The Fight

Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

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.

This article is exclusively
for Heatmap Plus subscribers.

Go deeper inside the politics, projects, and personalities
shaping the energy transition.
To continue reading
Create a free account or sign in to unlock more free articles.
or
Please enter an email address
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Hotspots

One Wind Farm Dies in Kansas, Another One Rises in Massachusetts

Plus more of the week’s top fights in data centers and clean energy.

The United States.
Heatmap Illustration/Getty Images

1. Osage County, Kansas – A wind project years in the making is dead — finally.

  • Steelhead Americas, the developer behind the Auburn Harvest Wind Project, announced this month that it would withdraw from its property leases due to an ordinance that outright bans wind and solar projects. The Heatmap Pro dashboard lists 34 counties in Kansas that currently have restrictive ordinances or moratoria on renewables, most of which affect wind.
  • Osage County had already denied the Auburn Harvest project back in 2022, around when it passed the ban on new wind and solar projects. The developer’s withdrawal from its leases, then, is neither surprising nor sudden, but it is an example of how it can take to fully kill a project, even after it’s effectively dead.

2. Franklin County, Missouri – Hundreds of Franklin County residents showed up to a public meeting this week to hear about a $16 billion data center proposed in Pacific, Missouri, only for the city’s planning commission to announce that the issue had been tabled because the developer still hadn’t finalized its funding agreement.

Keep reading...Show less
Yellow
Q&A

Why Renewables Beat Fossil Fuels for Data Centers

Talking with Climate Power senior advisor Jesse Lee.

Jesse Lee.
Heatmap Illustration

For this week's Q&A I hopped on the phone with Jesse Lee, a senior advisor at the strategic communications organization Climate Power. Last week, his team released new polling showing that while voters oppose the construction of data centers powered by fossil fuels by a 16-point margin, that flips to a 25-point margin of support when the hypothetical data centers are powered by renewable energy sources instead.

I was eager to speak with Lee because of Heatmap’s own polling on this issue, as well as President Trump’s State of the Union this week, in which he pitched Americans on his negotiations with tech companies to provide their own power for data centers. Our conversation has been lightly edited for length and clarity.

Keep reading...Show less
Yellow
Spotlight

Data Center Support Plummets in Latest Heatmap Pro Poll

The proportion of voters who strongly oppose development grew by nearly 50%.

A data center and houses.
Heatmap Illustration/Getty Images

During his State of the Union address Tuesday night, President Donald Trump attempted to stanch the public’s bleeding support for building the data centers his administration says are necessary to beat China in the artificial intelligence race. With “many Americans” now “concerned that energy demand from AI data centers could unfairly drive up their electricity bills,” Trump said, he pledged to make major tech companies pay for new power plants to supply electricity to data centers.

New polling from energy intelligence platform Heatmap Pro shows just how dramatically and swiftly American voters are turning against data centers.

Keep reading...Show less
Yellow