Company: SOJE
Filing Date: 2025-03-31
Form Type: PRE 14A
Source: 0000092122-25-000032
Chunk: 9

Company: SOUTHERN CO
Filing Date: 2025-03-31
Form: PRE 14A
Chunk 9
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5 Proxy Statement

#### Company Performance
| Our Annual Energy Mix |     |                  |     |                                                                                                                                                                                                                                                                                                                                                   |
|                       |     |                  |     | 4Energy mix percentages include non-affiliate power purchase agreements.                                                                                                                                                                                                                                                                          
 4Renewables/Other category includes wind, solar, hydropower, biomass and landfill gas.                                                                                                                                                                                                                                                            
 4Energy mix represents all of the energy the Southern Company system uses to serve its retail and wholesale customers. It is not meant to represent delivered energy mix to any particular retail customer or class of customers.                                                                                                                 
 4With respect to certain renewable generation and associated renewable energy credits (RECs), to the extent an affiliate of Southern has the right to the RECs associated with renewable energy it generates or purchases, it retains the right to sell the energy and RECs, either bundled or separately, to retail customers and third parties. |
|                       |     | Renewables/Other |     |                                                                                                                                                                                                                                                                                                                                                   |
|                       |     | Nuclear          |     |                                                                                                                                                                                                                                                                                                                                                   |
|                       |     | Natural Gas      |     |                                                                                                                                                                                                                                                                                                                                                   |
|                       |     | Coal             |     |                                                                                                                                                                                                                                                                                                                                                   |

We believe our path to net zero will be achieved through:

4 Continued coal fleet transition

4 Thoughtful use of natural gas

4 Further growth in portfolio of zero- carbon resources

4 Negative carbon solutions

4 Enhanced energy efficiency initiatives

4 Continued investment in R&D focused on clean energy technologies

4 From 2007 through the end of 2024, we reduced the number of coal units from 66 to 15 and our nameplate coal capacity from 20,457 MW to 8,523 MW. Between 2015 and 2024, we more than doubled our renewable and storage resources, with a total of approximately 12,500 MW currently in operation.

4 The work of planning, transitioning and operating our system to meet our decarbonization goals will require continued active and constructive engagement with government officials, investors and a wide variety of other public and private stakeholders. Our success will require the support of policies that encourage and advance innovation while protecting the reliability, resiliency and affordability of the services we provide to our customers.

4 Our electric operating companies continued to be recognized for industry-leading customer service among electric utilities, with J.D. Power ranking Georgia Power No. 1 in residential customer satisfaction (South Large segment) for the third year in a row and Cogent recognizing Mississippi Power