ReEDS has tx line capacity in both direction. Many cap expansion models use a single value. Better to use the avg or max? Max makes sense if power flows continue in the same direction. Any thoughts? @wilsonar.bsky.social @nworbmot.bsky.social @oetenergy.bsky.social @bistline.bsky.social 🔌💡

🧪Let’s set the record straight. AGAIN Andrew Wakefield’s paper was RETRACTED by The Lancet in Feb 2010.

My new favorite bathroom sign

The #USRSE (research software engineering) conference wrapped up today. I was excited about 1) the number of undergrads attending, and 2) that there are already recent college grads working in the field. It's great to see the field expand beyond those of us with PhDs that stumbled into it.

I visited the apartment building ICE raided on Tuesday today. Story to come, but you can walk right in. Half of the apartments have no doors on them. Children's stuff abandoned in some flats. *Citizen* residents told me they were arrested and held for hours in zipties. This is America

Me, a rock climber: I have calluses on all my fingers. Me, after getting a new set of GravelKing tires on my bike: Oww, my thumbs hurt 🥺

statmodeling.stat.columbia.edu/2025/09/24/m... "Levitt was a University of Chicago professor, he has (by academic standards) nearly infinite resources, he could study whatever he wants, and he’s going for . . . clicks?"

NEW TOOL: a one-stop, searchable home for 250+ state energy and climate policies, targets, and incentives. Perfect for planners, policy-makers, and analysts. apps.epri.com/energy-polic...

Just found out that EIA downscales annual generation to monthly at most hydro plants using a sample of surveyed plants. ORNL has a paper where they reconstruct monthly generation from 1980-2019 at plants >10MW using local proxies. #EnergySky @catalyst.coop www.nature.com/articles/s41...

Living the dream. All 6 of biked to the beach!

Today on SHIFT KEY Summer School: how do electricity markets work? I give @robinsonmeyer.bsky.social a primer on marginal generators, bid curves, and capacity markets. Listen @heatmap.news or wherever you get your podcasts. 🔌💡

#EnergySky I noticed that Idaho Power lists ALL of their existing/proposed storage units as flow batteries (FLB) in EIA860. They also show max discharge rates as 4-10x the charge rate. Duration is 4 hours in all cases. Anyone know if these are just LiB, or actually something different?

With Copilot and Claude 4 it finally feels like I have a tool that can take instructions (or vague ideas) and implement them in my code. I *could* have written a decorator that fills function args using dict values in a class singleton, but I would have taken days. Just did it in an afternoon 🤯

Anyone have a good analysis of the GW of potential gas plants by COD in the US, based on known gas turbine supply deliveries? #energysky

I'm digging into the EIA 860 Energy Storage file, where there are a bunch of columns that describe its application (arbitrage, frequency reg, backup power, etc). Values are "Y" or "PR". But PR isn't described anywhere! After some digging, I'm pretty sure that PR is "primary". You're welcome.

It’s helpful to remember that not everything in the world is turning to shit. Last week my family went to Banff, which was absolutely incredible. Thanks Canada, for working to keep it wild.

Later today, 12pm ET

ICE just arrested Brad Lander, the NYC Comptroller and one of the leading candidates for Mayor, without grounds. He was conducting routine immigration court work, escorting individuals from hearings. He asked ICE for their warrant - well within his legal rights. This is political intimidation.

And again, the measles vaccine is estimated to have saved more than 90 million lives globally in the last 50 years. ourworldindata.org/measles-vacc...

Not true. I see you're a luxury watch dealer. I'm also interested in watches. Let me show you how free and easy migration has allowed you to earn a living. 🧵

You and your children will breathe more air pollution because of this action. People will have more asthma attacks. People will have more heart attacks. All while climate impacts accelerate.

The EPA's reasoning to justify repealing greenhouse gas regulations for power plants is so tortured, I feel like my brain has been waterboarded after reading it 🤯 The justification goes like this...🧵(1/8)

🚨 NEW RESEARCH: The energy transition is more disruptive—and could move much faster—than most people think. It’s not just about swapping old tech for new. Shift to clean energy is a complex web of feedback loops, tipping points & surprises. Our new 📖 👇 www.scurveeconomics.org/publications... 🧵

Cuts have consequences, illustrated. As seen on TV 📺

It has long been clear DOGE's numbers are made up, but here in response to my comment they're giving up the game: They're not doing anything like cost-benefit analysis. "Savings" is a transfer from U.S. households to businesses. It's grift all the way down. www.nytimes.com/2025/05/30/u...

