Snapshot
US regulated electric utilities earn money by investing in poles, wires, transformers, and power plants (their "rate base"), then charging customers a regulator-approved return on that invested capital. After roughly 15 years of flat electricity demand, AI data centers have broken the trend: US electricity generation hit a record 4,430 TWh in 2025 (+2.8% YoY), the EIA forecasts 1% growth in 2026 and 3% in 2027 (the strongest four-year stretch since 2000), and utilities now report a combined pipeline of 147 GW in high-probability new large loads — 20% of current US peak demand. The five companies here (NEE, DUK, SO, AEP, SRE) collectively plan roughly $405 billion in capital spending over their current five-year windows, nearly all of it going into regulated rate base that earns 9-11% allowed returns on equity.
147 GW
High-probability new large loads across US utilities (Grid Strategies, May 2026)
17 GW
Under construction now; 99 GW more committed
~$405B
Combined 5-year capex plans, these five utilities
5-10%
Annual load growth in data-center-heavy service territories (vs. ~0% prior 15 years) est.
9.6-10%
Rate base CAGR (DUK, AEP disclosed; others similar)
The product & how money is made
A regulated utility's product is delivered electricity. The business model is not selling electricity at a profit — it is investing capital and earning a regulator-approved return on that capital. The sequence:
- Rate base — the total dollar value of assets (power plants, transmission lines, substations, distribution wires) a utility has built and regulators have approved for cost recovery.
- Allowed ROE — state regulators set the return on equity a utility may earn, typically 9.5-11%. The utility files a "rate case" every few years to update this and to fold new investments into the rate base.
- Revenue requirement — rates charged to customers cover operating costs + depreciation + taxes + the allowed return on rate base. If the utility builds a $1B transmission line and the regulator approves it, that $1B earns the allowed return for decades.
- Load growth accelerates the cycle. New data center customers request service; the utility files for approval to build generation and grid infrastructure; regulators approve spending; rate base grows; earnings grow. Some utilities (SO, DUK) use 15-year minimum-term contracts with take-or-pay provisions for data center customers, reducing demand risk.
A utility with $50B in rate base earning 10% ROE on a 50% equity layer generates roughly $2.5B of allowed net income. Growing rate base 10% per year adds $250M in annual earnings on the same math.
Source: Standard utility regulatory model; ROE figures from FPL (10.95%), Oncor (9.75%), DUK/SO/AEP rate case filings.
Demand
Contracted and committed load
The distinction matters: "contracted" means a signed agreement with financial commitments; "pipeline" means a request has been filed but nothing is binding.
| Utility | Contracted large load | Pipeline (requests filed) | Contract terms |
|---|
| SO (Southern) | 11 GW (28 projects) contracted | 75 GW total pipeline | 15-year minimum, take-or-pay, termination payments, collateral required |
| AEP | 28 GW (Electric Service Agreements) contracted | 190 GW in various stages | Backed by signed agreements or letters of agreement |
| DUK (Duke) | ~1.5 GW recently signed contracted | ~4.5 GW data center pipeline | Service territory: Carolinas and Florida |
| NEE (NextEra) | 3 GW operational + 7 GW pipeline for data centers est. | 15-30 GW new generation by 2035 | Includes Google co-developed campuses and Meta PPAs (2.5 GW) |
| SRE (Sempra/Oncor) | 38 GW meets 2026 transmission plan standards contracted | 255 GW from data centers in Oncor queue alone | Oncor holds $3.5B in customer collateral |
Source: SO — Q1 2026 earnings (May 2026); AEP — Q3 2025 capital plan update; DUK — Feb 2026 investor update; NEE — EnkiAI compilation of disclosed contracts; SRE/Oncor — Feb 2026 press release. Pipeline figures include non-binding requests and will not all convert.
The broader demand picture est.
- US electricity generation hit a record 4,430 TWh in 2025, up 2.8% YoY. The EIA projects 1% growth in 2026 and 3% in 2027 — the strongest four consecutive years since 2000. The driver is commercial load, which includes data centers (+2.9% retail sales in 2025).
- EPRI projects data centers could consume 9% of US electricity generation by 2030, roughly double current levels.
- Across all US utilities, 147 GW of high-probability new large loads have been identified, of which 17 GW is under construction and 99 GW is committed. About 60 GW is expected online through 2030. 91% of the 17 GW under construction is in regulated utility territories.
- Southern Company projects commercial electricity sales will grow ~20% annually through the end of the decade. Data center sales grew 42% in Q1 2026.
