Halcyon, which uses AI to aggregate documents from public utility commissions, energy regulators, and more, raised a $21M Series A led by Energize Capital (Katie Fehrenbacher/Axios)
https://www.axios.com/pro/climate-deals/2026/03/16/halcyon-funding-21-million
Power Brokers: What’s really behind your soaring utility bills, by Nick Bowlin
https://harpers.org/archive/2026/01/power-brokers-nick-bowlin-utility-bills/
Easy-to-install solar panels that plug into a regular outlet are getting attention just as Americans are worried about rising energy costs.
These plug-in or balcony solar panels start shaving off part of a homeowner's or renter's utility bill right away.
⭐️The panels are already popular in Germany, where more than 1.2 million of the small plug-in systems are registered with the German government.
For the panels to become more widely available in the U.S., state lawmak…
I made a utility to bulk-upload calendar entries to a #CalDAV server from a JSON file:
https://pypi.org/project/caldav-event-pusher/
So if intelligence will be like a utility will they have to lay intelligence pipes to your home?
What if the drain clogs?
Do I have to get the discarded intelligence septic pumped from time to time?
So many questions
In and of itself these bills are a good thing, but it seems bad that that we're essentially letting landlords off the hook and expecting tenants to make this investment in solar power. It should be treated like other appliances, such as ovens and refrigerators, that we expect landlords to provide. Furthermore, it's not apparent that this legislation forces landlords (or HOAs for that matter) to allow for these systems to be installed.
TIL about ncdu, a command line utility for checking disk usage that allows browsing folders: https://en.wikipedia.org/wiki/Ncdu This is great for me, as I always had to look up du parameters again and again when checking disk usage. HT @…
For what it’s worth, we have a system in MN that’s not too far from this: if you’re not already registered to vote, you can show up on election day with one from a limited set of approved gov-issued photo IDs, •or• proof of residence such as a utility bill plus a registered neighbor who will legally vouch for you.
The result? We have some of the highest voter turnout rates in the country (often •the• highest), and just •vanishingly• small rates of fraudulent / illegal votes (because the consequences for such votes are just as severe as ever, not changed at all by the ease of same-day registration).
Rare Colours Blues II🔷🔷
稀有的色彩蓝 II🔷🔷
📷 Pentax MX
🎞️ Harman Phoenix 200 II (FF)
#filmphotography #Photography #Art
Why are all these telephone poles hanging sideways in the air along Eight Mile?
The 'pv' #Linux utility is quite nice as you can track any process read process with the -d option. But what if it is not installed?
p=long_run_prog_name; while pgrep $p >/dev/null; do echo $(date -Isec) $(awk -v s=$(stat -c %s infile) '/pos/{printf "%.3f %%\n", 100*$2/s}' $(eval echo /proc/{$(pgrep -d, $p)}/fdinfo/3) ); sleep 30;done
'infile' is …
Wrote my first :rust: #Rust program today. A small utility to grab the last value of a matching column in a matching csv file. I had hacked something together with #qsv, #nushell and
RE: https://mastodon.online/@parismarx/116376393516905285
“We see a future where intelligence is a utility, like electricity or water, and people buy it from us on a meter,” said Altman.
Can I unsubscribe from this future, please?
macOS: Password Utility entsperrt FileVault und macht sudo Biometrie-fähig
Neu startende Remote-Macs, die sich nicht mehr steuern lassen, Passwort-Zwangseingaben statt Touch ID und mehr: Ein neues Tool soll dagegen helfen.
Wow, I sure am glad we have such diversity in the CSS world and that AIs consider all of the options fairly, instead of hypothetically being hyper focused on any specific library.
'We Own It' campaigns against privatisation. They have been asking all MPs in the Thames Water region to sign an open letter to Ofwat and the Environment Secretary, urging them to reject the creditors’ proposal to pollute illegally.
"The name of every single Thames Water MP should be on this open letter. Because it’s so simple. Do they think water companies should be allowed to get away with polluting - illegally - for profit, or do they not?
In light of the recent n…
Series D, Episode 02 - Power
TARRANT: [To Vila] No problem. [Vila nods, they turn and start to walk away.]
ORAC: However, the device has a secondary trip relay. When the door is opened, the charge will detonate automatically.
https://blake.torpidity.net/m/402/282 B7B5
Solar was poised to help Puerto Ricans survive blackou
ts — until Trump axed nearly $1B in funding
The money is being redirected to the Puerto Rico Electric Power Authority,
a government-owned utility with a checkered past.
https://grist.org/energy/puerto-rico-s
I'm so glad I have a Linux box on my desk to MOUNT USB DRIVES because #MacOS just decides to forget how to do it (and hangs Disk Utility). The device is there! It works! It shows up in USB Prober! A reboot fixes it! WHY? Apple, you used to do USB MSC so well, what happened? It's so tiring.
