Southern Southern Company System Total Nameplate Generating by Year

Southern Southern Company System Total Nameplate Generating: 46,296.60 mw in FY2025, up 3.1% from a year earlier.

“|| Total Southern Company System Generating Capacity | 46,296,579”

Source: Southern Company 10-K (10k_2025, filed 2026-02-19, 0000092122-26-000006) ↗

Total year-end nameplate generating capacity across Georgia Power, Alabama Power, Mississippi Power, Southern Power, and SEGCO (45,103.5 MW at FY2025).

• Nameplate Generating Capacity — Georgia Power (MW)14,789.10 · FY2025
• Nameplate Generating Capacity — Alabama Power (MW)13,822.10 · FY2025
• Nameplate Generating Capacity — Mississippi Power (MW)4,017.90 · FY2025
• Nameplate Generating Capacity — Southern Power (MW, Net Ownership)12,647.90 · FY2025
• Nameplate Generating Capacity — SEGCO (MW)1,019.70 · FY2025
• System Nameplate Capacity by Fuel — Natural Gas (MW)23,360.10 · FY2025
• System Nameplate Capacity by Fuel — Coal (MW)9,023.20 · FY2025
• System Nameplate Capacity by Fuel — Nuclear (MW)4,786.70 · FY2025
• System Nameplate Capacity by Fuel — Hydro (MW)2,794.50 · FY2025
• System Nameplate Capacity by Fuel — Solar (MW)2,933.00 · FY2025
• System Nameplate Capacity by Fuel — Wind (MW)2,534.60 · FY2025
• System Nameplate Capacity by Fuel — Battery & Pumped-Hydro Energy Storage (MW)776.00 · FY2025
• Traditional Electric Operating Companies Maximum Peak-Hour Demand (MW)37,006.00 · FY2025
• Traditional Electric Operating Companies System Reserve Margin (%)20.0% · FY2025

See every metric in the Southern KPI table. Data updated Nov 2, 2026.