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A year and a half ago, President Biden signed the Inflation Reduction Act, the biggest climate law in American history — and arguably in world history. The law will spend an estimated $500 billion in grants and tax credits to incentivize people and businesses to switch from burning fossil fuels to using cleaner, zero-carbon technologies.
That’s the goal, at least. But is the IRA actually working? Now, 18 months after its passage, we’re starting to be able to answer that question. A new report from a coalition of major energy analysts — including MIT, the Rhodium Group, and our cohost Jesse Jenkins’ lab at Princeton — looks at data from the power and transportation sectors and concludes that yes, the law is starting to decarbonize the American economy.
But it isn’t working in the way many people might expect, because while electric vehicles are on track to meet the IRA’s climate goals, the power sector is not.
That’s the opposite of what you might think from reading the popular press, which has bemoaned an alleged slowdown in new EV sales. But the new report finds that the transportation sector actually came in at the upper end of what modelers expected to see this year. About 9.2% of new cars sold last year in the United States were zero-emissions vehicles; after the IRA passed, modelers had expected EVs to come in anywhere from 8.1 to 9.4% of sales.
But the power sector is lagging behind what modelers had expected to see. While the three groups had projected that 46 to 79 gigawatts of new zero-carbon power would come online last year, only 32.3 gigawatts of new capacity actually did. That is primarily due to a drop in new onshore wind projects, which fell below the installation levels achieved in 2020 and 2021. While solar and batteries continued to go gangbusters, exceeding previous records, they could not make up for the drop in wind. That means that the power sector is not on track to cut emissions 40% by 2030, as compared to 2005 levels, as the bill’s supporters have hoped.
Jesse Jenkins, an energy systems expert and professor at Princeton University, and I dive into the details on the latest episode of Shift Key.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, or wherever you get your podcasts.
You can also add the show’s RSS feed to your podcast app to follow us directly.
Here is an excerpt from our conversation:
Robinson Meyer: First, let's do the moment of truth. Let’s just first get into the data. So in the power sector, what do we see?
Jesse Jenkins: What we see in the electricity sector is a new record set for zero carbon electricity generation and storage capacity additions. So that's new power plant and battery storage construction.
In aggregate, we saw over 32,000 megawatts or 32 gigawatts of new zero carbon generation and storage added to the U.S. grid in 2023. That's about a 32% increase from the rate in 2022. And it edges out a previous record that we saw in 2021 of about 31.6 gigawatts. So good news is we're setting new record growth rates in total in terms of wind and solar and battery additions.
Unfortunately, that does fall on the lower end of what we were projecting in most of the modeling results. We were looking for, on average, about 46 to 79 gigawatts, so call it 40 to 80 gigawatts on average of additions in 2023 and 2024. We fell short of the low end of that range at 32.3 gigawatts. So unless the pace accelerates substantially in 2024, we're probably going to fall a bit behind schedule in terms of capacity additions.
Meyer: And do we have a sense of what's driving that? Because I think that's a very surprising finding, that we're behind schedule in the power sector, where I think people feel pretty good generally about the pace of decarbonization. Or I think where the common wisdom, at least, is that the pace of decarbonization is like proceeding apace. What's driving this underperformance of the model?
Jenkins: So it's really the difference between solar and wind additions.
The solar sector added about 18.4 gigawatts of capacity in 2023. That's up massively from just about 11 gigawatts in 2022. It's about double what we had seen in 2020, which was kind of our reference when we were doing our modeling as we started the REPEAT project in 2021. And so that's looking encouraging and in fact is running ahead of schedule with the average pace of additions that we saw in REPEAT project results.
Batteries are growing way faster than we expected.
And that helps really make the most of those solar capacity additions because solar and batteries are kind of like peanut butter and jelly, they go together quite well. And that's because solar has this nice, regular daily fluctuation, right? From the sun rising and setting. And that pairs really well with batteries, which today in a way lithium ion batteries are best suited for, you know, only a few hours of storage. So they'll charge for three or four hours in the middle of the day when we've got an abundance of sun. And then they'll discharge in the evening to help meet the evening peak of demand when everybody's coming home from work.
