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Isometric is trying to become the most trusted name in the scandal-plagued carbon market.

Regulations are probably coming for the scandal-plagued voluntary carbon market. After years of mounting skepticism and reports of greenwashing, governments are now attempting to rein in the historically unchecked web of platforms, registries, protocols, and verification bodies offering ways to offset a company’s emissions that vary tremendously in price and quality. Europe has developed its own rules, the Carbon Removal Certification Framework, while the Biden administration earlier this year announced a less comprehensive set of general principles. Plus, there are already mandatory carbon credit schemes around the world, such as California’s cap-and-trade program and the E.U. Emissions Trading System.
“The idea that a voluntary credit should be a different thing than a compliance credit, obviously doesn’t make sense, right?” Ryan Orbuch, Lowercarbon Capital’s carbon removal lead, told me. “You want it to be as likely as possible that the thing you’re buying today is going to count in a compliance regime.”
That’s where the carbon credit certification platform Isometric comes into play. Founded in 2022, the startup raised $25 million in its seed round last year, co-led by Lowercarbon and Plural, a European venture capital firm. It has created a rigorous, scientifically-driven standard for carbon removal credits, with the intention of becoming the benchmark that buyers, sellers, and other stakeholders can coalesce around. So whenever federal standards or compliance regimes do kick in, there will be no doubt whether Isometric-verified credits are up to snuff.
“Isometric was basically founded to say, look, the long-term solution here is obviously government and regulation, but in the meantime, this is too important to let the market just keep doing it like this,” Lukas May, chief commercial officer at Isometric, told me. He believes that the government’s role in the carbon market should mirror the financial sector, but instead of preventing insider trading or predatory lending, federal regulators would make high-level determinations on things like what types of credits count and how long carbon must be locked away to count as “permanent removal.” Platforms like Isometric (often referred to as registries) could then focus on setting more granular, scientifically specific requirements for particular methods of carbon removal.
The startup aims to separate itself from existing registries, which include Puro.earth, Verra, and the Gold Standard, in two big ways.
First is just a focus on science. May said that 15 of Isometric’s first 25 hires were scientists. Today, the company’s chief scientist is Jennifer Wilcox, who recently left her position on the leadership team at the Office of Fossil Energy and Carbon Management, housed within the U.S. Department of Energy. Other registries, he told me, are “filled with NGO types” and “policy people” who lack the technical background to, say, evaluate what types rock formations are best for the geological sequestration of bio-oil or how CO2 fluxes in the soil impact enhanced rock weathering. These types of in-the-weeds analyses are integral to establishing stringent protocols to validate the amount of carbon that’s actually been removed.
Additionally, May, Orbuch, and Khaled Helioui, a partner at Plural who led the firm’s investment in Isometric, all said the company fixes a key flaw in the voluntary carbon market —- alignment of financial incentives. Traditionally, carbon removal suppliers pay registries to certify their credits, which creates an incentive for registries to overlook lax standards. But Isometric is instead paid a flat fee by the buyers for performing verification work on a per-ton basis.
This year, Isometric verified its first credits ever, from the carbon removal companies Vaulted Deep, which collects sludgy, organic waste and deposits it underground, and Charm Industrial, which injects processed biomass into abandoned oil and gas wells. Credits from these two suppliers were sold to Frontier, the carbon-removal initiative led by the payments firm Stripe. Just last week, Frontier identified Isometric as its first and only leading credit issuer.
“What makes Isometric stand out is they’re explicitly focused on durable CDR [carbon dioxide removal],” Joanna Klitzke, Frontier’s procurement and ecosystem strategy lead, told me. “Durable” refers to the fact that Isometric’s projects must sequester CO2 for 1,000 years or more. “They’re building tech products that make data and reporting particularly easy for suppliers and for credit management,” she added.
Everyone is essentially trying to avoid another scandal like the one that engulfed rainforest carbon offsets, which were found to be largely worthless. The industry has thus been shifting away from more nebulous carbon offsets, which seek to avoid future emissions by preventing deforestation or funding renewables development, and towards more concrete, but often more expensive, forms of carbon removal — think direct air capture, enhanced rock weathering, or biomass carbon removal and storage, all of which have seen a boom in investment.
