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Ari Peskoe

@aripeskoe.bsky.social
3.9K followers 473 following 667 posts

Director of the Electricity Law Initiative at Harvard Law.

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Ari Peskoe @aripeskoe.bsky.social · 23/09/2026
I wrote about my favorite topic: RTO governance. FERC is finally giving it some attention. I wrote about FERC's authority: statepowerproject.wordpress.com/wp-content/u... There's a condensed version on Utility Dive (but you're only cheating yourself): www.utilitydive.com/news/ferc-op...
statepowerproject.wordpress.com
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Ari Peskoe @aripeskoe.bsky.social · 15/09/2026
static.klipy.com
Buddy The Elf Struggles with Revolving Door
Alt: Buddy The Elf Struggles with Revolving Door
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Ari Peskoe @aripeskoe.bsky.social · 10/09/2026
In 2014, I started tracking litigation against clean energy programs based on the dormant Commerce Clause or preemption under the Federal Power Act. To my surprise, these cases keep coming (in part bc states keep enacting poorly written laws). The newest: statepowerproject.org/pennsylvania...
statepowerproject.org
Pennsylvania
Commerce Clause and Supremacy Clause Challenge to Transmission Permitting Decision Transource LLC v. Defrank Commerce Clause Challenge to Alternative Energy Portfolio Standard West Virginia v. Defr…
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Ari Peskoe @aripeskoe.bsky.social · 04/09/2026
this is an extension cord appreciation thread.
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AERE @aereorg.bsky.social · 19/08/2026
📢 Out now in the 🏖️July 2026 issue🏖️ of #JAERE! 📢 "Environmental Liability, Insurance, and Market Structure in Coal Mining" by Tom Eisenberg and Joshua Macey @joshuamacey.bsky.social. 📎 Read it here: buff.ly/yYUMLvt 📈📉 #Econsky
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Ari Peskoe @aripeskoe.bsky.social · 29/07/2026
"Do all of the ants know each other?" -5 year old, just asking a question
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Ari Peskoe @aripeskoe.bsky.social · 30/06/2026
These are the best players in the world. They should keep playing. An NHL playoff game went to 5 overtime periods in 2020! Everyone survived.
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CJ Fogler @cjzero.bsky.social · 04/06/2026
Incredible answer from KAT about not being nervous before game one but having a calmness that he felt came from his Mom
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Heatmap News @heatmap.news · 02/06/2026
BREAKING: A group of states led by @newyorkstateag.bsky.social sued the Trump administration over its deal with TotalEnergies to buy back two offshore wind leases worth nearly $1B. Here’s @emilypont.bsky.social with the details: heatmap.news/energy/total...
heatmap.news
New York Just Filed the First Major Challenge to Trump’s TotalEnergies Deal
Attorney General Letitia James leads a group of states suing the administration’s move to buy back two offshore wind leases.
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Ari Peskoe @aripeskoe.bsky.social · 31/05/2026
Victim of the Massachusetts Sonic Boom of 2026. This lil guy fell off a shelf, losing a foot. He can no longer stand under his own power and will be euthanized.
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Danny Cullenward @ghgpolicy.org · 17/05/2026
I'm going to collect a few reactions to this thread for comment, as it's an instructive moment in the politics of climate science (however niche). 🧵
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Ari Peskoe @aripeskoe.bsky.social · 16/05/2026
No. Liberty Utilities -- which delivers electricity to 49,000 homes and businesses in the Lake Tahoe area -- needs to find a new supplier. Liberty knew this was coming. It is conducting an RFP. Everything will be fine. But yes, NV Energy wants to provide the energy it generates to data centers.