The batteries basically helped shift the solar output from the middle of the day to hit that evening peak. And that's, that's really helpful. Where things are running behind schedule is really in the wind sector, where we only built about half of the peak rate, actually less than half that we've seen historically in 2023. Additions of wind power in 2023 were only about 6.3 gigawatts, and that's down from nearly 15 gigawatts in each of 2020 and 2021.
So that's a step backwards at a time when we should be smashing new record growth rates across all of these sectors. And that's giving me the biggest concern as we look at in the next couple of years.
Meyer: And that's, I mean, last show we talked about offshore wind and the troubles in offshore wind and how it seems like some big offshore wind projects that we thought might be coming online in the middle of this decade might not be coming online till the end of the decade. But when we talk about wind underperforming in terms of the whole country over the past year, we're really still talking about onshore wind. This is like big turbines in the middle of the Great Plains, not big turbines off the coast of New York, New Jersey, right?
Jenkins: That's right. Yeah, I think I don't think we had any significant offshore wind capacity additions coming in 2024. You know, most of that we were expecting would come in between 2026 and 2030 or 2035. So this is really a story about onshore wind, where if we look at the economics of onshore wind across the country, there's a tremendous number of sites that look very economic given the incentives provided by the Inflation Reduction Act.
And unfortunately, we're just not building out at the pace that would be economically justified. And that is really an indicator that there are a substantial number of other non-economic frictions or barriers to deployment of wind in particular at the pace that we want to see.
The full transcript is here.
This episode of Shift Key is sponsored by Advanced Energy United, KORE Power, and Yale …
Advanced Energy United educates, engages, and advocates for policies that allow our member companies to compete to power our economy with 100% clean energy, working with decision makers and energy market regulators to achieve this goal. Together, we are united in our mission to accelerate the transition to 100% clean energy in America. Learn more at advancedenergyunited.org/heatmap
KORE Power provides the commercial, industrial, and utility markets with functional solutions that advance the clean energy transition worldwide. KORE Power's technology and manufacturing capabilities provide direct access to next generation battery cells, energy storage systems that scale to grid+, EV power & infrastructure, and intuitive asset management to unlock energy strategies across a myriad of applications. Explore more at korepower.com — the future of clean energy is here.
Build your skills in policy, finance, and clean technology at Yale. Yale’s Financing and Deploying Clean Energy certificate program is a 10-month online certificate program that trains and connects clean energy professionals to catalyze an equitable transition to a clean economy. Connect with Yale’s expertise, grow your professional network, and deepen your impact. Learn more at cbey.yale.edu/certificate.
Music for Shift Key is by Adam Kromelow.
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It would have delivered a gargantuan 6.2 gigawatts of power.
The Bureau of Land Management says the largest solar project in Nevada has been canceled amidst the Trump administration’s federal permitting freeze.
Esmeralda 7 was supposed to produce a gargantuan 6.2 gigawatts of power – equal to nearly all the power supplied to southern Nevada by the state’s primary public utility. It would do so with a sprawling web of solar panels and batteries across the western Nevada desert. Backed by NextEra Energy, Invenergy, ConnectGen and other renewables developers, the project was moving forward at a relatively smooth pace under the Biden administration, albeit with significant concerns raised by environmentalists about its impacts on wildlife and fauna. And Esmeralda 7 even received a rare procedural win in the early days of the Trump administration when the Bureau of Land Management released the draft environmental impact statement for the project.
When Esmeralda 7’s environmental review was released, BLM said the record of decision would arrive in July. But that never happened. Instead, Donald Trump issued an executive order as part of a deal with conservative hardliners in Congress to pass his tax megabill, which also effectively repealed the Inflation Reduction Act’s renewable electricity tax credits. This led to subsequent actions by Interior Secretary Doug Burgum to freeze all federal permitting decisions for solar energy.
