Oh oh force a divorce of sales and service. Terrible incentives and the main reason dealers steer ppl away from EVs (low maintenance).
And bust up anti competitive service lock in. Just the worst.
Final EIA-860 is out, and 2025 really did it: 54 GW of new U.S. electric capacity, 96% clean. Solar again carries the offense, and we built more storage in 2025 than the cumulative total through 2023. More and more and more additions... but also record low retirements.
The logical fallacy that uncertainty => 0 is needs a snappy name.
$7.4M per life may be wrong, but $0 is extra super wronger.
Hard to square with Section 812 of the Clean Air Act which requires EPA to conduct scientifically reviewed CBA that includes "overall health, welfare, ecological, and economic benefits".
Using LLMs to annotate text for anything scientific requires a lot of human validation *every time.*
“They got a bot to churn out bot poetry. Then they judged how well the poems jailbroke the chatbots … by using other chatbots to do the judging!”
Electrons themselves barely move! On the order of meters per week in a reasonable DC circuit and hardly wiggle in AC. Electric fields traveling at ~light speed, directed by, but not in, wires, deliver energy. Pretty weird.
Mild take: 'Electrons' is simply a popular metaphor and that's fine 🤓
Electricity is profoundly unintuitive for most of us. Like water flowing through pipes is helpful, but wrong.
Fair!
I would not be surprised if the pm effects are > change in traffic volumes because moving diesel trucks and busses from full stop over and over is real bad.
You have me convinced my prior should have low prob of PM effects >2x the change in traffic. And the method for the CI is sus.
But parallel trends with other cities is violated for the reasons you mention (w-fire smoke, elec. gen) and they imply (local wind direction). Sometimes you just can't DiD.
The way back machine is great, but maybe it’s time to make forks and wikis of these sites e.g. @audreyt.org
you could call this take “don’t think of a framed elephant“
Also a bummer that higher ethanol blends appear to increase local ozone pollution. www.journals.uchicago.edu/doi/abs/10.1...
Should have been Fig 1.
New in Nature Climate Change: @asawatten.bsky.social and I show how common marginal emissions methods can miss system effects and substitution. Using hourly, long-run modeling can materially alter emissions benefits, which we show for rooftop solar. Paper + summary 👇
...
3. Fixed MERs ignore time of day and year, which are really important for variable renewables (because substitution effects)
4. The marginal effect of a particular technology or action under a binding carbon cap is always zero (because substitution effects)
Here is the tl;dr of our 4 main points about quantifying emissions effects:
1. MERs don't make sense for non-marginal changes
2. UNFCCC includes guidance and weights for operating margin and build margin--the build margin is probably much larger especially in places with lots of renewables
...
🚨Oh hey @bistline.bsky.social and I have a short piece in Nature Climate Change out today. It's a response to a great study on global rooftop solar, but it's *really* about the misuse of marginal emissions rates. Something we've been thinking a lot about. #energysky
www.nature.com/articles/s41...
Good news / bad news on U.S. solar in the new LBNL report:
• Utility-scale solar >50% of 2024 nameplate additions
• But solar's average costs are up ~25% vs. 2022
Record build, rising costs. Two things can be true at once.
emp.lbl.gov/utility-scal...
📢 Just launched: Our REGEN energy systems model is now open source!
REGEN is a detailed and flexible energy systems modeling platform designed to explore a wide range of long-term scenarios. Check out the code, data, and documentation at the links below.
New Energy Institute Blog Post: Winners and Losers from Interregional Transmission - by Lucas Davis
energyathaas.wordpress.com/2025/04/07/w...
Build affordable homes
Destroy the constitution and economy
I’m for some things and against others
Nice! Would be cool to see the margin difference on the vertical axis in the second fig.
In the Energy Institute blog this week, Meredith Fowlie has an excellent explainer about what the IRA is really likely to cost per ton of GHG reduction based on a new paper from EPRI.
energyathaas.wordpress.com/2025/03/31/a...
#EnergySky
My working paper with @bistline.bsky.social is the subject of today's @ucenergyinstitute.bsky.social blog post by Meredith Fowlie. Honored!
energyathaas.wordpress.com/2025/03/31/a...
BTC is a computation treadmill.
Jensen's paradox (⬆️efficiency=>⬆️demand) is weak for many things (cars, lights) bc demand is inelastic. Not so for crypto mining!
Makes sense. Miners mine until marginal cost=marginal benefit. ⬆️eff=>⬇️mc=>⬆️mining=>⬇️mb. An EPRI brief: www.epri.com/research/pro...
Google Gemini answers: No, if confidence intervals overlap, the difference between the two estimates is not statistically significant. However, it's possible for the difference to be statistically significant even if the confidence intervals overlap.
It's important to cover all the bases
As expected, the Trump team is already deleting climate info from government websites. In anticipation, our team at Urban Ocean Lab created a permanent archive of 100+ key resources and published a permanent archive: www.urbanoceanlab.org/resource-hub 👩🏽💻
Check out my new working paper with amazing ND grad students Bill Kakenmaster and Ben Francis
We show, among other things, that climate attribution among R House candidates depends on district-level climate vulnerability and fossil fuel employment reliance
osf.io/preprints/os...
Waste of paint! Guernica has stopped exactly ZERO wars.
