Sempra's $65 Billion Bet: Building the Grid That Powers America's AI Boom While California Burns

Sempra is rapidly becoming a Texas-first utility, pouring $47.5 billion into Oncor's grid to serve a 255 GW data center queue — but California's wildfire liability collapse just wiped billions off its peers and sent Mizuho scrambling for the downgrade button. The stock sits at $84, 20% below analyst consensus, as the market reprices California risk against Texas upside.

SRE · Utilities · September 01, 2026

S&P 500 Position

Within the S&P 500 Utilities sector, Sempra sits behind NextEra Energy (~$170B), Southern Company (~$105B), and Duke Energy (~$95B) by market cap, and alongside Dominion Energy and American Electric Power. Its differentiation is structural: no other major U.S. utility combines regulated T&D in the two largest state economies (California and Texas) with a multi-billion-dollar LNG export development platform. The Texas growth story gives Sempra an unusual load-growth narrative in a sector where most peers face flat-to-declining demand outside data center corridors.

Index Weight: ~0.12% | Rank: Approximately #150–170 in the S&P 500 by market capitalization

Company Overview

Sempra is executing the largest capital campaign in its history — $65 billion over 2026–2030 — with the explicit strategic goal of shifting its center of gravity from wildfire-plagued California to the explosive load growth in ERCOT-governed Texas. Through its 80.25% economic interest in Oncor, Sempra controls the transmission and distribution backbone serving the Dallas–Fort Worth metroplex and the I-35 corridor, where ERCOT's qualifying load forecast has hit 127 GW — more than four times Oncor's current 31 GW peak. The company's CFO stated plainly on the Q2 2026 call that Texas should comprise over 60% of Sempra's total rate base by 2030, up from roughly half today. The infrastructure platform extends beyond wires. Sempra Infrastructure is building out a multi-phase LNG export complex at Port Arthur, Texas, with Phase 1 (two trains, ~13 Mtpa) targeting first commercial operations in 2027, Phase 2 (two more trains, ~13 Mtpa) reaching FID in September 2025 with a ~$14 billion budget, and a freshly permitted Phase 3 ("Port Arthur LNG North") filing for four additional trains totaling 27 Mtpa. The company just placed the Port Arthur Louisiana Connector — a 72-mile, 42-inch feeder pipeline capable of moving 2 Bcf/day — in service ahead of schedule and under its sub-$1 billion budget. Sempra is simultaneously preparing to monetize a portion of this LNG platform through a partnership transaction with KKR expected to close in Q3 2026. In California, Sempra runs SDG&E and SoCalGas under CPUC-regulated cost-of-capital frameworks locked through 2028. The regulatory picture there has deteriorated sharply: SB 492, the wildfire liability bill that emerged over the August 31 weekend, blocked Governor Newsom's proposed $6 billion per-incident liability cap and offered no wildfire fund replenishment. SDG&E's exposure is smaller than PG&E's or Edison's — hence Sempra's comparatively modest 3–4% sell-off versus 18–23% for peers — but the overhang is real, especially with SDG&E ratepayers already facing bills that have surged 97% over the past decade.

Products & Revenue

Sempra generates revenue through three operating segments plus a corporate parent. In Q2 2026, Oncor Holdings (Texas T&D) was the largest revenue contributor at $2.06 billion, followed by SDG&E at $1.37 billion (predominantly electric), SoCalGas at $1.19 billion (natural gas distribution), and Sempra Infrastructure at $512 million (LNG development, pipelines, and energy exports). The Texas segment is also the largest earnings contributor, reflecting Oncor's 18% annual rate base growth trajectory and ERCOT's favorable regulatory construct. Sempra Infrastructure punches above its revenue weight on earnings due to the high-margin, contracted nature of LNG offtake agreements.

Sempra Texas (Oncor Holdings) (~40%): 80.25% economic interest in Oncor, the largest T&D utility in Texas, serving ~13 million customers across ERCOT. Q2 2026 revenue of $2.06B and segment earnings of $346M. Executing a $47.5B base capital plan (2026–2030) plus $10B incremental opportunity for ERCOT-endorsed transmission projects.

SDG&E (within Sempra California) (~27%): Combined electric and gas utility serving the San Diego metro area. Q2 2026 electric revenue of $1.204B surged 40% YoY; natural gas revenue of $183M. CPUC-authorized ROE of 9.93% through 2028. Filed its 2028 General Rate Case in June 2026.

SoCalGas (within Sempra California) (~23%): The nation's largest natural gas distribution utility, serving 22 million consumers across Southern California. Q2 2026 revenue of $1.19B with segment earnings of $107M. CPUC-authorized ROE of 9.78% through 2028.

Sempra Infrastructure (~10%): LNG export terminals (Port Arthur Phases 1–3, Cameron LNG), natural gas pipelines, and renewable energy assets primarily along the U.S.–Mexico border. Q2 2026 revenue of $512M but $230M in segment earnings — the highest margin segment. KKR partnership transaction expected to close Q3 2026.

Based on Q2 2026 10-Q filing (period ending June 30, 2026) and Sempra earnings release. Revenue percentages approximated from quarterly segment data; Oncor consolidation adds intercompany complexity.