Someone showed up to mark my utility lines so that the city can grind a tree stump and the dogs are not happy with the concept.
UK's Hinkley Point C new nuclear plant delayed to 2030 as costs climb to €56 billion*, i.e. €17,500 per kW.
EDF said the first reactor at the site in Somerset will begin operations in 2030, a year later than in the last update – almost 13 years after construction work began – after a series of delays to the project.
Night Into Day
The thing changing the world this year is...batteries.
BILL MCKIBBEN
"The first commercial utility-scale battery energy storage facilities are now being constructed and commissioned, . “This demonstrates that SIBs are on the verge of full-scale market entry. Once supply chains are established and economies of scale take effect, there is nothing to prevent sodium-ion batteries from fully taking over the market,”
NERC is ‘actively monitoring the grid’ following Iran-linked cyber threat | Utility Dive
https://www.utilitydive.com/news/nerc-cisa-iran-war-cyber-hacking/816914/
Different Corners VIII ▶️
不同的角落 VIII ▶️
📷 Zeiss IKON Super Ikonta 533/16
🎞️ Ilford HP5 400 Plus, expired 1993
#filmphotography #Photography #blackandwhite
Constructing Koszul filtrations: existence and non-existence for G-quadratic algebras
Emily Berghofer, Lisa Nicklasson, Peder Thompson, Thomas Westerb\"ack
https://arxiv.org/abs/2602.06490 https://arxiv.org/pdf/2602.06490 https://arxiv.org/html/2602.06490
arXiv:2602.06490v1 Announce Type: new
Abstract: Given a standard graded algebra over a field, we consider the relationship between G-quadraticity and the existence of a Koszul filtration. We show that having a quadratic Gr\"obner basis implies the existence of a Koszul filtration for toric algebras equipped with the degree reverse lexicographic term order and for algebras defined by binomial edge ideals. We also resolve a conjecture of Ene, Herzog, and Hibi by constructing an example where this implication fails. These results are underpinned by algorithms we develop for constructing Koszul filtrations. We also demonstrate the utility of these algorithms on the pinched Veronese algebra.
toXiv_bot_toot
The Tenor API is being decommissioned in June of this year. If you have some favorite GIFs on Discord you don't want to lose, I made a little userscript script to get a list and download them:
https://github.com/darius-it/discord-gif-exporter
This is also useful if y…
I'm so glad I have a Linux box on my desk to MOUNT USB DRIVES because #MacOS just decides to forget how to do it (and hangs Disk Utility). The device is there! It works! It shows up in USB Prober! A reboot fixes it! WHY? Apple, you used to do USB MSC so well, what happened? It's so tiring.
Today on Nutanix well-being day:
The builders which said they'd be here today still haven't shown up (2 week chaos in kitchen/utility, no laundry facilities as a result) Dishwasher has now decided to pack it in again, leaking over kitchen floor. I spent the morning drilling more holes into the walls because the new blinds we got are shorter than the old ones, and drilling holes in masonry is one of my least-favourite things.
I think I'm calmer when working $DAYJOB.…
Truly amazing stuff
“Lake Tahoe’s longtime power supplier, NV Energy, will cut off the region next year. It has said data centers are driving “unprecedented” demand.”
https://calmatters.org/economy/2026/03/nevada-utility-to-lake-tahoe-find-electricity-elsewhere/
Announcing Categories Helper
A tool I made, inspired by and building of a tool made by @…
This tool is designed to help you sort out categories in a Connections type categories game.
Some people have been using an alpha version of this tool for a week or so - thanks for the feedback.
Now in beta, ready for wider release.
It now supports g…
ProphetKV: User-Query-Driven Selective Recomputation for Efficient KV Cache Reuse in Retrieval-Augmented Generation
Shihao Wang, Jiahao Chen, Yanqi Pan, Hao Huang, Yichen Hao, Xiangyu Zou, Wen Xia, Wentao Zhang, Haitao Wang, Junhong Li, Chongyang Qiu, Pengfei Wang
https://arxiv.org/abs/2602.02579 https://arxiv.org/pdf/2602.02579 https://arxiv.org/html/2602.02579
arXiv:2602.02579v1 Announce Type: new
Abstract: The prefill stage of long-context Retrieval-Augmented Generation (RAG) is severely bottlenecked by computational overhead. To mitigate this, recent methods assemble pre-calculated KV caches of retrieved RAG documents (by a user query) and reprocess selected tokens to recover cross-attention between these pre-calculated KV caches. However, we identify a fundamental "crowding-out effect" in current token selection criteria: globally salient but user-query-irrelevant tokens saturate the limited recomputation budget, displacing the tokens truly essential for answering the user query and degrading inference accuracy.