“As carbon removal was emerging as a new and potentially very exciting way to do this stuff, potentially more measurable and more rigorous, we couldn’t just sit and watch the same registries do the same thing,” May told me, saying doing so would “destroy trust in the carbon removal industry before it’s even off the ground.”
In a past life, Isometric’s founder and CEO, Eamon Jubbawy, founded a digital identity verification company for the financial services industry. This gave investors confidence that he could bring his expertise in trust-building and verification services to the carbon removal space.
“It’s not a like for like, but there’s a lot of overlap in terms of actually introducing efficiency, effectiveness, and having technology really open a market,” Plural’s Helioui told me. “This is not an endeavor or an opportunity where I would have been necessarily that keen to back a first-time founder, just because of the complexity of what you need to manage,” he said. “We’re really talking about market creation.”
But May doesn’t expect Isometric to totally dominate other registries. Just like there are many private banks, May envisions an “ecosystem of high quality registries,” eventually unified around a set of federal guardrails. Until then, he believes Isometric’s role is to “set a bar that is so high that the expectation and norm in the market shifts,” thus avoiding a race to the bottom where companies are able to greenwash their image with cheap, low-quality credits.
Now, not every company can afford the highest quality credits. And because of Isometric’s 1,000-year storage requirement, many cheaper, nature-based projects, such as reforestation, are excluded from its registry, even though there’s still demand for them. Orbuch told me that Isometric will continue adding guidelines for different carbon removal pathways, as it recently did for biochar, a charcoal-like brick that locks up carbon contained within biomass.
It’s still early days, and there’s plenty of room for Isometric to grow alongside the market. After all, it’s only issued 5,350 carbon removal credits to date, while nearly two billion credits have been issued in the voluntary carbon market overall.
“The whole industry needs to be scaling up,” May told me. “So we need to, in 10 years time, be, you know, issuing and verifying hundreds of millions, if not billions, of credits annually.”
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The companies just launched a major VPP play.
For all the hype surrounding virtual power plants, they’re still a niche player on the U.S. electric grid. A new partnership between three of the biggest residential energy companies in the country — Tesla, Sunrun, and Renew Home — aims to recast VPPs into a leading role.
The companies announced on Wednesday that they have more than 16 gigawatts of dispatchable VPP capacity available today to deliver to utilities and data center developers throughout the country. That’s about the same as 16 nuclear reactors, except instead of generating power round the clock from a central plant, the companies aggregate unused electricity capacity from thousands of individual home solar and battery systems and programmable thermostats, and can make it available for several hours at a time.
Today, the companies bid these resources into electricity markets as a sort of bespoke grid service. A few times per year — often in the summer months when demand spikes — the grid operator in California might ask Sunrun to switch on its VPP to prevent a blackout. That means Sunrun’s rooftop solar and battery customers all either begin exporting excess power to the grid or rely more on their energy storage systems for their own power needs, reducing strain on the grid. Tesla operates similar programs, some in partnership with Sunrun. Renew Home, which spun out of Google Nest, does the same thing but with thermostats and water heaters, nudging temperatures on thousands of devices up or down during peak demand hours.
“A lot of our assets are enrolled in a contract where they can be used up to 20 times per year,” Paul Dickson, the president and chief revenue officer of Sunrun, told me. Now the company, along with its partners, are making the pitch to utilities and hyperscalers to view VPPs as 365-day resources, and more fully integrate them into their grid planning.
It’s a “turnkey” solution, the companies wrote in a press release, “deployable in months, not years,” that requires “no additional hardware, software, interconnection, water, or land usage for offtaking parties.”
VPPs also typically kick back some of the proceeds they earn from the electricity market to the residential customers hosting the solar panels, batteries, and programmable thermostats providing the power, meaning they can meet growing energy demand while helping to lower household energy bills. Sunrun and Renew Home paid out a combined $67 million in customer rewards last year.
About 60% of the 16 gigawatts the companies have available are tied to Renew Home’s enrolled devices, with the remaining 40% coming from Sunrun and Tesla’s solar and battery assets, Dickson told me. The capacity is also spread out geographically. There’s about 1.7 gigawatts available in Texas — the second largest data center market in the country, Dickson pointed out. There’s 300 megawatts available in Virginia, which the companies expect to grow to 500 megawatts by 2030.
