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Robinson Meyer:
[0:59] Hello, it’s Wednesday, April 15, and there’s big news in the small but extremely important world of carbon removal. Last week, Microsoft informed some partners and suppliers that it’s pausing its carbon removal purchases. I first reported the news here at Heatmap on Friday. Bloomberg and Carbon Herald have confirmed the story as well. And it’s a huge deal for the carbon removal industry. That is, the set of companies trying to develop technologies that can reduce or eliminate heat-trapping carbon dioxide from the atmosphere. Sometimes you’ll hear it get called CDR for carbon dioxide removal. And no matter what you call it, in recent years, Microsoft basically was the industry. Since 2020, it’s bought more than 70 million tons of carbon removal, which is 40 times more than any other organization or coalition has purchased. The CDR scientist Julio Friedmann told me that there are lots of tech companies out there whose whole business model was basically, we’re going to develop a CDR technology, and then we’ll sell to Microsoft. Well, now Microsoft won’t be buying any more, at least for the time being.
Robinson Meyer:
[1:59] I think it’s important to intervene here and say CDR is not a nice-to-have technology. The IPCC says we’ll need carbon removal to meet the Paris Agreement’s goals. And by one estimate, the world will need to be removing 7 billion to 9 billion tons of carbon a year by 2050 in order to maintain its Paris targets. Now, Microsoft, for its part, says its program isn’t totally over. Melanie Nakagawa, their chief sustainability officer, told me in a statement, quote, our carbon removal program has not ended. We continue to both build on and support our existing portfolio of nature-based and technology-based solutions. At times, we may adjust the pace or volume of our carbon removal procurement as we continue to refine our approach towards sustainability goals. Any adjustments we make are part of our disciplined approach and not a change in ambition, unquote. But even if just the pace and volume are changing, it’s still a big deal. We are going to need this technology, and we just lost its biggest buyer. So what comes next? Here to chat about it today is Jack Andreasen Cavanaugh. He’s the director of the Carbon Management Program at the Center on Global Energy Policy at Columbia University, and he’s the president of Carbon Middle Management Incorporated. He was previously policy manager for carbon management at Breakthrough Energy. Jack and I talk about the history of CDR, what Microsoft’s departure might mean, and what’s coming next for the industry. I’m Robinson Meyer, the founding executive editor of Heatap News, and it’s all coming up on Shift Key. Jack Cavanaugh, welcome to Shift Key.
Jack Andreasen Cavanaugh:
[3:26] Thanks for having me on, Rob. Good to see you.
Robinson Meyer:
[3:28] Good to see you. So let’s start here. Why was Microsoft such an important player in the carbon removal system?
Jack Andreasen Cavanaugh:
[3:35] Yeah, well, I think it’s important to do, you know, a little unearthing of the history of carbon removal, how we got to where we’re at today.
Jack Andreasen Cavanaugh:
[3:43] There was, you know, a lot of seminal work done in the 1990s, the early 2000s about this crazy thing called direct air capture, where you could remove CO2 from the ambient air.
Jack Andreasen Cavanaugh:
[3:54] And a lot of that was done by Klaus Lochner and David Keith, who have both founded different director capture companies, David Keith, carbon engineering, which was eventually sold to Occidental Petroleum. And then it was mostly R&D academic research. And then in 2019, Stripe, the payment processing company, announced $1 million for purchasing of carbon dioxide removal. And then in 2020, Microsoft announced their net negative by 2030 sustainability goal. And in 2022, that was followed up by the Frontier Fund, which was Stripe following on with a number of other partners, a $1 billion advanced market commitment. And so up until that point, what we think of today as carbon removal and the carbon removal market really didn’t exist. And so Microsoft was the first to get in and say, we are going to put relatively large capital outlays towards purchasing carbon removal alongside what Frontier did with the advanced market commitment and essentially kicked off a massive hype cycle for CDR that went across some government policy and certainly private investment.
Robinson Meyer:
[5:11] That history is super helpful. And also I feel like it is worth kind of hammering that at least when I started being a climate reporter, which was like 2016, 2017, 2015,
Robinson Meyer:
[5:23] carbon removal was seen as this purely science fictional technology. Like basically something we might need to develop down the line. There had been work on it done. It was a little taboo to talk about it because the sense was that talking about it would discourage the work of emissions reductions. And there was a sense that it would be really hard. And I mean, it is really hard, but there was a sense that it was like something to talk about in decades to come, but not something we were going to be talking about scaling in the next 10 years. And I do feel like the big milestone there, you know this, I’m just injecting it into the history, was the 1.5C report from the Intergovernmental Panel on Climate Change, which kind of said, hey, if the world wants to hit 1.5C or even 2C, first of all, it would be really bad for us to hit 1.5C. There’d be lots of near-term consequences. And of course, it’s pretty clear those are going to happen now. But there was a lot of energy around avoiding that. But also, if we want to not be at 1.5C by the end of the century, then the only way to do that is to know that we’re going to overshoot in the middle of the century and then draw down carbon at the end of the century. And that will require carbon removal. And so therefore, we need to start working on this technology now. And at least for me, that was the point as a reporter where it went from like, is this real? Should I be thinking about this? Like, does this matter? It seems like it would be a useful thing to have, but maybe there’s a reason nobody’s talking about it to like, oh, this is just like a tool that we are going to need to deal with climate change. And we need to start working on the tool now.
Jack Andreasen Cavanaugh:
[6:52] Yeah, absolutely. And, you know, not to, there’s a much longer history than I laid out. I mean, to your point on the IPCC report, my colleague at Columbia, Noah Deich, founded Carbon180 around the time of that report coming out, which is the first CDR-specific NGO. And there were all sorts of folks that were talking about thinking about building a lot of the frameworks in the federal programs that we have today and building the bedrock of scientific understanding and R&D that have become companies today. And so a lot more happened, but you’re totally right that that report really kicked, like brought carbon removal from, you know, the sort of fringes of climate discussions into a more focal point that we are going to need this at a relatively large scale to reach any climate goals, 1.5 or above.
