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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

Eric Dresselhuys
Heatmap Illustration

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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Hotspots

Data Centers Are the Election Year Villain

And more of the week’s top news around project fights.

Data Centers Are the Election Year Villain
Heatmap Illustration

1. Kansas City, Missouri – Data centers are so toxic that politicians are using them as boogeymen in totally unrelated policy discussions.

  • All week I’ve been thinking about Missouri, where a widely-screened TV campaign ad is airing screeds against AI hyperscale projects to sell a constitutional amendment initiative up for a vote in this year’s November elections. “That hum is the sound of Big Tech making money on online gambling, for porn,” says a nameless man in the ad. “Amendment 5 makes Big Tech pay so you don’t have to. Yes on Amendment 5.”
  • What does Amendment 5 do? Based on the ad, you would think it was focused on tax exemptions for data centers. But no – a yes vote supports cutting the state income tax, a proposal backed by Republican Gov. Mike Kehoe.
  • The ad is misinformation and a mind-blowing use of a confusing conversation around tech infrastructure most were unfamiliar with before this year. Per reporting by the Missouri Independent, the state’s existing tax exemptions for data centers would stay in place if the amendment was adopted.
  • My gut tells me this is only the beginning of the data center industry’s transformation into an election year villain.

2. Ingham County, Michigan – We have our first major anti-data center candidate in a Democratic congressional primary.

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Q&A

Why Data Center NDAs Are a Big Mistake

A conversation with Grant Gutierrez of Carbon Direct

Why Data Center NDAs Are a Big Mistake
Heatmap Illustration

This week’s conversation is with Grant Gutierrez, head of community impacts at carbon management company Carbon Direct. This week Carbon Direct published a white paper Gutierrez authored on opposition around data centers he’s studied. His research reinforces much of what Heatmap Pro has uncovered, but I was particularly intrigued by a topline finding – that transparency is the most common thread in the 46 data center fights he looked into. Was he seeing what I’ve been seeing? So I asked him to hop onto a Zoom call and let me know his thoughts.

The following conversation was lightly edited for clarity.

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Spotlight

Data Centers Have a Farmland Problem, Too

It’s not just renewables anymore.

A data center and a farm.
Heatmap Illustration/Getty Images

The movement against data centers is raising up a raison d'etre of the anti-renewables movement: protecting would-be farmland.

Farm owners and operators across the U.S. are winning national headlines almost every week for rejecting big dollar offers from data center developers. In Hanover County, Virginia, protestors are chanting “Grow Tomatoes, Not Data Centers.” In Pennsylvania and elsewhere, Republican legislators are mulling proposals to block the sale of so-called “prime farmland” for data center development. In Texas, the fight over data center development has engulfed the race for the state’s ag commissioner seat. In the Midwest, where agriculture reigns supreme, statewide races and congressional campaigns are slowly but surely being defined by the issue. Like in Nebraska where Austin Ahlman, an independent candidate running for Congress in Nebraska’s first district, told me he believes the data center backlash is reflective of a populist politics that broadly criticize elites and top-down control of the economy: “I think sometimes people misunderstand the anxieties of rural Americans when it comes to these data centers because a lot of their fears are about control long term.”

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