Robert Osfield
@robertosfield.bsky.social
Project lead of open source VulkanSceneGraph and OpenSceneGraph projects, software consultant, runner, tech transition tracker and family man.
From the trajectory of Poland's electric grid looks Renewables will provide more power than Coal around 2027.
Truly remarkable: Poland used to be a climate laggard.
Today, wind and solar are increasingly replacing coal in the Polish electricity mix with almost 30% of all electricity generated to date this year from wind and solar.
In 2000 coal provided 95% of Polish electricity.
Today it is at 51%.
Today, wind and solar are increasingly replacing coal in the Polish electricity mix with almost 30% of all electricity generated to date this year from wind and solar.
In 2000 coal provided 95% of Polish electricity.
Today it is at 51%.
November 13, 2025 at 11:32 AM
From the trajectory of Poland's electric grid looks Renewables will provide more power than Coal around 2027.
Great to see solar, batteries and wind power all combined in one yacht, really need to expand this out to cargo ships.
www.youtube.com/watch?v=RnJx...
www.youtube.com/watch?v=RnJx...
MODX 70: The Winged Revolution in Luxury Sailing
YouTube video by The Earth Circle
www.youtube.com
November 12, 2025 at 6:11 PM
Great to see solar, batteries and wind power all combined in one yacht, really need to expand this out to cargo ships.
www.youtube.com/watch?v=RnJx...
www.youtube.com/watch?v=RnJx...
Reposted by Robert Osfield
Graphics Programming weekly - Issue 416 - November 9th, 2025 www.jendrikillner.com/post/graphic...
November 11, 2025 at 4:06 PM
Graphics Programming weekly - Issue 416 - November 9th, 2025 www.jendrikillner.com/post/graphic...
Like @rustneversleeps.bsky.social and @mliebreich.bsky.social I find simplified analysis helpful in understanding relationships in a system.
Our transition away from fossil fuels is critical task for humanity to undertake, modelling & tracking progress helps us grasp the scale of the challenge.
Our transition away from fossil fuels is critical task for humanity to undertake, modelling & tracking progress helps us grasp the scale of the challenge.
Listening to @volts.wtf recent panel/podcast with @mliebreich.bsky.social , discussing his "Pragmatic Climate Reset", published in two parts at BNEF last September.
Michael mentioned his "simplest energy model ever" - just 4 parameters - and I decided to sketch up and add emissions and temps.
Michael mentioned his "simplest energy model ever" - just 4 parameters - and I decided to sketch up and add emissions and temps.
November 11, 2025 at 10:08 AM
Like @rustneversleeps.bsky.social and @mliebreich.bsky.social I find simplified analysis helpful in understanding relationships in a system.
Our transition away from fossil fuels is critical task for humanity to undertake, modelling & tracking progress helps us grasp the scale of the challenge.
Our transition away from fossil fuels is critical task for humanity to undertake, modelling & tracking progress helps us grasp the scale of the challenge.
Reposted by Robert Osfield
This is what premiums spike to for a man with cancer who is a taxi driver in AZ (met his son). This is Ambetter, operated by private health insurer Centene. It's why we need to extend the ACA credits & fight for Medicare for All.
November 9, 2025 at 11:22 PM
This is what premiums spike to for a man with cancer who is a taxi driver in AZ (met his son). This is Ambetter, operated by private health insurer Centene. It's why we need to extend the ACA credits & fight for Medicare for All.
Solar prices have dropped from $128/Watt in 1975 to $0.26/Watt in 2024. This astonishing drop can be viewed on a linear scale, but this makes it look like price drops have dropped little in the past 20 years.
Logarithmic scale shows the relative price drops have accelerated since 2008!
Logarithmic scale shows the relative price drops have accelerated since 2008!
November 10, 2025 at 9:53 AM
Solar prices have dropped from $128/Watt in 1975 to $0.26/Watt in 2024. This astonishing drop can be viewed on a linear scale, but this makes it look like price drops have dropped little in the past 20 years.
Logarithmic scale shows the relative price drops have accelerated since 2008!
Logarithmic scale shows the relative price drops have accelerated since 2008!
Reposted by Robert Osfield
Vital piece of investigative reporting from Sky. They've uncovered the X algorithm which feeds users extremist right wing material from the moment they join the site. It is a far-right radicalisation engine, by design.
news.sky.com/story/the-x-...
news.sky.com/story/the-x-...
Elon Musk is boosting the British right - and this shows how
Elon Musk is boosting the British right - and this shows how
news.sky.com
November 6, 2025 at 7:23 AM
Vital piece of investigative reporting from Sky. They've uncovered the X algorithm which feeds users extremist right wing material from the moment they join the site. It is a far-right radicalisation engine, by design.
news.sky.com/story/the-x-...
news.sky.com/story/the-x-...
