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Here are six things to know about it.
If one company has set the pace for direct air capture, it’s Climeworks. The Switzerland-based business opened its — and the world’s — first commercial DAC plant in 2017, capable of capturing “several hundred tons” of carbon dioxide each year. Today, the company unveiled its newest plant, the aptly named Mammoth. Located in Iceland, Mammoth is designed to take advantage of the country’s unique geology to capture and store up to 36,000 metric tons of carbon per year — eventually. Here’s what you need to know about the new project.
Mammoth is not yet operating at full capacity, with only 12 of its planned 72 capturing and filtering units installed. When the plant is fully operational — which Climeworks says should be sometime next year — it will pull up to 36,000 metric tons of CO2 out of the atmosphere annually. For scale, that’s about 1/28,000th of a gigaton. To get to net zero emissions, we’ll have to remove multiple gigatons of carbon from the atmosphere every year.
“The engineered solutions will have to play a major — and I would say even the major part of this task,” said Climeworks CEO Jan Wurzbacher at the virtual press conference for Mammoth’s unveiling. In his opinion, nature-based solutions “will not be able to scale to the level where we need them to be.”
So in the context of where we need to go, Mammoth is almost nothing. But in the context of our current reality, it’s nine times the size of the next largest DAC facility: another Iceland-based Climeworks plant called Orca. And it’s a major stepping stone towards the company’s ultimate goal of capturing a million metric tons of CO2 yearly by 2030 and a billion by 2050.
Climeworks first broke ground on Mammoth in June 2022, and 18 months later the company announced that the “core pieces of the plant are built.” Now that the plant has started capturing CO2, Climeworks says the rest of 2024 will be devoted to installing the remaining CO2capture units and ramping toward full capacity.
Thus far in its history, Climeworks has largely avoided the construction delays that often plague first-of-its-kind projects. “They’re coming out with new projects every three to four years, which is a pretty wild timeline,” said Erin Burns, Executive Director of the nonprofit Carbon180.
Through Climework’s partnership with Icelandic geothermal company ON Power, Mammoth is powered in full by geothermal energy — although the company has long been reticent about how much energy, exactly, it needs.
At any rate, Climeworks has committed to powering the direct air capture process as well as its storage process with 100% renewables in the long run. The company cited Kenya, New Zealand, and Indonesia as other areas that would be geologically advantageous for future Climeworks facilities, as all have substantial geothermal resources.
Climeworks said it would be able to disclose an exact cost per metric ton of carbon removal figure after Mammoth has been operational for a year or two. But in the meantime, Wurzbacher said the company is “closer to the $1,000 per ton mark than we are to the $100 per ton mark.” He expects prices to drop as the company further scales, and is aiming for $300 to $350 per metric ton by 2030, and ultimately $100 per metric ton by 2050. That’s in line with the Department of Energy’s Earthshots initiative, which aims to reduce the cost of a variety of carbon dioxide removal pathways to below $100 per metric ton by 2050.
While Climeworks hasn’t divulged Mammoth’s lifetime carbon removal capacity, it said the plant is designed to operate for 25 years, and that a third of its lifetime capacity has already been sold. The remainder will be sold in the next year or two, representatives told reporters
The company has offtake agreements with more than 160 organizations including some major corporate buyers such as JPMorgan Chase, Boston Consulting Group and Microsoft. Many of these agreements span a decade or more and involve tens of thousands of tons of CO2 removal from current and future Climeworks projects. (The company also recently opened a marketplace, Climeworks Solutions, to package and sell “high quality” carbon credits from other carbon removal companies.)
The Mammoth plant was primarily financed by Climework’s own equity, said Wurzbacher. “But going forward, project financing will be vital to accelerate the scale up. And for that, such long-term offtake agreements are important.”
Now that the plant is operational, it should help drive more investment, Dana Jacobs, chief of staff at the Carbon Removal Alliance, told me. “Having carbon removal projects that you can see and reach out and touch and understand is so critical,” she said.
Climeworks said the lessons from Mammoth will help the company scale further as it enters the U.S. market through its participation in the Department of Energy-funded direct air capture hub, Project Cypress in Louisiana.
Climeworks is working on Project Cypress alongside developer Battelle and another direct air capture company, Heirloom. The project is designed to capture a million metric tons of CO2annually by 2030, and recently received an initial $50 million grant from the DOE to kickstart the project’s planning, design and community engagement processes.
