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Q&A

Data Centers, Meet Stranded Solar

Chatting with Next10’s Noel Perry and Stephanie Leonard about a novel renewable energy play.

The Q&A subjects.
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This week’s Q&A is a two-fer, featuring Noel Perry and Stephanie Leonard from the California environmental nonprofit Next10. They released a report this week in partnership with researchers at the University of Pennsylvania pitching an idea I find fascinating: Data center developers could save money and time if they just built their projects close to existing renewable energy projects that are curtailed from putting power onto the grid because of bottlenecks and capacity issues. I reached out to Next10 to chat about the proposal and how it could inform discussion not just in California, but also in other states.

The following conversation has been lightly edited for clarity.

In terms of best practices, help us understand what you’re getting at with the report.

Stephanie Leonard: Another project we do is the California Green Energy Index, and we track the state’s emissions, renewable energy deployment, and other things. One of the things we track is curtailment, which continues to rise every single year.

Curtailment is an ongoing problem for California. It’s great we’re adding so much solar to the grid, but we’re ending up with these stranded assets. A lot of the solar farms are in the southern part of the state — there’s the Path 15 corridor, which connects the southern California grid to the northern part of the state and is at overcapacity. So we wanted to look at ways to take advantage of this without expensive transmission buildout. Is there a way we can move the energy use to where the curtailment is happening, rather than build wires to energy use?

Noel Perry: Go back to November 2024, we sponsored a conference at Santa Clara University here in the Bay Area focused on the environmental impacts of data centers. Back then it actually felt early. I mean, the proliferation of data centers has taken over the world. Two years ago, this wasn’t as much of a thing. And there were three researchers there, one of whom – Ben Lee from the University of Pennsylvania – wound up making this report we’re publishing now. He came up with this idea of how excess energy capacity could be used for data centers, which sounded interesting.

How is transmission a bottleneck here, specifically?

Leonard: We do know by 2039 that Path 15 is expected to be congested for 84% of the year. That’s even with planned upgrades from [California’s grid operator]. It’s going to continue to get more and more congested, [and] we’re going to continue to have more of these stranded assets. It’s more of this cheap solar that can’t get to the population centers.

We can site data centers in congested areas — that would be a good outcome. And a lot of these projects are set to be powered by fossil fuels; I’ve seen reports that about 75% of all planned natural gas build-out across the U.S. is for data centers, specifically. Not only would this be taking advantage of offloading curtailed energy, but this would ensure new data centers are using renewable energy. The report also recommends battery storage so they can store the renewable energy, too.

Is this different from the “bring-your-own-energy” approach to data centers and energy?

Leonard: I would consider this more of a bridge solution. The report doesn’t evaluate the bring-your-own-energy model, but this is the kind of thing that can be done more quickly. The resources are already there. The infrastructure is already there.

When it comes to turning these recommendations into policy, what’s the mood in California like? Do they want to take up solutions like these?

Perry: There’s definitely interest. We would hope that this idea of putting data centers near energy that is curtailed, near where congestion is, that we hope would be looked at not only in California but other states. This idea could be a model in some fashion.

As you know, we have a lot of renewable energy – more than maybe a lot of states. So in a way, California is a better place for data centers than other places if you want them to be powered by renewable energy. That doesn’t mean all Californians want data centers to come here, but that’s an important point to make.

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Hotspots

People Who Hate Renewables Hate Data Centers, Too

And more thoughts on the week’s most notable fights around project development.

The United States.
Heatmap Illustration/Getty Images

1. Pinal County, Arizona – If you can’t build a solar or a wind farm somewhere, it’s really hard to get a data center built there too.

  • That’s the lesson readers should take away from the situation in Pinal County, where historically speaking at least 5 solar projects have been withdrawn over the years after facing local opposition, according to Heatmap Pro data. You should expect some data centers to potentially wind up in the same graveyard.
  • On Wednesday, the Pinal County Board of Supervisors rejected the La Osa Energy Center, a large proposed data center and gas-fired power complex. The board in this deep red rural desert community is rock-ribbed Republican. Only one supervisor on the board dissented, citing private property rights concerns.
  • The county currently has a restrictive ordinance against data center development unless they are in industrial areas, but has not yet approved a project since the ordinance was crafted, making this now a de facto no-go zone for developers. This went against the requests of the county zoning board, which recommended making the project site as industrial. If that pattern sounds familiar to you, that’s because you recognize it from the many cases we’ve seen in solar and wind development where political officials similarly override zoning staff.

2. St. Joseph County, Indiana – Thousands of miles away from Arizona, a similar division is dominating the fight over whether to enact a 2-year moratorium on data centers in the county home of South Bend.

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Q&A

What Nevada’s Democratic Candidate for Governor Would Do About Data Centers

A conversation with Nevada attorney general Aaron Ford

Aaron Ford.
Heatmap Illustration

This week’s conversation is with Nevada attorney general Aaron Ford, the Democratic candidate for governor in the state. His campaign reached out recently asking if I wanted to chat about what he’d want to do on data center and energy policy, which is essentially catnip for a reporter like me. So we hopped on the phone and chatted about his approach to regulation as he seeks to oust the sitting GOP governor Joe Lombardo.

The following conversation was lightly edited and abridged for clarity.

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Spotlight

The Top Five States to Watch for Clean Energy Policy

What’s the matter with Wisconsin?

The Texas statehouse and clean energy.
Heatmap Illustration/Getty Images

The most important states to watch for the future of renewable energy policy sit at the nexus of the data center backlash.

Over the last week, I’ve pored over what I believe to be the top five most important spaces to watch for all things utility-scale solar, battery storage and transmission development: Texas, California, Arizona, Alabama and Wisconsin. I selected these five states because they either have some of the largest generation capacity (Texas, California, Arizona) or crucial statewide elections that could decide not only the future of renewable energy in the state but elsewhere across the country (Alabama, Wisconsin).

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