Keith Alexander
@keithalexander.bsky.social
Interested in climate & the environment
What’s the best way to set a Vaillant sensocomfort to do hot water cylinder reheats in the cheap periods of a TOU tariff? (Eg @octopus.energy Cosy).
December 2, 2025 at 8:29 PM
What’s the best way to set a Vaillant sensocomfort to do hot water cylinder reheats in the cheap periods of a TOU tariff? (Eg @octopus.energy Cosy).
Reposted by Keith Alexander
Still reeling from the Stanford report on Brexit. Reduced GDP by up to 8% and investment by as much as 18%. The UK Treasury would have £40 billion more each year if Britain had remained in the EU. Devastating self-immolation.
The Economic Impact of Brexit
Other
siepr.stanford.edu
November 24, 2025 at 11:02 AM
Still reeling from the Stanford report on Brexit. Reduced GDP by up to 8% and investment by as much as 18%. The UK Treasury would have £40 billion more each year if Britain had remained in the EU. Devastating self-immolation.
Reposted by Keith Alexander
And still not a single mea culpa from the architects, many of whom continue to be regarded as sages by much of the press.
Still reeling from the Stanford report on Brexit. Reduced GDP by up to 8% and investment by as much as 18%. The UK Treasury would have £40 billion more each year if Britain had remained in the EU. Devastating self-immolation.
The Economic Impact of Brexit
Other
siepr.stanford.edu
November 25, 2025 at 7:04 AM
And still not a single mea culpa from the architects, many of whom continue to be regarded as sages by much of the press.
Reposted by Keith Alexander
Was just writing about precisely this. www.businessgreen.com/blog-post/45...
COP30 delivered mix of success and failure, but that is no success at all
Belém Summit provided important progress, but the market signals were compromised by petrostate wrecking tactics - the onus is now on leading governments and businesses to deliver the climate action t...
www.businessgreen.com
November 23, 2025 at 11:46 AM
Was just writing about precisely this. www.businessgreen.com/blog-post/45...
Spent way too long insulating this dormer cheek. The tiny crawl space and exit hatch made it time consuming, and important to sequence things in order to escape at the end!
The thermal image from the room shows 240mm woodfibre (red) 75mm shoved up blind, and no insulation (blue) #retrofit
The thermal image from the room shows 240mm woodfibre (red) 75mm shoved up blind, and no insulation (blue) #retrofit
November 22, 2025 at 9:04 AM
Spent way too long insulating this dormer cheek. The tiny crawl space and exit hatch made it time consuming, and important to sequence things in order to escape at the end!
The thermal image from the room shows 240mm woodfibre (red) 75mm shoved up blind, and no insulation (blue) #retrofit
The thermal image from the room shows 240mm woodfibre (red) 75mm shoved up blind, and no insulation (blue) #retrofit
Reposted by Keith Alexander
Smart Tariffs are a game changer for the financial benefits of heat-pumps, household batteries and battery electric vehicles.
We've cut our household energy, heating and transport costs to 39% of what they were before we fully electrified our house and car.
The primary reason is Smart Tariffs.
We've cut our household energy, heating and transport costs to 39% of what they were before we fully electrified our house and car.
The primary reason is Smart Tariffs.
NEW RESEARCH:
Demand flexibility becomes more and more attractive.
We found a whopping 480 smart tariffs and services across Europe — a 3x increase since our 2021/2022 study.
www.sciencedirect.com/science/arti...
@jaapburger.eu @regassistproj.bsky.social @ecioxford.bsky.social
Demand flexibility becomes more and more attractive.
We found a whopping 480 smart tariffs and services across Europe — a 3x increase since our 2021/2022 study.
www.sciencedirect.com/science/arti...
@jaapburger.eu @regassistproj.bsky.social @ecioxford.bsky.social
November 19, 2025 at 9:26 AM
Smart Tariffs are a game changer for the financial benefits of heat-pumps, household batteries and battery electric vehicles.
We've cut our household energy, heating and transport costs to 39% of what they were before we fully electrified our house and car.
The primary reason is Smart Tariffs.
We've cut our household energy, heating and transport costs to 39% of what they were before we fully electrified our house and car.
The primary reason is Smart Tariffs.
Reposted by Keith Alexander
It's a useful reminder that sometimes tech can make a task more efficient for one side (applying for jobs), and more efficient for the other side (writing job adverts), and yet make the system as a whole completely inefficient.
November 14, 2025 at 10:14 AM
It's a useful reminder that sometimes tech can make a task more efficient for one side (applying for jobs), and more efficient for the other side (writing job adverts), and yet make the system as a whole completely inefficient.
A job ad to work on sodium (sulphur) batteries for “power without pollution” from September 18 1977
November 15, 2025 at 5:23 PM
A job ad to work on sodium (sulphur) batteries for “power without pollution” from September 18 1977
It’s funny how different retrofit seems to be in the US from in the UK. Of course the core ideas of insulation, air tightness, ventilation and electrification are the same, but the dominant technologies, terminology and metrics are different. podcasts.apple.com/gb/podcast/t...
Alan Howze and a Whole House Retrofit
Podcast Episode · The Retrofit Podcast · 19/05/2023 · 1h 1m
podcasts.apple.com
November 11, 2025 at 9:02 PM
It’s funny how different retrofit seems to be in the US from in the UK. Of course the core ideas of insulation, air tightness, ventilation and electrification are the same, but the dominant technologies, terminology and metrics are different. podcasts.apple.com/gb/podcast/t...