Robinson Meyer:
[7:43] Yeah. So without that context preloaded then, what was the importance of Microsoft to the carbon removal market? Because it seemed to play a pretty essential role.
Jack Andreasen Cavanaugh:
[7:52] Yeah. So as you reported, I laid out in a piece that I published as well, Microsoft was somewhere around 80% of all voluntary carbon removal purchases in the market. And so just to be clear, voluntary means voluntary. This was done not because of any sort of compliance regulatory mechanism or some sort of incentive to be able to purchase. This was part of their sustainability plan. And being 80% of the market is a really interesting position to be in. And Microsoft, not just on the purchases that they made, the billions of dollars they have allocated towards carbon removal, they haven’t just done that, which in and of itself is an incredible thing to be able to get through all the intermachinations of a for-private business to be able to do this with discretionary spending. But they also then had the ability to sort of shape criteria, standardized contracts, all of these sorts of enabling pieces of financial and project infrastructure to be able to work, de-risk some aspects of the carbon removal market the voluntary market and so yeah they were quintessential in being able to buy build and then also bring in other buyers into the market to some extent now they tried very hard i’m sure they wished that more folks would have joined them but yeah if you’re 80% of the market you are the market essentially.
Robinson Meyer:
[9:20] It’s funny, I’ve been reporting out the consequences of this pullback from Microsoft or this pause or whatever we’re going to call it. And I think a number of folks in the industry have said, well, Microsoft did actually was amazing. I mean, they set this ambitious goal and they have met it and they’ve bought, I think, depending on how you count, 20 to 25 times more carbon removal than anyone else. It’s that that hasn’t been followed by other companies. The frontier companies are in second place, right? But it’s after that, no one has shown up to the same extent as Microsoft has. And that’s really significant. So I guess that naturally leads to the next question, which is how bad is it that Microsoft has gone? What does it mean for the carbon removal economy? And let’s bracket that like stuff should happen next. I mean, let’s bracket that, but let’s just kind of track fallout for now. How bad is it that Microsoft is now gone given that they were 80% of the market?
Jack Andreasen Cavanaugh:
[10:11] Yeah. So starting out, it’s obviously not good, right? There’s no way to sugarcoat losing potentially 80% of the market is good for an industry.
Jack Andreasen Cavanaugh:
[10:22] However, you look at broad sweeping trends across the voluntary carbon market across public policy, which I know that we’ll get to. And we were already in the downturn of the large scale venture capital and some project finance level investment that went into CDR. And so what you have is hundreds of companies that are doing some form of carbon dioxide removal. Very few of those have a credible ability to claim that they are going to remove the amount of tons that Microsoft was buying. Microsoft was buying relatively large tonnage amounts, right? The hundreds of thousands, potentially millions of tons per purchase. And so not that many companies had the ability to scale, were at the appropriate time in their technology to scale that big. And so it’s actually, relative to the entire CDR industry, a fairly small subset of companies that could even have considered Microsoft as a potential buyer. Now, that leaves the 20% of the market that tends to buy in slightly smaller amounts. And so you have all of those folks, including the potential large-scale providers, now fighting over 20% of the market. And fundamentally, what it will mean is just an acceleration of something that was going to happen anyway, which is consolidation and bankruptcies or dissolutions. This was always going to happen at this moment because we don’t have supportive policy.
Jack Andreasen Cavanaugh:
[11:49] And everyone in CDR knew it was in every conference, every conversation knew that this moment was going to happen. There was going to be a moment where Microsoft wasn’t going to buy the clip that they are anymore. And so you really could have had this story written for two years. And it was just like hit send when it occurred. And we’re just at that point right now.
Robinson Meyer:
[12:07] Something that’s come up in my reporting that I think is now kind of an interesting facet of the next step here is that because Microsoft was buying so much more than anyone else, there was no one else who was able to set prices with them. They were kind of setting the price and they were doing all the price exploration themselves as one firm, which is obviously suboptimal, let’s put it that way, and very tricky, I think, as a place to be in as a buyer. And I guess now there’ll be a lot more competition for buyers. And so maybe the price of carbon removal will fall. I don’t know. But one of the problems with no other buyer showing up is that Microsoft basically had to do all the price discovery itself. What are the next steps for carbon removal? It sounds like there is going to be a wave of bankruptcies to some degree. Maybe that’s a little inevitable. It’s a growing technology. But on the other hand, we’d like to retain the ability to continue to make advances in carbon removal technology. So like what should happen next across the market?
Jack Andreasen Cavanaugh:
[13:03] You’re absolutely right. There are going to be consolidations. There are going to be bankruptcies. The consolidations are going to increase the runway for the companies that will consolidate to try to hold on as long as they can. There’s an organization called Ctrl-S that Jason Hochman started up that is looking to retain some of the IP for some of these bankruptcies.
Robinson Meyer:
[13:22] My colleague, Emily Pontecorvo, wrote a story about it, which we’ll stick in the show notes.
Jack Andreasen Cavanaugh:
[13:26] Yeah, yeah. Yeah, and I think it’s an interesting model because there is an incredibly diverse set of technologies. Within every CDR pathway, there’s a hundred different DAC companies or something like that, and they all do something slightly different. And you could imagine a world in which there is incentivizing policy for carbon removal. That IP could be valuable to folks to be able to learn faster, to build quicker.
