3 Stocks Powering AI Data Centers And The Grid Investors Should Watch

MasTec, Inc.

MasTec, Inc.

MTZ

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Investors are watching energy prices, inflation signals and interest rate expectations closely. Power grid technology stocks sit right at this intersection. Higher energy costs and growing electricity demand from AI and electrification keep attention on the infrastructure that moves power, not just the companies that produce it. The Power Grid Technology Stocks screener focuses on profitable businesses that supply the hardware and construction services behind this high-density energy network. That helps you focus on the grid itself as an investment theme. In this article, you will see three of the strongest stocks highlighted from this screener.

MasTec (MTZ)

Overview: MasTec is an infrastructure engineering and construction company that builds and maintains the essential networks behind modern life, from wireless and fiber communications to power grids, pipelines, renewable energy projects, and data center electrical systems across the US and Canada.

Market Cap: US$25.7b

MasTec catches attention because it sits at the heart of several themes that matter for the power grid story, including utility grid upgrades, renewable projects, pipelines, and the fast growing build out of data centers and AI ready electrical infrastructure. The company reported a record US$21.4b backlog and is focusing on higher value data center and mission critical work through the Superior Group acquisition, which added thousands of skilled employees and new capabilities. At the same time, MasTec carries high debt, has relied on external borrowing, and has seen recent insider selling, so execution missteps or project delays could have a significant impact. Investors who want to understand how this balance of potential growth opportunities and financial risk compares with alternatives are only seeing the surface here.

MasTec’s record backlog and push into higher value data center work may be masking a deeper story about balance sheet pressure and project risk. Get the full picture in the 4 key rewards and 2 important warning signs

MTZ Discounted Cash Flow as at Aug 2026
MTZ Discounted Cash Flow as at Aug 2026

Infineon Technologies (XTRA:IFX)

Overview: Infineon Technologies is a German semiconductor company that supplies power chips, sensors, microcontrollers and security solutions used in electric vehicles, renewable energy systems, industrial equipment, connected devices and payment and ID products across global markets.

Operations: Infineon generates most of its revenue from Automotive at €7.4b, followed by Power & Sensor Systems at €4.6b, Green Industrial Power at €1.7b and Connected Secure Systems at €1.4b.

Market Cap: €80.6b

Infineon Technologies is closely linked to power grid, EV and AI trends, supplying power semiconductors and control chips that sit inside everything from chargers and inverters to data centers and industrial drives. The company has a large equity base, moderate debt and is investing heavily in capacity, such as the €5.0b Smart Power Fab in Dresden, which is already online and aims to support future demand without overloading the balance sheet. At the same time, ROE and margins are currently modest, the P/E multiple is high and earnings have been affected by a €654.0m one-off loss and share price volatility. That combination of growth projects, premium valuation and legal and funding risks means there is more to weigh up beneath the headline numbers.

Infineon Technologies sits at the crossroads of power grids, EVs and AI, yet its high P/E, modest margins and one off loss leave key questions unanswered. For the deeper story, see the analysis report for Infineon Technologies

XTRA:IFX P/E Ratio as at Aug 2026
XTRA:IFX P/E Ratio as at Aug 2026

Vertiv Holdings Co (VRT)

Overview: Vertiv Holdings Co provides the power systems, cooling equipment, racks and related services that keep data centers and communications networks running, with a strong focus on high density AI infrastructure across more than 130 countries.

Market Cap: US$87.6b

Vertiv stands out if you care about the plumbing of AI, not just the chips. The company supplies liquid cooling, 800V DC power systems and lifecycle services that underpin AI ready data centers, backed by a roughly US$15b backlog and recent capacity expansions in Malaysia and Italy. Earnings growth has been very strong, margins and ROE are high, and management has lifted full year guidance. This followed a recent quarter where revenue fell short of some expectations, largely due to supply chain congestion and the timing of large projects. The stock is not cheap on P/E, relies on external borrowing and has concentrated exposure to a handful of hyperscale customers. The key question is whether this mix of growth, quality and risk suits your portfolio or leaves you overexposed to one powerful theme.

Vertiv’s surge in AI ready power and cooling gear may be only half the story. The real question is what expectations are baked into the analyst forecasts for Vertiv Holdings Co and whether one critical dependency changes everything.

NYSE:VRT Earnings & Revenue Growth as at Aug 2026
NYSE:VRT Earnings & Revenue Growth as at Aug 2026

The three power grid technology stocks in this article are only the starting point. The full screener has surfaced 32 more companies with equally detailed and compelling stories inside the Power Grid Technology Stocks screener. Unlock stronger conviction by using Simply Wall St to filter for the specific catalysts, financial profiles and narratives that matter to you, so you can identify and analyze the grid stocks that best fit your own thesis.

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If Infineon Technologies or any of these companies have caught your attention, register for FREE with Simply Wall St and add your companies to a Watchlist to monitor the share price against the fair value and track any new developments as they happen. Once you've made your move, manage your holdings with our Portfolio Command Center that filters out the noise to deliver only the most critical, actionable updates. Throughout your journey, our Community allows you to filter the best ideas from thousands of investor perspectives. By uncovering hidden catalysts and risks early, you'll accelerate your decision-making and stay one step ahead of the market.

Seeking Fresh Alternatives Beyond Power Grids

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.