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Stephen Jarvis @stephenjarvis.bsky.social · 11/05/2026
My paper on utility regulation with Karl Dunkle Werner is now published in @jpube.bsky.social. We examine whether energy utility companies have been allowed to earn excess profits and what the implications are for both utility investment incentives and consumer costs. (1/6) 🧵 🔌💡
sciencedirect.com
Rate of return regulation revisited
Utility companies recover their capital costs through regulator-approved rates of return. Using a comprehensive database of utility rate cases, we fin…
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Luke Herrine @lookheron.bsky.social · 07/05/2026
FTC is co-hosting an event on the state of consumer finance at George Mason's law school. There are layers here. 1) This is ostensibly announcing a CFPB rpt. But I guess now that CFPB is basically shut down, the FTC is...taking over consumer finance? ... www.ftc.gov/news-events/...
ftc.gov
FTC to Co-Host Workshop on Financial Services with Institute for Consumer Financial Choice on May 14-15
The Federal Trade Commission will co-host a workshop on May 14-15, 2026, with George Mason University Law School’s Institute for Consumer Financial Choice (ICFC) focusing on developments in the fin
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Ari Peskoe @aripeskoe.bsky.social · 06/05/2026
Just learned that there is a "North American Wood Pole Council." It promotes "up-to-date scientific and economic information" about wood utility poles. "Wood poles are part of our overall culture." It has a coloring book. woodpoles.org
woodpoles.org
Wood Utility Poles – Wood That Lasts
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Justin Gundlach @justingundlach.bsky.social · 05/05/2026
The Future of Heat Initiative is hiring. If you're a lawyer who wants to make waves with state utility commissions -- or if you know a worthy lawyer who might be interested -- go ahead and check out the posting: thefutureofheat.com/s/Regulatory...
Job Openings: Regulatory Counsel

FoHI
Copyright 2025
The Future of Heat Initiative

Locations
New York, NY
Cambridge, MA
Columbus, OH
Philadelphia, PA
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The New Yorker @newyorker.com · 23/04/2026
Today’s Daily Cartoon, by Kyle Bravo.
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Ari Peskoe @aripeskoe.bsky.social · 27/04/2026
Nice piece by @robinsonmeyer.bsky.social in the NYT. Draws readers in by leading with AI data centers (timely, newsworthy, hot) but then pivots to regional transmission governance, a topic no one reads about by choice. Also has fancy graphics. www.nytimes.com/interactive/...
nytimes.com
Opinion | Why Is Your Electric Bill Going Up? Blame the Broken Grid.
Our grid is too old and our supply of electricity too small. If we don’t meet this moment, we will face an impoverished future.
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Ari Peskoe @aripeskoe.bsky.social · 16/04/2026
Coincidence that I filed a comment in this docket yesterday and then FERC announces the very next day that it's taking action? Yes. Yes it is.
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Ari Peskoe @aripeskoe.bsky.social · 15/04/2026
I have two pieces today on how a 1990s FERC policy intended to spur competitive markets is being understood to prevent data centers from covering their transmission costs. FERC Comment: elibrary.ferc.gov/eLibrary/fil... UtilityDive: www.utilitydive.com/news/ferc-tr...
utilitydive.com
An outdated FERC policy is undermining the White House’s ratepayer protection pledge
FERC should revisit its transmission pricing policy and require utilities to assign the full costs of service to power-hungry data centers, writes Harvard’s Ari Peskoe.
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Ari Peskoe @aripeskoe.bsky.social · 14/04/2026
I'm tracking 5 cases filed under Executive Order 14260: Protecting American Energy from State Overreach. What am I missing? -VT and NY climate superfund laws -HI and MI (dismissed) to prevent filing complaints against fossil fuel cos. -Morris Township, NJ ban on fossil fuels in new buildings
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Ari Peskoe @aripeskoe.bsky.social · 04/04/2026
What should I do in the Bay area in April with kids 11 and 6? Thank you!
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John Smillie @johnsmillie42.bsky.social · 10/03/2026
youtu.be/4BPU5mKipNo?... Was listening to They Might be Giants for Kids this weekend while driving with the fam, and now this worm is firmly lodged in my ear.
youtu.be
They Might Be Giants - Electric Car - Official Music Video
YouTube video by Disney Music
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Ari Peskoe @aripeskoe.bsky.social · 05/03/2026
I just noticed that the domain wecansolveit.org is up for sale -- www.youtube.com/watch?v=qi6n...
wecansolveit.org
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Ari Peskoe @aripeskoe.bsky.social · 04/03/2026
I regret my decision to watch the White House / Big Tech press conference about their "ratepayer protection pledge." The highlight was when he went off-script and admitted that this is all about providing "PR help" to Big Tech companies.
