Sign In or Create an Account.

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

Technology

Charm Is Working With the U.S. Forest Service on a Carbon Removal Pilot

Fire prevention comes as part of the deal.

Charm Industrial processes.
Heatmap Illustration/Charm Industrial

Deep in Inyo National Forest in the Eastern Sierra Nevada are a couple of bright white domed tents protecting an assemblage of technical equipment and machinery that, admittedly, looks a bit out of place amidst the natural splendor. Surrounding shipping containers boast a large “Charm Industrial” logo, an indication that, yes, the U.S. Forest Service is now working with the well-funded carbon removal startup in a two-for-one endeavor to reduce wildfire risk and permanently remove carbon from the atmosphere.

The federal agency and its official nonprofit partner, the National Forest Foundation, have partnered with San Francisco-based Charm on a pilot program to turn leftover trees and other debris from forest-thinning operations into bio-oil, a liquid made from organic matter, to be injected underground. The project is a part of a larger Cal Fire grant, to implement forest health measures as well as seek out innovative biomass utilization solutions. If the pilot scales up, Charm can generate carbon removal credits by permanently locking away the CO2 from biomass, while the Forest Service will finally find a use for the piles of leftover trees that are too small for the sawmill’s taste.

“It's actually pretty shocking how big the backlog of wildfire fuel reduction projects is in the United States,” Peter Reinhardt, co-founder and CEO at Charm, told me. “The pattern of putting out fires as much as possible, as quickly as possible, has created just an enormous amount of fuel in our forests that has to be treated one way or another.” Controlled burns and forest thinning are the primary ways of dealing with this fuel buildup, but as Reinhardt explained to me, California has few pellet mills, and thus few offtakers for leftover wood. What’s left often ends up being burned in a big pile.

That’s common at Inyo, which is considered a “biomass utilization desert,” according to Katlyn Lonergan, a program coordinator with the National Forest Foundation. NFF is paying Charm a nominal fee to take the waste biomass off their hands, though not nearly enough to constitute a primary source of revenue for the company.

At this point, funding isn’t a problem at Charm. Last year, the company announced a $100 million Series B round and received a $53 million commitment from Frontier, the Big Tech-led carbon removal initiative, to permanently remove 112,000 tons of CO2 between 2024 and 2030, the coalition’s first offtake agreement. At the time, Charm had delivered over 6,000 tons of removal, “more than any other permanent CDR supplier to date,” the group wrote. Since then, the company has received an additional $50,000 from the Department of Energy and is currently in the running for a DOE carbon removal purchase prize of up to $3 million.

Charm’s process begins with woody biomass and an industrial chipper, after which the biomass is screened and dried. The chips are then rapidly heated in a low oxygen environment, a process called fast pyrolysis, which vaporizes the cellulose in the biomass. The remaining plant matter is then condensed into a liquid and injected thousands of feet underground.

Until now, the company has gotten more attention for its efforts to use agricultural biomass like corn stalks. But Reinhardt told me that lately, 100% of the company’s feedstock comes from “fuel load reduction projects,” — unhealthy trees that have been cut down — though in the future, it plans to source from both agricultural and forest waste. The change in feedstock prioritization, Reinhardt said, is due to wildfires becoming “a more and more urgent issue,” plus the advantages that come from working with denser materials. “Almost all the cost of biomass is in the logistics, and the cost of logistics is driven by density,” he said. Transporting puffy bales of corn stalks, leaves, and husks to Charm’s pyrolyzer is just not as energy efficient as trucking a log.

And because there are already plenty of piles of logs and residue sitting around in forests like Inyo, if Charm can bring its pyrolizers directly to the forest, it can increase efficiency still further. Bringing Charm’s operations onsite could eventually help the Forest Service save money, too. “The Eastern Sierra, it's pretty isolated for this industry,” Lonergan told me. “And so we are actually hauling that [biomass] to Carson City, which is three and a half hours away.”

Fixing the agency’s transportation woes is a ways away though — Charm is starting small, processing just 60 tons of biomass over six weeks of operation in Inyo. The pilot is already more than halfway over.

