TL;DR · 30-second read

The Short Version

Google’s parent company is spending around 13 billion euros on data centers in Finland. These are warehouse-sized buildings packed with computers that run artificial intelligence.

Finland is cold, and that matters. For much of the year the outside air is enough to stop the machines overheating, so far less power goes to air conditioning. The country also has plenty of low-carbon electricity.

Investors are now guessing who gets paid. One small Finnish firm connects these sites to the power network. Two much larger American firms supply electricity and build hardware, but neither has said it does any work in Finland.

Simply Wall St reported on September 10, 2026 that an Alphabet-backed €13 billion push into Finnish AI data centers has turned a quiet corner of the Nordic market into a live test of how digital infrastructure and power providers absorb sudden, large-scale demand. The article named three stocks as the most directly exposed to the theme: US independent power producer Vistra, Finnish grid and connectivity contractor Enersense International Oyj, and contract manufacturer Flex. A screen behind the article surfaced 39 further companies tied to data center build-outs and grid upgrades.

The three names sit at very different points on the value chain and at very different sizes. Vistra carries a market capitalisation of about US$50.9 billion on roughly US$19.2 billion of revenue and supplies power and gas to around 5 million customers. Flex is valued at about US$42.2 billion and reports US$7.2 billion of revenue from Cloud and Power Infrastructure, US$11.6 billion from Integrated Technology Solutions and US$10.5 billion from Regulated Manufacturing Solutions. Enersense, the only one of the three actually operating in Finland, is worth about €71 million and books roughly €189 million of revenue there.

Executive Summary

The story is less about Google than about who converts a headline capital number into invoiced work. A €13 billion programme in Finland implies years of substations, transmission connections, transformers, switchgear, cooling plant and rack integration long before a single model is trained. The market’s instinct is to reach for liquid, well-known proxies. The names investors actually reach for are not always the ones standing next to the excavator.

Of the three stocks in focus, only Enersense has disclosed Finnish data center power work. It supplies power integration for atNorth’s 430 megawatt FIN04 site and works on projects for Finland’s national transmission operator. Vistra’s relevance is thematic and American: it signed 20-year power purchase agreements in January 2026 to supply Meta with more than 2,600 megawatts of nuclear electricity across three plants in the PJM grid region, described as the largest nuclear uprate ever underwritten by a single corporate customer. Flex’s relevance runs through hardware, and through its May 2026 plan to spin its Cloud and Power Infrastructure division into a separate listed company.

For infrastructure buyers, the signal worth taking is that the Nordic constraint has shifted. The scarce inputs are no longer cheap land and cold air, which Finland has always had. They are grid connection capacity, transformer lead times and the engineering firms qualified to do the interconnection work. That is where a small contractor with a €71 million market value becomes strategically interesting and financially fragile at the same time.

Why Finland Keeps Winning the Power-and-Cooling Argument

Finland’s advantage starts with physics. In a hot climate, a data center spends a large share of its electricity running mechanical chillers to remove the heat its servers produce. In a cold one, outside air does much of that work for free for most of the year, a technique the industry calls free cooling. The result shows up in power usage effectiveness, the ratio of total facility power to the power actually consumed by computing equipment. A lower ratio means less electricity wasted on overhead, and in the Nordics it is structurally lower than in Virginia, Texas or Singapore.

The second advantage is the grid itself. Finland’s electricity is heavily nuclear, hydro and wind, which suits hyperscalers with carbon-free energy commitments, and its industrial history left heavy transmission connections in places that once served paper mills and smelters. Fingrid, the national transmission system operator, is the gatekeeper for connecting large new loads, and interconnection work is exactly what Enersense sells. The atNorth FIN04 site, at 430 megawatts, is evidence that a genuine Finnish cluster is forming rather than a single anchor tenant.

There is a real limitation, and it is geographic. Finland is far from Europe’s population centres, which adds network latency, the delay between a user’s request and the response. That matters little for training large models, which is a batch process indifferent to a few extra milliseconds, and matters considerably more for latency-sensitive inference serving consumers. A Nordic strategy is therefore usually a training and heavy-compute strategy, with inference capacity placed closer to users. Investors reading a €13 billion figure as evenly distributed European capacity are reading it too generously.

One of These Three Actually Works in Finland

Enersense designs and builds grid connections, substations and storage, generating roughly €81 million from Connectivity and €63 million from Energy Transition. Set its €71 million market capitalisation against a €13 billion programme and the asymmetry is obvious: even a rounding error of that capital budget, landing as contract revenue, would be transformative. That asymmetry is precisely why such stocks move violently on thematic news, and why the move often runs ahead of any awarded work.