Editor’s note: This story has been updated with quotes and additional information from Climeworks’ team.
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Three companies are joining forces to add at least a gigawatt of new generation by 2029. The question is whether they can actually do it.
Two of the biggest electricity markets in the country — the 13-state PJM Interconnection, which spans the Mid-Atlantic and the Midwest, and ERCOT, which covers nearly all of Texas — want more natural gas. Both are projecting immense increases in electricity demand thanks to data centers and electrification. And both have had bouts of market weirdness and dysfunction, with ERCOT experiencing spiky prices and even blackouts during extreme weather and PJM making enormous payouts largely to gas and coal operators to lock in their “capacity,” i.e. their ability to provide power when most needed.
Now a trio of companies, including the independent power producer NRG, the turbine manufacturer GE Vernova, and a subsidiary of the construction firm Kiewit Corporation, are teaming up with a plan to bring gas-powered plants to PJM and ERCOT, the companies announced today.
The three companies said that the new joint venture “will work to advance four projects totaling over 5 gigawatts” of natural gas combined cycle plants to the two power markets, with over a gigawatt coming by 2029. The companies said that they could eventually build 10 to 15 gigawatts “and expand to other areas across the U.S.”
So far, PJM and Texas’ call for new gas has been more widely heard than answered. The power producer Calpine said last year that it would look into developing more gas in PJM, but actual investment announcements have been scarce, although at least one gas plant scheduled to close has said it would stay open.
So far, across the country, planned new additions to the grid are still overwhelmingly solar and battery storage, according to the Energy Information Administration, whose data shows some 63 gigawatts of planned capacity scheduled to be added this year, with more than half being solar and over 80% being storage.
Texas established a fund in 2023 to provide low-cost loans to new gas plants, but has had trouble finding viable projects. Engie pulled an 885 megawatt project from the program earlier this week, citing “equipment procurement constraints” and delays.
But PJM is working actively with a friendly administration in Washington to bring more natural gas to its grid. The Federal Energy Regulatory Commission recently blessed a PJM plan to accelerate interconnection approvals for large generators — largely natural gas — so that it can bring them online more quickly.
But many developers and large power consumers are less than optimistic about the ability to bring new natural gas onto the grid at a pace that will keep up with demand growth, and are instead looking at “behind-the-meter” approaches to meet rising energy needs, especially from data centers. The asset manager Fortress said earlier this year that it had acquired 850 megawatts of generation capacity from APR Energy and formed a new company, fittingly named New APR Energy, which said this week that it was “deploying four mobile gas turbines providing 100MW+ of dedicated behind-the-meter power to a major U.S.-based AI hyperscaler.”
And all gas developers, whether they’re building on the grid or behind-the-meter, have to get their hands on turbines, which are in short supply. The NRG consortium called this out specifically, noting that it had secured the rights to two 7HA gas turbines by 2029. These kinds of announcements of agreements for specific turbines have become standard for companies showing their seriousness about gas development. When Chevron announced a joint venture with GE Vernova for co-located gas plants for data centers, it also noted that it had a reservation agreement for seven 7HA turbines. But until these turbines are made and installed, these announcements may all just be spin.
Featuring China, fossil fuels, and data centers.
As Republicans in Congress go hunting for ways to slash spending to carry out President Trump’s agenda, more than 100 energy businesses, trade groups, and advocacy organizations sent a letter to key House and Senate leaders on Tuesday requesting that one particular line item be spared: the hydrogen tax credit.
The tax credit “will serve as a catalyst to propel the United States to global energy dominance,” the letter argues, “while advancing American competitiveness in energy technologies that our adversaries are actively pursuing.” The Fuel Cell and Hydrogen Energy Association organized the letter, which features signatures from the American Petroleum Institute, the U.S. Chamber of Commerce, the Clean Energy Buyers Association, and numerous hydrogen, industrial gas, and chemical companies, among many others. Three out of the seven regional clean hydrogen hubs — the Mid-Atlantic, Heartland, and Pacific Northwest hubs — are also listed.
Out of all of the tax credits for low-carbon energy, the hydrogen subsidy, which was created by the 2022 Inflation Reduction Act, is among the most generous. It pays up to $3 per kilogram of hydrogen produced, depending on how emissions-intensive the process is. For context, a 15 ton-per-day plant in Georgia owned by hydrogen producer Plug Power has the potential to earn up to $45,000 per day in tax credits.
