Robert Osfield
@robertosfield.bsky.social
Project lead of open source VulkanSceneGraph and OpenSceneGraph projects, software consultant, runner, tech transition tracker and family man.
At national scale we can also see how energy demand isn't always upward.
Here in the UK electricity demand has fallen steadily over the past 2 decades.
ourworldindata.org/grapher/elec...
Here in the UK electricity demand has fallen steadily over the past 2 decades.
ourworldindata.org/grapher/elec...
November 11, 2025 at 10:18 AM
At national scale we can also see how energy demand isn't always upward.
Here in the UK electricity demand has fallen steadily over the past 2 decades.
ourworldindata.org/grapher/elec...
Here in the UK electricity demand has fallen steadily over the past 2 decades.
ourworldindata.org/grapher/elec...
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!
@janrosenow.bsky.social's original post was about Europe, so just looking at Europe we can see how far we've come in moving away from Coal.
November 7, 2025 at 4:00 PM
@janrosenow.bsky.social's original post was about Europe, so just looking at Europe we can see how far we've come in moving away from Coal.
That graph is just so wrong.
For a clearer picture of what is going on here's the actual up to date data:
ourworldindata.org/grapher/coal...
For a clearer picture of what is going on here's the actual up to date data:
ourworldindata.org/grapher/coal...
November 7, 2025 at 3:53 PM
That graph is just so wrong.
For a clearer picture of what is going on here's the actual up to date data:
ourworldindata.org/grapher/coal...
For a clearer picture of what is going on here's the actual up to date data:
ourworldindata.org/grapher/coal...
The pure Petrol car segment remains the largest but shrank substantially from last year. While BEV has been 2nd largest segment since October 2023 and growing rapidly it looks likely that BEVs will be become the biggest car segment next year.
November 5, 2025 at 9:11 PM
The pure Petrol car segment remains the largest but shrank substantially from last year. While BEV has been 2nd largest segment since October 2023 and growing rapidly it looks likely that BEVs will be become the biggest car segment next year.
@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.
Is this what they really mean?
October 30, 2025 at 5:58 PM
Is this what they really mean?
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!
Amusingly both Toyota and Tesla's sales have dropped in the UK this year, all while both PHEV and BEV sales they are known for have boomed in 2025.
From @smmt-ukauto.bsky.social:
www.smmt.co.uk/vehicle-data...
From @smmt-ukauto.bsky.social:
www.smmt.co.uk/vehicle-data...
October 29, 2025 at 1:02 PM
Amusingly both Toyota and Tesla's sales have dropped in the UK this year, all while both PHEV and BEV sales they are known for have boomed in 2025.
From @smmt-ukauto.bsky.social:
www.smmt.co.uk/vehicle-data...
From @smmt-ukauto.bsky.social:
www.smmt.co.uk/vehicle-data...
To understand the absurdity of making "pretty much every" statements lets look at the worldwide top models in 2023: Tesla Model Y dethroned Toyota from the top spot.
So would it be valid to say "pretty much every car sold in 2023 was a Model Y"?
No, that would be absurd, factually wrong statement.
So would it be valid to say "pretty much every car sold in 2023 was a Model Y"?
No, that would be absurd, factually wrong statement.
October 29, 2025 at 11:10 AM
To understand the absurdity of making "pretty much every" statements lets look at the worldwide top models in 2023: Tesla Model Y dethroned Toyota from the top spot.
So would it be valid to say "pretty much every car sold in 2023 was a Model Y"?
No, that would be absurd, factually wrong statement.
So would it be valid to say "pretty much every car sold in 2023 was a Model Y"?
No, that would be absurd, factually wrong statement.
BS detected: "pretty much every minicab driver owns one"
Reality only 15.5% of taxi & private hire drivers drive a Toyota. Less than 1 in 6 is a pretty odd definition of "pretty much every".
Most popular brand is actually Ford with 21.5%.
Source:
www.taxiplus.co.uk/news/the-mos...
Reality only 15.5% of taxi & private hire drivers drive a Toyota. Less than 1 in 6 is a pretty odd definition of "pretty much every".
Most popular brand is actually Ford with 21.5%.
Source:
www.taxiplus.co.uk/news/the-mos...
October 29, 2025 at 10:33 AM
BS detected: "pretty much every minicab driver owns one"
Reality only 15.5% of taxi & private hire drivers drive a Toyota. Less than 1 in 6 is a pretty odd definition of "pretty much every".
Most popular brand is actually Ford with 21.5%.
Source:
www.taxiplus.co.uk/news/the-mos...
