@EarthOrgUK@mastodon.energy2026-02-15 03:23:05
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@EarthOrgUK@mastodon.energy2026-02-15 03:23:05
@EarthOrgUK@mastodon.energy2026-01-15 09:51:03
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@EarthOrgUK@mastodon.energy2026-01-15 19:51:03
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@Sustainable2050@mastodon.energy2026-02-04 20:21:27
By 2027, 2.5 million French civil servants will stop using video conference tools from U.S. providers — including Zoom, Microsoft Teams, Webex and GoTo Meeting — and switch to Visio, a homegrown service.
https://apnews.com/article/europe-digital…
@UP8@mastodon.social2026-01-31 02:01:26
💩 Understanding ammonia energy's tradeoffs around the world
#energy
@thomasfuchs@hachyderm.io2026-03-09 00:17:21
Yes, you need oil for a lot of stuff, for example plastics and certain kinds of transportation (because of better energy density when compared to batteries).
But also there’s absolutely no reason why we shouldn’t free ourselves from it for a lot of stuff.
And use the money we save to do research to get rid of even more uses of oil. ¯\_(ツ)_/¯
@EarthOrgUK@mastodon.energy2026-03-09 03:23:03
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@chrisnelder@mastodon.energy2026-03-25 16:40:44
RE: https://mastodon.energy/@TransitionShow/116290798322955589
Want to understand how much damage has been done to the global oil & gas system and how it will affect you? Then check out our deep dive in this FREE episode!
@EarthOrgUK@mastodon.energy2026-03-09 19:51:03
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@burger_jaap@mastodon.social2026-03-31 18:27:09
The Dutch energy supplier NextEnergy is offering its customers a free 2 kWh plug-in battery.
The (4-year) monthly lease is €20.83, with guaranteed yearly savings of €250.
https://www.nextenergy.nl/smart-home/plug-in-batterij-kopen
@Dragofix@veganism.social2026-01-19 20:42:42
No Blood for Oil: Demand a Fossil-Free Future! #environment
@metacurity@infosec.exchange2026-02-28 13:07:33
Each Saturday, Metacurity is pleased to offer our free and paid subscribers a digest of the best infosec-related long reads we couldn't cover in the crazy mix of daily news.
This week's selection covers,
--Tracking down the culprits in the Polish energy cyberattack,
--How China uses geo-blocking as reverse censorship,
--How Russia maneuvered spy satellites alongside Western satellites,
--Secure provenance methods can maintain effective cybersecurity,
@davej@dice.camp2026-03-08 00:20:03
@newstik@social.heise.de2026-02-03 18:26:16
@EarthOrgUK@mastodon.energy2026-03-07 03:23:04
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@primonatura@mstdn.social2026-02-17 20:00:11
"Geothermal could replace almost half of the EU’s fossil fuel power"
#EU #EuropeanUnion #Energy
@EarthOrgUK@mastodon.energy2026-02-07 19:51:04
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@stsquad@mastodon.org.uk2026-02-22 17:57:18
It will probably be a month or so before the house reaches the true neutral energy cost. However I had the first free tank of hot water today. About 4kWh of excess #solargeneration went into the hot water and almost 6kWh to the grid.
#graphs
@EarthOrgUK@mastodon.energy2026-04-03 09:51:05
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@fennek@cyberplace.social2026-04-03 10:27:13
What in the hell am I looking at 🧐
https://toot.community/@internetarchiveeurope/116340086494523511
@EarthOrgUK@mastodon.energy2026-03-01 03:23:05
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@karlauerbach@sfba.social2026-03-22 20:18:11
I had not heard that the US military is cooperating with the small-reactor companies (run by people like Thiel and Andreeson - gee where have we heard those names before?) to transport the prototypes of these small nuclear reactors by air.
Indeed one such flight has occurred (carrying the large pieces of the reactor on a C17.)