We propose ProphetKV, a user-query-driven KV Cache reuse method for RAG scenarios. ProphetKV dynamically prioritizes tokens based on their semantic relevance to the user query and employs a dual-stage recomputation pipeline to fuse layer-wise attention metrics into a high-utility set. By ensuring the recomputation budget is dedicated to bridging the informational gap between retrieved context and the user query, ProphetKV achieves high-fidelity attention recovery with minimal overhead. Our extensive evaluation results show that ProphetKV retains 96%-101% of full-prefill accuracy with only a 20% recomputation ratio, while achieving accuracy improvements of 8.8%-24.9% on RULER and 18.6%-50.9% on LongBench over the state-of-the-art approaches (e.g., CacheBlend, EPIC, and KVShare).
toXiv_bot_toot
"A Memphis woman was arrested after she refused AT&T fiber optic installation"
I don't think it's unreasonable to tell a utility crew you don't want a handhole in your yard. Obviously this doesn't scale (they have to put them somewhere) but arresting people over this is silly.
Grand Theft Auto San Andreas: whatchutalkinbout?
On one miserable, rainy evening, with a bit of a cold, and with an hour and a half spare before I had to go and collect Nicholas from Scouts, I wanted to do something substantial; cross something off my "to do" list. I could have put up the hooks in the utility room that have sat there for several months. I could have rearranged the loft to get the Christmas decorations properly put away.
My appointment for #BloodDonation on Sunday was just canceled. There's no explanation given, but it basically has to be because of the snowstorm approaching New York right now.
If it was 2012, I'd be getting activated for storm duty right now. (At the time, I worked for the electric utility in my area.) Now, not so much.
Development and extension of a monochromatic neutron beamline for neutron polarimetry device characterization at the Spallation Neutron Source
Kavish Imam, Vince Cianciolo, Brad Filippone, Nadia Fomin, Geoffrey Greene, Chenyang Jiang, Jordan O'Kronley, Seppo Penttila, Josh Pierce, John Ramsey, Isaiah Wallace
https://arxiv.org/abs/2602.00167 https://arxiv.org/pdf/2602.00167 https://arxiv.org/html/2602.00167
arXiv:2602.00167v1 Announce Type: new
Abstract: The precise manipulation and analysis of neutron spin states are foundational for a wide range of physics experiments, from fundamental symmetry tests to materials science. To enable systematic characterization of neutron polarimetry devices, we have constructed and extended a monochromatic neutron beamline at the Spallation Neutron Source, Oak Ridge National Laboratory. The beamline delivers monochromatic neutrons and provides a flexible platform for deploying and evaluating advanced neutron spin manipulation instruments. We describe the design and commissioning of the extended beamline and present a proof-of-concept neutron polarimetry study using three devices: a supermirror neutron polarizer, a Mezei spin flipper, and an in situ neutron 3He spin analyzer system. Performance metrics, optimization strategies, and systematic effects are discussed, demonstrating the beamline utility for neutron instrumentation testing. These results establish the extended monochromatic beamline as a useful resource for the development and validation of neutron polarimetry technologies.
toXiv_bot_toot
MapToPoster is a beautiful utility to create minimalist posters of the (water)ways of a city.
If you have uv installed, it takes a moment to get going
#python
America's power grid is going through a massive shift. Solar and wind will jump to 21% of electricity generation by 2027, while fossil fuels drop to 72%.
Utility-scale solar is leading the charge, especially in Texas, paired with expanding battery storage to smooth out fluctuations. Coal's taking the biggest hit—down 5% annually.
Sickly Red IV ⭕️
病态的红 IV ⭕️
📷 Pentax MX
🎞️ CineStill 800T
If you like my work, buy me a coffee from PayPal #filmphotography …
Go-live of a commercial vehicle fleet #V2G project in Germany: in Hanover, the city where the ID. Buzz is built, Enercity, the local utility, is optimising the bidirectional charging of its 75-strong Buzz fleet using energy arbitrage and ancillary services.