Reality only 15.5% of taxi & private hire drivers drive a Toyota. Less than 1 in 6 is a pretty odd definition of "pretty much every".
Most popular brand is actually Ford with 21.5%.
Source:
www.taxiplus.co.uk/news/the-mos...
October 17, 2025 at 4:12 PM
I've so busy that it's taken me 2 weeks to update my BEV market share spreadsheet.
Market share for BEVs grew from 20.5% in September 2024 to 23.3% September 2025, in the same period market share for the biggest segment Petrol dropped from 50.1% to 45.2%.
Market share for BEVs grew from 20.5% in September 2024 to 23.3% September 2025, in the same period market share for the biggest segment Petrol dropped from 50.1% to 45.2%.
October 17, 2025 at 4:10 PM
I've so busy that it's taken me 2 weeks to update my BEV market share spreadsheet.
Market share for BEVs grew from 20.5% in September 2024 to 23.3% September 2025, in the same period market share for the biggest segment Petrol dropped from 50.1% to 45.2%.
Market share for BEVs grew from 20.5% in September 2024 to 23.3% September 2025, in the same period market share for the biggest segment Petrol dropped from 50.1% to 45.2%.
August 2025 vs 2024 shows a massive 69.4% growth PHEV sales, and a solid 14.9% growth in BEV sales, with equally significant drops in HEV, PETROL and DIESEL sales.
Overall market shrank 2% year on year, but year to date achieved a 2.1% growth.
Overall market shrank 2% year on year, but year to date achieved a 2.1% growth.
September 7, 2025 at 10:17 AM
August 2025 vs 2024 shows a massive 69.4% growth PHEV sales, and a solid 14.9% growth in BEV sales, with equally significant drops in HEV, PETROL and DIESEL sales.
Overall market shrank 2% year on year, but year to date achieved a 2.1% growth.
Overall market shrank 2% year on year, but year to date achieved a 2.1% growth.
@smmt-ukauto.bsky.social have published UK car registration data for August and it's another big month for growth of plugin cars.
Trajectory of BEV market share still looks on track to be over half of new car sales by Spring 2027.
Trajectory of BEV market share still looks on track to be over half of new car sales by Spring 2027.
September 7, 2025 at 10:13 AM
@smmt-ukauto.bsky.social have published UK car registration data for August and it's another big month for growth of plugin cars.
Trajectory of BEV market share still looks on track to be over half of new car sales by Spring 2027.
Trajectory of BEV market share still looks on track to be over half of new car sales by Spring 2027.
Tesla sales are significantly down year on year, collapsing by 60%.
Model Y refresh clearly hasn't revived Tesla's fortunes.
Toxic Musk effect? Competition from European and Chinese brands?
Model Y refresh clearly hasn't revived Tesla's fortunes.
Toxic Musk effect? Competition from European and Chinese brands?
August 5, 2025 at 9:16 AM
Tesla sales are significantly down year on year, collapsing by 60%.
Model Y refresh clearly hasn't revived Tesla's fortunes.
Toxic Musk effect? Competition from European and Chinese brands?
Model Y refresh clearly hasn't revived Tesla's fortunes.
Toxic Musk effect? Competition from European and Chinese brands?
Break down of the fuel types for July and for the year to date show how relative strengths of each type ebb and flow each month.
Year to date show clear strong growth for BEV and PHEV of 31% and 31.5% respectively, muted growth for HEV at 6.5%, and steady decline of Petrol and Diesel over 10% down.
Year to date show clear strong growth for BEV and PHEV of 31% and 31.5% respectively, muted growth for HEV at 6.5%, and steady decline of Petrol and Diesel over 10% down.
August 5, 2025 at 9:09 AM
Break down of the fuel types for July and for the year to date show how relative strengths of each type ebb and flow each month.
Year to date show clear strong growth for BEV and PHEV of 31% and 31.5% respectively, muted growth for HEV at 6.5%, and steady decline of Petrol and Diesel over 10% down.
Year to date show clear strong growth for BEV and PHEV of 31% and 31.5% respectively, muted growth for HEV at 6.5%, and steady decline of Petrol and Diesel over 10% down.
@smmt have published their UK new car registration figures for July 2025, BEV and PHEV grew 9.1 and 33.0% respectively, while HEV, Petrol and Diesel shrank 10, 14.7 and 7.9% respectively. Overall market shrank 5%.
Strength of PHEV pushes back the late BEV adoption curve to 50% around May 2027.
Strength of PHEV pushes back the late BEV adoption curve to 50% around May 2027.
