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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
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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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Spotlight

The Loud Fight Over Inaudible Data Center Noise

Why local governments are getting an earful about “infrasound”

Data center noise.
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As the data center boom pressures counties, cities, and towns into fights over noise, the trickiest tone local officials are starting to hear complaints about is one they can’t even hear – a low-frequency rumble known as infrasound.

Infrasound is a phenomenon best described as sounds so low, they’re inaudible. These are the sorts of vibrations and pressure at the heart of earthquakes and volcanic activity. Infrasound can be anything from the waves shot out from a sonic boom or an explosion to very minute changes in air pressure around HVAC systems or refrigerators.

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And more on the week’s top fights around project development.

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Heatmap Illustration/Getty Images

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  • Moss Landing looms large in Snoqualmie, a city in the Cascade Mountains where Jupiter Power is trying to build Cascade Ridge Resiliency Energy Storage, a 130-megawatt facility conveniently located on unincorporated county land right by a substation and transmission infrastructure.
  • To say residents nearby are upset would be an understatement. A giant number of protestors – reportedly 650 people, which is large for this community of about 14,000 – showed up to rally against the project this weekend, just as Jupiter Power submitted its application for the project to county regulators.
  • The opposition is led by Snoqualmie Valley for Responsible Energy, a grassroots organization that primarily has focused on the risk of thermal runaway from battery storage events and rhetoric about the Moss Landing fire. “The battery chemistry proposed for Cascadia Ridge has not been verified in any public filing. Recent incidents illustrate what is at stake,” state SVRE strategy materials posted to their website.
  • Jupiter Power has tried to combat this campaign with its own organizing coalition – dubbed “Keep the Lights On!” – that includes local union labor and some environmentalists, including volunteers for Sierra Club. This campaign has emphasized how modern engineering around battery storage is nothing like the set-up was at Moss Landing.
  • However, the concerned voices are winning out over those who want the storage project. On Wednesday night, this outcry led the Snoqualmie city council at a special meeting to vote to request via letter for the storage project to be relocated and communicate that dissent to both the local utility, Puget Sound Energy, and King County.
  • “We encourage consideration of alternate locations within the Puget Sound Energy transmission and distribution system to better address the concerns that have been raised,” read a draft version of the letter presented by councilors at the meeting.
  • Jupiter Power told me it “welcome[s] any feedback from the community” and King County said in a statement, “We understand the concerns.” PSE told me they had not “received official notification about the formal action by the City Council and we can't comment on something we have not received.”
  • This degree of on-the-ground frustration will be challenging for any higher-level decision maker in Washington State to ignore. I’d argue the entire storage sector should be watching closely.

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Holly Jean Buck.
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Her article was praised by more Abundance-leaning thinkers like Matthew Yglesias and pilloried by some of the more influential people in the anti-data center organizing space, such as Ben Inskeep of Citizens Action Coalition of Indiana. So I wanted to chat with her about the discourse around her piece. She humbly obliged.

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