Thanks to the incredible folks at EIA who responded to many emails as I tried to understand the data in NEMS.

This guy stole $10 million from the employees of his nursing home to buy himself a luxury yacht and Cartier watches. He PLED GUILTY. And because his Mom gave Trump $1 million, he just got a pardon. And this story barely makes the news today. WTF. www.nytimes.com/2025/05/27/u...

I’m watching the destruction of our country in real-time and still manage to be amazed at what each new day brings.

TLDR -- you can get unit-level O&M data out of NEMS for generators in the US! The data are easy to misunderstand so I've provided some helpful details. @catalyst.coop

Long before EIA had an open NEMS GitHub repo, I started using a 2019 AEO report on existing generator O&M costs. It splits plants into a few cost bins by size. Turns out EIA doesn't use those values! In an addendum they say plants are split into further subgroups. 1/n www.eia.gov/analysis/stu...

Today on SHIFT KEY: how the GOP mega-bill would reshape the US energy economy: heatmap.news/podcast/shif... An exclusive look at REPEAT Project's new report on the impacts of policy repeal on US energy costs, investment, emissions & more. Stay tuned at repeatproject.org today for more soon! 🔌💡

AEO 2025 was released in April and I wanted to see if coal prices for electric power changed from 2023. The 2023 prices were lower than observed prices in some regions and led models to run coal at high CFs. Good news--prices start ⬆️! Then they crater as NEMS retires nearly *all* coal capacity. 1/3

There’s so much happening right now, I thought I’d put together a running thread on the dismantling of #climate and research and knowledge infrastructure in the United States 🧵

No one has been returned from CECOT even as we learn more and more about the arbitrary and illegal nature of this operation. The Republicans continue to stonewall the courts. Don’t let this story slip from view.

I just attended a faculty meeting today to discuss these issues & let me tell you, it's a pretty grim outlook. We're going to lose talented international students, have to downsize research efforts, train less postdocs, accept less students and produce less research to benefit America & the world. 😡

Historians: Quibbling Over Exact Definition Of Concentration Camp Sign Of Healthy Society

Name that national lab. Just a short hike from the lab to this view.

Name that national lab. Hard level.

We are truly in the dumbest timeline.

Those trying to understand the tariffs as economic policy are dangerously naive. No, the tariffs are a tool to collapse our democracy. A means to compel loyalty from every business that will need to petition Trump for relief. 1/ A 🧵 to explain his plan and how we fight back.

Anyway here are the new tariffs: China 34% EU 20% Vietnam 46% Taiwan 32% Japan 24% India 26% South Korea 25% Thailand 36% Switzerland 31% Indonesia 32% Malaysia 24% Cambodia 49% United Kingdom 10% South Africa 30% Brazil 10% Bangladesh 37% Singapore 10% Israel 17%

Again, he's a Special Government Employee, which is a government consultant that can be brought on for a short period of time to provide specific knowledge. They have no decision-making authority or management authority, they report directly to a fed employee. That's it. Press could drumbeat this.

He fired the black chairman of the joint chiefs for being woke and hired his brother.

The Trial of John Snow "Yes, your honor, I did indeed remove the handle from the Broad Street Pump." "Yes, I realize now it is immaterial that cholera is waterborne, not miasmatic." "Yes, your honor, I plead guilty to directing people to believe one idea over another regarding health outcomes."

Geier was disciplined for i practicing medicine without a license by helping his father write false diagnoses for children with autism in order to prescribe them Lupron, based on a completely baseless claim that vaccines increase testosterone levels. www.washingtonpost.com/health/2025/... 1/4

If you work with US energy system data we want to better understand your needs, frustrations, and use cases so we can improve the open data we publish. Want to fill out/share our short survey? #EnergySky @jessedjenkins.com @ricoconnell.bsky.social @gschivley.bsky.social forms.gle/RKi6EMQoHCPt...

10 years ago, face tracking and mood detection was university level research. Now it's showing up in elementary school STEM fairs with visual programming. 🤯

If someone asks if you "support DEI" as a politician, the correct answer is some shade of, "I support American workers not having to deal with racism, sexism, and bigotry when they're just trying to do their jobs. If a company's DEI policy actually does that, great, if not, something should."

My son started learning python 3 weeks ago, mostly me helping him draw stuff with turtle and write some quizzes. Yesterday ChatGPT helped him write a basic snake game, then make improvements, then save a high score to file. IDK if this is a good way to learn, but it's amazing to watch!