SOUtilitiesElectric / Gas Utility·Sep 3, 2026·8 min read

[SO] Southern Company Thesis 2026: Commercial Load Growth Accelerates on Mega Deals

Southern Company FY25 (Dec 31, 2025) at $29.55B revenue (+10.6%). GA Power commercial sales +17% YoY for 2 consecutive years on data-center customers. Industrial sales +1.4%; Residential +39K electric customers. Q3 FY25: 4 large-load >2GW contracts signed in 2 months. GA Power load forecast supports 10 GW capacity need. Adjusted EPS $4.30 (top of FY25 guide, +6%). Diluted EPS GAAP $3.92. Net income $4.34B. Capex $13.4B (+50%); OCF $9.80B; FCF -$3.59B (capex acceleration). Equity ATM $1.8B + debt $4B issued Q3. Dividends $3.02B; zero buybacks. Total debt $65.8B. 10 analysts: 3 Buy / 6 Hold / 1 Sell; consensus $102.50, range $92-$112. 4 upgrades Feb-March: Wells UW→EW, Mizuho N→OP, Keybanc UW→SW, Evercore I-L→OP.

SO: FY25 Deep Dive

FY25 revenue $29.55B (+10.6%) — Georgia Power commercial sales +17% YoY for second year in a row on data-center customers. Adjusted EPS $4.30 (top of guidance, +6%). Net income $4.34B; Diluted EPS $3.92. 4 large-load customer contracts >2GW signed in 2 months Q3. 10 GW capacity needed per Georgia Power filing. Capex $13.4B (+50%). Wave of upgrades Feb-March: Wells Fargo, Mizuho, Keybanc, Evercore.

Key Takeaways

Southern Company closed fiscal 2025 (calendar year ended December 31, 2025) at $29.55 billion of revenue, up 10.6% YoY — driven by data-center load growth in Georgia + customer + usage growth across the state-regulated utilities. Adjusted EPS of $4.30 was at the top of FY25 guidance range (+6% YoY, +9% average annual growth from 2023). Diluted EPS $3.92 (vs $3.99 FY24, slight decline reflecting share count + interest expense). Net income $4.34B (vs $4.40B FY24). The structural read: weather-normalized retail electricity sales grew 1.7% FY25 vs 2024, with Georgia Power +2.5% including all 3 customer classes up — and commercial sales +17% YoY for the second year in a row driven by large-load data center customers. Industrial sales grew 1.4%; residential added 39K new electric customers + 25K new natural gas. Q3 FY25: 4 contracts with large-load customers >2 GW signed in 2 months in GA + AL. Georgia Power filed updated load forecast supporting need for 10 GW of capacity resources — the structural data center demand that's driving the FY25-FY30 capex cycle. Free cash flow was -$3.59B (vs +$0.83B FY24, due to capex acceleration); capex $13.4B (+50% from $8.96B FY24); dividends $3.02B; zero buybacks. Total debt $65.82B (vs $66.28B FY24). Sell-side coverage is 10 analysts: 3 Buy / 6 Hold / 1 Sell, consensus PT $102.50, range $92-$112. Recent activity: Wells Fargo upgraded UW→EW (Feb 20); Mizuho upgraded Neutral→Outperform (Feb 20); Keybanc upgraded UW→Sector Weight (March 4); Evercore upgraded In-Line→OP (March 5) — 4 upgrades in 2 weeks.


Main business structure

Southern Company operates 3 vertically-integrated electric utilities + 4 natural gas utilities + Southern Power (wholesale generation) + smaller subsidiaries:

Subsidiary / SegmentCoverageApprox FY25 Share of Revenue
Georgia PowerGeorgia (~50% of state-regulated electric)~30%
Alabama PowerAlabama~20%
Mississippi PowerMississippi~5%
Southern Company Gas (4 LDCs)Atlanta, Illinois, Tennessee, Virginia~15%
Southern Powerwholesale gen, 13+ GW capacity~10%
Other (PowerSecure, Southern Telecom)distributed gen + telecom~5%

Georgia Power — the data-center engine

The structural growth driver:

  • Commercial sales +17% YoY for 2 consecutive years (FY24 + FY25) — driven by large-load data center customers
  • 39K new electric customers + 25K new natural gas customers added FY25
  • Industrial electricity sales +1.4% (recovery)
  • Q3 FY25: 4 large-load contracts >2 GW signed in 2 months (GA + AL)
  • Updated load forecast supporting need for 10 GW of capacity resources — the FY26-FY30 capex driver
  • Q3 IRP (Integrated Resource Plan) approvals for new generation resource certifications
  • Rate plan extends base rates until 2029 (regulatory stability)

Alabama Power

Vertically integrated; co-signed some of the >2 GW data center large-load contracts with Georgia Power. Stable rate base growth.

Southern Company Gas (4 LDCs)

Atlanta Gas Light + Nicor Gas (Illinois) + Chattanooga Gas + Virginia Natural Gas. Authorized rate base has tripled since acquisition. Active in data center markets (gas-supplied generation). Stable mid-single-digit EPS contribution.

