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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

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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