“Unlike a traditional power plant that's fixed in size, this number grows every single day as the combined three companies continue to add additional capacity,” Dickson said. Sunrun alone plans to more than double its energy storage capacity by the end of 2028.
If utilities and large industrial customers buy the VPP pitch, the companies will be able to expand even more quickly, he added. If regulators or utilities come back and say, we’ll take your existing capacity today, and if you can add another gigawatt in the next year, here’s what we’ll pay, Sunrun could potentially reduce the upfront cost to customers to host the solar and battery installations, driving faster adoption.
The new partnership follows a similar announcement earlier this month from the VPP company Voltus, which signed a three-year agreement with Google. Voltus will provide up to 100 megawatts per year of capacity for Google in PJM, the country’s largest (and most constrained) electricity market covering much of the Midwest and mid-Atlantic. In that case, however, Voltus is using the deal with Google to finance the VPP, with the capacity set to come online by 2027.
The Tesla/Sunrun/Renew Home group is simply announcing they are open for business — they haven’t signed up any offtakers yet. Dickson told me the companies wanted to “make everybody aware that there is this uncontracted capacity, and make sure that it goes to the place that it can be most impactful.” Wednesday’s announcement is accompanied by a live map that shows where the capacity is. The companies did, however, already bid over a gigawatt of capacity into PJM, the larger energy market that Virginia is a part of, as part of its emergency procurement to meet near-term load growth in the region, and are waiting to hear if they were selected.
Last year, the electrification advocacy group Rewiring America published a paper arguing that hyperscalers could free up grid capacity for at least a third of the load growth expected from data centers if they paid for residential households to get heat pumps. All of that capacity would simply be the result of swapping inefficient appliances for more efficient versions, reducing the overall energy use of the homes. If hyperscalers also financed residential solar and storage upgrades, they could more than meet data center demand, the report posited.
That’s not how these VPP proposals are going to work — residential customers will still have to pay something to Sunrun and Tesla for their solar panels and batteries. But Ari Matusiak, the founder and CEO of Rewiring America, told me he viewed these new VPP partnerships as a step in that direction. Today, energy markets are largely bifurcated between residential market activity and large industrial customers. “Where we are going is toward a world where we think about the household as actual energy infrastructure and not simply an end of the line billpayer,” he said. “Once you start doing that, it changes the economics of how those household upgrades are treated and what the opportunities are.”
Current conditions: The warehouse fire in Boyle Heights is raging for a third day, spewing dark smoke over the Downtown Los Angeles skyline • The death toll from Western Europe’s heatwave has reached into the dozens • An 18-wheeler carrying more than 400 beehives overturned in eastern Texas and filled a small neighborhood with more than 2 million honeybees.
Wally World is soon to be powered by the atom. On Tuesday, Walmart announced a 15-year deal with Constellation, the nation’s largest operator of nuclear plants, for a chunk of the electricity coming from the Dresden Clean Energy Center in Illinois. The agreement included about 176 megawatts of wholesale supply from the two-reactor station southwest of Chicago, including 30 megawatts of expanded generating capacity through “uprates” — upgrades that allow operators to get more power out of an existing unit. Over the past two years, tech giants such as Google, Microsoft, and Meta, have bought shares of the power coming from nuclear power stations as the companies sought steady supplies of clean electricity for their burgeoning data centers. But the Walmart deal stands out as one of the first to involve a major brick-and-mortar retailer. “We’re constantly evaluating new capabilities and energy solutions that help ensure the electricity we rely on is dependable, responsibly produced, and built to support long-term growth,” Shayne Wahlmeier, Walmart’s senior vice president of energy, said in a statement.
