Sign in

Alex Turnbull

@alexbhturnbull.bsky.social
9.9K followers 3.3K following 361 posts

Opticore CFO / Energy things with ANU syncretica.substack.com scholar.google.com/citations?user=1…

PostsRepliesMedia
Reposted by Alex Turnbull
Felix Hamer • electricfelix @electricfelix.eurosky.social · 03/10/2026
“FedEx believes $300M electric truck spend will save them $800M in diesel” #alwaysbecharging ⚡️⚡️⚡️ electrek.co/2026/10/03/f...
electrek.co
FedEx believes $300M electric truck spend will save them $800M in diesel
In a record-setting commercial truck deal, international shipping giant FedEx has placed an order for 2,000 all-electric box trucks from...
36219
Alex Turnbull @alexbhturnbull.bsky.social · 02/10/2026
Absolutely not shocked @sierraclub.org trying to wreck permitting reform bill. The. worst.
2140
Alex Turnbull @alexbhturnbull.bsky.social · 26/09/2026
Back - twitter seems to have figured out I am male, white and straight and my feed is now completely insane stuff. This must be election related.
5310
Reposted by Alex Turnbull
Ketan Joshi @ketanjoshi.co · 16/09/2026
Just going to keep saying this - the fossil fuel crisis stopped being segmented and is now persistent and probably perpetual. The only way to protect yourself from this is to lobby your politicians to end reliance on this war-torn, unreliable, expensive fuel and switch to modern technology instead.
theguardian.com
Saudi Arabia shuts down key oil pipeline, blaming drones from Iraq
Riyadh has increased use of East-West pipeline since start of war on Iran to bypass closure of strait of Hormuz
418268
Alex Turnbull @alexbhturnbull.bsky.social · 31/08/2026
The electric combi with solar powered roof that charges itself while I surf is very close now www.pv-magazine.com/2026/08/19/c... #EnergySky
pv-magazine.com
Chinese automotive glass giant announces vehicle-integrated solar roof - pv magazine Global
Fuyao Glass has confirmed mass-production capabilities for solar sunroof glass, with photovoltaic cells embedded in laminated automotive glass to power auxiliary vehicle loads. While reports have link...
1274
Alex Turnbull @alexbhturnbull.bsky.social · 30/08/2026
The voters yearn for not a centre left Joe Rogan, but a centre left Billy Butcher
3353
Alex Turnbull @alexbhturnbull.bsky.social · 30/08/2026
TFW you close the series A and feel no further need to have a presence at the bad place.
3270
Reposted by Alex Turnbull
Bill Kristol @billkristolbulwark.bsky.social · 29/08/2026
In the midst of an awful lot of ever-so-sophisticated equivocating and oh-so-thoughtful-chin-stroking and too-clever-by-half-over-thinking, I just want to say, simply and unequivocally and for the record: The Resistance Libs Were Right.
2154888818
Reposted by Alex Turnbull
Felix Hamer • electricfelix @electricfelix.eurosky.social · 28/08/2026
@alexbhturnbull.bsky.social: "The copper bear case is always human invention - amazing jumps in power density (kW/L) which maps very closely to reduced copper content. In this case, about a 75% cut in copper per kW of charger." x.com/alexbhturnbu...
1165
Reposted by Alex Turnbull
Jorrit Gosens @jorritgosens.bsky.social · 06/08/2026
These maritime chokepoints do create geographical separation of regional markets, with costs and revenues rising or falling for different importers and exporters in different regions.
023
Reposted by Alex Turnbull
Jorrit Gosens @jorritgosens.bsky.social · 06/08/2026
The overall effects on prices are remarkably small, less than 0.5 $/t in most scenarios. In case of a disruption to traffic in the South and East China seas, China could become reliant on domestic and rail-borne imports from Mongolia and Russia at an increase in costs of about 10 $/t.
122
Reposted by Alex Turnbull