Jack Andreasen Cavanaugh:
[13:50] I also just want to take a brief note, just a moment to say, I’m like, what happens next is it is sort of incredible to me that there was a moment in time that there were folks at Microsoft, that got in with the C-suite, with the people that were allocating capital within the company and were able to carve out this program. That is amazing. This is voluntary discretionary spending at billions of dollars. And although the tech companies have free cash flow to be able to spend on this, having that same conversation today almost feels impossible, like going into, and Microsoft did have these conversations with a lot of other private companies about trying to spur folks into the market. And that’s sort of incredible. And so one pathway forward, I think that it’s been clear that sort of shut off is I don’t have a lot of confidence that there are going to be new private buyers at a meaningful amount. I just don’t think when you look at the broad fiscal reality of the world at the moment, that it just makes sense for any amount of discretionary spending to be spent on carbon removal, let alone many other climate technologies.
Robinson Meyer:
[14:57] And the key kind of elephant in the room here, right, is that a lot of the private spending on climate technologies, be it carbon removal or renewable construction and development or electric vehicle manufacturing, frankly, was coming from
Robinson Meyer:
[15:11] these big tech companies. I mean, Amazon is an investor in Rivian, right? And is it major source of offtake for Rivian to buy a lot of Rivian delivery vans? Apple and Google and Microsoft had these very aggressive renewable acquisition targets. And part of what’s happened over the past three years is that all the companies that were doing, basically directing some amount of free cash flow to climate investment, have become basically cash strapped light industrial companies that have to build as much physical infrastructure as they can and as much power generation infrastructure as they can. And every dollar matters much more than it did, say, two or three years ago. I think the exception would be Apple here. But for a while, we were able to kind of finance a lot of the climate ecosystem off the back of what was basically an employee perk because it was a very aggressive market for tech employees and they liked working at companies that had these big climate programs. And that is like fully over. The bull market for tech labor employment is over. The ability of these companies to finance climate tech is over. The willingness of them to finance climate tech as opposed to to dump another marginal dollar into data center development or AI model development is over. Like it’s all over.
Robinson Meyer:
[16:27] And that’s a major moment, not only for I mean, to some degree, carbon removal is like most illustrative version of it because it was the closest to like the gargoyle on the cathedral for Microsoft. The beautiful thing they could fund as a result of their incredible societal surplus, but like it’s over for a lot of different things.
Jack Andreasen Cavanaugh:
[16:45] Yeah. And, and like you said, this is just one story amongst many other stories
Jack Andreasen Cavanaugh:
[16:50] that could be written in, in a similar vein. And to your original question about where to go forward from now, You could have another surplus of what you just described come up and you, climate commitments could kick back up again. And we would just do this whole thing over again. We would run it back and we would be having this conversation, you know, five years from now or whenever that is. And the way to hedge against that from happening and to some extent stop it from happening is to have federal governments across the globe pass durable policy that either compels the regulation or incentivizes the deployment of carbon dioxide removal and that because carbon dioxide removal outside of the co-benefits of some pathways, which are fantastic, just removing carbon from the atmosphere for pure carbon sake. Is the tragedy of the commons in a single climate technology entity. Like this is something that will need federal support in the long run to some extent in a way that other climate technologies don’t. That’s true of most of the carbon management world, but it is uniquely true of CDR.
Robinson Meyer:
[18:01] But it’s a form of waste management. Trash and recycling also require ongoing government support. Now, at this point, it tends to come from the state and local level. But governments still pay to handle waste. That’s part of what we expect governments to do. It’s just that this waste happens to be in the atmosphere and requires a particularly high form of technology to dispel.
Jack Andreasen Cavanaugh:
[18:23] Yeah, it’s a very costly trash pickup service. And it also is contingent upon people caring about the trash. There is a relatively large constituency around the world that is unconvinced that the trash is an issue. And that is the big challenge.
Robinson Meyer:
[18:40] Yeah, agnostic on the trash. You know, historically, Congress has been quite supportive of carbon removal technology, but the current administration has not been as supportive. What has been funded in terms of federal policy that could potentially begin to pick up the pieces here? And then what should be funded with a more constructive Congress, a more constructive administration? What kind of policy should we eventually hope to see that could fight off some of this carbon removal wave of consolidation and bankruptcies?
Jack Andreasen Cavanaugh:
[19:11] Well, there was some appropriations money that was put into place for carbon removal R&D, and that is valuable and it’s good to be able to work on the research and development to help scale these technologies. But in terms of actual federal funds that have been spent, the DAC hubs program at the end of the Biden administration issued two $50 million grants to the large DAC hubs. That is the full extent to which is the monies that have been spent on the $3.5 billion DAC hubs program. The rest of that money is sitting at DOE, going through some internal review or whatever is happening at the moment with the DAC hubs program.
Robinson Meyer:
[19:53] It’s like the movie Brazil, presumably.
Jack Andreasen Cavanaugh:
[19:55] Yes, exactly. The purchase prize is in a similar position, paused indefinitely, unclear of if or when that money will be spent. And the only existing policy that incentivizes carbon removal to any extent only incentivizes direct air capture and BECCS which is the 45Q tax credit you.
Robinson Meyer:
[20:14] Get 180 dollars a ton if you remove a ton of carbon from the atmosphere
Jack Andreasen Cavanaugh:
[20:17] Yeah with direct air capture one yeah and and with BECCS you would get 85 dollars a ton and that you know to count that as CDR there are some LCAs in terms of what biomass feedstocks you’re using into the process.
Robinson Meyer:
[20:32] But remind listeners what BECCS is.