- AEP projects system peak demand rising from 37 GW today to 65 GW by 2030 — a 76% increase.
Source: EIA press release (Jan 13, 2026); EPRI via Utility Dive; Grid Strategies (May 2026); SO Q1 2026 earnings; AEP Q3 2025. Some market-size figures are directional estimates from third-party research, not SEC-filed data.
Supply
What utilities are building
| Utility | 5-Year Capex | Generation additions | Key infrastructure |
|---|
| NEE | $120B (2025-2028, 4yr) | 4-8 GW gas by 2032; 20 GW gas pipeline; 615 MW Duane Arnold nuclear restart (Google PPA) | Google co-developed gigawatt-scale campuses; Entergy JV for 4.5 GW solar+storage |
| DUK | $103B (2026-2030) | ~5 GW natural gas by 2029; 10+ GW total generation | $13.5B transmission; $26.1B distribution; SMR evaluation |
| SO | $81B (2026-2030) | 10 GW approved new generation; 700 MW gas uprates by 2029; 6 brownfield gas sites | $1B+ contracted renewables under construction; Georgia Power capex rising to $2B/quarter |
| AEP | $72B (2026-2030) | $20B+ in new generation | $30B transmission; $17B distribution |
| SRE (Oncor) | $65B total ($47.5B Oncor base) | Oncor is T&D only (no generation) | ERCOT 765-kV STEP; $10B incremental opportunities identified; 145,000+ circuit miles |
Source: NEE — Motley Fool compilation (May 2026) and company disclosures; DUK — T&D World (Feb 2026); SO — Utility Dive (May 2026); AEP — Q3 2025 press release; SRE — Oncor Feb 2026 press release.
What limits supply (the bottlenecks)
- Interconnection queues: 2,200 GW (2.2 TW) of generation and storage projects sit in US interconnection queues. Average time from request to commercial operation: nearly 5 years (up from under 2 years in 2008). Only 19% of projects requesting interconnection between 2000-2019 reached commercial operations by end of 2024.
- Transformer lead times: Large power transformers take 3-4+ years to deliver (up from 12 months historically). Only a handful of global manufacturers. Grain-oriented electrical steel has limited capacity.
- Regulatory approval: Rate cases take 6-18 months. Siting new generation requires environmental review (NEPA), state utility commission approval, and local permitting. Gas plants take 3-4 years to build once approved.
- Labor: Electricians, linemen, and substation technicians take years to train. Average lineman age is ~45 est..
- Capital markets: Utilities must raise equity and debt to fund capex. NEE sold $1.5B equity in Oct 2024. DUK plans $6.5B equity issuance 2025-2029. Higher interest rates raise the cost of the ~50% debt layer.
The gap
Pipeline requests are growing faster than projects advance or withdraw. The high-confidence share of the total pipeline has been decreasing as new requests outpace completions.
| Measure | Demand side | Supply side | Gap |
|---|
| AEP system peak | 65 GW by 2030 | 37 GW today | 28 GW to build in ~5 years |
| Oncor (SRE) queue | 255 GW data center requests | 38 GW meets current transmission plan | ~217 GW awaiting infrastructure |
| SO pipeline | 75 GW total pipeline | 11 GW contracted, 10 GW approved generation | ~65 GW unserved pipeline |
| US-wide (all utilities) | 147 GW high-probability loads | 17 GW under construction | ~130 GW committed but not yet under construction |
| Interconnection queue | — | 2,200 GW awaiting study; 19% completion rate | Physical grid a multi-year bottleneck |
Pricing direction
In regulated utility economics, pricing is controlled by regulators, not the market. But load growth changes the math in three ways:
- Faster rate base growth — more capital deployed, more earnings, higher EPS growth.
- Cost socialization benefits existing customers. Southern Company has quantified ~$1.7B in ratepayer benefits from 2029-2031 from spreading fixed costs over a larger customer base. This makes regulatory approval for data center infrastructure easier to obtain.
- Premium service arrangements. FPL's new rate case permits large-load tariffs for customers with 50+ MW and 85%+ load factor. These tariffs can carry higher margins than standard residential service.
Source: AEP Q3 2025 press release; Oncor Feb 2026; SO Q1 2026 earnings; Grid Strategies (May 2026); RMI interconnection analysis; FPL rate case 8-K (Aug 2025).