The harder question is capacity rather than opportunity. Large interconnection projects consume working capital before they generate cash, require performance bonding, and expose a contractor to fixed-price risk on materials with long and volatile lead times, transformers and high-voltage switchgear above all. A company of this size has limited balance sheet with which to absorb a cost overrun on a marquee project. The upside of being small in a big theme and the risk of being small in a big theme are the same fact viewed from two sides.

Vistra and Flex, by contrast, have no disclosed Finnish operations. The argument for including them is a demand argument rather than a geographic one: AI data center build-outs lift power producers and infrastructure manufacturers wherever they occur. That is a defensible thesis, but it is a different thesis from the headline. An investor buying Vistra on a Finland story is buying US merchant power exposure with a European narrative attached, and should price it accordingly.

The Power Trade Is Mostly a United States Trade

Vistra’s appeal to this theme rests on dispatchable generation, meaning plants that can be turned up or down on command rather than depending on wind or sun. Data centers need power that is available every hour, and the fleets capable of contracting that reliably for decades are few. The January 2026 agreements with Meta illustrate the model: more than 2,600 megawatts of nuclear output committed for 20 years across three plants in PJM, the market coordinating electricity across much of the US mid-Atlantic and Midwest. A nuclear uprate, in this context, means raising an existing reactor’s output rather than building a new one, which is faster and cheaper than greenfield construction.

The revenue mix repays a closer look. Retail contributes about US$14.9 billion and Texas roughly US$7.8 billion against US$19.2 billion of total revenue, which is normal segment reporting where internal sales are eliminated at the group level, but it is a reminder that Vistra is substantially a retail energy business with a generation fleet attached, not a pure merchant generator. The AI narrative attaches to one part of the enterprise, not all of it.

The central risk is duration. Twenty-year contracts convert a commodity business into something resembling an infrastructure annuity, and the market has increasingly valued it that way. That re-rating rests on assumptions about long-term data center load growth and contracted pricing holding. If load growth arrives slower than forecast, or if new supply and grid upgrades compress scarcity pricing, the earnings power implied by today’s valuation becomes harder to defend. Long contracts protect the volumes already signed. They do not protect the multiple applied to everything not yet signed.

Flex, the Spin-Off, and the Appetite for Pure Plays

Flex builds the unglamorous physical layer: power distribution, cooling systems and rack integration that sit behind hyperscale spending. Its Cloud and Power Infrastructure division generates US$7.2 billion, roughly a quarter of the approximately US$29.3 billion across its three reported segments. The May 2026 plan to separate that division into an independent public company is the clearest structural response yet to a valuation problem facing every diversified manufacturer with an AI-exposed unit.

The logic is straightforward. Investors will pay a higher multiple for a focused data center infrastructure supplier than for a conglomerate that also makes automotive and healthcare hardware, and separation surfaces that value rather than averaging it away. Public markets have limited direct ways to own the power and cooling hardware layer, so a listed pure play should find willing buyers.

The trade-off is that concentration removes the cushion. A standalone data center infrastructure business carries the full weight of hyperscaler capital expenditure cycles, customer concentration among a small number of very large buyers, and the working capital intensity of ramping production against lumpy orders. The remaining business loses its highest-growth story and must be valued on its own merits. Both halves face a market test that the combined company never had to sit.

Background

Finland has attracted large-scale computing for well over a decade. Google has run a data center campus at Hamina, on the southern coast, since converting a former paper mill site there, and the country has since drawn a wider cluster of operators including atNorth. The appeal has been consistent: a cold climate that reduces cooling load, a largely nuclear, hydro and wind electricity mix, and industrial sites already served by heavy transmission infrastructure. Fingrid operates the national transmission grid and controls the connection process for very large new loads, which makes interconnection engineering a bottleneck resource rather than a commodity service.

The companies now attached to the theme come from three different traditions. Enersense is a Finnish engineering and contracting business that grew out of energy and telecom infrastructure work and now sits at the junction of grid upgrades, storage and data center power connections. Vistra emerged from the restructuring of the Texas utility sector into one of the largest US independent power producers and retail energy suppliers, and has spent the past two years converting nuclear and gas capacity into long-dated corporate contracts. Flex is a decades-old contract manufacturer that built its business assembling hardware for others and has recently found its power and cooling systems unit growing faster than the rest of the group.

Sources

Source: 3 Stocks Retail Investors Are Watching After Google’s Finland AI Data Center Push — Simply Wall St, September 10, 2026, covering the three companies most exposed to an Alphabet-backed €13 billion Finnish AI data center programme.