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Alliant targets 1 gigawatt of new data-center contracts within six months

Saturday, October 31, 2026 · 6 min read

Alliant Energy expects to sign about 1 gigawatt of new data-center contracts within six months, on top of 3.4 gigawatts already contracted — and it raised its investment plan 19% to keep up.

Alliant targets 1 gigawatt of new data-center contracts within six months

The News

Reuters reported on October 30 that Alliant Energy expects to sign about 1 gigawatt of additional data-center demand within six months, adding to 3.4 gigawatts already contracted with Google, Meta and Blackstone-backed QTS. The new load would ramp up between 2029 and 2031, and Alliant raised its 2027–2030 capital spending forecast 19% to $15.9 billion to serve it. System peak demand is expected to rise more than 60% by 2031. Meta is also expected to begin taking transmission service in Wisconsin in the first quarter of 2027.

The announcement is the utility-side mirror of the hyperscaler spending boom. While Alphabet, Meta, Microsoft, Amazon and Oracle disclose trillions in commitments for buildings and equipment, someone has to supply the electricity — and Alliant's numbers show that side of the ledger is growing just as fast. A 19% capex increase is not a routine revision; it is a utility re-planning its next four years around a single new customer class.

The timing also matters. Alliant's data-center story is distinct from the $5.1 billion Energy Department loan for its gas plants, storage and grid upgrades that closed earlier in October and was covered here on October 29. That loan funds physical capacity; the 1-gigawatt target is new contracted demand to fill it. One is supply, the other is sales — and Alliant now says both are accelerating.

While Big Tech counts its $3 trillion in commitments, Alliant just showed the other side of the bill: someone has to generate the power.

Why It Matters

The story matters because power is the binding constraint on the AI buildout. Data centers can be announced faster than they can be plugged in, and the utilities that can actually deliver gigawatts on a schedule hold a scarce asset. Alliant's contracted book — 3.4 gigawatts signed, another gigawatt coming — is evidence that hyperscalers are choosing its territory and paying for the privilege. For a regulated utility, that contracted demand converts directly into approved investment and, over time, earnings.

The capex raise is the second signal. A 19% increase to $15.9 billion is a utility telling regulators and investors that its old plan is obsolete. The grid Alliant planned for homes, farms and factories is becoming a grid for data centers, and the investment to serve that load is now the company's growth engine. Utilities earn regulated returns on capital they deploy, so a bigger capex plan, backed by signed contracts, is a bigger earnings base — provided regulators approve the spending and the customers arrive on schedule.

The third reason is the read-through for the data-center landlords. Equinix and Digital Realty, named here as read-through tickers, sell space and interconnection inside data centers; their tenants' appetite depends on power being available where the buildings are. Alliant's signings say the power will be there in the Midwest, on a timeline that matches the hyperscalers' buildout. The AI infrastructure trade has many layers — chips, buildings, networks — and this week the power layer showed it is keeping pace.

Analyst's Take

The verdict is Bullish. Contracted demand is the strongest signal a utility can give: 3.4 gigawatts already signed and another gigawatt expected within six months means Alliant's growth is not a forecast but a backlog. Raising capex 19% to $15.9 billion is the cost of serving it — and regulated utilities earn their returns on exactly that kind of investment. The risk is execution and timing, not demand.

What to watch next is the signing itself. Alliant says within six months; the names, sizes and start dates of those contracts will show whether the 1-gigawatt target is one big customer or several, and how much of the load lands before 2030. Either way, the Midwest grid's transformation from farmland and factories to AI infrastructure took another concrete step this week — and Alliant's shareholders now own a piece of the power behind the AI boom.

By The Numbers

1 GWNew data-center contracts Alliant expects to sign within six months
3.4 GWData-center demand already contracted with Google, Meta and QTS
$15.9BAlliant's raised 2027–2030 capex forecast, up 19%
60%+Expected growth in system peak demand by 2031
2029–2031Window when the new data-center load ramps up
Q1 2027When Meta begins taking Wisconsin transmission service

FAQ

What is a gigawatt?

A gigawatt is 1,000 megawatts of electricity — a unit of power demand. A single gigawatt of data-center load is an enormous new customer for a utility: roughly the output of a large power plant, dedicated to buildings full of servers.

Why do data centers need utilities like Alliant?

AI data centers draw power at a scale few other customers match, and they need it constantly, day and night. Utilities sign long-term contracts to supply that power, then build the generation, transmission lines and grid upgrades to deliver it.

Who are Alliant's data-center customers?

Google, Meta and Blackstone-backed QTS are already contracted for 3.4 gigawatts. The new 1 gigawatt would add to that book, with the load ramping up between 2029 and 2031.

What is capex, and why did Alliant raise it?

Capital expenditure is money spent on long-lived assets — power plants, lines, substations. Alliant raised its 2027–2030 capex forecast 19% to $15.9 billion because serving the new data-center load requires building more infrastructure.

What does 'system peak demand up more than 60% by 2031' mean?

Peak demand is the highest electricity use on the grid at any one moment. Alliant expects its peak to grow more than 60% by 2031, driven largely by data centers — a transformation in what its grid is for.

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Source: Reuters via WIXX

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