Flash forward to today, when BLM quietly updated its website for Esmeralda 7 permitting to explicitly say the project’s status is “cancelled.” Normally when the agency says this, it means developers pulled the plug.
I’ve reached out to some of the companies behind Esmeralda 7 but was unable to reach them in time for publication. If I hear from them confirming the project is canceled – or that BLM is wrong in some way – I will let you know.
It’s not perfect, but pretty soon, it’ll be available for under $30,000.
Here’s what you need to know about the rejuvenated Chevrolet Bolt: It’s back, it’s better, and it starts at under $30,000.
Although the revived 2027 Bolt doesn’t officially hit the market until January 2026, GM revealed the new version of the iconic affordable EV at a Wednesday evening event at the Universal Studios backlot in Los Angeles. The assembled Bolt owners and media members drove the new cars past Amity Island from Jaws and around the Old West and New York sets that have served as the backdrops of so many television shows and movies. It was star treatment for a car that, like its predecessor, isn’t the fanciest EV around. But given the giveaway patches that read “Chevy Bolt: Back by popular demand,” it’s clear that GM heard the cries of people who missed having the plucky electric hatchback on the market.
The Bolt died at the height of its powers. The original Bolt EV and Bolt EUV sold in big numbers in the late 2010s and early 2020s, powered by a surprisingly affordable price compared to competitor EVs and an interior that didn’t feel cramped despite its size as a smallish hatchback. In 2023, the year Chevy stopped selling it, the Bolt was the third-best-selling EV in America after Tesla’s top two models.
Yet the original had a few major deficiencies that reflected the previous era of EVs. The most egregious of which was its charging speed that topped out at around 50 kilowatts. Given that today’s high-speed chargers can reach 250 to 350 kilowatts — and an even faster future could be on the way — the Bolt’s pit stops on a road trip were a slog that didn’t live up to its peppy name.
Thankfully, Chevy fixed it. Charging speed now reaches 150 kilowatts. While that figure isn’t anywhere near the 350 kilowatts that’s possible in something like the Hyundai Ioniq 9, it’s a threefold improvement for the Bolt that lets it go from 10% to 80% charged in a respectable 26 minutes. The engineers said they drove a quartet of the new cars down old Route 66 from the Kansas City area, where the Bolt is made, to Los Angeles to demonstrate that the EV was finally ready for such an adventure.
From the outside, the 2027 Bolt is virtually indistinguishable from the old car, but what’s inside is a welcome leap forward. New Bolt has a lithium-ion-phosphate, or LFP battery that holds 65 kilowatt-hours of energy, but still delivers 255 miles of max range because of the EV’s relatively light weight. Whereas older EVs encourage drivers to stop refueling at around 80%, the LFP battery can be charged to 100% regularly without the worry of long-term damage to the battery.
The Bolt is GM’s first EV with the NACS charging standard, the former Tesla proprietary plug, which would allow the little Chevy to visit Tesla Superchargers without an adapter (though its port placement on the front of the driver’s side is backwards from the way older Supercharger stations are built). Now built on GM’s Ultium platform, the Bolt shares its 210-horsepower electric motor with the Chevy Equinox EV and gets vehicle-to-load capability, meaning you’ll be able to tap into its battery energy for other uses such as powering your home.
But it’s the price that’s the real wow factor. Bolt will launch with an RS version that gets the fancier visual accents and starts at $32,000. The Bolt LT that will be available a little later will eventually start as low as $28,995, a figure that includes the destination charge that’s typically slapped on top of a car’s price, to the tune of an extra $1,000 to $2,000 on delivery. Perhaps it’s no surprise that GM revealed this car just a week after the end of the $7,500 federal tax credit for EV purchases (and just a day after Tesla announced its budget versions of the Model Y and Model 3). Bringing in a pretty decent EV at under $30,000 without the help of a big tax break is a pretty big deal.