Jorrit Gosens @jorritgosens.bsky.social · 06/08/2026
Our analysis shows global coal markets are resilient to such maritime chokepoints. Trade flows are readily re-directed. In case of restrictions to the Panama Canal, Colombian exports of thermal coal originally bound for Japan are redirected to Europe, whilst Japan increases supplies from Indonesia
121
Reposted by Alex Turnbull
Jorrit Gosens @jorritgosens.bsky.social · 06/08/2026
There are more relevant chokepoints. The Panama Canal has seen restrictions due drought, the Suez Canal was blocked, there's militant groups in the Bab al-Mandab Strait, and the Black Sea is an active warzone. The Malacca Strait, the Taiwan Strait, and the South China Sea may be future chokepoints
121
Reposted by Alex Turnbull
Jorrit Gosens @jorritgosens.bsky.social · 06/08/2026
The Hormuz Strait crisis and its effect on energy prices has been making headlines for months now. We’ve analysed what maritime chokepoints could do to global trade in coal. Pre-print here: arxiv.org/pdf/2608.00328 With @alexbhturnbull.bsky.social & @frankjotzo.bsky.social .
132
Alex Turnbull @alexbhturnbull.bsky.social · 05/08/2026
So how long will it take the DC blob complex to accept: - US lost with Iran - Iran still sucks - The only way to pay them less is to use less oil and LNG from them AND - Build diversion pipelines etc ?? This is hard because green left hates all pipelines, and blob takes a lot of oil money.
2193
Reposted by Alex Turnbull
Jenny Chase @solarchase.bsky.social · 02/07/2026
Seems worth bookmarking if you want to know about vehicle registration data by type (and who doesn't?)
0242
Reposted by Alex Turnbull
Dr. Jonathan Foley @globalecoguy.bsky.social · 25/06/2026
I especially love this diagram.
5248552011
Reposted by Alex Turnbull
Mike Zaccardi, CFA, CMT @mikezaccardi.bsky.social · 21/06/2026
Closed Strait of Hormuz? Doesn't seem like it.
6329
Reposted by Alex Turnbull
Dave Osmond @davidosmond.bsky.social · 02/06/2026
A milestone achieved on Australia's main electricity grid, the NEM. Energy discharged from utility batteries over the last 12 months now exceeds generation from peaking (OCGT) gas turbines. Those who thought batteries would only provide ancillary services now looking foolish.
210642
Alex Turnbull @alexbhturnbull.bsky.social · 31/05/2026
I am sort of surprised passive atmospheric window cooling tech has not come up at all in data center world - what gives? This is what I am talking about: en.wikipedia.org/wiki/Passive... #EnergySky
en.wikipedia.org
Passive daytime radiative cooling - Wikipedia
2170
Reposted by Alex Turnbull
Possum @pollytics.bsky.social · 30/05/2026
Tony Abbott has always been a man dedicated to the scoreboard. Lost his Prime Ministership, then lost his seat, now apparently wants to lose the entire Liberal Party. Have to admire the |absolute value| of the dedication, regardless of its direction
410519
Reposted by Alex Turnbull
The Quarterly Journal of Economics @qjeharvard.bsky.social · 29/05/2026
Recently accepted by #QJE: “Why Doesn't the United States Have National Health Insurance? The Political Role of the American Medical Association,” by Alsan (@marcellaalsan) and Neberai (@yneberai.bsky.social): doi.org/10.1093/qje/...
doi.org
Why Doesn’t the United States Have National Health Insurance? The Political Role of the American Medical Association*
Abstract. This study examines how the American Medical Association (AMA) helped shape the development of the U.S. health insurance system in the critical p
1177
Alex Turnbull @alexbhturnbull.bsky.social · 30/05/2026
Only thing that could make Talarico more relatable is if a fantasy football group chat leaks where he is around a few people with a cancellable sense of humour / reddit memesband is not a douche about it.
