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Here’s what we know so far, including what’s changed since last year.
The Biden administration announced final new emissions standards for cars on Wednesday, significantly curtailing both the carbon dioxide and the toxic soot and chemicals that spew from the tailpipes of the nation’s light- and medium-duty vehicles.
With that, Biden is checking off one of the two most important pieces of unfinished climate business he has left on his first term to-do list. The rules tighten pollution limits gradually over six years, beginning in 2027. In concert with other Biden policies including consumer tax credits for electric vehicles purchases, initiatives to build out charging infrastructure, and support for domestic manufacturing, the standards will help accelerate the transition to electric vehicles that is already well underway.
Transportation is responsible for more planet-warming emissions than any other part of the U.S. economy. To get the country on the path of reaching net zero emissions by 2050, as Biden has set out to do, curbing car emissions is unavoidable.
When the rules were originally proposed last year, we wrote that they would “roughly halve carbon pollution from America’s massive car and truck fleet, the world’s third largest, within a decade.” That’s still broadly the case, even though the final version features one big change: Automakers will now have more time to cut emissions from their fleets. They will still have to achieve the same standard in 2032 as what was originally proposed, but they can transition to it more slowly.
Ahead of the official release, senior administration officials downplayed the significance of the slower rollout. They argued that giving automakers, dealers, and labor unions more time in the near-term would make for a sturdier rule, and that the cumulative emissions benefits of the final standard converge with the original proposal. At a White House event on Wednesday, members of the president’s climate team built on that message, framing the new rules not as a government mandate but rather as a tool to give consumers more of what they already want. “We are witnessing a technological revolution driven by the markets,” Environmental Protection Agency administrator Michael Regan proclaimed.
Also speaking at the event was John Bozzella, head of the Alliance for Automotive Innovation, which represents most U.S. automakers, including the Big Three. Bozzella praised the administration for heeding the industry’s concerns over the original proposal’s rapid phase-in and said the new rules were “much improved” from what had initially been proposed. “Pace matters to automakers,” he said. “It certainly matters to consumers.”
The full rule was released mid-day Wednesday, and we’re digging through it to find out exactly what else has changed. But here’s what we know so far.
The rules strengthen greenhouse gas emission limits, in terms of grams of CO2 per mile, that automakers will have to adhere to, on average, across their product lines. They also tighten limits on dangerous pollutants, including particulate matter — the tiny bits that make up soot — and nitrogen oxides.
This chart shows how the cuts in the final rule compare to those proposed in the draft rule. The version released last April required automakers to make steeper reductions to carbon emissions in the first three years, while the final rule allows for a more gradual reduction.
No. They are what’s called technology-neutral standards, meaning that automakers have options for how to comply with them. Since automakers have to meet the emissions targets on average across their fleets, rather than for each vehicle, it’s likely they’ll produce a range of options in 2032, including plug-in hybrids, regular hybrids, and even some gas cars with improved efficiency — though their fleets will probably have a much higher proportion of EVs than they do now.
While that generally hasn’t changed from the preliminary rule, the Biden administration’s messaging around it has.
When it released the initial proposal, the EPA emphasized that the least-cost path to achieving the standards would be for about two-thirds of new vehicles sold in 2032 to be electric. Although this was just one potential scenario, it was widely interpreted as a target or even a mandate — particularly by Biden’s political opponents.
On Tuesday, administration officials said that the two-thirds finding had been based on limited data. The EPA now estimates that EVs may make up anywhere between 30% and 56% of new light-duty sales from model years 2030 to 2032.
By 2032, the light-duty fleet on offer from automakers will emit half as much carbon as vehicles on the market in 2026.
The EPA estimates that these rules will avoid 7.2 billion metric tons of carbon from 2027 to 2055, which accounts for the vehicles’ full lifetime on the road. That’s slightly less than the 7.3 billion metric tons the initial proposal would have avoided.
The rules will change the mix of vehicles sold by automakers, encouraging dealers to sell more hybrid, plug-in hybrid, and battery electric vehicles. They’re also expected to save Americans roughly $62 billion in fuel costs and avoided maintenance costs, since the EPA assumes that EVs are still cheaper to operate and maintain. On average, a consumer will save about $6,000 over the lifetime of a 2032 vehicle compared to one sold in 2026, according to the agency.
The tailpipe rule will likely increase the cost of building each vehicle, which could translate into higher prices for consumers. However, state and federal tax incentives — as well as the cheaper cost of operating and fueling EVs — will offset that increase.
The rules are projected to deliver major health and environmental benefits to the public. The EPA estimates they will produce $37 billion in benefits from improved public health and climate mitigation, including avoided hospitalizations and premature deaths.
This is what the EPA was created to do — use the best available science to protect human health and the environment. But even after decades of improvements in air quality, there is still a lot of room for improvement. More than one third of the population still live in places with unhealthy levels of ozone or particulate pollution, according to The American Lung Association’s most recent “ state of the air” report. The risks are deeply unequal, with people of color making up half of those exposed. The report also noted that climate change is making it harder to protect people, as heat, drought, and wildfires increasingly lead to spikes in these pollutants. Altogether, ozone and particulate matter are responsible for more than 60,000 premature deaths annually, according to the Health Effects Institute, a nonprofit, independent research organization funded by the EPA and automakers.
Officials stressed that EV sales are already shattering analyst predictions, prices are dropping, and product availability is growing. They see this rule as part of a larger ecosystem of policies — including those in the Inflation Reduction Act, the Bipartisan Infrastructure Law, and the CHIPS and Science Act — that are revitalizing American manufacturing and creating jobs while also contributing to the global fight against climate change. The EPA’s press release notes that companies have announced more than $160 billion in domestic clean vehicle manufacturing, and that the auto manufacturing sector as a whole has added more than 100,000 jobs since Biden took office.