The car is not without compromises. Plenty of Bolt fans are aghast that Chevy abandoned the Apple CarPlay and Android Auto integrations that worked with the first Bolt in favor of GM’s own built-in infotainment system as the only option. Although the new Bolt was based on the longer, “EUV” version of the original, this is still a pretty compact car without a ton of storage space behind the back seats. Still, for those who truly need a bigger vehicle, there’s the Chevy Equinox EV.
For as much time as I’ve spent clamoring for truly affordable EVs that could compete with entry-level gas cars on prices, the Bolt’s faults are minor. At $29,000 for an electric vehicle in the U.S., there is practically zero competition until the new Nissan Leaf arrives. The biggest threats to the Bolt are America’s aversion to small cars and the rapid rates of depreciation that could allow someone to buy a much larger, gently used EV for the price of the new Chevy. But the original Bolt found a steady footing among drivers who wanted that somewhat counter-cultural car — and this one is a lot better.
“Old economy” companies like Caterpillar and Williams are cashing in by selling smaller, less-efficient turbines to impatient developers.
From the perspective of the stock market, you’re either in the AI business or you’re not. If you build the large language models pushing out the frontiers of artificial intelligence, investors love it. If you rent out the chips the large language models train on, investors love it. If you supply the servers that go in the data centers that power the large language models, investors love it. And, of course, if you design the chips themselves, investors love it.
But companies far from the software and semiconductor industry are profiting from this boom as well. One example that’s caught the market’s fancy is Caterpillar, better known for its scale-defying mining and construction equipment, which has become a “secular winner” in the AI boom, writes Bloomberg’s Joe Weisenthal.
Typically construction businesses do well when the overall economy is doing well — that is, they don’t typically take off with a major technological shift like AI. Now, however, Caterpillar has joined the ranks of the “picks and shovels” businesses capitalizing on the AI boom thanks to its gas turbine business, which is helping power OpenAI’s Stargate data center project in Abilene, Texas.
Just one link up the chain is another classic “old economy” business: Williams Companies, the natural gas infrastructure company that controls or has an interest in over 33,000 miles of pipeline and has been around in some form or another since the early 20th century.
Gas pipeline companies are not supposed to be particularly exciting, either. They build large-scale infrastructure. Their ratemaking is overseen by federal regulators. They pay dividends. The last gas pipeline company that got really into digital technology, well, uh, it was Enron.
But Williams’ shares are up around 28% in the past year — more than Caterpillar. That’s in part, due to its investing billions in powering data centers with behind the meter natural gas.
Last week, Williams announced that it would funnel over $3 billion into two data center projects, bringing its total investments in powering AI to $5 billion. This latest bet, the company said, is “to continue to deliver speed-to-market solutions in grid-constrained markets.”
If we stipulate that the turbines made by Caterpillar are powering the AI boom in a way analogous to the chips designed by Nvidia or AMD and fabricated by TSMC, then Williams, by developing behind the meter gas-fired power plants, is something more like a cloud computing provider or data center developer like CoreWeave, except that its facilities house gas turbines, not semiconductors.
The company has “seen the rapid emergence of the need for speed with respect to energy,” Williams Chief Executive Chad Zamarin said on an August earnings call.
And while Williams is not a traditional power plant developer or utility, it knows its way around natural gas. “We understand pipeline capacity,” Zamarin said on a May earnings call. “We obviously build a lot of pipeline and turbine facilities. And so, bringing all the different pieces together into a solution that is ready-made for a customer, I think, has been truly a differentiator.”
Williams is already behind the Socrates project for Meta in Ohio, described in a securities filing as a $1.6 billion project that will provide 400 megawatts of gas-fired power. That project has been “upsized” to $2 billion and 750 megawatts, according to Morgan Stanley analysts.
Meta CEO Mark Zuckerberg has said that “energy constraints” are a more pressing issue for artificial intelligence development than whether the marginal dollar invested is worth it. In other words, Zuckerberg expects to run out of energy before he runs out of projects that are worth pursuing.