1120
Reposted by Alex Turnbull
esouthard @esouthard.bsky.social · 30/05/2026
(TALARICO, talking through a mouth entirely full of brisket): sorry babe it’s for work
0344
Alex Turnbull @alexbhturnbull.bsky.social · 30/05/2026
Talarico being a multi generational Texan white guy dating a hot Latina who is vegan and has a lot of loud gay friends is one of the most normie straight relatable things I have ever seen. Does not hurt he is running against the Saul Goodman for pedophiles.
3441
Alex Turnbull @alexbhturnbull.bsky.social · 30/05/2026
It will be simultaneously not normal, cringe and incredible content.🍿
030
Reposted by Alex Turnbull
powermecheng.bsky.social @powermecheng.bsky.social · 29/05/2026
You’d like Ambrose Evans-Pritchard’s take then, this was a cracker www.telegraph.co.uk/business/202...
telegraph.co.uk
You are seeing this page because our security systems have detected some unusual activity on this connection. To regain access to The Telegraph website please try the following:
011
Reposted by Alex Turnbull
Jake Lahut @jakelahut.bsky.social · 29/05/2026
Already?! C’mon, the party barely got started
04310
Reposted by Alex Turnbull
zatapatique @zatapatique.bsky.social · 28/05/2026
quiz: Bond villain or character who appears at the 43' mark in Lost Highway in a single scene that will make you have nightmares for the next three decades
181
Reposted by Alex Turnbull
Jaap Burger @jaapburger.eu · 26/05/2026
Herbert Diess, the former CEO of Volkswagen, who may have been unsuccessful in the short term in his attempt to electrify the staunchly traditional German automotive industry, is now setting his sights on electrifying farms and municipal services www.linkedin.com/posts/herber...
linkedin.com
2027 bringen wir einen revolutionären neuen Mittelklasse E-Traktor für Landwirte und Kommunale Dienste auf den Markt. Ein Wechsel Akkusystem erlaubt 24/7 Betrieb. 2 Fahrtrichtungen und… | Herbert Die...
2027 bringen wir einen revolutionären neuen Mittelklasse E-Traktor für Landwirte und Kommunale Dienste auf den Markt. Ein Wechsel Akkusystem erlaubt 24/7 Betrieb. 2 Fahrtrichtungen und Anbaumöglichke...
14712
Alex Turnbull @alexbhturnbull.bsky.social · 27/05/2026
To see Blair as anything other than a filter for what the Gulf and Ellison wants is a mistake.
2213
Reposted by Alex Turnbull
Katie Mack @astrokatie.com · 24/05/2026
In chemistry, a supersaturated solution is one where you've kept adding a solute to a liquid beyond where the liquid can dissolve everything. All it takes is a nucleation site / seed crystal for the solution to rapidly (sometimes violently) crystalize. Unrelatedly, the US has more guns than people.
893879744
Alex Turnbull @alexbhturnbull.bsky.social · 23/05/2026
EA thought goes wrong without a well calibrated reward discount rate which is a lot like reinforcement learning or economics. Its weirdly non-revolutionary and basic utilitarianism which somehow captured some otherwise very smart people with basic ideas.
5342
Reposted by Alex Turnbull
Greg Sargent @gregsargent.bsky.social · 23/05/2026
ICYMI, new piece/thread from me:
619456
Reposted by Alex Turnbull
Rob Cyran @robcyran.bsky.social · 23/05/2026
It’s so ofd. My brother had a lot of patients that were unable to get hip or knee transplants because their obesity made surgery too dangerous. Now they qualify after taking GLP-1s, get transplants, and can walk again. And people are mad about that? WTF?
3997
Reposted by Alex Turnbull
derek guy @dieworkwear.bsky.social · 23/05/2026
On October 24, 2024, Beff Jezos on Twitter wrote: "All the really smart moderates I know in tech are secretly rooting for Trump to win behind closed doors.