AEG’s website is shamelessly replete with AI slop 😳
November 7, 2025 at 11:35 PM
AEG’s website is shamelessly replete with AI slop 😳
Fly by private jet and you don’t pay tax on the fuel, and you don’t pay air passenger duty youtube.com/shorts/feOKF...
It's time for a proper tax on private jets
YouTube video by Possible
youtube.com
November 5, 2025 at 8:21 PM
Fly by private jet and you don’t pay tax on the fuel, and you don’t pay air passenger duty youtube.com/shorts/feOKF...
Reposted by Keith Alexander
“People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world. […] The reason we care about climate change is that it's the hole in every bucket." @katharinehayhoe.com
If you take the time to read the whole Gates memo (which I did), the bulk of the content was mostly solid and encouraging. Really!
It was the FRAME that was off--very off, from the first line.
And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
It was the FRAME that was off--very off, from the first line.
And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
October 30, 2025 at 4:00 PM
“People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world. […] The reason we care about climate change is that it's the hole in every bucket." @katharinehayhoe.com
If you’re going to do some insulating or air tightness/draught proofing, I recommend buying or borrowing a thermal image camera if you can.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
October 30, 2025 at 1:26 PM
If you’re going to do some insulating or air tightness/draught proofing, I recommend buying or borrowing a thermal image camera if you can.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
It’s useful not just for identifying areas to insulate, but checking your work for defects that are often not obvious to the naked eye.
Reposted by Keith Alexander
After years of research, scientist Leonid Pshenichnov concluded Russia + China cannot continue fishing krill, the main food source of many marine creatures, at current rates without risking breakdown of entire ocean ecosystems. Russia had him arrested:
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Russia arrests Ukrainian biologist for backing curbs on Antarctic krill fishing
‘Trumped-up’ charges spark diplomatic row as scientists express fears for health of 70-year-old Leonid Pshenichnov
www.theguardian.com
October 28, 2025 at 1:11 PM
After years of research, scientist Leonid Pshenichnov concluded Russia + China cannot continue fishing krill, the main food source of many marine creatures, at current rates without risking breakdown of entire ocean ecosystems. Russia had him arrested:
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Gas meter removal day today 🥳🐙⚡️
October 28, 2025 at 7:20 AM
Gas meter removal day today 🥳🐙⚡️
Reposted by Keith Alexander
But seriously: I'm prepping for a panel on Abundance and climate and going down the rabbit hole of documenting everything so I can cite it, and I'm finding things are SO much worse than I even thought.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
October 27, 2025 at 8:39 PM
But seriously: I'm prepping for a panel on Abundance and climate and going down the rabbit hole of documenting everything so I can cite it, and I'm finding things are SO much worse than I even thought.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Did you know that the Charles Koch Foundation was a sponser of Abundance 2024?
No, really.
Reposted by Keith Alexander
WOW: "Covid-19 vaccines... set off a powerful alarm that rallies the human immune system against cancer and nearly doubles the median survival length of patients, according to a new retrospective study by researchers at the University of Texas MD Anderson Cancer Center & the University of Florida."
NEW STUDY PUBLISHED IN NATURE: People who got an mRNA COVID vaccine within ~3 months before or after starting immunotherapy for cancer lived longer overall than those who didn’t get the vaccine.
www.washingtonpost.com/science/2025...
www.washingtonpost.com/science/2025...
October 23, 2025 at 11:54 PM
WOW: "Covid-19 vaccines... set off a powerful alarm that rallies the human immune system against cancer and nearly doubles the median survival length of patients, according to a new retrospective study by researchers at the University of Texas MD Anderson Cancer Center & the University of Florida."
Raggling/chasing rigid woodfibre. Palm router worked well for cutting a fixed depth, and creates loose insulation collected in the vacuum, which might come in handy elsewhere. #retrofit
October 22, 2025 at 4:59 PM
Raggling/chasing rigid woodfibre. Palm router worked well for cutting a fixed depth, and creates loose insulation collected in the vacuum, which might come in handy elsewhere. #retrofit
Solar power but make it bad for the environment
A US tech bro corp in the US has decided the night sky should go away. They've made that decision for everyone on Earth.
Naturally they've named the first searing orbital array (many times brighter than the moon) after Eärendil, the light bearer, from Tolkien's work
www.space.com/space-explor...
Naturally they've named the first searing orbital array (many times brighter than the moon) after Eärendil, the light bearer, from Tolkien's work
www.space.com/space-explor...
Company's plan to launch 4,000 space mirrors alarms scientists
Reflect Orbital says their light-on-demand idea has generated significant interest from commercial and government customers.
www.space.com
October 22, 2025 at 4:07 PM
Solar power but make it bad for the environment
Reposted by Keith Alexander
📢 Episode 4 is out now!
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
October 20, 2025 at 9:38 AM
📢 Episode 4 is out now!
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
Last year, Spain was hit by one of the worst disasters in its history
It was driven by climate change
But it ended up boosting climate deniers...
How can the world stop this from happening again?
Listen now: overshootpod.com
This is really good @overshootpod.bsky.social
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
Overshoot: Navigating a world beyond 1.5°C
Science Podcast · In 2015, the world agreed to limit global heating to 1.5°C. Ten years later, temperatures are spiralling beyond this and climate chaos is wreaking havoc across the globe.
How did w...
podcasts.apple.com
October 19, 2025 at 10:06 PM
This is really good @overshootpod.bsky.social
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
@laurielaybourn.bsky.social
podcasts.apple.com/gb/podcast/o...
Reposted by Keith Alexander