Jack Andreasen Cavanaugh:
[20:34] Oh, bioenergy with CCS. So you burn some sort of biomass feedstock and capture that CO2 at a point source. So you could imagine heat and power being used to create pulp and paper, and then you capture the CO2. And that receives $85 a ton because it’s point source capture. But even then, $85 a ton is not enough to reach final investment decision on the BEX facility. and $180 a ton isn’t enough to reach profitability for a DAC company. And so you still have to make up the delta to profitability and that is in the voluntary market, which as we discussed, has greatly retracted and the appetite for relatively expensive DAC credits is pretty low right now considering the fiscal situation of it all. And so.
Jack Andreasen Cavanaugh:
[21:18] If I’m looking at it right now from the U.S. federal government, there’s basically very little to no current outlays for carbon removal. Going forward, there was a specific carbon removal tax credit that was introduced that had increased dollar amounts for various forms of CDR, basically functionally all forms of CDR. There has been discussions of in carbon border adjustment mechanism that Europe put in, Senator Cassidy as well as Senator Whitehouse each have a sort of trade policy as a sort of response to the carbon border adjustment mechanism. And that could include compliance pathways for carbon removal. I think it is important that, Because the cost of carbon removal is so high and because the political winds of the United States have been shifting very rapidly back and forth in terms of how political parties view climate and execute on climate policies or not execute on climate policies, that you have as many bites of the apple as you can. And CDR is embedded into as many policies as you can get it into, whether it’s trade policies, whether it’s tax credits, whether it’s direct procurement, or even farming smart programs for soil carbon sequestration. And there’s all sorts of different policy and regulatory opportunities. It’s just a matter of which ones the politics and the finances will allow.
Robinson Meyer:
[22:41] What’s happening around the world? Are other countries beginning to put money toward carbon removal that are not the U.S.?
Jack Andreasen Cavanaugh:
[22:47] Yeah, Canada has a $10 million procurement program, which is the first procurement program of its kind that’s ever been put into place. They’re soliciting proposals for that now. I mean, $10 million admittedly isn’t a lot, but it’s something. And you build on policies like this, and so it’s a good first start.
Robinson Meyer:
[23:04] $10 million Canadian.
Jack Andreasen Cavanaugh:
[23:06] Yeah, that is true. $10 million Canadian. And then in Europe, Europe is integrating carbon removals into their emissions trading system. And that the final rules on that will happen in the next couple of years, which leaves a gap in terms of when that market will be accessible. Japan has compliance pathways in their domestic ETS for carbon removal. But in terms of pure policy market incentives that actually will get carbon dioxide removal projects built in the real world, incredibly limited in the next three to five years or whenever Europe integrates them, if not all else will equal nothing else goes forward, Europe will become the largest carbon removal market in the world. Until that happens, there is nothing in the near term that is moving forward.
Robinson Meyer:
[23:52] Is there anything happening in China? Because often the story of these climate tech investments is that the West starts them up, gets bored, allows all this IP to die on the vine. I think this is part of the idea of Ctrl-S. And then basically all the IP goes to China and China decides this is a frontier technology that it wants to invest in. And lo and behold, five years later is the best at it in the world. Like, is that happening right now with carbon removal, or is this not a field that China has indicated much interest in so far?
Jack Andreasen Cavanaugh:
[24:20] It’s tough to find data or information on carbon removal in China, although Tencent? Yeah. They announced some prizes structurally similar to sort of the Musk XPRIZE that $100 million for carbon removal. And there have been some reports of direct or capture R&D projects that have been built. But in my view, this is structurally different from China than any of the other things that they’ve done relative to the climate technologies that they’ve developed. Because again, you produce an EV, you produce a solar panel, you produce a battery, there’s a consumer that gains something valuable to them, whether it’s power from a solar panel or a battery, right? Power your car to help with the backup power on your house or an EV that is great and has cool features and is a, you know, a computer, but that’s not the same for carbon removal. And so like even totally China or like you look other places like the Gulf that Climeworks partnered with Saudi Arabia and obviously the Gulf countries are highly invested in a number of different technologies and have at least on balance sheet the money to be able to put towards this. But again, what is the value proposition for them to invest heavily in this industry when nowhere else around the world is?
Robinson Meyer:
[25:32] I mean, I think if also if you think about Chinese energy policy flows from a triangle of concern about conventional air pollution, you know, like PM2.5, energy security and wanting to stay at the frontier of technological development is really only that last point that would drive them
Robinson Meyer:
[25:48] to invest in carbon removal. At what point will the Chinese energy policy triangle become a diamond and we’ll see China make concerted investments focused not only on kind of playing up the climate benefits of its existing supply side investments, but affirmatively making supply side investments to advance international climate agenda. At that point, maybe we’ll see it invest in carbon removal. But until then, it doesn’t really fit into the existing Chinese paradigm.
Jack Andreasen Cavanaugh:
[26:13] There are a number of CDR pathways that have really interesting co-benefits associated with them that have a clearer way to scale than something like direct air capture, unless you’re using for enhanced soil recovery, which is possible, even then still expensive. But you look at things like enhanced rock weathering and the potential to increase yields for crops, as well as decrease the need for fertilizer. You can imagine there are ocean health benefits associated with some forms of ocean CDR. And so in that way, I think that there is an opportunity, and you are currently seeing this amongst the CDR pathways, that they are finding ways, like all climate tech is at the moment, to highlight everything but the climate value associated with their technology. And this was a bit of a doomy and gloomy pod, but I think that that is a very near-term pathway that a market has a value associated with these things, and it’s not a voluntary one on carbon.
Robinson Meyer:
[27:14] Well, we’re going to have to leave it there, but you and I know that at some point you’re going to come back on Shift Key to talk about another favorite topic of ours, which is how to dress for 1.5C. And we’ll have to talk about many other developments as well. But Jack Havanaugh, thank you so much for joining us on Shift Key. It was great to have you.
