Investors keep looking for the AI boom in the most obvious place: software, chips and cloud platforms. That is understandable. It is also incomplete. The more interesting trade may be developing in the older, less glamorous parts of the energy system: utilities with available power, pipelines that can expand gas supply, refiners that convert volatility into margins, and grids that are suddenly admitting they do not have enough slack.
This week’s news made that point from three directions. Alliant Energy is turning data-centre demand into utility load growth. TC Energy approved C$700 million in natural-gas pipeline expansions as power demand keeps rising. Valero reported its strongest quarterly profit since 2022 as refining margins surged. Meanwhile, PJM, America’s largest grid operator, said it expects roughly 70 gigawatts of new demand from very large energy users by 2038, even as its latest capacity auction came up 6.8 gigawatts short of what the grid needs.[1][2][3][4]
Those stories are not separate. They all point to one thesis: the market is finally paying for spare capacity. Not theoretical capacity. Not press-release capacity. Real energy infrastructure that can deliver when the system gets tight.
The three energy stocks worth watching this week are not exciting in the way investors usually define exciting. That may be the point.
Start with Alliant Energy. In its first-quarter update, the company said it signed an approximately 370-megawatt electric-service agreement in Iowa, bringing total contracted data-centre demand to roughly 3.4 gigawatts.[1] In a March update, Alliant also told customers that large energy users, including data centres, are responsible for the grid investments required to serve them.[5] That second detail matters as much as the first. Utilities do not just need load growth. They need load growth that regulators, customers and communities can accept.
This is why the market needs to rethink certain utilities. A traditional utility might grow slowly with population, weather and industrial activity. A utility with credible data-centre demand can suddenly look like an infrastructure company attached to the AI cycle. The challenge is cost allocation. The opportunity is contracted growth. When a customer needs power at scale and cannot afford interruptions, reliable generation becomes more valuable than the market’s old utility multiple suggests.
TC Energy is the second example. The company approved about C$700 million in natural-gas pipeline expansion projects across North America, including U.S. projects aimed at rising power-generation demand.[2] The Central Virginia project is expected to add up to 0.4 billion cubic feet per day of capacity on the Columbia Gas system, while the Clark project adds capacity on the Columbia Gulf system for an existing gas-fired power plant. TC Energy also approved an expansion of its NGTL system in Canada.[2]
That is what AI looks like when it leaves the data-centre rendering and enters the permitting queue. Servers can be installed quickly. Pipelines cannot. Gas-fired power plants need fuel. Fuel needs transportation. Transportation needs rights of way, compressors, regulatory approvals and years of planning. If electricity demand keeps climbing, the pipeline system becomes one of the most important bottlenecks in the AI economy.
Valero is the third name because the energy system is not only an electricity story. Valero reported second-quarter net income of $3.7 billion and refining adjusted operating income of $4.4 billion, compared with $1.3 billion in refining operating income a year earlier. It also returned $2.6 billion to shareholders in the quarter.[3] That is what happens when messy energy markets meet scarce refining capacity. Refineries become toll booths. They do not need to own the geopolitical shock. They need to be positioned to process crude into the fuels the market still demands.
The technical concept investors need to understand is not artificial intelligence. It is grid adequacy.
PJM Interconnection, the largest U.S. grid operator, said it plans to file proposals with federal regulators to close a widening gap between electricity supply and demand. The driver is very large energy users, overwhelmingly data centres. PJM expects demand from those customers to rise by about 70 gigawatts by 2038. For context, Reuters notes that one gigawatt can power about 750,000 homes.[4]
That is the scale problem hiding underneath the AI story. The latest PJM capacity auction hit its price cap at $325 per megawatt-day, yet still fell short by about 6.8 gigawatts of the reliability requirement needed to meet projected demand.[4] In plain English, the market sent a very expensive signal, and even that was not enough to secure all the power the grid says it needs.
PJM’s proposed response is blunt. It wants a one-time reliability backstop procurement process to secure additional power, and it also wants a registry for data centres and other very large energy users. Most importantly, PJM has proposed that data centres without their own power supply could be temporarily shut off during extreme grid stress to avoid broader rolling blackouts, though it would need state cooperation to do so.[4]
That proposal sounds aggressive. It is also logical. A data centre that brings no power plan is not just another customer. It is a concentrated load that can change the reliability math for everyone else. If AI companies want to plug small-city-scale demand into the grid, they should bring supply, flexibility or curtailment rights with them. Otherwise, ordinary customers are being asked to subsidize reliability risk they did not create.
This is not anti-AI. It is pro-infrastructure honesty. AI does not run in the cloud. It runs on power plants, pipelines, transformers and transmission lines. No power plan, no data centre, may sound harsh. But in a grid that is already short, it may become the only fair rule.
The oil market delivered the same lesson in a different form: low inventories make every disruption louder.
Oil prices jumped roughly 7% on July 29 as Middle East airstrikes resumed and traders reacted to falling U.S. crude inventories. Brent settled up 7.91% at $90.74 a barrel, while West Texas Intermediate rose 6.56% to $84.46.[6] It would be easy to call that panic over geopolitics and move on. That misses the important number.
U.S. crude inventories fell by 7.2 million barrels to 404.5 million barrels in the week ended July 24, the lowest level since 2018 and far below the 1.3-million-barrel draw analysts expected.[6] That means the market was already walking around with less padding before the geopolitical punch landed. Tight inventories do not create every price spike. They make every headline matter more.
This is the same infrastructure lesson again. In electricity, the missing slack shows up as capacity shortfalls and emergency curtailment proposals. In natural gas, it shows up as pipeline expansions. In refining, it shows up as margins and cash returns. In oil, it shows up as a price chart that can move violently when storage is low and geopolitics gets worse.
Markets like efficiency until something breaks. Then they rediscover the value of redundancy. They rediscover why inventory matters, why pipelines matter, why refineries matter, and why utilities with credible generation plans matter.
The AI boom is not making energy infrastructure obsolete. It is making the old system more valuable, precisely because the new economy depends on it. Chips may get the headlines. Models may get the venture capital. But power demand, gas transportation, refining capacity and oil inventories are where the physical constraints show up.
The question for investors is whether they want to chase the most expensive part of the AI story—or own the infrastructure that keeps getting paid every time the system runs out of slack.
Information only; not investment advice.
[1] https://investors.alliantenergy.com/News–Presentations/news/news-details/2026/Alliant-Energy-Announces-First-Quarter-2026-Results/default.aspx
[2] https://www.reuters.com/business/energy/tc-energy-beats-quarterly-profit-estimates-strong-north-american-operations-2026-07-30/
[3] https://investorvalero.com/news/news-details/2026/Valero-Energy-Reports-Second-Quarter-2026-Results/default.aspx
[4] https://www.reuters.com/business/energy/largest-us-grid-moves-ahead-with-plan-meet-swelling-demand-2026-07-28/
[5] https://www.alliantenergy.com/news/illuminate/%2C-w-%2C/2026/03/031726-growth
[6] https://www.reuters.com/business/energy/oil-prices-rebound-by-more-than-2-barrel-prospect-tightening-us-crude-supplies-2026-07-29/
Your personal details are strictly for our use, and you can unsubscribe at any time.