One Utility is Banking on a Mix of Nuclear Power, Data Centers and Big Money

Utilities used to be sleepy but steady investments that paid dividends and kept the lights on. One of them is changing the story.

WEC Energy Group does not look like the center of the artificial-intelligence economy. The Milwaukee-based holding company, with a $34.6 billion market capitalization, 4.8 million retail customers and $52.8 billion in assets, sells electricity and natural gas across Wisconsin, Illinois, Michigan and Minnesota.

It has met or exceeded the top end of its earnings guidance for 22 consecutive years and calls itself “a premier energy company in America’s heartland.” It is the kind of steady, regulated utility that dividend investors have owned for decades and rarely thought about.

Its September 2026 presentation to investors, filed Friday with the Securities and Exchange Commission and titled “Transforming the Future,” is a document about the three forces reshaping American power at once: the data centers chasing electricity, the nuclear plants being pulled back to life to feed them, and the investors racing to finance both.

In many ways, it’s the story of generational and industrial change happening now across America.

The company traces its roots to 1896 and the Milwaukee Electric Railway and Light Co. It comes from a tradition of sleepy utilities that drew investors for two reasons: it kept the lights on and paid them steady, rising dividends. 

Now it’s putting itself dead center in the fastest and, perhaps, riskiest American Buildout in generations. 

The demand. The company’s clearest message for investors now is about load growth. WEC now expects to add roughly 3.9 gigawatts — about 45 percent more electric demand — between 2026 and 2030, after years in which utility sales barely moved. 

The single largest driver is Microsoft’s data center campus in Mount Pleasant, Wisconsin, which the company ties to more than $20 billion in announced investment, 15 buildings beyond its first two phases, and more than 2,200 acres purchased so far; Phase 1 began operating in April 2026. 

A second campus in Port Washington, built by Vantage Data Centers as part of the OpenAI–Oracle “Stargate” expansion, carries more than $15 billion in expected investment across four buildings and site potential of up to 3.5 gigawatts. WEC now lists Microsoft, Oracle, Amazon and Vantage among the “industry leaders” it powers.

To serve those customers without pushing the cost onto households, Wisconsin regulators in May approved a Very Large Customer tariff — a structure for customers with 100 megawatts or more of new load that ties them to dedicated new generation and, for lower-rated customers, requires financial security covering the utility’s investment. It is regulatory machinery built specifically for hyperscalers.

The nuclear. WEC’s own contribution to the nuclear revival is incremental but real. It agreed with NextEra Energy to extend its power-purchase agreement for the Point Beach nuclear plant — about one gigawatt of carbon-free capacity — pushing Unit 1’s term to 2050 and Unit 2’s to 2053, subject to state approval. That is a bet that existing reactors are worth keeping for another generation rather than retiring.

The bolder bets are being made elsewhere, and American Buildout has been reporting them. Google struck a 25-year agreement with NextEra for roughly 615 megawatts from the Duane Arnold Energy Center in Iowa — a plant shut down in 2020 after storm damage and now targeted for a first-quarter 2029 restart. 

No U.S. nuclear plant that has entered decommissioning has ever been brought back, and the effort faces a challenge at the Nuclear Regulatory Commission from Physicians for Social Responsibility Iowa. (American Buildout: Google wants to restart a reactor for a data center; some Iowa doctors say not so fast.) Microsoft, meanwhile, signed a 20-year PPA with Constellation Energy that is financing the restart of Three Mile Island Unit 1 — rebranded the Crane Clean Energy Center — for about 835 megawatts. The two deals share a pattern: a hyperscaler with effectively unlimited capital underwrites the reopening of a reactor whose output it will largely consume.

The frontier. How far out is the market willing to look for the nuclear piece to become mainstream? Consider ONE Nuclear, a company American Buildout has covered closely. Founded in February 2025, it has no operating history, no revenue, and nothing under construction. 

Its pitch is a “gas-to-nuclear bridge”: drop natural-gas reciprocating engines next to a data center within about 12 months, then swap in small modular reactors at the same site later. It projects $660 million in annual revenue and $361 million in EBITDA from a single one-gigawatt site at roughly $95 a megawatt-hour, and it is going public through a $1 billion all-stock merger with Hennessy Capital Investment Corp. VII, to trade on Nasdaq as OTEN.

 Its named sites — more than 1,000 acres in East Texas, 6,000 acres under a nonbinding letter of intent in New Mexico with talk of ten gigawatts, and a 2.88-gigawatt project in Louisiana — carry no signed power contracts yet. A pre-revenue reactor developer is valued at a billion dollars because it sits at the intersection of AI and nuclear. That is fear of missing out, priced.

The money. WEC is the investment-grade anchor of the same trade. It is rated A- by S&P and Baa1 by Moody’s, and it markets its inclusion in S&P’s High Yield Dividend Aristocrats Index and a 23rd straight annual dividend increase, to a $3.81 annual rate, directly at yield-seeking investors. 

To fund the largest five-year capital plan in its history — $37.5 billion — it plans $14.2 billion to $14.8 billion in incremental debt, including $5 billion to $6 billion of junior subordinated notes, hybrid securities that rating agencies treat as part equity. 

The speculative end of this buildout runs through the developers and startups clustered around it: SPAC shares in pre-revenue nuclear firms and project debt raised only after a final investment decision. The same demand story pulls in conservative dividend money at one end and venture-style bets at the other.

Put together, WEC’s message to investors is a map of how the pieces fit. Data centers are creating demand no utility has seen in decades. Nuclear power — from a life-extended plant in Wisconsin, to a resurrected reactor in Iowa, to a reopened one in Pennsylvania, to a startup selling reactors it has not yet built — is being marshaled to meet it. 

And a wave of capital, from a 23-year dividend-raiser to a billion-dollar bet on a company with no sales, is paying for all of it. The heartland utility turns out to be a good place to watch the whole trade at once.