August 5, 2025 at 9:05 AM
@smmt have published their UK new car registration figures for July 2025, BEV and PHEV grew 9.1 and 33.0% respectively, while HEV, Petrol and Diesel shrank 10, 14.7 and 7.9% respectively. Overall market shrank 5%.
Strength of PHEV pushes back the late BEV adoption curve to 50% around May 2027.
Strength of PHEV pushes back the late BEV adoption curve to 50% around May 2027.
North Scotland region 100% powered by Wind. We got so much wind power we're exporting to other parts of the UK reducing their reliance on Gas. Love it.
A lot more folks need to tell Trump and his fossil cronies to F*** OFF you corrupt and abhorrent example of humanity.
A lot more folks need to tell Trump and his fossil cronies to F*** OFF you corrupt and abhorrent example of humanity.
July 27, 2025 at 8:39 AM
North Scotland region 100% powered by Wind. We got so much wind power we're exporting to other parts of the UK reducing their reliance on Gas. Love it.
A lot more folks need to tell Trump and his fossil cronies to F*** OFF you corrupt and abhorrent example of humanity.
A lot more folks need to tell Trump and his fossil cronies to F*** OFF you corrupt and abhorrent example of humanity.
UK gov report on public charging stats :
www.gov.uk/government/s...
"there were 82,002 public electric vehicle charging devices
available in the UK in July 2025, an increase of 27% since July 2024"
www.gov.uk/government/s...
"there were 82,002 public electric vehicle charging devices
available in the UK in July 2025, an increase of 27% since July 2024"
July 26, 2025 at 9:52 AM
UK gov report on public charging stats :
www.gov.uk/government/s...
"there were 82,002 public electric vehicle charging devices
available in the UK in July 2025, an increase of 27% since July 2024"
www.gov.uk/government/s...
"there were 82,002 public electric vehicle charging devices
available in the UK in July 2025, an increase of 27% since July 2024"
The individual segments show how BEV and PHEV are growing strongly with the HEV and pure Petrol segments shrinking or Diesel a distant last stagnant.
BEV continues to chase down pure Petrol segment, hard to project when BEV will overtake Petrol as the data is so noisy, but I'd guess mid 2026.
BEV continues to chase down pure Petrol segment, hard to project when BEV will overtake Petrol as the data is so noisy, but I'd guess mid 2026.
July 4, 2025 at 8:37 AM
The individual segments show how BEV and PHEV are growing strongly with the HEV and pure Petrol segments shrinking or Diesel a distant last stagnant.
BEV continues to chase down pure Petrol segment, hard to project when BEV will overtake Petrol as the data is so noisy, but I'd guess mid 2026.
BEV continues to chase down pure Petrol segment, hard to project when BEV will overtake Petrol as the data is so noisy, but I'd guess mid 2026.
@smmt-ukauto.bsky.social have published their UK new car registration data for June and it shows 39.1% year on year growth for BEVs, slightly outstripping the later S-Curve.
Keep this up and we'll see more than 50% BEV new car sales by January 2027.
Keep this up and we'll see more than 50% BEV new car sales by January 2027.
July 4, 2025 at 8:28 AM
@smmt-ukauto.bsky.social have published their UK new car registration data for June and it shows 39.1% year on year growth for BEVs, slightly outstripping the later S-Curve.
Keep this up and we'll see more than 50% BEV new car sales by January 2027.
Keep this up and we'll see more than 50% BEV new car sales by January 2027.
July 3, 2025 at 8:28 AM
UK Gov have published 2024 vehicle licensing figures:
www.gov.uk/government/s...
Overall vehicle fleet grew by 1% of which 3.4% are now zero emissions.
Zero emissions fleet grew 37% year on year. Another growth year like that and we could see 5% by end of 2025.
www.gov.uk/government/s...
Overall vehicle fleet grew by 1% of which 3.4% are now zero emissions.
Zero emissions fleet grew 37% year on year. Another growth year like that and we could see 5% by end of 2025.
June 11, 2025 at 1:17 PM
UK Gov have published 2024 vehicle licensing figures:
www.gov.uk/government/s...
Overall vehicle fleet grew by 1% of which 3.4% are now zero emissions.
Zero emissions fleet grew 37% year on year. Another growth year like that and we could see 5% by end of 2025.
www.gov.uk/government/s...
Overall vehicle fleet grew by 1% of which 3.4% are now zero emissions.
Zero emissions fleet grew 37% year on year. Another growth year like that and we could see 5% by end of 2025.
Our new garden pond resident is getting bolder. Out enjoying the ☀️
June 11, 2025 at 11:42 AM
Our new garden pond resident is getting bolder. Out enjoying the ☀️