But the total price of the tax credit depends on how much clean hydrogen production takes off, and the industry is still in its infancy. When the Penn Wharton Budget Model, a research group at the University of Pennsylvania, estimated the fiscal impact of the Inflation Reduction Act, it placed the total cost for the hydrogen credit at $49 billion over 10 years, compared to more than $260 billion for renewable energy and nearly $400 billion for electric vehicles.
Tactically, Tuesday’s letter draws on all of the Trump administration’s favorite talking points. It warns that nixing the tax credit will mean ceding the hydrogen technology war to China, noting that the country now produces more than 60% of the global supply of electrolyzers — equipment that splits water into hydrogen and oxygen using electricity. It also says that hydrogen fuel cells are already being used by tech companies to power data centers.
And even though the tax credit was designed specifically to subsidize “clean” hydrogen, the letter mostly ignores this distinction, painting hydrogen production as an extension of the U.S. fossil fuel industry. Oil and gas companies have the infrastructure, workforce, and supply chains to lead the global hydrogen economy, it says. It points out that hydrogen can be produced from “natural gas, biogas, biomethane, as well as any electricity source (i.e. nuclear energy),” but does not mention wind, solar, or geothermal.
Investment in the nascent hydrogen industry was essentially on hold for more than two years while companies eager to take advantage of the tax credit waited for the Biden administration to finalize eligibility rules. But even after Biden’s Treasury Department published those rules in early January, how the Trump administration will view the program remained uncertain. “Our industry is now poised to invest billions of dollars in deployments and manufacturing facilities across the country,” the letter says. “However, that private sector investment is at risk due to the uncertainty around this crucial incentive … We need to ensure that we do not miss this hydrogen moment and respectfully request that you maintain the Section 45V tax credit.”
Intense debate and controversy surrounded the development of the rules for claiming the tax credit, and while the Biden administration tried to strike a compromise, some in the industry still found the rules too strict. I asked the Fuel Cell and Hydrogen Energy Association whether it wanted Congress to make any changes to the tax credit or to simply preserve it but hadn’t heard back as of publication time.
But some of the signatories have already expressed their intent to request changes. In December, the American Petroleum Institute sent a memo to the incoming Treasury Department outlining its key priorities and “asks.” It says the Biden administration’s hydrogen tax credit rules were “overly restrictive and raised concerns about qualifying pathways for natural gas.”
Core inflation is up, meaning that interest rates are unlikely to go down anytime soon.
The Fed on Wednesday issued a report showing substantial increases in the price of eggs, used cars, and auto insurance — data that could spell bad news for the renewables economy.
Though some of those factors had already been widely reported on, the overall rise in prices exceeded analysts’ expectations. With overall inflation still elevated — reaching an annual rate of 3%, while “core” inflation, stripping out food and energy, rose to 3.3%, after an unexpectedly sharp 0.4% jump in January alone — any prospect of substantial interest rate cuts from the Federal Reserve has dwindled even further.
Renewable energy development is especially sensitive to higher interest rates. That’s because renewables projects, like wind turbines and solar panels, have to incur the overwhelming majority of their lifetime costs before they start operating and generating revenue. Developers then often fund much of the project through borrowed money that’s secured against an agreement to buy the resulting power. When the cost of borrowing money goes up, projects become less viable, with lower prospective returns sometimes causing investors not to go forward .
High interest rates have plagued the renewables economy for years. “As interest rates rise, all of a sudden, solar assets that are effectively bonds become less valuable,” Quinn Pasloske, a managing director at Greenbacker, a renewable investor and operating company, told me on Tuesday, describing how the stream of payments from a solar project becomes less valuable as rates rise because investors can get more from risk-free government bonds.
The new inflation data is “consistent with our call of an extended Fed pause, with only one rate cut in 2025, happening in June,” Morgan Stanley economists wrote in a note to clients. Bond traders are also projecting just a single cut for the rest of the year — but not until December.
Federal Reserve Chair Jerome Powell told the Senate Banking committee Tuesday, “We think our policy rate is in a good place, and we don’t see any reason to be in a hurry to reduce it further.”
The yield for the 10-year Treasury bond, often used as a benchmark for the cost of credit, is up 0.09% today, to 4.63%. While this is below where yields peaked in mid-January, it’s a level still well above where yields have been for almost all of the last year. When Treasury yields rise, the cost of credit throughout the economy goes up.
Clean energy stocks were down this morning — but so is the overall market. Because while high interest rates are especially bad for renewables, they’re not exactly great for anyone else.