I'm impressed at how patient @mliebreich.bsky.social was in this debate.
The economic viability of the hydrogen economy relies upon everything else being more expensive so it can compete.
Meanwhile renewables, battery storage & direct electrification are already cheaper than Fossil Fuel Systems.
The economic viability of the hydrogen economy relies upon everything else being more expensive so it can compete.
Meanwhile renewables, battery storage & direct electrification are already cheaper than Fossil Fuel Systems.
The average hydrogen share price fell 90% between January 2022 and April this year. It is now down only 89%. According to Erik Rakhou, this tiny dead cat bounce is evidence of the dawn of the Hydrogen Economy. What do you think? Listen to the debate: youtu.be/FSWDgNWeVjk?...
Why There'll Never Be A Hydrogen Economy | Ep232: Erik Rakhou
YouTube video by Cleaning Up Podcast
youtu.be
November 6, 2025 at 3:36 PM
I'm impressed at how patient @mliebreich.bsky.social was in this debate.
The economic viability of the hydrogen economy relies upon everything else being more expensive so it can compete.
Meanwhile renewables, battery storage & direct electrification are already cheaper than Fossil Fuel Systems.
The economic viability of the hydrogen economy relies upon everything else being more expensive so it can compete.
Meanwhile renewables, battery storage & direct electrification are already cheaper than Fossil Fuel Systems.
Reposted by Robert Osfield
Updates of monthly car sales data in the last few days.
robbieandrew.github.io/carsales/
robbieandrew.github.io/carsales/
November 6, 2025 at 10:36 AM
Updates of monthly car sales data in the last few days.
robbieandrew.github.io/carsales/
robbieandrew.github.io/carsales/
@smmt-ukauto.bsky.social have published their UK October 2025 new car registration figures, with BEV and PHEVs both show strong growth while pure Petrol and Diesel segments shrinking.
If BEVs continue to follow this growth trajectory then they'll likely be half of UK new car sales in 2027.
If BEVs continue to follow this growth trajectory then they'll likely be half of UK new car sales in 2027.
November 5, 2025 at 9:06 PM
@smmt-ukauto.bsky.social have published their UK October 2025 new car registration figures, with BEV and PHEVs both show strong growth while pure Petrol and Diesel segments shrinking.
If BEVs continue to follow this growth trajectory then they'll likely be half of UK new car sales in 2027.
If BEVs continue to follow this growth trajectory then they'll likely be half of UK new car sales in 2027.
Reposted by Robert Osfield
Graphics Programming weekly - Issue 415 - November 2nd, 2025 www.jendrikillner.com/post/graphic...
November 4, 2025 at 2:55 PM
Graphics Programming weekly - Issue 415 - November 2nd, 2025 www.jendrikillner.com/post/graphic...
Reposted by Robert Osfield
What makes a heat pump install efficient? 📈
I presented the data-backed insights from @openenergymon.bsky.social heatpumpmonitor.org at a recent CarbonTrust webinar.
Watch the recording: youtu.be/C16nBd85XOM?...
I presented the data-backed insights from @openenergymon.bsky.social heatpumpmonitor.org at a recent CarbonTrust webinar.
Watch the recording: youtu.be/C16nBd85XOM?...
HeatpumpMonitor.org - Heat Pump Performance Data
An open-source initiative to share and compare heat pump performance data. Join our community of heat pump owners sharing real-world performance data.
HeatPumpMonitor.org
November 4, 2025 at 11:54 AM
What makes a heat pump install efficient? 📈
I presented the data-backed insights from @openenergymon.bsky.social heatpumpmonitor.org at a recent CarbonTrust webinar.
Watch the recording: youtu.be/C16nBd85XOM?...
I presented the data-backed insights from @openenergymon.bsky.social heatpumpmonitor.org at a recent CarbonTrust webinar.
Watch the recording: youtu.be/C16nBd85XOM?...
Reposted by Robert Osfield
Tomorrow is your last chance to vote YES on Prop 50 in California.
Remember, nobody gets to sit out on elections anymore. Fascism is here, and the Trump cult wants it to stay. The best way to beat it is to #VOTE.
#VoteBlueToSaveDemocracy #VoteOutEveryRepublican
Remember, nobody gets to sit out on elections anymore. Fascism is here, and the Trump cult wants it to stay. The best way to beat it is to #VOTE.
#VoteBlueToSaveDemocracy #VoteOutEveryRepublican
California set to approve Prop 50 as voters signal displeasure with Trump
Voters set to accept new maps to help Democrats counter Republican gerrymandering – and check president’s power
www.theguardian.com
November 3, 2025 at 3:36 PM
Tomorrow is your last chance to vote YES on Prop 50 in California.
Remember, nobody gets to sit out on elections anymore. Fascism is here, and the Trump cult wants it to stay. The best way to beat it is to #VOTE.