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Ari Peskoe @aripeskoe.bsky.social · 25/02/2026
Who's excited to read more briefs today about FERC Order No 1920?
media.tenor.com
a close up of a stuffed monkey wearing a green shirt and a green jacket .
ALT: a close up of a stuffed monkey wearing a green shirt and a green jacket .
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Keubiko 🇨🇦 🇺🇸🏳️‍🌈🏳️‍⚧️🇺🇦 💪 @keubiko.bsky.social · 11/02/2026
The cost of datacenters is getting expensive. Therefore I will build them on the Moon. Where I'll also be building my satellites. That I'll be yeeting into Earth's orbit with a giant space catapult. Because I'm all about low cost.
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Jason Concepcion @netw3rk.bsky.social · 12/02/2026
I will never understand the fascination with coal. who are you, thomas the tank engine?
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Transition Show @transitionshow.bsky.social · 11/02/2026
In Ep. 269, @aripeskoe.bsky.social rejoins us to review Trump’s attacks on the energy transition in the US and explore the legal options for defending it. Wind farms, solar farms, coal plants, regulations,Venezuela, UN climate bodies, oh my! xenetwork.org/ets/episodes...
xenetwork.org
[Episode #269] – Trump's War on the Energy Transition | The Energy Transition Show
Can the energy transition in the US survive President Trump’s attacks on it?
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Ari Peskoe @aripeskoe.bsky.social · 04/02/2026
I filed a brief for the Organization of PJM States (OPSI) in defense of FERC Order No 1920, which requires long-term regional transmission planning. The brief emphasizes that protecting consumers requires coordinated fed-state action. It's free! statepowerproject.wordpress.com/wp-content/u...
statepowerproject.wordpress.com
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Jeff St John @jeffstjohn.bsky.social · 09/01/2026
The Trump admin’s push to force-run aging coal plants has entered a new phase: ordering two broken-down coal units in Indiana and Colorado that could take months and millions of dollars to bring back online to run under 90-day emergency declarations: www.canarymedia.com/articles/fos... #energysky
canarymedia.com
Trump admin’s must-run orders put broken-down coal plants in a bind
Utilities are already paying to keep aging coal plants open under DOE emergency orders. New demands to revive nonfunctioning units add costs and legal…
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Sean Casten @seancasten.bsky.social · 07/01/2026
Good lord.
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Ari Peskoe @aripeskoe.bsky.social · 30/12/2025
Do you wish you could spend New Years reading 6 newly filed briefs about federal/state responsibilities over resource adequacy? Do you also want to learn why DOE's orders keeping coal plants open are very illegal? OK, this is for you - statepowerproject.org/challenges-t...
statepowerproject.org
Challenges to DOE 202(c) Orders
Section 202(c) of the Federal Power Act empowers the Secretary of Energy to order “temporary connections” of generation and transmission in response to a war or an emergency that causes…
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David Hsu @dhsu.bsky.social · 15/12/2025
One of my most delightful academic experiences this semester was our reading seminar on infrastructure. Here were the ground rules: 1. we all read 12 of 15 books new to us 2. no laptops or phones 3. read widely bc of our polycrises Reading books was just great. Here's what we read and reactions:
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Ari Peskoe @aripeskoe.bsky.social · 12/12/2025
Market inefficiency? Outdated property right? Neglect? A shiny plaque at my local library notes that this dilapidated reading bench is sponsored by a bank that was merged out of existence in 1988.
Shiny plaqueDilapidated bench
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Ari Peskoe @aripeskoe.bsky.social · 11/12/2025
Wow. How'd these people get such a good deal? I wish my day care had cost only $20k per year.