Jack Andreasen Cavanaugh:
[27:32] Thanks for having me on, Rob.
Robinson Meyer:
[27:38] And that will do it for us on Shift Key today. We’ll be back soon with another episode of Shift Key. Until then, if you love this show, if you hated it, if you had lots of thoughts, you can find me on X, Bluesky, or LinkedIn at Robinson Meyer. Stick around after the credits. We have a great message from our sponsor for this week, Lunar Energy, that I’m very excited about. Until then, Shift Key is a production of Heatmap News. Our editors are Jillian Goodman and Nico Lauricella. Multimedia Editing and Audio Engineering is by Jacob Lambert and by Nick Woodbury. Our music is by Adam Kromelow. Thanks so much for listening. We’ll see you real soon.
Mike Munsell:
[28:16] Hi, my name is Mike Munsell, and I’m the Vice President of Partnerships with Heatmap. For the last two episodes, I chatted with Lunar Energy’s Sam Weavers about solar, batteries, and utility rate design. Today, we dive into virtual power plants and international markets.
Sam Wevers:
[28:30] My name is Sam Wevers, and I’m Director of Product at Lunar Energy.
Mike Munsell:
[28:35] I know we’ve been talking a lot about VPPs. It seems like every company or even a research firm has a different definition of a virtual power plant. How does Lunar define a VPP?
Sam Wevers:
[28:47] I’ve certainly come across this myself. You can get right into the weeds of defining what a VPP is. But, I mean, to me, it’s really just connecting distributed assets together with software and controlling them in smart ways so that those assets deliver value to the grid and homes get paid for that sort of service in return. A VPP turns thousands of disparate homes into something that can look like a power plant to the grid, except it’s a power plant that can be segmented and provide very locational and temporal services to the grid, or it can be grouped together at sort of the top level to provide bulk level power when measured at sort of that transmission or sort of ISO level. That’s probably my definition of a VPP.
Mike Munsell:
[29:31] Do other countries, other markets have VPPs or VPP-like structures?
Sam Wevers:
[29:36] Yeah, for sure. I mean, this is something that’s been emerging in Europe and in Australia in particular for a good 10 years or so. It’s also worth flagging that when I talk about VPPs, I’m in the main talking about VPPs for residential assets. VPPs have been providing demand response services with arc furnaces and large industrial loads for some time.
Sam Wevers:
[29:58] And we are now in a world where it’s not just big factories and manufacturing processes that can provide flexible demand to the grid, but also thousands and thousands of homes. Lots of the Nordic countries have residential assets providing grid frequency services. In the U.K., residential assets can be traded by independent aggregators in markets that are used to balance the grid after the wholesale market closes. And Australia has, you know, a really active and competitive market for residential VPP services.
Mike Munsell:
[30:29] And I know most Shift Key listeners are based in the U.S., but what can the U.S. learn from power markets of other countries?
Sam Wevers:
[30:37] One point is the same problem has been addressed in lots of different ways in different markets, whether that’s more on the rate design side or more on the VPP sort of program design side. One common trend that we talked about earlier is certainly this idea that as there is a shift away from feed-in tariffs in other markets for solar, which is akin to net metering, so really generous solar compensation, that ushered in a big deployment of batteries. There are over a million residential batteries installed in Japan, and they were installed to maximize the value of customers’ solar and also to provide outage protection. It’s a big reason why Lunar provides and has provided software services in Japan with our Gridshare platform for many years now, connecting to residential assets to optimize them daily against time of use rates.
Sam Wevers:
[31:28] I think the other key learnings probably go to exposure of price signals to customers like Octopus Agile in the U.K., all those time of use rates in Japan, and the automated load-shaping effects that these sort of rate shapes can have. The other one probably to flag is 10 years ago in the UK, it used to be that you couldn’t really play residential assets in these sort of wholesale level markets. The markets were very much designed around big minimum clip sizes and sort of performance standards that were very tailored to existing gas turbines and the like. But over time, National Grid over there in the UK and others has done a bunch of work to adjust those market rules to allow VPPs of residential assets to start to participate in new services. And they are participating in those services. They’re providing value to the grid and to customers and millions of pounds a year are getting paid out on a purely market basis. It’s not a subsidy-based thing. It’s just markets being designed to allow the value of these assets to be recognized. But I would also say that the scale of VPP programs in the USA is remarkable.
Sam Wevers:
[32:40] Last year in the DSGS program, I think the Brattle Group put out a report. There was over 500 megawatts dispatched in one dispatch last year and you know one needn’t start with the most complex market structure but the core goal should be the same right which is recognize the true sort of physical and economic value of these residential assets and by doing so costs of managing the grid can reduce customers can save money and make money and more renewables can reliably be brought online.
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Plus, Google and Amazon report on what hyperscaling has done to their emissions.
There’s an interesting new report out today from the progressive think tank Groundwork Collaborative that makes a case for how Democrats can harness the artificial intelligence and data center boom to help the power grid — while also cutting costs for electricity customers.
But first, some news. We’ve known for some time now that artificial intelligence is transforming America’s biggest technology companies, turning them into major energy consumers and even quasi-industrial firms. Now we have even more evidence that it’s driving up their carbon emissions, too.
Google and Amazon released their annual sustainability reports yesterday, and both show huge surges in their energy use and climate pollution. Google’s greenhouse gas pollution grew by 18% last year, its largest year-over-year jump on record, and its energy use leapt by 37%. The company’s energy use rose by more than a quarter last year; it now uses roughly 3.5 times as much energy as it did before the pandemic.
Amazon’s climate pollution, meanwhile, increased by more than 16%, surging by the equivalent of more than 10 million metric tons of carbon dioxide. Emissions from its purchased electricity increased 34% since last year. If you feel like you’re seeing more Rivian-made Amazon delivery vans on the road, you’re not wrong: The company claims it deployed an additional 21,000 last year.