Charm won’t be claiming carbon removal credits for this project, as Reinhardt told me it’s more a “demonstration of the production” to make sure the logistics work out. Scaling up will mean deploying larger pyrolyzers that can process significantly more biomass. “Our next iteration of pyrolyzers will be probably 10x the throughput,” Reinhardt told me. “So instead of 1 or one-and-a-half tons a day, about 10 to 15 tons a day.” Those numbers start to sound pretty darn small, though, when you consider the amount of forestry biomass and agricultural residue generated per year, which Reinhardt said is around 50 million tons and 300 million tons, respectively.

And while this particular project comprises 538 acres of forest, California alone has set a goal of thinning 1 million acres per year to reduce wildfire risk. Basically, Charm’s not going to run out of feedstock anytime soon, and the Forest Service isn’t going to find a quick fix for its piles and piles of unwanted wood. “I don't envision it being the one solution that fits all,” Lonergan said of Charm’s technology. But, she told me, “it can absolutely contribute to these biomass materials that we don't have an answer for yet.”

Blue

You’re out of free articles.

Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
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
Economy

Climate Change Is Already Costing U.S. Households Up to $900 Per Year

A new working paper from a trio of eminent economists tallies the effects of warming — particularly extreme weather — on Americans’ budgets.

Storms and money.
Heatmap Illustration/Getty Images

Attempts to quantify the costs of climate change often end up as philosophical exercises in forecasting and quantifying the future. Such projects involve (at least) two difficult tasks: establishing what is the current climate “pathway” we’re on, which means projecting hard-to-predict phenomena such as future policy actions and potential climate system feedbacks; and then deciding how to value the wellbeing of those people who will be born in the decades — or centuries — to come versus those who are alive today.

But what about the climate impacts we’re paying for right now? That’s the question explored in a working paper by former Treasury Department officials Kimberley Clausing, an economist at the University of California, Los Angeles, and Catherine Wolfram, an economist at the Massachusetts Institute of Technology, along with Wolfram’s MIT colleague Christopher Knittel.

Keep reading...Show less
Blue
AM Briefing

PJM WTF

On NYPA nuclear staffing, Zillow listings, and European wood

A data center.
Heatmap Illustration/Getty Images

Current conditions: A cluster of storms from Sri Lanka to Southeast Asia triggered floods that have killed more than 900 so far • A snowstorm stretching 1,200 miles across the northern United States blanketed parts of Iowa, Illinois, and South Dakota with the white stuff • In China, 31 weather stations broke records for heat on Sunday.


THE TOP FIVE

1. Watchdog warns against new data centers in the nation’s largest grid system

The in-house market monitor at the PJM Interconnection filed a complaint last week to the Federal Energy Regulatory Commission urging the agency to ban the nation’s largest grid operator from connecting any new data centers that the system can’t reliably serve. The warning from the PJM ombudsman comes as the grid operator is considering proposals to require blackouts during periods when there’s not enough electricity to meet data centers’ needs. The grid operator’s membership voted last month on a way forward, but no potential solution garnered enough votes to succeed, Heatmap’s Matthew Zeitlin wrote. “That result is not consistent with the basic responsibility of PJM to maintain a reliable grid and is therefore not just and reasonable,” Monitoring Analytics said, according to Utility Dive.

Keep reading...Show less
Red
Ideas

A Backup Plan for the AI Boom

If it turns out to be a bubble, billions of dollars of energy assets will be on the line.

Popping the AI bubble.
Heatmap Illustration/Getty Images

The data center investment boom has already transformed the American economy. It is now poised to transform the American energy system.

Hyperscalers — including tech giants such as Microsoft and Meta, as well as leaders in artificial intelligence like OpenAI and CoreWeave — are investing eyewatering amounts of capital into developing new energy resources to feed their power-hungry data infrastructure. Those data centers are already straining the existing energy grid, prompting widespread political anxiety over an energy supply crisis and a ratepayer affordability shock. Nothing in recent memory has thrown policymakers’ decades-long underinvestment in the health of our energy grid into such stark relief. The commercial potential of next-generation energy technologies such as advanced nuclear, batteries, and grid-enhancing applications now hinge on the speed and scale of the AI buildout.

Keep reading...Show less
Blue