Gap between stated and revealed preference in this election will be huge."On May 22, 2026, Beff Jezos wrote: "and contributing to foundational AI + computing technologies for the United States for the past ~ 10 years.

Feels like robbing top and technologists like me of the opportunity to achieve the American Dream."

They are replying to a new Dept. of Homeland Security rule that says legal immigrants have to return to their home country to apply for a green card.
283101411271
Reposted by Alex Turnbull
Albert Pinto @70sbachchan.bsky.social · 22/05/2026
now that is an incredible quote "The U.S. has depleted much of its inventory of advanced missile-defense interceptors after expending far more high-end munitions defending Israel than Israeli forces used themselves"
8293114
Reposted by Alex Turnbull
Just Kevin @kevinleecaster.bsky.social · 22/05/2026
Reducing the energy needs for LLMs should be a much more important priority than it seems to be imho.
152
Alex Turnbull @alexbhturnbull.bsky.social · 22/05/2026
A few years ago I did the LLM inference math on how much power we would use and I did not like what I saw. Scaling LLM based AI would use a lot of power, create a lot of emissions and it seemed wholly unclear how that would work with the climate. #EnergySky www.youtube.com/watch?v=Qph-...
youtube.com
How We Built AI Inference Chips That Use 100x Less Energy
YouTube video by Opticore
47111
Reposted by Alex Turnbull
Adam Kinzinger @adamkinzinger.substack.com · 20/05/2026
Massie, and Cassidy, will now enter the land of freedom to do what you want. It’s a wonderful land of milk and honey. And telling Trump to eat balls is the best part of it
1593937625
Reposted by Alex Turnbull
Robert Merkel @rgmerk.bsky.social · 18/05/2026
@alexbhturnbull.bsky.social has the receipts: batteries *are reducing power prices* in Australia in absolute terms, in a world where the Middle East is making gas more expensive. open.substack.com/pub/syncreti...
open.substack.com
Read 'Em and Weep: Australian Power Edition
batteries and renewables make prices go down in practice and theory
075
Reposted by Alex Turnbull
Margaret Morgan 🇪🇺🇳🇱🇦🇺 @margaretmorgan.bsky.social · 16/05/2026
Given he's now got Senior Statesman™ status, I can see the desperate Libs seeing this as a masterstroke and carrying him in on a sedan chair with rose petals strewn in his path. (And after all, now Orbán's gone, Tones' got a bit of time on his hands.) *sigh*
164816
Reposted by Alex Turnbull
alex williams @atwilliams.bsky.social · 14/05/2026
still can't believe larry summers called this one in like 2023, before trump was even re-elected to do the oil shock. now thats real foresight, like how yield curves predicted the pandemic
35912
Reposted by Alex Turnbull
Matt Schrader @mattschrader.bsky.social · 15/05/2026
Super exciting stuff. Computing with light! Can't wait to see this tech roll out
151
Alex Turnbull @alexbhturnbull.bsky.social · 15/05/2026
#EnergySky #Greensky
1121
Alex Turnbull @alexbhturnbull.bsky.social · 15/05/2026
Datacenters don't get a lot of love here for obvious reasons. Power, water (due to power) are the main reasons. Opticore has figured out how to get around those issues using light to do the linear algebra underlying LLMs. www.youtube.com/watch?v=5PRa...
youtube.com
We Built AI Inference That's Faster and Uses 100x Less Power
YouTube video by Opticore
1146
Reposted by Alex Turnbull
Albert Pinto @70sbachchan.bsky.social · 12/05/2026
At Polycrisis 2023 panel, @alexbhturnbull.bsky.social explained enormous stockpiling of oil that China had done (its size was deliberately kept obscure) and how it was a major swing provider to oil markets - demand then, and supply now... @katemac.bsky.social www.phenomenalworld.org/interviews/o...
1237
Reposted by Alex Turnbull
Nick Timiraos @nicktimiraos.bsky.social · 04/05/2026
Or as former NY Fed president Bill Dudley put it to me, “This is the Trump administration once again not thinking through the consequences of their actions and assuming that their targets don’t have any ability to respond.”
113723