What’s driving this surge? The AI boom, of course. “Our AI infrastructure buildout is currently accelerating faster than the grid is decarbonizing,” Kate Brandt, Google’s chief sustainability officer, said in a statement.
What to do about it? That’s what Groundwork’s report is about.
“How do we bring down costs now? How do we bring down costs in the long term? And how can we make those two things mutually reinforcing?” Grayson Flood, the report’s author and a former policy adviser to Representative Alexandria Ocasio-Cortez, told me. “We wanted to be pretty direct about addressing what we see as a broken incentive structure within the system, particularly for interregional transmission.”
The report outlines a few novel ideas about how to lower prices immediately, in part to get through a coming multi-year “crunch,” during which the power grid in some regions will be maximally constrained while utilities work to bring new power plants online:
The report also imagines several policy ideas to help build out the grid. One of them is a Grid Trust Fund, a new federal bank account funded through an excise tax on data centers and other large electricity loads.
The government has often turned to funds like these to support infrastructure that creates a natural monopoly at national scale, Flood said. “The interstate highway is the most notorious example, but you can look at airports, you can look at seaports — they have these types of trust funds. There’s a lot of precedent for this in the tax code, and they tend to be financed with excise taxes on some sort of corresponding usage of the infrastructure.”
Under his scheme, the new excise tax would fall on big power users like data centers or crypto miners that don’t generate many permanent local jobs — in other words, aluminum smelters, steel mills, and semiconductor fabs would be exempt from it. But even just taxing electricity for large loads at 1 or 1.5 cents per kilowatt-hour, he said, could throw off more than $100 billion in a decade. That money could then be used to fund new transmission projects, technical assistance for utilities, ratepayer relief, or economic development.
That trust fund would be partly overseen by a National Power Authority, a new government corporation modeled on the Tennessee Valley Authority or the Energy Department’s existing power marketing administrations. This authority would have limited powers and would be partly inspired by Texas’ successful effort to centrally plan transmission lines in order to expand its electricity market.
The new authority would plan and develop interregional transmission, linking far-flung regions of the country to create new power markets. It would also have the power to build new 24/7 zero-carbon electricity power plants with high up-front capital costs, such as new geothermal projects, offshore wind farms, or nuclear plants.
“People talk about the power grid as a platform,” Flood said. But “right now, the grid is not functioning as a backbone and platform, it’s functioning as a bottleneck.”
The goal of the report, he said, is to ask: “How do we build [the power grid] as a backbone to support the growth of private markets, whether that’s in renewable energy generation, or an AI data center, or a new hospital that’s showing up?”
It’s an interesting document. Many energy wonks have proposed plans to shift some of the costs of expanding the electricity system out of the ratebase — that is, out of customers’ power bills — and onto the tax base, which is funded in a more progressive way. (I recently argued for a national, publicly funded grid buildout in The New York Times.) The new Groundwork report, in essence, tries to reframe those ideas for an era of populist politics — and one in which Americans are suspicious of data centers, as Heatmap’s polling has shown.
In its fusion of populist and pro-growth attitudes, this new set of proposals reminds me of New York City Mayor Zohran Mamdani’s attempt to freeze the rent for some tenants while passing major supply-side reforms allowing new housing construction. That effort has won Mamdani praise from many housing advocates in New York (even as some remain dubious about his de facto rent freeze). Whether that kind of politics works at a national level remains to be seen.
The bill is part of a package now sitting on Governor Mikie Sherrill’s desk.
Data center politics are continuing to evolve rapidly, and almost always in the direction of increasing costs and restrictions for data center development.
In New Jersey, which has become ground zero for the political backlash to high electricity prices, a gaggle of bills relating to data centers and electricity prices just hit the desk of newly elected Governor Mikie Sherrill, including a large load tariff bill, a water and energy reporting bill, and a bill to scale back tax credits available to data center projects.
All of these pieces of legislation are consistent with national and local trends (federal regulators are encouraging regional electricity markets to come up with large load tariffs, for example), with tax credits getting an especially close look in statehouses across the country.
Thirty-eight states have “ dedicated tax incentives for data centers,” according to an April study by the National Conference on State Legislatures. These often include exemptions from sales taxes for data center equipment like servers and routers, or property tax abatements for newly constructed data centers.
In Virginia, which last year elected Sherrill’s former House colleague Abigail Spanberger as governor, the sales tax exemption has become a hot issue of political contestation, as powerful Virginia State Senator Louise Lucas has come out in opposition to it. A budget deal recently reached in the state’s General Assembly included a tax on data center electricity consumption, while the data center tax exemption question will be kicked to a working group for now, according to the Virginia Mercury.
The New Jersey bill currently on the governor’s desk targets a tax credit program called Next New Jersey, which has some $500 million to disburse for tax credits. Half of that has been allocated for a CoreWeave data center project on the site of an existing laboratory, State Senator Joseph Cryan told me. The remaining $250 million would be used to bolster a number of existing state programs.
“The reason for eliminating it was, frankly, because people are outraged over the amount of money CoreWeave got,” Cryan said.
CoreWeave did not respond to a request for comment. A Sherill spokesperson didn’t comment on the record about when or whether the bills would be signed.
New Jersey and Virginia’s examination of tax credits comes after another state with a Democratic governor, Illinois, paused tax incentives for data centers that had been worth almost $1 billion in the first five years of this decade.
The turn against tax incentives for data centers comes as the public is increasingly wary of the latter and their perceived effect on electricity prices. This turn in sentiment has forced governors — like, say, Indiana Governor Mike Braun — to pivot away from their typical cheerleading for new businesses.
