The Ledger

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why aren't all 27 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Insight
Jaramillo: Electrochemistry is not solved until manufactured at relevant scale and cost
“In fact, those are in many ways the same problem. Like, and you can't say that you've solved the electrochemistry until you're making it at a relevant scale You know, relevant throughput, with relevant yields, with relevant costs. Like, that's when you know yo…”
Mateo Jaramillo Jul 1, 2026 ▶ 18:06 Form Energy's manufacturing breakthrough
Disclosure
Jaramillo: Form Energy targets roughly $20/kWh system costs
“The trick is building a device and delivering a system that keeps you as close to that entitled cost as possible, and for us, that will be roughly 20 dollars a kilowatt hour. We think we can go below that, but that, that's sort of the first target that we've g…”
Mateo Jaramillo Jul 12, 2023 ▶ 13:12 A groundbreaking battery nears industrial scale
Opinion
Jaramillo: Lithium-ion cannot solve long-duration storage due to costs
“We saw what happened with lithium-ion, and we saw the progress that it is making, has made, and will continue to make, and yet, we saw a very large opportunity still in the market, and that was to address something that lithium-ion just was not addressing, can…”
Mateo Jaramillo Jul 12, 2023 ▶ 6:17 A groundbreaking battery nears industrial scale
Insight
Jaramillo: A 100-hour battery at $20/kWh drastically lowers grid portfolio costs
“What popped out of that analysis was very clearly, if you can make a battery for a hundred, for 20 dollars a kilowatt hour, you get the hundred hours and you have a very entitled place to bring a ton of value to the grid. It is differentiated. It enhances the …”
Mateo Jaramillo Jul 1, 2026 ▶ 10:40 Form Energy's manufacturing breakthrough
Assertion Not checkable as stated
Jaramillo: Form Energy's initial battery design proved 119 hours of continuous discharge
“We got the first design to work and to prove a 119 hours on discharge and hit their round trip efficiencies and that kind of thing.”
Mateo Jaramillo Jul 1, 2026 ▶ 26:30 Form Energy's manufacturing breakthrough
Assertion Not checkable as stated
Jaramillo: Form Energy has nine years of iron-air chemistry operating data
“As it happens, we happen to have the world's most robust data set on iron air chemistry and tens of millions of operating hours, you know, going, going back, Nine years now.”
Mateo Jaramillo Jul 1, 2026 ▶ 40:06 Form Energy's manufacturing breakthrough
Assertion Supported
Jaramillo: West Virginia provided $290M in financing for 750 jobs by 2028
“The reason we are in West Virginia is because the state provided two hundred ninety million dollars of financing in exchange for 750 jobs by the end of 28.”
Mateo Jaramillo Jul 1, 2026 ▶ 35:10 Form Energy's manufacturing breakthrough
Assertion Not checkable as stated
Jaramillo: AI tools compressed months of electrochemistry development into just days
“I mean, quite, quite literally, we sort of were able to do things On electrochemistry in a few days that previously would have taken us a few months.”
Mateo Jaramillo Jul 1, 2026 ▶ 39:46 Form Energy's manufacturing breakthrough
Assertion Supported
Jaramillo: Iron-air raw materials cost under $1/kWh versus $30/kWh for lithium
“You're starting with a raw cost of materials that's less than a dollar per kilowatt hour, right? This is as compared to, let's say, unprocessed minerals for lithium mine that sitting on a table is, you know, 30 bucks a kilowatt hour, something like that.”
Mateo Jaramillo Jul 1, 2026 ▶ 7:55 Form Energy's manufacturing breakthrough
Disclosure
Jaramillo: Form Energy is targeting a $20/kWh all-in system cost
“The goal, as we said, from the very beginning of the company, we always were targeting something that would be 20 dollars a kilowatt hour all in at the system level. And that we feel is still very much the entitlement there that we're headed towards.”
Mateo Jaramillo Jul 1, 2026 ▶ 6:18 Form Energy's manufacturing breakthrough
Disclosure
Jaramillo: Form Energy's $750M plant will produce 50 GWh annually
“That three quarters of a billion dollars, in the end, that should deliver a factory that produces about 500 megawatts per year which for us, these are hundred hour rated duration batteries, so so it can provide its rated power for a hundred hours, which means …”
Mateo Jaramillo Jul 12, 2023 ▶ 11:43 A groundbreaking battery nears industrial scale
Assertion Supported
Jaramillo: Form Energy's active materials cost under $1 per kWh
“The chemistry is very, very low cost, so it's less than a dollar per kilowatt hour for the active materials.”
Mateo Jaramillo Jul 12, 2023 ▶ 13:07 A groundbreaking battery nears industrial scale
Prediction Not checkable as stated
Jaramillo: Lithium-ion's falling costs make competing battery chemistries nearly pointless
“Lithium ion is going to get super, super cheap. And so unless you can point to, you know, beating lithium ion at its own game, then there's really no point.”
