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Carbon Mapper’s ultra-precise Tanager-1 is headed to space.
Yet another methane satellite is launching into orbit Friday, as early as 11:19 a.m. Pacific time, on a SpaceX rocket. Developed by a coalition of public and private partners and led by the nonprofit Carbon Mapper, its precision imaging helps fill a gap in the methane detection universe and complements the abilities of MethaneSAT, the Environmental Defense Fund-developed, Google-backed satellite launched back in March.
Riley Duren, CEO of Carbon Mapper, likens his company’s satellite to a telephoto lens, saying it “has a resolution that's about 10 times higher than the MethaneSAT instrument” — although the tradeoff is that the field of view is about 10 times smaller. The ultimate goal is to identify “super-emitters” of methane and carbon dioxide at the facility level. So while MethaneSAT can detect the total emissions emanating from a particular basin, state, or country, Carbon Mapper can zoom in to figure out what’s going on within 50 meters of accuracy so that operators and regulators can be notified.
Both companies use an imaging technology known as spectroscopy, which involves splitting the light reflected by Earth’s surface into its constituent wavelengths. Methane and carbon dioxide each have their own spectroscopic signature. “It's not unlike being able to perceive the distinction in human fingerprints,” Duren told me.
The Carbon Mapper Coalition satellite, called Tanager-1, came from a partnership between Planet Labs, which developed the satellite, and NASA’s Jet Propulsion Laboratory, which developed the particular spectrometer used onboard. Duren helped create the tech during his nearly 28-year career at JPL, where his research revealed the outsized importance of super-emitters. That helped inspire Duren to found Carbon Mapper in 2020, though until now the organization has mostly done suborbital aerial surveys to track methane and carbon dioxide emissions.
Promisingly, he’s found that distributing his team’s findings often leads to a rapid response. “When we've shared our data with oil and gas companies, landfill operators, and regulators, what they tell us is nearly half of the emissions that we're reporting were previously unknown,” Duren told me. “And in many cases, they can quickly repair them.”
The data from these surveys is publicly accessible on the Carbon Mapper data portal, and the data from Tanager-1 will be published there as well. In addition to Planet Labs and JPL, other coalition partners include the California Air Resources Board, University of Arizona, Arizona State University, and RMI. To date, Carbon Mapper has raised over $130 million in philanthropic funding, from donors including the High Tide Foundation, Bloomberg Philanthropies, and the Grantham Foundation for the Protection of the Environment.
Ultimately, Carbon Mapper aims to launch a constellation of more than 10 satellites, which together will detect and track up to 90% of high-emitting methane sources with near-daily frequency. But this will require funding beyond what the philanthropic sector is likely to pony up.
“Scaling up this to the full constellation and sustaining it will hinge on the ability of governments and the private sector to pay for data,” Duren told me. (MethaneSAT is also philanthropically supported.) “We're hopeful that as these programs scale up and we demonstrate their utility and the regulators depend on them, that we'll see governments begin to match what philanthropy has started,” Durian said.
If you want to watch the launch live, you can do so here.
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The $7 billion program had been the only part of the Greenhouse Gas Reduction Fund not targeted for elimination by the Trump administration.
The Environmental Protection Agency plans to cancel grants awarded from the $7 billion Solar for All program, the final surviving grants from the Greenhouse Gas Reduction Fund, by the end of this week, The New York Times is reporting. Two sources also told the same to Heatmap.
Solar for All awarded funds to 60 nonprofits, tribes, state energy offices, and municipalities to deliver the benefits of solar energy — namely, utility bill savings — to low-income communities. Some of the programs are focused on rooftop solar, while others are building community solar, which enable residents that don’t own their homes to access cheaper power.
The EPA is drafting termination letters to all 60 grantees, the Times reported. An EPA spokesperson equivocated in response to emailed questions from Heatmap about the fate of the program. “With the passage of the One Big Beautiful Bill, EPA is working to ensure Congressional intent is fully implemented in accordance with the law,” the person said.
Although Solar for All was one of the programs affected by the Trump administration’s initial freeze on Inflation Reduction Act funding, EPA had resumed processing payments for recipients after a federal judge placed an injunction on the pause. But in mid-March, the EPA Office of the Inspector General announced its intent to audit Solar for All. The results of that audit have not yet been published.
The Solar for All grants are a subset of the $27 billion Greenhouse Gas Reduction Fund, most of which had been designated to set up a series of green lending programs. In March, Administrator Lee Zeldin accused the program of fraud, waste, and abuse — the so-called “gold bar” scandal — and attempted to claw back all $20 billion. Recipients of that funding are fighting the termination in an ongoing court case.
State attorneys generals are likely to challenge the Solar for All terminations in court, should they go through, a source familiar with the state programs told me.
All $7 billion under the program has been obligated to grantees, but the money is not yet fully out the door, as recipients must request reimbursements from the EPA as they spend down their grants. Very little has been spent so far, as many grantees opted to use the first year of the five-year program as a planning period.
Along with Senator John Curtis of Utah, the Iowa senator is aiming to preserve the definition of “begin construction” as it applies to tax credits.