“States are very focused on attracting industries of the future, attracting jobs for their residents, attracting business,” Justin Balik, a former economic development official in New Jersey and vice president for states at the climate group Evergreen Action, told me. But, he asked, “Does the economic development strategy for a state reflect its other policy priorities?”
New Jersey itself is an example of how quickly the politics of economic development can turn. When the bill establishing the Next New Jersey program passed in 2024, then-Governor Phil Murphy trumpeted the bill for “capitalizing on this moment to ensure we establish ourselves as a frontrunner in generative AI innovation.”
“AI has already started to revolutionize our everyday lives, and New Jersey is capitalizing on this moment to ensure we establish ourselves as a frontrunner in generative AI innovation,” Murphy said in a statement typical of the more boosterist era of, uhhh, two years ago. “AI will be a transformative industry that will change lives and grow our economy and New Jersey is ready to take the lead.”
That was in July 2024. Now it’s July 2026. Electricity bills in New Jersey have gone up from $108 per month in May 2024 to $140 this past May, according to the Heatmap-MIT Electricity Price Hub, while rates have gone up some 38%. And while it’s often difficult to attribute electricity rate hikes directly to data center development — or even determine whether data centers raise rates at all — New Jersey, which is part of the PJM Interconnection electricity market, is almost certainly seeing hikes due to data center construction. PJM has struggled to bring on new generation or adequate transmission, and its own market monitor said in March that “data center load growth is the primary reason for recent and expected capacity market conditions, including total forecast load growth, the tight supply and demand balance, and high prices.”
The conditions have forced lawmakers to reconsider their typical bias toward economic development, Balik told me. “I think we’re seeing a moment where there’s a reckoning with the energy affordability conversation,” he said, “Where folks are rightly saying, hey, we care about clean energy in some cases, and in a lot of cases we care about energy affordability. Does our economic development strategy match those priorities, or are these two things at odds with each other?”
Cryan, the state senator, put it more bluntly: “The reason for doing it was to show the public that we hear their outrage and can do something about it,” he said. “The governor and the legislature have heard the voices of the people of New Jersey.”
What the heck is “surficial mineralization”?
According to one of the world’s leading carbon removal buyers, the sector’s future lies in piles of industrial waste.
When Frontier, the Stripe-led coalition of carbon removal supporters, announced its latest $915 million funding commitment, it took the opportunity to lay out the five technologies it views as most promising. I was familiar with four of them — ocean alkalinity enhancement, biomass carbon removal and storage, enhanced rock weathering, and direct air capture. Heatmap has covered them all. But the name on the very top of the list stumped me: surficial mineralization.
It sounds technical, and like all methods of carbon removal, it is — sort of. The idea is to take advantage of the tailings ponds and slag heaps left behind by the mining and steelmaking industries. These piles of calcium- or magnesium-rich debris naturally capture and store carbon from the air — not enough to change the trajectory of our warming planet without any human intervention, but managed well, they could one day capture carbon at a significant scale.
How significant, exactly? While there’s been very little action in the space to date, Frontier says surficial mineralization has the potential to remove over 10 gigatons of carbon from the atmosphere per year — as much or more than any other pathway — at an eventual cost of $80 to $120 per ton. That would put it among the cheapest approaches on Frontier’s list, in part because those heaps of industrial waste alone could absorb anywhere from a gigaton to 4 gigatons of carbon before there’s a need to mine rocks solely for carbon removal purposes.
“The beauty of surficial mineralization is twofold,” Hannah Bebbington Valori, who heads the Frontier coalition, told me. “One, we are working with an abundant source of highly reactive rock, and so there is a significant opportunity for carbon dioxide drawdown. And two, it is carbonating in place, and so sufficient mineralization technologies can be considered closed system approaches, and have generally more straightforward measurement reporting and verification infrastructure.”
At a chemical level, the process resembles other carbon removal pathways Frontier champions, such as enhanced rock weathering and ocean alkalinity enhancement. All three rely on alkaline minerals reacting with moisture and ambient carbon dioxide to form stable carbonate compounds that permanently lock away the gas. The difference is exactly where this reaction takes place: While surficial mineralization contains it to waste piles at industrial sites, the other approaches disperse the reaction across open, difficult-to-monitor systems such as farmland soils and the ocean.
That makes measurement, reporting, and verification — known as MRV — far more challenging and expensive for ocean- and soil-based systems, as scientists must track carbon uptake across ecologically complex environments where countless biological and chemical processes are unfolding simultaneously. These intersecting processes makes it difficult to demonstrate that human intervention was responsible for any given ton of carbon removed, as opposed to natural variability. MRV for these pathways thus relies heavily on modeling, which can never provide the same level of certainty as direct measurement.
Surficial mineralization, however, can be measured much more directly. On-site sensors continuously monitor CO2 concentrations above mine tailings or steel slag, providing a real-time signal of how quickly and to what degree the materials are drawing down carbon. Scientists can then validate these measurements in the lab by comparing physical samples of the material taken before and after the reaction, quantifying exactly how much solid carbonate formed as a result of various engineered interventions. The primary tool for this is X-ray diffraction — a well-established geological technique that identifies a sample’s mineral composition like a chemical fingerprint, making it possible to directly measure how much carbon the material locked away.
Don’t mistake the relative simplicity of the MRV framework for evidence that surficial mineralization is a proven carbon removal pathway — the reality is far from it. While mineralization may look simpler than, say, direct air capture, which typically uses giant fans and specialized sorbents to pull CO2 from the air, there are very few companies working in this space today. All are extremely early stage, and the time and capital required to secure feedstock partnerships, gain site access, and acquire necessary industrial equipment remain significant barriers to getting these projects off the ground.
