Data Centers

Stop unchecked data center development

Healthier Future for Wisconsin

PSC requires Alliant Energy to use tariffs for future data centers

May 7, 2026

All future hyperscale data centers in Alliant Energy’s service territory must be served through a standardized tariff, rather than individual contracts.…

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Into thin air

May 6, 2026

As AI data centers are built in Wisconsin, water withdrawals will rise from increased power generation and greater demand on municipal public water supplies.  …

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The Defender Podcast episode 74: The Truth About AI Data Centers and Our Water

The Truth About AI Data Centers and Our Water

April 28, 2026

In this episode, Amy talks with a researcher who took a deep dive into the water impacts of Wisconsin's AI data centers.…

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State regulators make substantial modifications to We Energies’ AI data center tariff plan

April 24, 2026

Case will likely have implications across the state.…

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Port Washington data center could harm Wisconsinites’ health to the tune of $1.3 million annually

April 14, 2026

New analysis from Clean Wisconsin finds that air pollution from diesel generators at the hyperscale Vantage data center in Port Washington could cause $960,000 to $1.29 million in annual public health costs statewide. …

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The price of powering AI

April 7, 2026

Wisconsin is bracing for unprecedented electricity demand driven by massive new AI data centers.…

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Episode 72: What's a data center tariff and why should you care?

What’s a Data Center Tariff and Why Should You Care?

March 23, 2026

In this episode, a deep dive into data center tariffs at the Public Service Commission and what they mean for you.…

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Ep 67 The Nuclear Option

The Nuclear Option

February 9, 2026

There is a lot of new excitement around nuclear energy these days, and no coincidence, it comes as we face staggering energy demands from AI data centers. Now, the Trump Administration is relaxing environmental and safety regulations for new nuclear reactors. In this episode, a look at what would happen to our environment - and our energy bills - if utilities race to meet AI demand by building more nuclear reactors.…

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Why nuclear power isn’t the solution to data center demand

January 23, 2026

The AI boom (or bubble, depending on your perspective) has spurred renewed interest in building new nuclear reactors to supply the enormous amount of energy data centers use.…

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Defender Episode 63: How Caledonia, WI Defeated a Data Center

How Caledonia Defeated a Data Center

January 12, 2026

How a small Wisconsin community stood up to one of the most powerful companies in the world… and won. And what we can all learn from their fight.…

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