Alan Clarke
@alanclarke.bsky.social
📤 1724
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Energy & buildings engineer, Passivhaus, mountain biker, veg gardener/rewilder
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Alan Clarke
Madi; fighting myself to stay alive 🇵🇸
2 days ago
; BREAKING! 🚨 Farage wants to cancel Christmas and ban Easter! no Christmas lights in Trafalgar square, blessing of the crib ceremony cancelled, carol singing forbidden, Christmas tree can fuck off back to Norway, Good Friday crucifixon re-enactment cancelled. ReFoRm HaS gOnE WoKe!!!
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Alan Clarke
Existential Comics
9 days ago
Possible solution to the Strait of Hormuz?
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Kashana
9 days ago
Can’t believe nobody wanted to read the articles nobody bothered to write
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Alan Clarke
Jan Rosenow
10 days ago
Heat pumps are the most efficient heating technology ever invented. They harvest and compress pre existing heat in the air, ground or water and transport it where it is needed. That energy is all around us. It does not have to pass through the Strait of Hormuz or any other geopolitical chokepoint.
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Alan Clarke
George
17 days ago
move slow and repair things
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Alan Clarke
Irregular reminder that heat pumps work in old buildings - this is our local cinema, built in 1910, not insulated - but now warm thanks to air-air heat pumps
about 1 month ago
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Alan Clarke
Maria cassiopeiaknits
18 days ago
And all I want is
#AbolishThePatriarchy
🫠
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Alan Clarke
Greengauge
18 days ago
🙌52 new Passivhaus/ PHI LEB homes for Somerset! Greengauge was Passivhaus Consultant & M&E Designer on Nailsea social housing development, led by N. Somerset Council & Stonewood Homes. 44 homes certified @ Passivhaus Classic/ Plus 8 homes certified @ PHI LEB
ggbec.co.uk/portfoli...
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Alan Clarke
Juraj Mikurcik
18 days ago
If you liked Guy Martin's House Without Bills, architect Hannah Dixon / Progress in Practice and the builder Josh Day / Mysza Group take a deep dive into this EnerPHit retrofit project From the
@passivhaustrust.bsky.social
Retrofit Case Study Series
www.youtube.com/watch?v=LgY2...
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Passivhaus Retrofit Case Study Series | Stretford EnerPHit Retrofit
YouTube video by Passivhaus Trust
https://www.youtube.com/watch?v=LgY2Je9ZqxE
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Alan Clarke
Simon Evans
9 months ago
Apropos of nothing in particular, just resharing this chart showing why North Sea gas is drying up (we burned it all already)
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Alan Clarke
Jim Waterson
21 days ago
Honestly the collective national level of disdain for Brits living in Dubai on all my social media platforms today really is bringing the UK together as one in a way that's hard to achieve in the modern era.
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Alan Clarke
James Ball
24 days ago
The current argument of the British right is that Muslims turned out in "blocs" with "family voting" to cast their ballots for a party led by a gay Jewish man, and this shows that multiculturalism has failed, voting is "sectarian" and we are in a crisis. Hmmmmmm.
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Alan Clarke
Kate de Selincourt
about 1 month ago
This looks logical enough - till you ralise there's actually a bloody great hole full of mud and water, untraversably bisecting the blue half 🤯 Map *actually* looks like this
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Looking at these ebikes in pic I don't think the police are limited to 15mph here - would it be helpful to call them electric motorbikes? (can see motorebike helmet, I assume they are legally motorbikes)
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London gangs recruit children on Snapchat to steal iPhones for £380
The Metropolitan police is deploying drones and ebikes to help catch adolescent phone thieves
https://www.theguardian.com/uk-news/2026/feb/17/met-police-drones-ebikes-phone-thieves-gangs-recruit-children-london?CMP=Share_iOSApp_Other
about 1 month ago
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Alan Clarke
Lloyd Alter
about 1 month ago
Owners of Ring doorbells are being advised to smash them to splinters after a commercial showed how they could be used to surveil and identify humans with AI. Super Bowl LX may be remembered as the start of a counter-revolution against the technology.
lloydalter.substack.com/p/the-smart-...