The players
| Metric | NEE | DUK | SO | AEP | SRE |
|---|
| Market cap | $178.7B | $94.4B | $102.0B | $69.2B | $58.5B |
| Stock price | $85.68 | $121.09 | $90.51 | $127.11 | $89.55 |
| Enterprise value | $292.5B | $186.5B | $179.8B | $121.6B | $104.7B |
| Total debt | $104.4B | $91.2B | $76.0B | $51.8B | $36.4B |
| Net debt / EV | 60% | 52% | 45% | 44% | 37% |
| Trailing P/E | 21.7x | 18.6x | 23.1x | 18.8x | 30.5x |
| Forward P/E | 19.5x | 16.9x | 18.4x | 18.5x | 16.2x |
| EV/EBITDA | 20.7x | 11.3x | 12.9x | 13.3x | 18.6x |
| Dividend yield | 2.9% | 3.5% | 3.4% | 3.0% | 2.9% |
| P/Book | 3.2x | 1.8x | 2.7x | 2.2x | 1.9x |
| ROE | 10.3% | 9.7% | 11.0% | 12.6% | 5.7% |
| 5-yr capex plan | $120B (4yr) | $103B | $81B | $72B | $65B |
| Rate base (current) | — | $114B | — | — | — |
| Rate base CAGR | — | 9.6% | — | 10% | — |
| EPS growth target | 8%+ thru 2032 | 5-7% thru 2030 | ~6% | 7-9% | 7-9% |
| DC pipeline (GW) | 15-30 by 2035 | ~4.5 | 75 (11 contracted) | 190+ (28 contracted) | 255 queue |
| Beta | 0.72 | 0.40 | 0.36 | 0.55 | 0.60 |
What differentiates each:
- NEE — largest by market cap. Dual business: FPL (Florida regulated utility, ~10M customers) plus NextEra Energy Resources (world's largest generator of wind and solar energy). The $120B capex plan pivots from pure renewables to "all-forms-of-energy" including gas, nuclear restarts (Duane Arnold for Google), and co-developed data center campuses. In May 2026, NEE announced a $67B all-stock merger with Dominion Energy, which if completed would create the world's largest regulated utility with 110 GW capacity and Dominion's 450+ data center customer base in Northern Virginia.
- DUK — $103B capex plan (averaging $1.7B/month). Broke ground on ~5 GW of new gas generation in 2025. Rate base of $114B growing at 9.6% CAGR to ~$180B by 2030. Service territory: Carolinas and Florida.
- SO — 75 GW pipeline is the largest disclosed load pipeline of any utility, with 11 GW contracted under 15-year take-or-pay terms. Southeast territory (Georgia, Alabama, Mississippi) has lower power costs than most US regions. Georgia Power has quantified ~$1.7B in ratepayer benefits from data center load. Data center sales growing 42%.
- AEP — highest rate base CAGR at 10%, with rate base projected to reach $128B by 2030. System peak expected to nearly double (37 to 65 GW). Service territory spans 11 states (Ohio, Texas, Virginia, others). $30B transmission plan is the largest single component.
- SRE — the Texas play. Sempra owns 80.25% of Oncor, the largest T&D utility in Texas serving 4.1M customers. Oncor's interconnection queue includes 255 GW from data centers alone — the largest disclosed queue of any single utility. Oncor is T&D only (no generation), so its exposure is pure wires-and-poles rate base. SRE also has California utilities (SDG&E, SoCalGas) and LNG businesses. Trades at the lowest forward P/E (16.2x) partly due to the California regulatory environment (CPUC denied SDG&E ROE adder; FERC rejected a CAISO ROE adder).
Source: yfinance live data (Jun 2, 2026); company earnings releases, rate cases, and investor presentations as cited above. Rate base figures only where explicitly disclosed.
The price of exposure
| Metric | NEE | DUK | SO | AEP | SRE |
|---|
| EV / 5yr capex | 2.4x | 1.8x | 2.2x | 1.7x | 1.6x |
| EV / trailing revenue | 10.5x | 5.7x | 6.0x | 5.4x | 7.7x |
| Implied earnings yield (1/fwd PE) | 5.1% | 5.9% | 5.4% | 5.4% | 6.2% |
| Dividend + buyback yield | ~2.9% | ~3.5% | ~3.4% | ~3.0% | ~2.9% |
| 52-week range position | 59% (mid) | 36% (low) | 39% (low) | 68% (mid-high) | 59% (mid) |
EV/5yr capex is a rough measure of how much enterprise value the market assigns per dollar of planned capital deployment. Lower means less market value per dollar of future rate base. Utilities do not buy back stock in meaningful amounts — they issue equity to fund growth. The shareholder return is dividend yield (~3%) plus EPS growth (~6-10%), producing a total return profile of 9-13% annually if management growth targets are hit.