Now, I am a supporter of new reactor technology as a way to provide CO2 free baseline power sources until such time as we can go full solar/wind/tidal etc…
@whophd@ioc.exchange2026-02-23 22:07:26
@primonatura@mstdn.social2026-02-24 16:00:34
"World’s largest steam-producing heat pump comes online in Finland"
#Finland #HeatPumps #Energy
@EarthOrgUK@mastodon.energy2026-02-21 09:51:03
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@arXiv_physicsaccph_bot@mastoxiv.page2026-02-17 08:46:33
Demonstration of High-Gain Harmonic Lasing in a Terahertz Free-Electron Laser
Yin Kang, Cheng Yu, Yue Wang, Weiyi Yin, Zhangfeng Gao, Hanghua Xu, Hang Luo, Jian Chen, Taihe Lan, Xiaoqing Liu, Jinguo Wang, Huan Zhao, Fei Gao, Liping Sun, YanYan Zhu, Yongmei Wen, Chengcheng Xiao, Yongfang Liu, Yixuan Liu, Xingtao Wang, Jiaqiang Xu, Zheng Qi, Tao Liu, Bin Li, Kaiqing Zhang, Zhen Wang, Chao Feng, Bo Liu, Zhentang Zhao
https://arxiv.org/abs/2602.13743 https://arxiv.org/pdf/2602.13743 https://arxiv.org/html/2602.13743
arXiv:2602.13743v1 Announce Type: new
Abstract: Compact Free-Electron Lasers (FELs) offering broad, continuous spectral tunability are traditionally constrained by fixed-parameter magnetic structures and the necessity for high-energy electron beams. High-gain Harmonic Lasing (HL) has long been proposed as a solution to overcome these limitations; however, a robust experimental verification of this principle has remained absent. Here, we report the first experimental demonstration of high-gain HL. By employing a frequency-tunable electron beam density modulation to dominate the fundamental instability, we achieved sustained FEL amplification at the 3rd and 5th harmonics of the wiggler. The HL mode generated output power comparable to conventional fundamental operation with enhanced stability and narrower spectral bandwidth. Notably, we demonstrate that HL extends the spectral coverage by a factor of two under fixed facility constraints, achieving pulse energies up to 540 {\mu}J. These results establish high-gain HL as a versatile mechanism for advancing compact, wavelength-flexible FEL facilities.
toXiv_bot_toot
@arXiv_mathDG_bot@mastoxiv.page2026-02-27 11:27:28
Crosslisted article(s) found for math.DG. https://arxiv.org/list/math.DG/new
[1/1]:
- Uniformly elliptic boundary value problems
Matti Lyko
https://arxiv.org/abs/2602.22748 https://mastoxiv.page/@arXiv_mathKT_bot/116141657345878486
- Generalization of lattice Dirac operator index
Aoki, Fujita, Fukaya, Furuta, Matsuo, Onogi, Yamaguchi
https://arxiv.org/abs/2602.22858 https://mastoxiv.page/@arXiv_heplat_bot/116141725507327217
- Coupling between Phase Separation and Geometry on a Closed Elastic Curve: Free Energy Minimizatio...
Hanchun Wang, Ronojoy Adhikari, Michael E. Cates
https://arxiv.org/abs/2602.22977 https://mastoxiv.page/@arXiv_condmatsoft_bot/116141667150815220
- Properties of hypersurface singular sets of solutions to the $\sigma_k$-Yamabe equation in the ne...
Jonah A. J. Duncan, Luc Nguyen
https://arxiv.org/abs/2602.23190 https://mastoxiv.page/@arXiv_mathAP_bot/116141941100166351
toXiv_bot_toot
@tiotasram@kolektiva.social2026-04-07 11:23:25
In the interests of starting a more productive dialogue than yesterday's main character was interested in, let's make a #brainstorm thread about design changes to ActivityPub and/or client UI that could actually help address drive-by (often racist) harassment on the fediverse.
Feel free to discuss pros/cons but don't feel an idea needs to be perfect to suggest it. Also since this is a brainstorm don't worry about complexity/implementation cost. If you have a great-but-hard-to-implement idea someone else may think of a way to simplify it.
Note that the underlying problem *is* a social one, do there won't be a technological fix! But tech changes can make social remedies easier/harder.
I've got some to start:
1. Have a "protected mode" that users can voluntarily turn on. Some servers might turn it on by default. In protected mode, users whose accounts are less than D days old and/or who have fewer than F followers can't reply to or DM you. F and D could have different values for same-sever vs. different-server accounts, and could be customized by each user. Obviously a dedicated harasser can get around this, but it ups the activation energy for block evasion and pile-ons a bit. Would be interesting to review moderation records to estimate how helpful this might or might not be. Could also have a setting to require "follows-from-my-server" although that might be too limiting on private servers. Restriction would be turned off for people you mention within that thread and could be set to unlimit anyone you've ever mentioned. Would this lock new users out of engagement entirely? If everyone had it on via a default, you'd have you post your own stuff until someone followed you (assuming F=1). One could add "R non-moderated replies" and/or "F favorites" options to soften things; those experiencing more harassment could set higher limits. When muting/blocking/reporting someone who replied to your post, protected mode could be suggested with settings that would have filtered the post you're reporting.
2. Enable some form of public moderation info to be displayed when both moderator and local server opt-in. Obviously each server would be able to ignore federated public tags. I'm imagining "banned from X server for R reason (optional link to evidence)" appearing on someone's profile & an icon on their PFP in each post viewed by someone on server Y *if* the mods of server X decide it's appropriate *and* server Y opts in to displaying such tags from server X specifically. Alliances of servers with similar moderation preferences could then have moderation action on one server result in clear warning propagation to others without the other mods needing to decide whether to also take action immediately. In some cases different moderation preferences would mean you wouldn't take action yourself but would keep the notice up for your users to consider. Obviously the "Scarlet Letter" vibe ain't great, but in some cases it's deserved, and when there's disagreement between servers about that, mods on server Y could either disable a specific tag or disable federation of mod tags from that server in general. Even better shared moderation tools are of course possible.