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The smart home counter-revolution has begun
It started with a cute lost puppy.
https://lloydalter.substack.com/p/the-smart-home-counter-revolution
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Another AI side-effect - computer chip prices have doubled! Motherboard on my PC just failed. RAM not compatible with new one so bothering to replace with 2nd hand from ebay (to save about £800 - also reflecting only performance upgrade I need is for it to work reliably)
about 1 month ago
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Alan Clarke
Passive House Plus
about 1 month ago
Peaky blinder - Energy specialist Es Tressider transforms '70s Highland home into one of the best
#retrofits
we've ever published, using a high skillset &
#retrofit
innovation to create a comfy, healthy family haven with breathtaking views of Ben Nevis.
mailchi.mp/passivehouse...
#passivehouse
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Alan Clarke
Kate de Selincourt
about 1 month ago
Do please respond to this consultation and push back on the government's sickening proposals to fuck up the security of our colleagues, neighbours carers and friends. Closes tonight.
www.gov.uk/government/c...
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Earned settlement
The government is consulting on how the current settlement system should be reformed and how those reforms should be implemented.
https://www.gov.uk/government/consultations/earned-settlement
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Irregular reminder that heat pumps work in old buildings - this is our local cinema, built in 1910, not insulated - but now warm thanks to air-air heat pumps
about 1 month ago
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Alan Clarke
Kaye Ross
about 1 month ago
I drew a face on a paper plate. Who could even begin to understand how it perceives the world or what it dreams of?
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Alan Clarke
Marianne Heaslip
about 1 month ago
This is on tonight on Channel 4 at 9pm. Very interested to see how they make telly out of retrofit.
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7 new petrol cars sold in Norway last month!
www.theguardian.com/world/2026/f...
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Only seven new petrol-powered cars sold in Norway in January
Data shows 29 hybrid and 98 diesel cars also sold, while the figure for battery electric vehicles was more than 2,000
https://www.theguardian.com/world/2026/feb/06/only-seven-petrol-powered-cars-sold-in-norway-in-january?CMP=share_btn_url
about 1 month ago
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Alan Clarke
Juraj Mikurcik
about 1 month ago
Pretty happy with the final result!
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Alan Clarke
Damian Carrington
about 1 month ago
Wood burners treble children’s exposure to pollution in homes, study finds - Research in Wales found that home, not outdoor travel, was largest contributor to children’s daily exposure
#airpollution
Story by
@drgaryfuller.bsky.social
www.theguardian.com/environment/...
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Wood burners may treble children’s exposure to pollution in homes, study finds
Research in Wales found that home, not outdoor travel, was largest contributor to children’s daily exposure
https://www.theguardian.com/environment/2026/feb/06/children-living-homes-wood-burners-exposed-pollution
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Alan Clarke
Passivhaus Trust
about 2 months ago
📺 Guy Martin's 'House Without Bills' Passivhaus retrofit takes centre stage in the Channel 4 programme Guy Martin’s 'House Without Bills' on Monday 9 February 2026 at 9pm. Read more: https://www.passivhaustrust.org.uk/news/detail/?nId=1534
AECB
Passive House Plus
Nesta
Passive House Accelerator
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Morning!
about 2 months ago
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Alan Clarke
Eleanor Morton
about 2 months ago
Tourguide welcomes you to Scotland in January
youtube.com/shorts/vbtmA...
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tourguide welcomes you to Scotland in January
YouTube video by Eleanor Morton
https://youtube.com/shorts/vbtmAlr-MnQ?si=AfvdD1VwBiLbV1y7
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Alan Clarke
Alex Andreou
about 2 months ago
Isn't this a telling aspiration? To want robots to look after your kids, so you can do stuff, rather than robots to do stuff, so you can spend time with your kids? The darkness inside these shrivelled men must be like a gaping unfillable void.
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Alan Clarke
Mums for Lungs
2 months ago
How much
#AirPollution
is created when you burn wood? 👉 Defra approved/#Ecodesign stove = 400 times more polluting than a gas boiler. 👉 Open fire = 4000 times more polluting than a gas boiler. Please think twice about burning if you don't need to.
#WoodBurning
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Alan Clarke
Ron Filipkowski
2 months ago
Another proud day for America.
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Alan Clarke
Juraj Mikurcik
2 months ago
🌾 Some spaces still left for Wednesday's lunchtime CPD about EcoCocon straw wall system, aimed at construction professionals. Free to attend but registration required 👇
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New EcoCocon Straw Wall System CPD
Who it is for:This training is aimed at professionals from all disciplines of building design and the construction industry; specifically, those who are interested in sustainable, healthy and high per...
https://www.ecologicalbuildingsystems.com/training-course/new-ecococon-straw-wall-system-cpd
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Just seen greenlands eurovision entry
youtu.be/hS0wFiWpU4U
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Greenland Defense Front - The Hungry Giant (Official Music Video)
YouTube video by demonflyingfox
https://youtu.be/hS0wFiWpU4U
2 months ago
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Alan Clarke
Helen Kennedy
2 months ago
Just for the record, and it’s insane that the mad king made me look this up, there is documentation of the US giving up all claim to Greenland to Denmark when we bought the Virgin Islands from them in 1916.
history.state.gov/historicaldo...