Key risks to that return: regulatory denial (capex not approved into rate base), construction delays (interconnection queue, labor shortages), or rising interest rates (increasing the cost of the ~50% debt layer and potentially compressing P/E multiples).
The debt load is structural. Utilities operate at 50-60% debt-to-capital ratios because regulators allow a debt component in rate base and the allowed ROE compensates for it. The debt service is embedded in customer rates.
Source: yfinance live data (Jun 2, 2026); capex plans from company filings. EV/5yr capex and 52-week position calculated from data above.
What to deep-dive next
- Regulatory risk by state. Not all regulators will approve all capex. Florida (NEE) and Georgia (SO) have historically been utility-friendly. Ohio and Virginia (AEP) are mixed. California (SRE) is adversarial. Texas (SRE/Oncor) is fast-growing but operates in the deregulated ERCOT market, which limits how much Oncor can build ahead of demand.
- Pipeline-to-contracted conversion rates. Oncor's 255 GW data center queue and AEP's 190 GW pipeline are enormous, but historical interconnection completion rates are only ~19%. How much actually converts?
- NEE-Dominion merger outcome. If the $67B merger closes (12-18 month regulatory review timeline), NEE becomes a fundamentally different entity: 110 GW capacity, Northern Virginia data center territory, and Dominion's ~$55B Virginia grid capex plan. The merger also brings Dominion's substantial debt and the world's largest offshore wind project.
- Interest rate sensitivity. A 100bp rise in the 10-year Treasury historically compresses utility P/E multiples by 1-2 turns est..
- Who pays for the buildout? Whether data center infrastructure costs are socialized across all ratepayers or paid directly by the hyperscaler varies by jurisdiction. Southern Company's model (ratepayer benefits quantified at $1.7B) implies socialization, but this is not guaranteed everywhere.
Sources & confidence
- EIA: US electricity generation record 4,430 TWh (2025), +2.8% YoY; 2026-2027 forecast +1%/+3% (EIA press release, Jan 13 2026).
- Grid Strategies / Utility Dive: 147 GW high-probability new large loads, 17 GW under construction, 99 GW committed (Grid Strategies load growth forecast, via Utility Dive, May 2026).
- RMI: 2,200 GW in interconnection queues; ~5-year average wait; 19% completion rate (RMI interconnection analysis, 2025).
- EPRI: Data centers could consume 9% of US electricity by 2030, per Utility Dive reporting.
- NEE: $120B capex (EnkiAI compilation of company disclosures); 8%+ EPS growth through 2032; FPL rate case 10.95% ROE (8-K, Aug 20 2025); Google Duane Arnold nuclear restart, Meta 2.5 GW PPAs, $67B Dominion merger (Motley Fool, May 18 2026).
- DUK: $103B capex, $114B rate base, 9.6% rate base CAGR, ~5 GW gas, 5-7% EPS growth through 2030, 2025 adj. EPS $6.31 (T&D World, Feb 2026; OilPrice, Feb 2026).
- SO: $81B capex (raised from $76B), 75 GW pipeline, 11 GW contracted (28 projects), 42% data center sales growth, ~6% EPS growth, ~$1.7B ratepayer benefits (Utility Dive, May 2026; Motley Fool, Apr 2026).
- AEP: $72B capex, $128B rate base by 2030, 10% rate base CAGR, 28 GW contracted, 190 GW pipeline, 7-9% EPS growth, peak demand 37→65 GW (AEP press release, Q3 2025).
- SRE/Oncor: $65B total capex ($47.5B Oncor base), 255 GW data center queue, 38 GW meets transmission plan, 9.75% ROE, 7-9% EPS growth, $3.5B customer collateral (Oncor press release, Feb 26 2026; TIKR blog, 2026).
- Market data: yfinance live pull, Jun 2 2026.
Confidence notes: Company-specific financials and capital plans are from primary SEC filings or official press releases. Rate base figures are disclosed only by DUK ($114B) and AEP ($128B target); others are omitted. Industry-wide pipeline and demand figures (147 GW, 2,200 GW queue) are from third-party research organizations and are directional. EPS growth targets are management guidance, not contractual commitments.