Mateo Jaramillo Jul 1, 2026 ▶ 5:58 Form Energy's manufacturing breakthrough
Assertion Supported
Jaramillo: Form Energy won a $150M DOE grant for manufacturing equipment
“We won a hundred fifty million dollar grant from the Department of Energy in the US for the CapEx equipment. So scaling up the manufacturing equipment. This is out of the manufacturing and energy supply grants that, that were part of the infrastructure bill.”
Mateo Jaramillo Jul 1, 2026 ▶ 35:52 Form Energy's manufacturing breakthrough
What-if
Jaramillo: Form Energy's batteries could have discharged continuously during Winter Storm Uri
“If we had been there, we would have just discharged flat out, right, for those four days, and there you go.”
Mateo Jaramillo Jul 1, 2026 ▶ 12:22 Form Energy's manufacturing breakthrough
Prediction Not checkable as stated
Jaramillo: Grid will almost certainly require multiple distinct long-duration storage types
“The way that we see the landscape playing out is you're gonna, you, you'll need several different distinct types of long duration storage almost certainly, and we're really targeting that multi-day storage.”
Mateo Jaramillo Jul 12, 2023 ▶ 26:36 A groundbreaking battery nears industrial scale
Assertion Not checkable as stated
Jaramillo: Tesla stationary storage was a short engineering putt repurposing auto modules
“We took essentially automotive designed modules and put them into the right enclosures and put them into the right, you know, control systems and, you know, thermal systems and that kind of thing. But relatively speaking, it was a pretty short engineering putt…”
Mateo Jaramillo Jul 12, 2023 ▶ 15:01 A groundbreaking battery nears industrial scale
Assertion Not checkable as stated
Jaramillo: Form Energy produced over 100,000 meter-scale electrodes during scale-up
“We ended up making more than a 100,000 electrodes.”
Mateo Jaramillo Jul 1, 2026 ▶ 24:28 Form Energy's manufacturing breakthrough
Assertion Supported
Jaramillo: Form Energy is operating half of a 1-million-square-foot factory
“And we built what today is a million square foot factory. So we're operating about half of that first 500,000 square feet.”
Mateo Jaramillo Jul 1, 2026 ▶ 15:20 Form Energy's manufacturing breakthrough
Disclosure
Jaramillo: Form Energy built grid software tools before selecting iron-air chemistry
“In fact, even before we picked The chemistry to work on, which of course ultimately became Iron Air we built software tools.”
Mateo Jaramillo Jul 1, 2026 ▶ 9:02 Form Energy's manufacturing breakthrough
Assertion Supported
Anderson: Heirloom and Form Energy broke ground on physical plants in 2023
“Heirloom down in Tracy. Forum broke ground in West Virginia. I know there's a number of plants going up in that area.”
Dr. Carly Anderson Jan 17, 2024 ▶ 14:02 Venture investors riff on headwinds, hype, and wildcards of 2023
Disclosure
Jaramillo: Form Energy is building its volume manufacturing facility in Weirton
“We've broken ground. We're laying the foundation now. The building's getting tilted up over the rest of this year. And that is where we will produce our iron air batteries at volume.”
Mateo Jaramillo Jul 12, 2023 ▶ 2:20 A groundbreaking battery nears industrial scale
Assertion Supported
Jaramillo: Form Energy acquired NantEnergy after it spent $100M on air cathodes
“We acquired a company called Fluidic Energy, later NAND Energy, which was a zinc air company. They had already spent 10 years and a hundred million dollars on just that air cathode side of things”
Mateo Jaramillo Jul 12, 2023 ▶ 18:59 A groundbreaking battery nears industrial scale
Assertion Supported
Lacey: Form Energy has raised nearly $1B from investors
“Form has also brought in the enthusiastic support of West Virginia Senator Joe Manchin, and the company has raised nearly a billion dollars from investors who are eager to back a company with the potential to change the market for batteries.”
Stephen Lacey Jul 12, 2023 ▶ 5:49 A groundbreaking battery nears industrial scale
Assertion Supported
Jaramillo: Form Energy battery cells are about one meter tall
“So these are individual cells. So the equivalent of what you would hold in your hand with a AA battery or even a lithium ion battery for us is it's about a meter tall. It's about two thirds of a meter wide and about 10 centimeters deep. And so it's a very larg…”
Mateo Jaramillo Jul 12, 2023 ▶ 1:27 A groundbreaking battery nears industrial scale
Assertion Supported
Jaramillo: Form Energy stores electricity through reversible rusting of iron
“Well, we are making a type of battery, which is based on iron and air, so we are reversibly rusting the iron as the electrochemical process inside of the battery, which stores and gives off the electricity that we need.”
Mateo Jaramillo Jul 12, 2023 ▶ 2:41 A groundbreaking battery nears industrial scale
Assertion Supported
Lacey: Form Energy Signed Agreements with Georgia Power, Xcel, Great River
“Form has inked deals with Georgia Power, Excel Energy, and Great River Energy for projects that could replace coal or gas plants.”
Stephen Lacey Jul 12, 2023 ▶ 19:59 A groundbreaking battery nears industrial scale
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