Leadership

Jeffrey W. Martin

CEO since 2018. Chairman, CEO, and president since May 2018. Martin has reshaped Sempra from a California-centric gas and electric utility into a continental energy infrastructure platform, orchestrating the $65 billion capital campaign — the largest in company history — and the strategic pivot toward Texas. He leads a workforce of approximately 20,000 employees across operations that serve more Americans than any other U.S. utility.

Justin Bird, Incoming EVP & CFO (currently CEO of Sempra Infrastructure): Architected the Port Arthur LNG development pipeline and the KKR partnership structure. Succeeding Karen Sedgwick as CFO upon close of the SI Partners transaction, expected Q3 2026 — a signal that Sempra views infrastructure finance and deal execution as its core strategic capability going forward.

Caroline Winn, EVP, Sempra; Chairman of SDG&E and SoCalGas: Oversees the California dual utility platform and is the executive responsible for navigating wildfire liability exposure, CPUC rate cases, and the politically charged regulatory environment in the state.

Karen Sedgwick, EVP & CFO (outgoing): Led the capital structure engineering that eliminated Sempra's need to issue common equity to fund its $65B base capital plan. Publicly articulated the 60%-of-rate-base-in-Texas-by-2030 target on the Q2 2026 earnings call.

Allen Nye, CEO, Oncor Electric Delivery: Runs the operational execution of Oncor's record $47.5B capital plan and manages the 650-request, 255 GW large-commercial-and-industrial interconnection queue — the single largest load pipeline of any U.S. T&D utility.

The AI Angle

Powering the data centers, not running them

Sempra does not build AI models or ship AI software. Its AI relevance is pure infrastructure: Oncor's service territory in Texas contains approximately 255 GW of data center interconnection requests — a number so large it exceeds the entire installed generating capacity of most European nations. The 2026 ERCOT Regional Transmission Plan forecasts 127 GW of qualifying new load in Oncor's territory alone, over four times its current 31 GW peak, with data centers representing the dominant share. Sempra's $65 billion capital plan is, in substantial part, a bet that hyperscalers and GPU-cluster operators will convert those queue positions into energized load over the next decade. The capital deployment is already translating into endorsed projects. In June 2026, ERCOT approved a set of high-voltage transmission upgrades in the southern DFW area and the I-35 corridor requiring over $7 billion of new investment to support roughly 16 GW of incremental demand, with in-service dates stretching from 2026 to 2034. Oncor has identified an additional $10 billion in incremental capital opportunity beyond its $47.5 billion base plan, much of it tied to data center interconnections. The picture is not without risk. In mid-2026, Texas Governor Greg Abbott paused new data center interconnection approvals pending a state-wide audit of grid capacity and reliability, injecting uncertainty into the timeline for Oncor's 44 GW of large-load projects that had qualified for ERCOT's Batch Zero interconnection process. The pause reflects growing political tension between economic development ambitions and grid stability concerns in a state that experienced catastrophic winter blackouts in 2021. Sempra Infrastructure's LNG platform adds a secondary AI adjacency: natural gas is the marginal fuel for ERCOT generation, and data center load growth directly increases gas burn. Port Arthur's eventual 53 Mtpa of combined export and domestic supply capacity positions Sempra on both sides of the AI-driven power demand surge — building the wires to deliver electrons and the pipes to deliver molecules that generate them.

Financial Snapshot

Revenue (TTM): $13.6B — TTM ending June 30, 2026 | Net Income: $2.28B net income (TTM)

Margins: Net margin 16.8%. Gross and operating margins data unavailable at the consolidated level due to utility accounting conventions (cost-of-fuel pass-throughs distort gross margins).

Sempra is in full investment mode. H1 2026 capex of $4.7 billion exceeded operating cash flow of $3.1 billion, and full-year 2025 capex nearly doubled to $10.6 billion from $5.4 billion in 2022. The company has structured its balance sheet to avoid common equity issuance for the base plan, relying instead on retained earnings, asset monetizations (KKR partnership), and debt. Adjusted EPS guidance of $4.80–$5.30 for 2026 and $5.10–$5.70 for 2027 implies 6–8% earnings growth. The 16-year consecutive dividend increase streak continues with a modest 2–4% annual growth target, keeping the payout ratio conservative to fund reinvestment.

1-Year Performance

Current price of $84.26, up 4.6% YoY — dramatically underperforming the S&P 500 but reflecting a sharp sell-off from the SB 492 wildfire legislation news over the final weekend of August 2026.

Sempra traded near $90+ before the SB 492 wildfire bill emerged, which triggered a 3–4% single-day decline — far less severe than the 18–23% drops at PG&E and Edison International, validating the market's recognition that Sempra's California exposure is proportionally smaller. The stock now trades at a ~20% discount to the $104.38 consensus price target. The Mizuho downgrade to Neutral with an $84 target effectively marks the current price as a floor, while Jefferies upgraded the stock the same day and Wells Fargo maintained Overweight, arguing Texas growth more than offsets California regulatory risk.

Recent News

Fun Fact: Oncor's 255 GW data center interconnection queue is larger than the entire installed electricity generation capacity of the United Kingdom (~76 GW), France (~142 GW), and Spain (~120 GW) — combined. If even 15% of those queued projects energize, Oncor would need to build more transmission infrastructure in a single decade than most U.S. utilities have built in their entire histories. The pipeline is so large that it prompted Texas Governor Abbott to halt new data center interconnection approvals entirely, making Sempra's biggest growth catalyst simultaneously its most politically uncertain.