Southern Power (wholesale)

13+ GW capacity. Opportunities for remarketing existing capacity, up-rating, and adding new generation tied to data center demand. Long-term industry-leading portfolio.

Smaller Subsidiaries

PowerSecure (distributed energy + microgrids) + Southern Telecom (fiber backbone) — growth optionality.

Capex Acceleration

  • FY25 capex $13.4B (+50% from $8.96B FY24); FY23 $9.10B
  • Multi-year buildout to support 10 GW capacity expansion
  • $1.8B equity issued through ATM program in Q3 FY25 (capital structure support)
  • $4B debt issuance in Q3 FY25

Customer concentration. Highly fragmented (9M+ customers across utilities) but data-center large-load customer concentration in commercial segment is meaningful and growing.

Geographic mix. Southeast US (GA + AL + MS) ~70%, plus 4-state natural gas LDCs.

Scale anchors. ~28,000 employees. ~9 million customers across electric + gas. ~46 GW total generation capacity (vertically integrated + Southern Power).


Key core metrics (3-year trend)

1. Revenue and the data-center step

FY23FY24FY25
Revenue ($B)25.2526.7229.55
YoY+6%+10.6%
GA Power commercial sales YoY+17%+17%
Weather-normal retail YoY+1.7%

The Georgia Power commercial +17% for 2 consecutive years is the cleanest single data point on data-center load growth in US utility coverage.

2. Earnings — adjusted EPS at top of guide

FY23FY24FY25
Operating income ($B)5.837.077.27
Net income ($B)3.984.404.34
Adjusted EPS$3.62 (approx)$4.05$4.30
Diluted EPS (GAAP)$3.62$3.99$3.92

Adjusted EPS +6% YoY; +9% 2-year CAGR — consistent with the 5-7% long-term EPS growth template.

3. Capex acceleration

FY23FY24FY25
OCF ($B)7.559.799.80
Capex ($B)9.108.9613.39
FCF ($B)-1.540.83-3.59

FCF turned -$3.6B in FY25 due to capex stepping up to $13.4B (+50% YoY). The capex profile likely sustains FY26-FY27 to support 10 GW capacity buildout.

4. Capital allocation

FY23FY24FY25
Dividends ($B)3.042.953.02
Buybacks ($B)000
Total debt ($B)63.566.365.8

Standard utility model: dividend continuity + debt-financed capex. Zero buybacks. Equity ATM issuance + $4B debt issuance Q3 FY25 to support capex.


Market evaluation

Sell-side coverage (as of April 27, 2026). 10 analysts cover the stock.

RatingCount
Buy / Outperform / Overweight3
Hold / Sector Perform / Sector Weight6
Sell / Underweight1

Price targets. Consensus $102.50, range $92 (low: Morgan Stanley, UW) to $112 (high: TD Cowen, Buy).

Recent analyst activity (Feb-April 2026). 9 covered actions in window — the structural feature was 4 upgrades in 2 weeks:

Upgrades:

  • Wells Fargo (Feb 20): Underweight → Equal-Weight, $84 → $96
  • Mizuho (Feb 20): Neutral → Outperform, $89 → $104
  • Keybanc (March 4): Underweight → Sector Weight, no PT
  • Evercore ISI (March 5): In-Line → Outperform, $103 → $111

Downgrade:

  • Seaport Global (April 20): Buy → Neutral, no PT — the lone downgrade in window

Other PT moves:

  • Morgan Stanley (April 21): $94 → $92 — UW maintained, modest -$2 cut
  • TD Cowen (March 6): $108 → $112 — Buy maintained
  • Barclays (April 10): $88 → $99 — EW maintained, +$11
  • Truist Securities: initiated Hold at $103 (April 21)

The 4 upgrades in 2 weeks is the cleanest "data-center utility re-rating" signal in the period. The bull thesis: 10 GW capacity needed, multi-year capex visibility, regulated rate base growth + ROE = predictable EPS compounding through FY30.

Buy-side positioning. SO is a core defensive utility holding paired with NEE (NextEra), DUK (Duke). ~3.5% dividend yield. Trades at premium multiple to utility peers on data-center thematic exposure. Short interest below 1.5% of float.


FY25 corporate structure: data-center load growth meets multi-year capex cycle

FY25 confirmed Southern Company as a clean beneficiary of the AI data-center capex cycle reaching the regulated electric utility layer. Georgia Power commercial sales +17% YoY for 2 consecutive years; 4 large-load >2GW customer contracts signed in 2 months Q3; 10 GW capacity resources needed per updated Georgia Power load forecast. The capex cycle has commenced — FY25 $13.4B (+50%) — and likely sustains FY26-FY27 to build the generation + transmission needed to serve the contracted data-center load. The 4 analyst upgrades in 2 weeks (Feb-March) is the Street rerating to the data-center utility thesis. The two FY26 watch items: (1) does Georgia Power commercial sales sustain +15-20% growth as additional data centers come online; (2) capex pace + financing mix as ATM equity issuance + debt funding the multi-year buildout. The Q1 FY26 earnings print this week is the proximate event for measuring continued commercial sales growth + Q1 large-load customer commentary + capex / equity issuance guidance + Georgia IRP progression.

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