3. Different people/groups have different norms around boosting. Currently we only have a locked/public binary. Without any big protocol changes, adding a "prefers boosts/doesn't" setting which would warn in the UI before a viewer chooses to boost if the preference is "doesn't" could help. This could be set per-post, but could also have defaults and could have different values for same-server or not, or for particular servers. For example, I could say "default to prefer boosts from users on my server but not from users on other servers" or "default to prefer boosting on all servers except mastodon.social." Last option might be harder to implement I guess.
#ActivityPub #Meta #Harassment
@EarthOrgUK@mastodon.energy2026-02-19 03:23:04
Octopus Heat-pump Journey - Via quote and survey and negotiation to keeping us warm fossil-free #heatPump #DHW #spaceHeat
@arXiv_physicschemph_bot@mastoxiv.page2026-03-27 08:38:22
Complementary Eigen-Zundel Interpretation Reconciles Thermodynamics and Spectroscopy of Excess Protons in Aqueous HF Solutions
Louis Lehmann, Florian N. Br\"unig, Jonathan Scherlitzki, Morten Lehmann, Martin Kaupp, Beate Paulus, Roland R. Netz
https://arxiv.org/abs/2603.25371 https://arxiv.org/pdf/2603.25371 https://arxiv.org/html/2603.25371
arXiv:2603.25371v1 Announce Type: new
Abstract: Aqueous solutions of HF and HCl behave very differently at intermediate concentrations: HCl dissociates completely, whereas HF remains only partially dissociated and forms bifluoride (HF$_2^-$). This should lead to different excess-proton spectra in HF and HCl solutions, in contrast to experimental reports. Using ab initio molecular dynamics, we show that in HF the proton is not firmly bound to F$^-$, as suggested by textbook chemistry, but dynamically shared with a hydrating water molecule. This is rationalized by a modified Eigen-state description which also explains the formation of HF$_2^-$. The similar vibrational spectra of HF and HCl solutions are explained by a complementary Zundel picture in terms of almost identical excess proton transfer free-energy profiles for HF and HCl. These results reconcile thermodynamic and spectroscopic observations and provide a unified microscopic picture of excess protons in aqueous solution.
toXiv_bot_toot
@chris@mstdn.chrisalemany.ca2026-02-04 20:25:00
of course... it's actually much worse than just policy dredged up from the days of Paul Martin and Stephen Harper… it's a gigantic step backward at the behest of fossil fuel interests in order to keep people burning fossil fuels.
EV mandates should be 'sold’ as an affordability measure! Because they are!
No, I don't mean grants, I mean everyday use. Real impacts on your pocket book. How much money would you save if you *never* went to a gas station. Just think about that for second.
Then we can do the math.
My 2019 Hyundai Kona Electric just passed 251152km (palindrome!) yesterday and gets around 6km/kWh on average.
I pay about $0.13/kWh at home to charge so that's $0.02/km. That is $5,023.04 in total energy expenses so far.
Our 2012 Toyota Prius C is at 270,000km and gets about 5.5L/100km or 0.055L/km. At (a discounted) $1.25/L that’s $0.04/km or $10,800 in total energy expenses so far.
Per kilometre the EV is half the cost to 'fuel' than one of the most fuel efficient gas cars out there.
In general, why would *anyone* choose something that costs double to run!?
And yet, the government doesn't sell this as ‘affordability’ it sells it as 'environmental responsibility'.
Let's be honest, they do that because they *know* the environmental message is *less* motivating than money.
Now I said at the beginning, "imagine" never going to the gas station. Obviously that doesn't mean you're fueling for free... but there is another overlooked aspect to this.
Fueling your car is a day to day thing. It's one of the biggest pulls on people's bank accounts precisely because it is such a frequent cost.
Now imagine if that 'bill' was just rolled into your home electricity bill. Which you could do other things to reduce cost overall?
EVs are not just an environmental game changer, they are a financial one for the average person.
That is why oil companies are throwing absolutely everything they have at government (and also fomenting fascism) to keep their good times going, at our expense.
#CanPoli #CdnPoli #EV #ClimateChange #ClimateAction #Driving #Affordability
@chris@mstdn.chrisalemany.ca2026-02-02 22:09:18
really good video from @… Energi Media that picks apart how the "Free Alberta Strategy", which is Danielle Smith's playbook, is trying to break up Canada based on the false notion that Ottawa is not being "fair" to Alberta... when it was the Alberta oilsands companies themselves that lobbied for the Industrial Carbon Tax.
#CanPoli #CdnPoli #AbPoli #Energy #Oil #Canada #Sovereignty
https://www.youtube.com/watch?v=4H1NlAM26xM