Why is this heavy equipment needed in the first place? Because these waste piles won’t do much carbon capture work if they’re simply left untouched. That’s because the minerals at the pile’s surface will begin to slowly carbonate, eventually becoming fully saturated and acting as a seal that blocks carbon from reaching the reactive minerals below. As yet there’s no consensus on how to most quickly and cost-effectively break through this natural process to maximize carbon uptake — companies are testing a range of approaches, from crushing and spreading material to maximize air exposure (similar to enhanced rock weathering) to actively churning piles of waste to constantly reveal fresh reactive surfaces.
“Understanding exactly what is the best system to use to maximize your carbon removal efficiency and minimize your cost — this is what we need real-world deployment to do, and to understand,” Bebbington Valori told me.
One of the seed-stage startups Frontier has supported with a small pre-purchase agreement, Arca, spun out of the University of British Columbia to commercialize its approach to carbon removal from mine tailings. The company’s focus is ultramafic waste — magnesium- and iron-rich rock that locks away carbon dioxide as stable magnesium carbonate. “My pathway for interest on that was knowing that there was already about 2 billion tons of ultramafic mine waste sitting on the surface of the Earth in Canada alone,” Greg Dipple, Arca’s co-founder and head of science, told me.
Arca proposes to increase the surface area available for carbon capture in two ways. The first is by using customized robots to continuously till and churn tailings piles, constantly exposing fresh feedstock to the air to maximize carbon uptake before the next layer of tailings is deposited on top. That strategy, Dipple told me, “can give us a five- to 10-fold increase in the rate of CO2 capture” at active mine sites.
It successfully demonstrated this approach in an 18-month pilot project with Australian mining giant BHP at an active mine in the country's Northern Goldfields region where Arca says it increased the tailings’ mineralization rate by an order of magnitude. But the startup plans to push the efficacy of its tech further through what it calls “mineral activation.” This technique uses industrial-scale microwaves to heat the minerals rapidly enough to drive off the water that’s chemically bound within their crystal structure. This essentially blows apart the minerals from the inside out, exposing fresh magnesium-rich surfaces primed to react with carbon dioxide. The expected result is faster mineralization and more carbon captured per ton of mine tailings — but the startup has yet to test it in the field.
“Essentially we’re making microwave popcorn out of silicate minerals,” Dipple explained. “The microwaves cause the release of that water in the same way that when you make popcorn, you’re essentially boiling the water out of the center of the kernel, and that’s what blows the kernel up and creates this high surface area.” The idea is to eventually integrate this step into the mine’s tailings processing stream, with minerals moving through the giant microwave before they’re deposited at the storage facility.
Dipple told me that mineral activation will be a core part of Arca’s future projects, including those intended to fulfill the company’s 10-year carbon removal offtake agreement with Microsoft. Signed last October, the deal calls for Arca to deliver nearly 300,000 metric tons of carbon removal to the software giant.
While no other startup in the space has landed an offtake agreement of that scale, several have secured early backing from Frontier through pre-purchase agreements. One of them, Karbonetiq, is working to capture carbon from steel slag, the calcium-rich byproduct of steel production that accumulates in large piles at processing sites. Like the magnesium-rich minerals in mine tailings, calcium compounds in steel slag naturally react with moisture and carbon dioxide to form a stable calcium carbonate — a.k.a. limestone — permanently locking up the CO2.
Unlike mine tailings however, slag doesn’t begin as a fine powder. Instead, the molten byproducts poured off from high-temperature steel furnaces cool into chunks the size of large rocks, leaving only their outer surfaces exposed to the air and able to react with CO2. Karbonetiq’s strategy is essentially to crush and disperse those rocks to increase their reactive surface area. As the company’s commercial vice president, Luke Rondel, explained, “We crush [the slag] down so you get smaller particle sizes. We then spread that out in a field of material, and we till that material with a tractor and plow, which is just turning over new surfaces.”
Each pathway has its advantages — while Arca’s magnesium-rich mine tailings are the most abundant feedstock, Rondel told me that the calcium-based reactions in slag happen significantly faster. For its part, Frontier hopes to test and evaluate a range of approaches at its new Surficial Mineralization Hub in Quebec, which it announced at the end of April. Located at a former asbestos mine, the hub will give participating startups access to “10,000 tons of serpentinite tailings and space for pilot scale testing,” Bebbington Valori told me, as well as local labs with specialized equipment.
This should eliminate some of the hurdles facing the nascent sector, chief among them being access to the right kinds of reactive rocks. Small startups “really need to either partner with large academic labs or with large mining companies to get access to that feedstock,” Bebbington Valori told me — a difficult and expensive proposition for a company that’s just getting off the ground.
While Frontier has yet to announce the cohort of participating startups, both Arca and Karbonetiq told me they hope to test their technology there, with the latter planning what would be one of its first mine tailings pilots through the program. Ultimately the goal is to generate the proof points needed to give both the startups and Frontier a clearer roadmap for which approaches can realistically scale — and what kind of support they’ll need to get there.
It certainly won’t be a straightforward process — bringing new technology into old-school industries never is — and the economics will only start to pencil if their operations reach meaningful scale. In theory, mining companies could benefit from hosting surficial mineralization projects, whether through site access fees, outsourcing elements of waste management, or even critical minerals recovery. Miners could even develop and scale the technology themselves, if they so desire. But the sector has historically been reluctant to adopt new tech. “The classic quote is, in mining you always want to be No. 2, you don’t want to be the first one,” Dipple told me. “You don’t want to put up a $2 billion plant that doesn’t work.”
So like nearly everything in the carbon removal space, early execution is falling to the startups that aren’t afraid of a little risk. “They’re watching for sure,” Dipple said of the mining industry at large. “But they want to be No. 2. We’re going to have to be No. 1.”