Iowa Senator Chuck Grassley wants “begin construction” to mean what it means.
To that end, Grassley has placed a “hold” on three nominees to the Treasury Department, the agency tasked with writing the rules and guidance for implementing the tax provisions of the One Big Beautiful Bill Act, many of which depend on that all-important definition.
Grassley and other Republican senators had negotiated a “glidepath for the orderly phaseout” of tax credits for renewables, the senator in a statement announcing the hold, giving developers until July 2026 to start construction on projects (or complete the projects and have them operating by the end of 2027) to qualify for tax credits.
Days after signing the law, however, President Trump signed an executive order calling for new guidance on what exactly starting construction means. The title of that order, “Ending Market Distorting Subsidies for Unreliable, Foreign Controlled Energy Sources,” has generated understandable concern within the renewables industry that, as part of a deal to get conservative House members to support the bill, the Treasury Department will write new guidance making it much more difficult for wind and solar projects to qualify for tax credits.
“What it means for a project to ‘begin construction'’ has been well established by Treasury guidance for more than a decade,” Grassley said. Under these longstanding definitions, “beginning construction” can mean undertaking “physical work of a significant nature,” which can include or buying certain long-lead equipment or components like transformers. Another way to qualify for the credits is to spend 5% of the total cost of the project.
A more restrictive interpretation of “begin construction,” however, could turn the tax credit language into a dead letter, especially when combined with the rest of the administration’s full-spectrum legal assault on renewable energy.
Grassley said that new guidance is expected within two weeks, and that “until I can be certain that such rules and regulations adhere to the law and congressional intent, I intend to continue to object to the consideration of these Treasury nominees.”Grassley has a long history with production tax credits for wind energy, playing a pivotal role in their extension in 2015. “As the father of the first wind energy tax credit in 1992, I can say that the tax credit was never meant to be permanent,” Grassley said at the time. “The five-year extension for wind energy brings about the best possible long-term outcome that provides certainty, predictability and a responsible phase-down of a tax incentive for a renewable energy source.”
Almost 60% of Iowa’s electricity is generated by wind turbines, the highest proportion of any state, according to Energy Information Administration data.
Utah Senator John Curtis has joined Grassley in placing a hold on nominees, delaying their vote before the whole Senate, according to Politico’s Joshua Siegel. Grassley and Curtis, alongside Lisa Murkowski of Alaska and Thom Tillis of North Carolina, were unable to get a meeting with the Treasury Department to discuss the guidance, Siegel reported.
The department creates a seemingly impossible new permitting criteria for renewable energy.
The Interior Department released a new secretarial order Friday saying it may no longer issue any permits to a solar or wind project on federal lands unless the agency believes it will generate as much energy per acre as a coal, gas, or nuclear power plant.
Hypothetically, this could kill off any solar or wind project going through permitting that is sited on federal lands, because these facilities would technically be less energy dense than coal, gas, and nuclear plants. This is irrespective of the potential benefits solar and wind may have for the environment or reducing carbon emissions – none of which are mentioned in the order.
“Gargantuan, unreliable, intermittent energy projects hold America back from achieving U.S. Energy Dominance while weighing heavily on the American taxpayer and environment,” Interior Secretary Doug Burgum said in a statement included in a press release announcing the move. “By considering energy generation optimization, the Department will be able to better manage our federal lands, minimize environmental impact, and maximize energy development to further President Donald Trump’s energy goals.”
Here’s how this new regime, which I and many in the energy sector are now suddenly trying to wrap their heads around, is apparently going to work: solar and wind facilities will now be evaluated based on their “capacity density,” which is calculated based on the ratio of acres used for a project compared to its power generation capacity. If a project has a lower “capacity density” than what the department considers to be a “reasonable alternative,” then it may no longer be able to get a permit.
“On a technology-neutral basis,” the order states, “wind and solar projects use disproportionate Federal lands relative to their energy generation when compared to other energy sources, like nuclear, gas, and coal.” The document going on to give an example, claiming that data from the U.S. Energy Information Administration shows an advanced nuclear plant uses less federal acreage than an offshore wind farm and “thus, when there are reasonable alternatives that can generate the same amount of or more energy on far less Federal land, wind and solar projects may unnecessarily and unduly degrade Federal lands.” The order also includes a chart comparing the capacity density of wind and solar facilities to conventional nuclear, gas, and coal, as well as geothermal, and claims that these sources are superior as well. The document does not reference hydropower.
There’s also a whole host of other implications in this order. Crucially, does the Interior expect that by choking off the flow of permits, cities and companies will just pony up to build what the Trump administration considers “reasonable alternatives” instead? Is the federal government going to tell communities in Nevada, for example, that they must suddenly build gas plants in the desert instead of solar farms to meet their increasing energy needs?
In any case, much more is coming, as this order simply built off of a separate secretarial order earlier this week commanding staff to prepare a litany of recommendations on ending alleged “preferential treatment” for solar and wind facilities. In other words hold my beer – and hold onto yours, too.