
Regulated Operations [Abstract]
Smarr Combined Cycle Project	Smarr Combined Cycle Project. We and our members have approved the development and construction of an approximately 1,425-megawatt, two-unit combined cycle generation facility to be located on land we own adjacent to the Smarr Energy Facility in Monroe County, Georgia. Our current budget for this project, which includes capital costs, allowance for funds used during construction and a contingency amount, is $3.3 billion. The projected commercial operation date is 2029. As of June 30, 2026, we had incurred costs of approximately $662.0 million with respect to this project. For additional information regarding this project, see Note 14 in our 2025 Form 10-K.Talbot Combustion Turbine Unit No. 7. We and our members have also approved the development and construction of an approximately 240-megawatt combustion turbine unit to be constructed at our Talbot Energy Facility in Talbot County, Georgia. Our current budget for this project, which includes capital costs, allowance for funds used during construction and a contingency amount, is approximately $440 million. The projected commercial operation date for this unit is 2029. As of June 30, 2026, we had incurred costs of approximately $68.5 million with respect to this project. For additional information regarding this project, see Note 15 in our 2025 Form 10-K.

Smarr Combined Cycle Project

6 Months Ended

Jun. 30, 2026

Smarr Combined Cycle Project. We and our members have approved the development and construction of an approximately 1,425-megawatt, two-unit combined cycle generation facility to be located on land we own adjacent to the Smarr Energy Facility in Monroe County, Georgia. Our current budget for this project, which includes capital costs, allowance for funds used during construction and a contingency amount, is $3.3 billion. The projected commercial operation date is 2029. As of June 30, 2026, we had incurred costs of approximately $662.0 million with respect to this project. For additional information regarding this project, see Note 14 in our 2025 Form 10-K.Talbot Combustion Turbine Unit No. 7. We and our members have also approved the development and construction of an approximately 240-megawatt combustion turbine unit to be constructed at our Talbot Energy Facility in Talbot County, Georgia. Our current budget for this project, which includes capital costs, allowance for funds used during construction and a contingency amount, is approximately $440 million. The projected commercial operation date for this unit is 2029. As of June 30, 2026, we had incurred costs of approximately $68.5 million with respect to this project. For additional information regarding this project, see Note 15 in our 2025 Form 10-K.