The administration is also, perhaps less loudly, selling the pollution standards as a path to freedom from fossil fuels. During the press call Tuesday, a senior administration official said the rules would enable consumers to break loose from the oil industry’s grip on how we get around and how much it costs us.
The new rules kick in for cars in model year 2027, which will go on sale in 2026 and are being designed right now. Although the Biden administration has suggested that the new rules have won the support of the car industry — including automakers, labor unions, and dealerships — it could still face a court challenge from attorneys general in Republican-controlled states. Republican officials have repeatedly sued to block the Biden administration’s climate policies.
It’s unclear how the Supreme Court would respond to such a challenge. Although the Court has long backed the EPA’s ability to limit climate pollution from cars and trucks, its hard-right majority has recently rolled back what were once thought to be bedrock environmental laws. In this term alone, the Court seems likely to restrict the EPA’s ability to regulate toxic air pollution while sweeping away a central legal doctrine of environmental regulation.
Editor’s note: This story has been updated to reflect the White House event announcing the new rules.
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Did a battery plant disaster in California spark a PR crisis on the East Coast?
Battery fire fears are fomenting a storage backlash in New York City – and it risks turning into fresh PR hell for the industry.
Aggrieved neighbors, anti-BESS activists, and Republican politicians are galvanizing more opposition to battery storage in pockets of the five boroughs where development is actually happening, capturing rapt attention from other residents as well as members of the media. In Staten Island, a petition against a NineDot Energy battery project has received more than 1,300 signatures in a little over two months. Two weeks ago, advocates – backed by representatives of local politicians including Rep. Nicole Mallitokis – swarmed a public meeting on the project, getting a local community board to vote unanimously against the project.
According to Heatmap Pro’s proprietary modeling of local opinion around battery storage, there are likely twice as many strong opponents than strong supporters in the area:
Heatmap Pro
Yesterday, leaders in the Queens community of Hempstead enacted a year-long ban on BESS for at least a year after GOP Rep. Anthony D’Esposito, other local politicians, and a slew of aggrieved residents testified in favor of a moratorium. The day before, officials in the Long Island town of Southampton said at a public meeting they were ready to extend their battery storage ban until they enshrined a more restrictive development code – even as many energy companies testified against doing so, including NineDot and solar plus storage developer Key Capture Energy. Yonkers also recently extended its own battery moratorium.
This flurry of activity follows the Moss Landing battery plant fire in California, a rather exceptional event caused by tech that was extremely old and a battery chemistry that is no longer popular in the sector. But opponents of battery storage don’t care – they’re telling their friends to stop the community from becoming the next Moss Landing. The longer this goes on without a fulsome, strident response from the industry, the more communities may rally against them. Making matters even worse, as I explained in The Fight earlier this year, we’re seeing battery fire concerns impact solar projects too.
“This is a huge problem for solar. If [fires] start regularly happening, communities are going to say hey, you can’t put that there,” Derek Chase, CEO of battery fire smoke detection tech company OnSight Technologies, told me at Intersolar this week. “It’s going to be really detrimental.”
I’ve long worried New York City in particular may be a powder keg for the battery storage sector given its omnipresence as a popular media environment. If it happens in New York, the rest of the world learns about it.
I feel like the power of the New York media environment is not lost on Staten Island borough president Vito Fossella, a de facto leader of the anti-BESS movement in the boroughs. Last fall I interviewed Fossella, whose rhetorical strategy often leans on painting Staten Island as an overburdened community. (At least 13 battery storage projects have been in the works in Staten Island according to recent reporting. Fossella claims that is far more than any amount proposed elsewhere in the city.) He often points to battery blazes that happen elsewhere in the country, as well as fears about lithium-ion scooters that have caught fire. His goal is to enact very large setback distance requirements for battery storage, at a minimum.
“You can still put them throughout the city but you can’t put them next to people’s homes – what happens if one of these goes on fire next to a gas station,” he told me at the time, chalking the wider city government’s reluctance to capitulate on batteries to a “political problem.”
Well, I’m going to hold my breath for the real political problem in waiting – the inevitable backlash that happens when Mallitokis, D’Esposito, and others take this fight to Congress and the national stage. I bet that’s probably why American Clean Power just sent me a notice for a press briefing on battery safety next week …
And more of the week’s top conflicts around renewable energy.
1. Queen Anne’s County, Maryland – They really don’t want you to sign a solar lease out in the rural parts of this otherwise very pro-renewables state.
2. Logan County, Ohio – Staff for the Ohio Power Siting Board have recommended it reject Open Road Renewables’ Grange Solar agrivoltaics project.
3. Bandera County, Texas – On a slightly brighter note for solar, it appears that Pine Gate Renewables’ Rio Lago solar project might just be safe from county restrictions.
Here’s what else we’re watching…
In Illinois, Armoracia Solar is struggling to get necessary permits from Madison County.
In Kentucky, the mayor of Lexington is getting into a public spat with East Kentucky Power Cooperative over solar.
In Michigan, Livingston County is now backing the legal challenge to Michigan’s state permitting primacy law.
On the week’s top news around renewable energy policy.
1. IRA funding freeze update – Money is starting to get out the door, finally: the EPA unfroze most of its climate grant funding it had paused after Trump entered office.
2. Scalpel vs. sledgehammer – House Speaker Mike Johnson signaled Republicans in Congress may take a broader approach to repealing the Inflation Reduction Act than previously expected in tax talks.
3. Endangerment in danger – The EPA is reportedly urging the White House to back reversing its 2009 “endangerment” finding on air pollutants and climate change, a linchpin in the agency’s overall CO2 and climate regulatory scheme.