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Q&A

Eric Dresselhuys, CEO of ESS, Makes the Case for Iron-Flow Batteries

An interview about the politics of energy storage — and whether different technologies can help

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Eric Dresselhuys
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While in Anaheim for RE+ last week, I met with Eric Dresselhuys, CEO of long duration iron-flow battery storage manufacturer ESS Inc. We chatted about battery fires, community buy-in, and the future of China policy. I came in expecting optimism and left feeling we need a lot more conversations like this one.

The following is an abridged version of our conversation that has been edited for clarity.

How does your product address the opinion that battery storage has a buy-in problem?

It’s not so much an opinion as just reporting the obvious, which is that lithium-ion batteries on the grid have a buy-in problem. Maybe if you’re in rural western Australia nobody cares because there are no human beings around, but if you look at the need for energy storage to facilitate the energy transition, it’s pretty clear we have to put batteries all over the place and specifically close to where human beings live. And that’s a problem.

Can iron-flow help solve that problem? I think unequivocally we can. It’s a very different architecture. It’s a battery that’s really designed from the beginning to operate as a grid backup battery. If you go back to look at lithium, it was never designed to go onto the grid. It was designed to go into camcorders, phones. This is not the technology I think anybody would’ve picked for the grid if they had started from scratch.

Are you seeing any change in demand for your product from protests over lithium battery projects?

I think it’s the old gag of all politics are local. The politics of siting is a local problem. What’s simultaneously true is adoption of storage on the grid is growing at a phenomenally high rate. And yet there are stories [about opposition] all over the place. There was just one up in Marin County, California, where the community said it’s in an area adjacent to wetlands. And they said you know what? We’re just not going to put a–

But are these communities opposed to lithium storage actually choosing iron-flow over these projects, or are they just saying no to any development?

Right now, they’re just saying no. The communities are not going to solve the problem. They’re going to tell you what is unacceptable and it’s going to be somebody else’s job to solve the problem.

I’ll use Schiphol Airport in Amsterdam [as an example]. They said, we have thousands of gallons of jet fuel laying around. And people. And airplanes. We can’t put a lithium battery out here. So they’re using an iron-flow and sought out a non-lithium battery to solve their energy storage problems because it was safer.

China policy looms large over the future of U.S. battery supplies. What do you think the final endgame will be of our approach to China’s dominance in this business segment?

It’s a great question that I don’t think I know the answer to. I think the next step is to try and get the playing field somewhat level. The amount of subsidy that goes into renewables in general and batteries in particular in China is daunting. People talk about the IRA and all these things as if it’s a lot of money, but it’s a pittance compared to what China is putting in.

Getting the playing field a little more level in the short term through a combination of incentives here and tariffs coming on will be a next step. Until we get carbon accounting — cradle-to-grave carbon accounting — it’ll be hard to get things totally level because in the U.S. we enforce environmental laws and we don’t employ prison labor to build [these] things. Until we get that full ESG accounting, I think there’s going to be some limitation.

Okay one fun question – what was the last song you listened to? Keeping ‘em honest here at Heatmap News.

“Impossible Germany” by Wilco.

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Q&A

Why the Wilderness Society Backs a Data Center Moratorium

Talking with Dan Hartinger, the land conservation group’s senior policy director.

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The Q&A subject.
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This week’s Q&A is with Dan Hartinger, senior policy director for The Wilderness Society, a prominent land conservation organization in D.C. that this week called for a moratorium on data center development on public land. The public statement was relatively scant on details about the group’s stance, and a decade of reporting on policy in Washington has taught me that its positions are quite influential, especially in more traditional outdoor recreation and conservationist circles that are also often bipartisan. So I reached out and asked if someone could further explain the society’s position, and Dan obliged.

The following chat was lightly edited for clarity.

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Hotspots

Data Center Outrage Catches Up to Renewables Outrage in Michigan

Plus more of the week’s biggest development fights.

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The United States.
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1. Central Michigan – I regret to inform you of this back-and-forth between candidates running for Congress and a would-be constituent because it’s a warning sign for the renewable energy sector (and sort of broke my brain).

  • This week brought the first and likely only debate between Rep. Tom Barrett and Sunrise Movement cofounder Will Lawrence, who are locked in a tight contest over the Michigan 7th congressional district. As I’ve written, their race is a must-watch not only for control of the U.S. House but also the political fortunes of the data center sector.
  • The debate contained a remarkable exchange: Moderators played taped remarks from Paula Caltrider, identified as “a local resident” in the city of Mason to ask the candidates a question about data centers. Instead, she offered a comment. “You know, you can’t be a part of this no data center movement without renouncing the large solar farms and dangerous battery storage facilities that power these data centers.” (Quick TL;DR on Caltrider: She’s been quoted in national media coverage of the data center backlash and last year won a legal settlement after allegedly being fired for refusing a vaccine mandate.)
  • Barrett then ran with Caltrider’s baton. “I appreciate Paula linking these together, the stripping away of local control that took place in pursuit of this Green New Deal agenda in Lansing that took away control from communities” – a reference to the state’s primacy law that other Michigan Republican candidates have opposed.
  • Lawrence, whose support for a federal data center moratorium made him a national political test case, did not take the bait, nor did he criticize renewable energy. Instead, this part of the debate became a tit-for-tat about whether the sitting congressman once backed tax breaks for data centers. “He stuck his finger up into the wind, saw which way it was blowing, did a complete 180 on this issue,” Lawrence said. Then Barrett and Lawrence got into a confusing back-and-forth about whether the Inflation Reduction Act was a giveaway to data centers.
  • To the best of my knowledge, this is the first time the Data Center Trojan Horse has reared its ugly head on any kind of prominent debate stage, but it won’t be the last. For example: The Wisconsin gubernatorial debate is Oct. 21, and we’ve warned you about that one.

2. Doña Ana County, New Mexico – I suggest you pay closer attention to the federal permitting fight playing out over Oracle’s Project Jupiter.

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Spotlight

The Data Center Backlash Is Coming for Permitting Reform

The Senate’s compromise bill enters the chat at a moment when federal land and anti-pipeline advocates are already quite activated.

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The Capitol and a data center.
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The AI data center backlash is getting louder in D.C. ahead of the midterms – and it’s poised to collide head-on with the new permitting reform deal being negotiated in Congress.

This week, major environmental advocacy organizations are taking large public steps to lean in on the data center fight. The League of Conservation Voters and Natural Resources Defense Council, I’ve been told, are imminently announcing a $250,000 ad buy in the Washington, D.C. market focused entirely on decrying fossil fuel-powered data centers and Trump administration policies to speed up their construction. The Wilderness Society, a prominent land conservation organization, announced it now supports a moratorium against data centers on “public lands” focused on the roughly half billion acres under the Interior Department’s stewardship. And Earthjustice on Thursday did a detailed report claiming that 80% of the data centers under development “bringing their own power” are going to rely on gas generation.

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