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Michael Wara @michaelwara.bsky.social · 01/12/2025
Omg Travis Kavulla on odd lots! podcasts.apple.com/us/podcast/o...
podcasts.apple.com
Travis Kavulla Explains Why Electric Bills Shot Up
Podcast Episode · Odd Lots · 12/01/2025 · 57m
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Keith Goldberg @kdgscribe.bsky.social · 25/11/2025
My latest for @law360.bsky.social: A federal judge refused to block @ferc.gov’s $1B enforcement case against an #energysky efficiency aggregator, saying the company hasn’t shown that it violates their 7th Amendment rights to a jury trial. www.law360.com/articles/241...
law360.com
Judge Lets FERC's $1B Market Manipulation Case Proceed - Law360
A North Carolina federal judge on Monday declined to block the Federal Energy Regulatory Commission from imposing nearly $1 billion in enforcement penalties against an energy efficiency aggregator, sa...
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Ohio Citizen Action @ohiocitizen.org · 19/11/2025
BREAKING: FirstEnergy hit with $250 MILLION in fines for bribing politicians in the HB6 scandal. $180M goes back to customers starting in December. We're finally getting money back from the HB6 scandal! ⚡ ⚡ ⚡ bit.ly/47Qi8FV
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Ari Peskoe @aripeskoe.bsky.social · 13/11/2025
I filed an amicus brief at the Supreme Court on behalf of 11 former FERC Commissioners. The brief seeks to preserve Congress's authority to maintain bipartisan ratemaking commissions and prevent direct Presidential control of ratemaking. www.supremecourt.gov/DocketPDF/25... Summary below:
supremecourt.gov
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Charles Gaba ✡️ @charlesgaba.com · 05/11/2025
WHOA. Via @decisiondeskhq.bsky.social, it looks like Democrats just flipped BOTH *statewide* Public Service Commissioner seats in Georgia. That seems...significant.
GA PSC 2 Dem Alicia Johnson projected to win by Decision DeskGA PSC 3 Dem Peter Hubbard projected to win by Decision Desk
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Louisville Public Media @lpm.org · 29/10/2025
State regulators are allowing Kentucky’s largest power companies to spend $3 billion on two new gas power plants, which LG&E/KU say are needed for future data centers. www.lpm.org/news/2025-10...
lpm.org
Kentucky regulators grant LG&E/KU permission to build power plants for future data centers
State regulators are allowing Kentucky’s largest power companies to spend $3 billion on two new gas power plants, which LG&E/KU say are needed for future data centers.
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Miriam Posner @miriamposner.com · 28/10/2025
Cheating with an LLM is the easiest thing in the world for a student to do, but it creates a massive, laborious headache for a prof, if you intend to take it seriously. There’s meetings, emails, discussions, moral dilemmas. It’s just incredibly burdensome, on top of everything else right now.
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The Onion @theonion.com · 24/10/2025
What To Know About Data Centers theonion.com/what-to-know-about-dat…
Q: How long does it take to build a new data center?

A: Approximately one closed-door city council vote.
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Ken Sands @kensands.bsky.social · 24/10/2025
NV Energy Files Request to Join EDAM. The addition of NV Energy to EDAM would give the market footprint a strategically located balancing authority. @yes-energy.bsky.social @rtoinsider.bsky.social www.rtoinsider.com/118055-nv-en...
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Eric Muller @elmunc.bsky.social · 24/10/2025
Only legislators can do the job. They're who we empower to structure our criminal justice system. It's simple: “Criminal verdicts shall be reached by human jurors, unassisted by artificial intelligence." The time to decree this is now, before we’re seduced by the lure of the next release. /end
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Ari Peskoe @aripeskoe.bsky.social · 23/10/2025
A lawsuit with Star Wars references! Have they considered -- -Our client has the high ground. -The court should have a bad feeling about the government's actions. -The government's chilling of free expression is no phantom menace. -This is how liberty dies.
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Ari Peskoe @aripeskoe.bsky.social · 23/10/2025
Looks interesting!
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Ari Peskoe @aripeskoe.bsky.social · 22/10/2025
It's mostly because of utilities and their decisions to spend more on poles and wires. The thing about this story is that there's so much data on market prices, T&D spending, etc. And the "reporting" on it basically ignores the data.
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Ari Peskoe @aripeskoe.bsky.social · 20/10/2025
Thread ranking the 17 amicus briefs filed in support of ending independent federal agencies (plus 2 supporting neither side) based on: 1. The brief's fidelity to the Supreme Court's formatting rules and 2. Whether I found the brief's formatting deviations to be aesthetically pleasing --
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