That’s great news for anyone in the business of providing power to data centers quickly. The fact that developers seem to have found their answer in the Williamses and Caterpillars of the world, however, calls into question a key pillar of the renewable industry’s case for itself in a time of energy scarcity — that the fastest and cheapest way to get power for data centers is a mix of solar and batteries.
Just about every renewable developer or clean energy expert I’ve spoken to in the past year has pointed to renewables’ fast timeline and low cost to deploy compared to building new gas-fired, grid-scale generation as a reason why utilities and data centers should prefer them, even absent any concerns around greenhouse gas emissions.
“Renewables and battery storage are the lowest-cost form of power generation and capacity,” Next Era chief executive John Ketchum said on an April earnings call. “We can build these projects and get new electrons on the grid in 12 to 18 months.” Ketchum also said that the price of a gas-fired power plant had tripled, meanwhile lead times for turbines are stretching to the early 2030s.
The gas turbine shortage, however, is most severe for large turbines that are built into combined cycle systems for new power plants that serve the grid.
GE Vernova is discussing delivering turbines in 2029 and 2030. While one manufacturer of gas turbines, Mitsubishi Heavy Industries, has announced that it plans to expand its capacity, the industry overall remains capacity constrained.
But according to Morgan Stanley, Williams can set up behind the meter power plants in 18 months. xAI’s Colossus data center in Memphis, which was initially powered by on-site gas turbines, went from signing a lease to training a large language model in about six months.
These behind the meter plants often rely on cheaper, smaller, simple cycle turbines, which generate electricity just from the burning of natural gas, compared to combined cycle systems, which use the waste heat from the gas turbines to run steam turbines and generate more energy. The GE Vernova 7HA combined cycle turbines that utility Duke Energy buys, for instance, range in output from 290 to 430 megawatts. The simple cycle turbines being placed in Ohio for the Meta data center range in output from about 14 megawatts to 23 megawatts.
Simple cycle turbines also tend to be less efficient than the large combined cycle system used for grid-scale natural gas, according to energy analysts at BloombergNEF. The BNEF analysts put the emissions difference at almost 1,400 pounds of carbon per megawatt-hour for the single turbines, compared to just over 800 pounds for combined cycle.
Overall, Williams is under contract to install 6 gigawatts of behind-the-meter power, to be completed by the first half of 2027, Morgan Stanley analysts write. By comparison, a joint venture between GE Vernova, the independent power producer NRG, and the construction company Kiewit to develop combined cycle gas-fired power plants has a timeline that could stretch into 2032.
The Williams projects will pencil out on their own, the company says, but they have an obvious auxiliary benefit: more demand for natural gas.
Williams’ former chief executive, Alan Armstrong, told investors in a May earnings call that he was “encouraged” by the “indirect business we are seeing on our gas transmission systems,” i.e. how increased natural gas consumption benefits the company’s traditional pipeline business.
Wall Street has duly rewarded Williams for its aggressive moves.
Morgan Stanley analysts boosted their price target for the stock from $70 to $83 after last week’s $3 billion announcement, saying in a note to clients that the company has “shifted from an underappreciated value (impaired terminal value of existing assets) to underappreciated growth (accelerating project pipeline) story.” Mizuho Securities also boosted its price target from $67 to $72, with analyst Gabriel Moreen telling clients that Williams “continues to raise the bar on the scope and potential benefits.”
But at the same time, Moreen notes, “the announcement also likely enhances some investor skepticism around WMB pushing further into direct power generation and, to a lesser extent, prioritizing growth (and growth capex) at the expense of near-term free cash flow and balance sheet.”
In other words, the pipeline business is just like everyone else — torn between prudence in a time of vertiginous economic shifts and wanting to go all-in on the AI boom.
Williams seems to have decided on the latter. “We will be a big beneficiary of the fast rising data center power load,” Armstrong said.