The Trump administration just unveiled one of its biggest bets on nuclear power yet. The Department of Energy announced $17.5 billion in low-interest loans for utilities to pay for the equipment needed to order new Westinghouse AP1000 reactors. The program marks arguably the most significant effort yet to reclaim U.S. control over its flagship reactor design. While the two 1,100-megawatt units completed at Southern Company’s Alvin W. Vogtle Generating Station in 2023 and 2024 were the first installed in the U.S., China has been building its own version of the reactors at an industrial scale for years. The program will support up to 10 reactors, including two per venture with as many as five utilities. The power companies, currently in talks with the administration, have not yet been named. But Dan Sumner, the chief executive of Westinghouse Electric, told The Wall Street Journal the deal “really kick-starts fleet-scale nuclear development in the United States.” As my colleague Robinson Meyer wrote last night: “I hesitate to praise the project's climate bonafides at the risk of discouraging the Trump administration, but it is worth noting that if this project were to succeed, it would be one of the largest state-assisted build-outs of zero-carbon electricity in recent American history. But it would still take some time to arrive: These reactors aren’t forecast to come online til 2035.”
Yet another behemoth solar farm has come online. On Tuesday, the developer rPlus Energies said its Green River Energy Center had started operations. The facility in central Utah with 400-megawatts of solar panels and 1,600 megawatt-hours of batteries is now the largest solar-and-storage plant within PacifiCorp’s six-state territory out west, including Oregon, Washington, California, Utah, Wyoming, and Idaho. “Operation Gigawatt is about ensuring Utah has the reliable, homegrown energy needed to power opportunity for generations,” Utah Governor Spencer Cox, a Republican, said in a statement. “Green River Energy Center represents the kind of large-scale energy investment we need to deliver reliable energy, support rural Utah, and help power the next generation of prosperity across our state.”
The opening comes as solar is now generating more U.S. power than coal, as I told you recently.
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The Supreme Court ruled Tuesday that Exxon Mobil has the right to sue a Cuban-owned company to recoup more than $70 million in 1960 dollars from an oil complex seized by the Cuban government after Fidel Castro’s revolution. Havana later transferred the ownership of the refinery, terminals, plants, and service stations to Corporación Cimex, the state-owned conglomerate. The lawsuit could now see the oil major try to recover more than $1 billion in losses. “Today’s decision is a critical moment in a 60 year effort to be compensated for what the Cuban government illegally seized,” Exxon spokesperson Todd Spitler told E&E News in an emailed statement. “It reflects two things: the merits of our argument and the fact that our company will fight a good fight for as long as it takes.”
The Trump administration understands the importance of refining cobalt — that’s why, as I reported last year, the Pentagon’s Defense Logistics Agency is pumping money into a startup that promises a new and cheap way to process the mineral. Canada’s Sherritt International started shutting down its Fort Saskatchewan refinery after the U.S. expanded sanctions on Cuba, halting exports of a feedstock supply needed for the plant in Alberta, Canada. The move, in addition to the Supreme Court ruling, come amid intensifying pressure by Washington on the Cuban regime.
California is once again following a New York trend. Just weeks after Albany sued to stop the Trump administration’s bid to pay TotalEnergies to give up its offshore wind projects, Sacramento is joining the litigation. “At a time when the country needs more reliable and sustainable power supply, the Trump Administration is busy using taxpayer money to strike backroom buyouts that make clean-energy projects disappear,” California Attorney General Rob Bonta said in a statement. “California won’t stand idly by as the Trump Administration illegally strikes deals to kill offshore wind projects and replace them with more windfalls for his fossil fuel friends; we’re putting the Administration on notice that we intend to sue.”
Rob checks in with Commodity Context’s Rory Johnston as the Iran War (hopefully) draws to a close.
When Iran closed the Strait of Hormuz earlier this year, experts projected oil prices would go to $200 a barrel. But then… they didn’t. In fact, while gasoline prices rose in the United States, and Europe and Asia suffered higher costs, the resulting energy crisis wasn’t even as bad as what followed Russia’s 2022 invasion of Ukraine.
Why? China. The country seems to have absorbed the costs of Trump’s war of choice by releasing hundreds of millions of barrels from its strategic stockpile. On this episode of Shift Key, Rob is joined by Rory Johnston, an oil markets researcher and the author of the Commodity Context newsletter. They discuss China’s massive (and quiet) intervention, why it’s “the most important thing we learned” from the Iran War, and what it means for the future of energy and geopolitics. Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.
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Mentioned:
China Oil Demand Doubts, Rory’s 2023 article about Chinese strategic stockbuilding
Previously on Shift Key: Why the Iran Ceasefire Hasn’t Ended the Energy Crisis, featuring Rory
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Music for Shift Key is by Adam Kromelow.