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Alan Clarke
Juraj Mikurcik
2 months ago
Updated for 2026
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Alan Clarke
Graeme Swanson
2 months ago
It took us too long to realise when Musk called that cave rescuer a "pedo guy" he meant it as a compliment.
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Alan Clarke
Octopus Energy
2 months ago
This is the short edit. Find the full stress test on our YouTube 👉
www.youtube.com/watch?v=asiY...
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We blew up a kitchen. For science. 💥 Hydrogen vs Methane Gas Leak Test
YouTube video by Octopus Energy
https://www.youtube.com/watch?v=asiYYpy5eJg
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Alan Clarke
Trystan Lea
2 months ago
On your question on required flow temperatures. That's an interesting one. It seems that there are a very large number of properties in the UK with sufficient existing radiators to run at flow temperatures of between 45-50C without radiator upgrades. This is what enables HeatGeek's ZeroDisrupt model
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www.theguardian.com/environment/...
Can anyone here sell me the battery bit? MCS work refed showed £600/a saving for PV and £180 for battery - is that worth maybe £5K to install? Is there a UK merit in batteries in houses vs on grid or at solar farms? And wont my next EV be grid linkable anyway?
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Ministers may cut green tech mandate from new homes regulations in England
Critics say removing battery installation requirement will reduce amount homebuyers save on energy bills
https://www.theguardian.com/environment/2026/jan/02/ministers-may-cut-green-tech-mandate-from-new-homes-regulations-in-england?CMP=Share_iOSApp_Other
3 months ago
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Newbuild ventilation loveliness! Ensuite and bathroom extract were teed to same external terminal - flexi duct broke already and both now vent into the loftspace
3 months ago
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Alan Clarke
Jan Rosenow
3 months ago
NEW RESEARCH: UK heat pumps can perform far better than many think. Our analysis of
HeatPumpMonitor.org
data shows well-designed systems achieve ~40% higher efficiency than past trials (SCoP 3.86 vs 2.81), cutting bills (~£224/yr) and emissions. Open access:
www.sciencedirect.com/science/arti...
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Alan Clarke
Zoë Grünewald
4 months ago
The "don't have an extra kid if you can't afford it" brigade get awfully upset when you suggest they don't stay in their £2m house if they can't afford it, don't they?
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Just came across this presentation by
@glynhudson.bsky.social
of heat pump performance monitoring comparing self monitored installs with those on electricification of heat trial - great insight into what makes heat pumps perform well, and how to fix systems that don't
www.youtube.com/watch?v=SiHt...
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Optimising Heat Pump Performance: Insights from HeatPumpMonitor Data
YouTube video by OpenEnergyMonitor
https://www.youtube.com/watch?v=SiHtzDNWAo4
4 months ago
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Alan Clarke
Lloyd Alter
4 months ago
I would have saved myself a lot of grief had I just said this
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Alan Clarke
Stephen Collins
4 months ago
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Alan Clarke
OpenEnergyMonitor
4 months ago
Do you have a heat pump on
HeatPumpMonitor.org
? If so, we need your help to compile real-world maximum output test data. Watch the video below for how to contribute. There should be some cold temperatures tonight and tomorrow. Thanks! ❄️ 🤞
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Alan Clarke
Stephen Collins
5 months ago
If you're a National Trust member, it's that time of year again: Midnight tonight is the deadline. It's a shame people have to keep doing this to keep a toehold on historical truth in this country, but here we are. Voting link:
www.nationaltrust.org.uk/who-we-are/a...
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Alan Clarke
Iain Soutar
5 months ago
A reminder that some of the money you spend at Amazon this Christmas will be used to build a tacky ballroom for billionaires.
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Alan Clarke
Dr. Aaron Thierry
5 months ago
Recently, we switched out the old wood stove in our house for an electric one. ✅️ Heats room quickly ✅️ Not killing my neighbours ✅️ Still hygge ✅️ No ashes to clean Win, win, win, win 🏆
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