June 2016 Euro Issuance

• Amount Allocated: $965.2 million
• In Service: Eight phases were placed in service from December 2015 through July 2016
• Location: San Bernardino County, California
• Capacity: 300 MW, Southern Power owns a 66% equity interest (approximately 197 MW)
• Generation Resource: Photovoltaic Solar
• Southern Power acquired a majority interest through an initial partnership arrangement with First Solar.
• Electricity generated by the plant serves a 20-year power purchase agreement with Southern California Edison, which has the option to keep or sell the associated renewable energy credits (RECs).*
• In 2021, the project generated approximately 638,787 megawatt hours (MWh) and offset 452,900 metric tons of CO2, bringing the total since the project was placed in service to approximately 3,814,390 MWh and 2,721,604 metric tons of CO2 offset.**
• In 2021, Desert Stateline generated enough electricity to power the equivalent of approximately 59,611 average U.S. homes for one year, bringing the total since the project was placed in service to approximately 356,815 homes.***
• Fact Sheet

*If the RECs are re-sold, the ultimate purchaser of the RECs gains the exclusive right to claim that its load received any and all environmental benefits associated with the renewable energy generated.

**Per the EPA Environmental Impacts Calculator

***Per the EIA annual average residential electricity consumption

• Amount Allocated: $98.9 million (Southern Power also allocated $39.4 million from the November 2015 green bond issuance (total of $138.3 million) to the Decatur Parkway Solar Facility.
• In Service: December 2015
• Location: Decatur County, Georgia
• Capacity: 84 MW
• Generation Resource: Photovoltaic Solar
• The project was proposed by Tradewind Energy Inc. and selected by Southern Company subsidiary Georgia Power in a competitive process through the nationally recognized Georgia Power Advanced Solar Initiative.
• Electricity generated by the plant serves a 25-year power purchase agreement with Georgia Power, which has the option to keep or sell the associated renewable energy credits (RECs).*
• In 2021, the project generated approximately 153,607 megawatt hours (MWh) and offset 108,907 metric tons of CO2, bringing the total since the project was placed in service to approximately 1,077,011 MWh and 768,094 metric tons of CO2 offset.**
• In 2021, Decatur Parkway generated enough electricity to power the equivalent of approximately 14,334 average U.S. homes for one year, bringing the total since the project was placed in service to approximately 100,657 homes.***
• Fact Sheet

*If the RECs are re-sold, the ultimate purchaser of the RECs gains the exclusive right to claim that its load received any and all environmental benefits associated with the renewable energy generated.

**Per the EPA Environmental Impacts Calculator

***Per the EIA annual average residential electricity consumption

• Amount Allocated: $42.3 million
• In Service: March 2016
• Location: Taylor County, Georgia
• Capacity: 30 MW
• Generation Resource: Photovoltaic Solar
• The project was initially proposed by Longview Solar LLC – a joint venture of Elemental Energy Inc. and TUUSSO Energy, LLC – and selected by Southern Company subsidiary Georgia Power in a competitive process through the nationally recognized Georgia Power Advanced Solar Initiative.
• Electricity generated by the plant serves a 30-year power purchase agreement with Georgia Power, which has the option to keep or sell the associated renewable energy credits (RECs).*
• In 2021, the project generated approximately 64,417 megawatt hours (MWh) and offset 45,671 metric tons of CO2, bringing the total since the project was placed in service to approximately 388,801 MWh and 277,346 metric tons of CO2 offset.**
• In 2021, Pawpaw generated enough electricity to power the equivalent of approximately 6,011 average U.S. homes for one year, bringing the total since the project was placed in service to approximately 37,029 homes.***
• Fact Sheet

*If the RECs are re-sold, the ultimate purchaser of the RECs gains the exclusive right to claim that its load received any and all environmental benefits associated with the renewable energy generated.

**Per the EPA Environmental Impacts Calculator

***Per the EIA annual average residential electricity consumption

• Amount Allocated: $123.9 million
• In Service: July 2016
• Location: Penobscot County, Maine
• Capacity: 42 MW
• Generation Resource: Wind Turbine
• Electricity generated by the plant serves a 15-year power purchase agreement with Eversource Energy, which has the option to keep or sell the associated renewable energy credits (RECs). Southern Power will retain a small percentage of the electricity and RECs generated, which it may keep or sell.*
• In 2021, the project generated approximately 137,147 megawatt hours (MWh) and offset 97,237 metric tons of CO2, bringing the total since the project was placed in service to approximately 801,621 MWh and 572,109 metric tons of CO2 offset.**
• In 2021, Passadumkeag generated enough electricity to power the equivalent of approximately 12,798 average U.S. homes for one year, bringing the total since the project was placed in service to approximately 80,783 homes.***
• Fact Sheet

*If the RECs are re-sold, the ultimate purchaser of the RECs gains the exclusive right to claim that its load received any and all environmental benefits associated with the renewable energy generated.

**Per the EPA Environmental Impacts Calculator

***Per the EIA annual average residential electricity consumption