#VoteBlueToSaveDemocracy #VoteOutEveryRepublican
Remember, nobody gets to sit out on elections anymore. Fascism is here, and the Trump cult wants it to stay. The best way to beat it is to #VOTE.
#VoteBlueToSaveDemocracy #VoteOutEveryRepublican
Savage, but highlights a major problem with current AI.
November 3, 2025 at 8:13 AM
Savage, but highlights a major problem with current AI.
Reposted by Robert Osfield
New blog article on the site
Vaillant aroTHERM Basic Hot Water Settings
energy-stats.uk/vaillant-aro...
A look through all the Vaillant heat pump hot water settings, what they do and some recommendations.
Hope this is useful. 👍
Vaillant aroTHERM Basic Hot Water Settings
energy-stats.uk/vaillant-aro...
A look through all the Vaillant heat pump hot water settings, what they do and some recommendations.
Hope this is useful. 👍
Vaillant Arotherm Basic Hot Water Settings | Energy Stats UK
Guide to Vaillant AroTHERM Basic Hot Water Settings. Learn how to set temperatures, schedules and modes for efficient and reliable hot water.
energy-stats.uk
November 2, 2025 at 10:25 AM
New blog article on the site
Vaillant aroTHERM Basic Hot Water Settings
energy-stats.uk/vaillant-aro...
A look through all the Vaillant heat pump hot water settings, what they do and some recommendations.
Hope this is useful. 👍
Vaillant aroTHERM Basic Hot Water Settings
energy-stats.uk/vaillant-aro...
A look through all the Vaillant heat pump hot water settings, what they do and some recommendations.
Hope this is useful. 👍
This graph of life expectancy needs to be named the #DonaldDip.
The massive drop in life expectancy during COVID has in the US far outstrips the drop in other nations. This all happened in Donald Trump's first presidency.
The massive drop in life expectancy during COVID has in the US far outstrips the drop in other nations. This all happened in Donald Trump's first presidency.
This graph never fails to be shocking: "The US has experienced the earliest and greatest slowdown in life expectancy improvements among higher-income countries, reported Eileen Crimmins. “We have horrible life expectancy—and it’s getting worse and worse”"
www.prb.org/resources/se...
www.prb.org/resources/se...
November 2, 2025 at 8:36 AM
This graph of life expectancy needs to be named the #DonaldDip.
The massive drop in life expectancy during COVID has in the US far outstrips the drop in other nations. This all happened in Donald Trump's first presidency.
The massive drop in life expectancy during COVID has in the US far outstrips the drop in other nations. This all happened in Donald Trump's first presidency.
Adoption of solar and batteries in households and businesses across the world could well be a getaway into transitioning from fossil fuelled solutions for transport and heating to electrified ones.
Once you adopt successfully one of these solutions you'll be more receptive to others.
Once you adopt successfully one of these solutions you'll be more receptive to others.
The underlying fundamental economics have changed dramatically: solar is now so cheap that businesses and households all around the world install it often without subsidies. Throw in batteries and the business case just keeps improving.
November 1, 2025 at 3:35 PM
Adoption of solar and batteries in households and businesses across the world could well be a getaway into transitioning from fossil fuelled solutions for transport and heating to electrified ones.
Once you adopt successfully one of these solutions you'll be more receptive to others.
Once you adopt successfully one of these solutions you'll be more receptive to others.
Reposted by Robert Osfield
LunarG's KosmicKrisp driver is now a Khronos Vulkan 1.3 Conformant product for Apple M3 Pro!
Say goodbye to portability hacks; hello native Vulkan power for macOS devs, Android emulation, & beyond.
www.lunarg.com/lunarg-achie...
#Vulkan #AppleSilicon #Mesa #GraphicsDev
Say goodbye to portability hacks; hello native Vulkan power for macOS devs, Android emulation, & beyond.
www.lunarg.com/lunarg-achie...
#Vulkan #AppleSilicon #Mesa #GraphicsDev
LunarG Achieves Vulkan 1.3 Conformance with KosmicKrisp on Apple Silicon - LunarG
KosmicKrisp, LunarG’s Vulkan-to-Metal driver for Apple Silicon, has passed the Vulkan Conformance Test Suite (CTS), a rigorous, Khronos-mandated benchmark of API correctness.
www.lunarg.com
October 31, 2025 at 2:47 PM
LunarG's KosmicKrisp driver is now a Khronos Vulkan 1.3 Conformant product for Apple M3 Pro!
Say goodbye to portability hacks; hello native Vulkan power for macOS devs, Android emulation, & beyond.
www.lunarg.com/lunarg-achie...
#Vulkan #AppleSilicon #Mesa #GraphicsDev
Say goodbye to portability hacks; hello native Vulkan power for macOS devs, Android emulation, & beyond.
www.lunarg.com/lunarg-achie...