On Electric Vehicle Energy Demand Forecasting and the Effect of Federated Learning
Andreas Tritsarolis, Gil Sampaio, Nikos Pelekis, Yannis Theodoridis
https://arxiv.org/abs/2602.20782 https://arxiv.org/pdf/2602.20782 https://arxiv.org/html/2602.20782
arXiv:2602.20782v1 Announce Type: new
Abstract: The wide spread of new energy resources, smart devices, and demand side management strategies has motivated several analytics operations, from infrastructure load modeling to user behavior profiling. Energy Demand Forecasting (EDF) of Electric Vehicle Supply Equipments (EVSEs) is one of the most critical operations for ensuring efficient energy management and sustainability, since it enables utility providers to anticipate energy/power demand, optimize resource allocation, and implement proactive measures to improve grid reliability. However, accurate EDF is a challenging problem due to external factors, such as the varying user routines, weather conditions, driving behaviors, unknown state of charge, etc. Furthermore, as concerns and restrictions about privacy and sustainability have grown, training data has become increasingly fragmented, resulting in distributed datasets scattered across different data silos and/or edge devices, calling for federated learning solutions. In this paper, we investigate different well-established time series forecasting methodologies to address the EDF problem, from statistical methods (the ARIMA family) to traditional machine learning models (such as XGBoost) and deep neural networks (GRU and LSTM). We provide an overview of these methods through a performance comparison over four real-world EVSE datasets, evaluated under both centralized and federated learning paradigms, focusing on the trade-offs between forecasting fidelity, privacy preservation, and energy overheads. Our experimental results demonstrate, on the one hand, the superiority of gradient boosted trees (XGBoost) over statistical and NN-based models in both prediction accuracy and energy efficiency and, on the other hand, an insight that Federated Learning-enabled models balance these factors, offering a promising direction for decentralized energy demand forecasting.
toXiv_bot_toot
Different Corners III ▶️
不同的角落 III ▶️
📷 Nikon F4E
🎞️ Fujifilm NEOPAN SS, expired 1993
#filmphotography #Photography #blackandwhite
Time consistent portfolio strategies for a general utility function
Oumar Mbodji
https://arxiv.org/abs/2602.18157 https://arxiv.org/pdf/2602.18157
Google signs deals with five US electric utilities for 1GW of "demand response" in total, to reduce data center power consumption during peak grid demand hours (Laila Kearney/Reuters)
https://www.reuters.com/sus…
Different Corners V ▶️
不同的角落 V ▶️
📷 Nikon F4E
🎞️ Fujifilm NEOPAN SS, expired 1993
#filmphotography #Photography #blackandwhite
London-based Fyld, which makes AI tools to assist infrastructure and utility fieldwork operators, raised a $41M Series B led by Energy Impact Partners (Kyt Dotson/SiliconANGLE)
https://siliconangle.com/2026/02/17/ai-field…
Jackery is making solar power actually beautiful. At CES, they unveiled solar roof tiles, a home battery system, and even a Solar Gazebo with 2 kW of panels that generates 10 kWh daily.
The gazebo runs $12-15K and pairs with battery storage for backup power. It's not utility-scale, but it's the kind of creative design that could make clean energy irresistible to everyday consumers.
Some City Some Nature IV 🏙️
一些城一些自然 IV🏙️
📷 Zeiss IKON Super Ikonta 533/16
🎞️ Lucky SHD 400 (6x6)
#filmphotography #Photography #blackandwhite
OpenAI says it will cover the costs of developing energy-related infrastructure at its Stargate data centers to ensure they don't raise consumers' utility bills (Bloomberg)
https://www.bloomberg.com/news/articles/2026-0…
20"-wide keyboard tray when a typical full-size keyboard is a bit over 17" wide and a mouse pad is about 8.5" wide. ⌨️🖱️🤦♂️
#design #utility #ergonomics #accessories #technology #business
Some City Some Nature VII 🏙️
一些城一些自然 VII 🏙️
📷 Nikon F4E
🎞️ Fujifilm NEOPAN SS, expired 1993
#filmphotography #Photography #blackandwhite
Crosslisted article(s) found for q-fin.PM. https://arxiv.org/list/q-fin.PM/new
[1/1]:
- Merton's Problem with Recursive Perturbed Utility
Min Dai, Yuchao Dong, Yanwei Jia, Xun Yu Zhou
Some City Some Nature III 🏙️
一些城一些自然 III 🏙️
📷 Nikon F4E
🎞️ ERA 100, expired 1993
#filmphotography #Photography #blackandwhite
Some City Some Nature II 🏙️
一些城一些自然 II 🏙️
📷 Nikon F4E
🎞️ ERA 100, expired 1993
#filmphotography #Photography #blackandwhite
Mundane Things VII 🌀
普通物件 VII 🌀
📷 Nikon FE
🎞️ Ilford FP4 Plus 125, expired 1993
If you like my work, buy me a coffee from PayPal #filmphotography
Gloom & Bloom V ☁️🌺
黑暗绽放 V ☁️ 🌺
📷 Nikon F4E
🎞️ Ilford HP5 400 Plus, expired 1993
#filmphotography #Photography #blackandwhite
Urban Demons 👻
城市鬼魂 👻
📷 Nikon F4E
🎞️ Rollei RPX 400
#filmphotography #Photography #blackandwhite