Company: SOJE
Filing Date: 2025-02-20
Form Type: 10-K
Source: 0000092122-25-000018
Chunk: 1292

Company: SOUTHERN CO
Filing Date: 2025-02-20
Form: 10-K
Item: Item 8
Chunk 1292
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 8.30 8.30 8.30 8.30 Annual salary increase4.60 4.60 4.60 4.60 4.60 4.60 Other postretirement benefit plansDiscount rate – benefit obligations4.99 %5.01 %4.98 %4.98 %5.06 %4.98 %Discount rate – interest costs4.90 4.90 4.89 4.90 4.94 4.89 Discount rate – service costs5.16 5.17 5.16 5.16 5.14 5.16 Expected long-term return on plan assets7.67 7.97 7.59 7.43 — 6.36 Annual salary increase4.60 4.60 4.60 4.60 4.60 4.60 2023Assumptions used to determine netperiodic costs:Southern CompanyAlabamaPowerGeorgiaPowerMississippi PowerSouthern PowerSouthern Company GasPension plansDiscount rate – benefit obligations5.25 %5.26 %5.25 %5.25 %5.31 %5.24 %Discount rate – interest costs5.13 5.14 5.12 5.12 5.19 5.12 Discount rate – service costs5.36 5.38 5.38 5.37 5.37 5.31 Expected long-term return on plan assets8.40 8.40 8.40 8.40 8.40 8.40 Annual salary increase4.80 4.80 4.80 4.80 4.80 4.80 Other postretirement benefit plansDiscount rate – benefit obligations5.18 %5.20 %5.17 %5.17 %5.24 %5.16 %Discount rate – interest costs5.08 5.09 5.07 5.08 5.12 5.07 Discount rate – service costs5.34 5.35 5.34 5.33 5.33 5.33 Expected long-term return on plan assets7.67 7.95 7.49 7.43 — 6.59 Annual salary increase4