#Vulkan #AppleSilicon #Mesa #GraphicsDev
Last week visited a client in Belgium and chose to drive & take the Hull-Rotterdam ferry rather fly.
It took 24hrs door to door in both directions including Ferry. Driving. Not quick but lower CO2 and more flexible.
Total cost of home and public charging was £80.62, which is 9p/mile.
Ferry £303!
It took 24hrs door to door in both directions including Ferry. Driving. Not quick but lower CO2 and more flexible.
Total cost of home and public charging was £80.62, which is 9p/mile.
Ferry £303!
October 29, 2025 at 7:44 PM
Last week visited a client in Belgium and chose to drive & take the Hull-Rotterdam ferry rather fly.
It took 24hrs door to door in both directions including Ferry. Driving. Not quick but lower CO2 and more flexible.
Total cost of home and public charging was £80.62, which is 9p/mile.
Ferry £303!
It took 24hrs door to door in both directions including Ferry. Driving. Not quick but lower CO2 and more flexible.
Total cost of home and public charging was £80.62, which is 9p/mile.
Ferry £303!
Reposted by Robert Osfield
The number of heat pumps going into new residential buildings in Germany has risen dramatically, but - just like EVs with fleet turnover - this has to propagate to the entire housing stock. At least we can see that gas has now peaked in the German housing stock.
October 29, 2025 at 1:24 PM
The number of heat pumps going into new residential buildings in Germany has risen dramatically, but - just like EVs with fleet turnover - this has to propagate to the entire housing stock. At least we can see that gas has now peaked in the German housing stock.
Reposted by Robert Osfield
Graphics Programming weekly - Issue 414 - October 26th, 2025 www.jendrikillner.com/post/graphic...
October 29, 2025 at 2:18 PM
Graphics Programming weekly - Issue 414 - October 26th, 2025 www.jendrikillner.com/post/graphic...
Reposted by Robert Osfield
A majority of voters, and a plurality of white voters, think that Reform is a racist party with racist policies.
October 28, 2025 at 2:03 PM
A majority of voters, and a plurality of white voters, think that Reform is a racist party with racist policies.
Reposted by Robert Osfield
Wow!
"Without the Musk partisan effect, Tesla sales between October 2022 and April 2025 would have been 67-83% higher, equivalent to 1-1.26 million more vehicles. Musk’s partisan activities also increased the sales of other automakers' electric and hybrid vehicles 17-22%"
www.nber.org/papers/w34413
"Without the Musk partisan effect, Tesla sales between October 2022 and April 2025 would have been 67-83% higher, equivalent to 1-1.26 million more vehicles. Musk’s partisan activities also increased the sales of other automakers' electric and hybrid vehicles 17-22%"
www.nber.org/papers/w34413
The Musk Partisan Effect on Tesla Sales
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...
www.nber.org
October 28, 2025 at 9:32 PM
Wow!
"Without the Musk partisan effect, Tesla sales between October 2022 and April 2025 would have been 67-83% higher, equivalent to 1-1.26 million more vehicles. Musk’s partisan activities also increased the sales of other automakers' electric and hybrid vehicles 17-22%"
www.nber.org/papers/w34413
"Without the Musk partisan effect, Tesla sales between October 2022 and April 2025 would have been 67-83% higher, equivalent to 1-1.26 million more vehicles. Musk’s partisan activities also increased the sales of other automakers' electric and hybrid vehicles 17-22%"
www.nber.org/papers/w34413
Over production due to shrinking consumption of oil will be a big story over the next decade.
Oil price will drop, nations with expensive to extract oil will cease production first, until it's just a handful of petrol states left.
I expect we'll see the begining of big changes this decade.
Oil price will drop, nations with expensive to extract oil will cease production first, until it's just a handful of petrol states left.
I expect we'll see the begining of big changes this decade.
"The global oil market may be at a tipping point as signs of a significant supply glut emerge" writes the IEA.
Tepid demand due to "subpar economic conditions, increasing vehicle efficiencies, & robust electric vehicle sales in many markets." 😮
www.iea.org/commentaries...
Tepid demand due to "subpar economic conditions, increasing vehicle efficiencies, & robust electric vehicle sales in many markets." 😮
www.iea.org/commentaries...
As oil market surplus keeps rising, something’s got to give – Analysis - IEA
As oil market surplus keeps rising, something’s got to give - A commentary by Toril Bosoni
www.iea.org
October 27, 2025 at 8:04 AM
Over production due to shrinking consumption of oil will be a big story over the next decade.
Oil price will drop, nations with expensive to extract oil will cease production first, until it's just a handful of petrol states left.
I expect we'll see the begining of big changes this decade.
Oil price will drop, nations with expensive to extract oil will cease production first, until it's just a handful of petrol states left.
I expect we'll see the begining of big changes this decade.