James Twallin
@twallinjames.bsky.social
Are gas companies marking their own homework?
Yes, yes they are.
Yes, yes they are.
December 3, 2025 at 1:59 PM
Are gas companies marking their own homework?
Yes, yes they are.
Yes, yes they are.
Spot the issue? Apart from climbing bills...
November 21, 2025 at 11:21 AM
Spot the issue? Apart from climbing bills...
RANT:
Traffic to windtable.co.uk drops at weekends, so people are clearly using it at work.
I've put a "what are you using this for?" form on the site.
Do people fill it in? No. Rude.
Traffic to windtable.co.uk drops at weekends, so people are clearly using it at work.
I've put a "what are you using this for?" form on the site.
Do people fill it in? No. Rude.
November 16, 2025 at 9:43 PM
RANT:
Traffic to windtable.co.uk drops at weekends, so people are clearly using it at work.
I've put a "what are you using this for?" form on the site.
Do people fill it in? No. Rude.
Traffic to windtable.co.uk drops at weekends, so people are clearly using it at work.
I've put a "what are you using this for?" form on the site.
Do people fill it in? No. Rude.
𝗪𝗵𝗲𝗻 𝘆𝗼𝘂 𝗹𝗼𝗼𝗸 𝗮𝘁 𝘁𝗵𝗲 𝗱𝗮𝘁𝗮 𝗼𝗻 𝗵𝗲𝗮𝘁 𝗽𝘂𝗺𝗽 𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻𝘀, 𝘄𝗲'𝗿𝗲 𝗻𝗼𝘁 𝗵𝗶𝘁𝘁𝗶𝗻𝗴 𝗺𝗮𝘀𝘀 𝗮𝗱𝗼𝗽𝘁𝗶𝗼𝗻.
With average install costs running at more than £13k, innovation to reduce cost whilst maintaining excellent installs should be applauded.
Business as usual is not going to cut it...
With average install costs running at more than £13k, innovation to reduce cost whilst maintaining excellent installs should be applauded.
Business as usual is not going to cut it...
November 6, 2025 at 3:29 PM
𝗪𝗵𝗲𝗻 𝘆𝗼𝘂 𝗹𝗼𝗼𝗸 𝗮𝘁 𝘁𝗵𝗲 𝗱𝗮𝘁𝗮 𝗼𝗻 𝗵𝗲𝗮𝘁 𝗽𝘂𝗺𝗽 𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻𝘀, 𝘄𝗲'𝗿𝗲 𝗻𝗼𝘁 𝗵𝗶𝘁𝘁𝗶𝗻𝗴 𝗺𝗮𝘀𝘀 𝗮𝗱𝗼𝗽𝘁𝗶𝗼𝗻.
With average install costs running at more than £13k, innovation to reduce cost whilst maintaining excellent installs should be applauded.
Business as usual is not going to cut it...
With average install costs running at more than £13k, innovation to reduce cost whilst maintaining excellent installs should be applauded.
Business as usual is not going to cut it...
Why?
Hydrogen has 1/3 the energy density of natural gas. Sites reported reduced power output, 2-6 year modification lead times, combustion instabilities, safety concerns from embrittlement/leakage, and increased NOx emissions.
Hydrogen has 1/3 the energy density of natural gas. Sites reported reduced power output, 2-6 year modification lead times, combustion instabilities, safety concerns from embrittlement/leakage, and increased NOx emissions.
October 21, 2025 at 10:34 AM
Why?
Hydrogen has 1/3 the energy density of natural gas. Sites reported reduced power output, 2-6 year modification lead times, combustion instabilities, safety concerns from embrittlement/leakage, and increased NOx emissions.
Hydrogen has 1/3 the energy density of natural gas. Sites reported reduced power output, 2-6 year modification lead times, combustion instabilities, safety concerns from embrittlement/leakage, and increased NOx emissions.
This "breakthrough" appears to use a brand new hydrogen-specific turbine installed last year - not existing infrastructure.
A govt-commissioned Arup survey of existing UK gas stations tells a different story: Almost all reported significant challenges accepting blended hydrogen:
A govt-commissioned Arup survey of existing UK gas stations tells a different story: Almost all reported significant challenges accepting blended hydrogen:
October 21, 2025 at 10:34 AM
This "breakthrough" appears to use a brand new hydrogen-specific turbine installed last year - not existing infrastructure.
A govt-commissioned Arup survey of existing UK gas stations tells a different story: Almost all reported significant challenges accepting blended hydrogen:
A govt-commissioned Arup survey of existing UK gas stations tells a different story: Almost all reported significant challenges accepting blended hydrogen:
In the plots below, I've summed up the total HDD for each year. I've then compared some 30 years periods (1940 to 1969 and 1995 to 2024). It's not just a little bit warmer in the winter. It's significantly wamer.
National parks chosen free from the 'heat island' effect that naysayers love.
National parks chosen free from the 'heat island' effect that naysayers love.
October 8, 2025 at 11:32 AM
In the plots below, I've summed up the total HDD for each year. I've then compared some 30 years periods (1940 to 1969 and 1995 to 2024). It's not just a little bit warmer in the winter. It's significantly wamer.
National parks chosen free from the 'heat island' effect that naysayers love.
National parks chosen free from the 'heat island' effect that naysayers love.
More evidence of gas leaks at Seabank Power Station
Why is £22bn of taxpayers' money being allocated to carbon capture when methane leaks are clearly not under control at our power stations?
Why is £22bn of taxpayers' money being allocated to carbon capture when methane leaks are clearly not under control at our power stations?
October 1, 2025 at 2:57 PM
More evidence of gas leaks at Seabank Power Station
Why is £22bn of taxpayers' money being allocated to carbon capture when methane leaks are clearly not under control at our power stations?
Why is £22bn of taxpayers' money being allocated to carbon capture when methane leaks are clearly not under control at our power stations?
This is a methane plume detected over a seabank power station. I had to extract this image via a freedom of information request.
Fossil fuel companies will tell you that they can safely bury carbon dioxide from burning gas. How? They're not even handling methane competently.
Fossil fuel companies will tell you that they can safely bury carbon dioxide from burning gas. How? They're not even handling methane competently.
September 25, 2025 at 3:14 PM
This is a methane plume detected over a seabank power station. I had to extract this image via a freedom of information request.
Fossil fuel companies will tell you that they can safely bury carbon dioxide from burning gas. How? They're not even handling methane competently.
Fossil fuel companies will tell you that they can safely bury carbon dioxide from burning gas. How? They're not even handling methane competently.
Yeah, a tad embarassing for me. I got told by someone else that it has indeed happened before, so I looked again at the data.
September 17, 2025 at 7:55 PM
Yeah, a tad embarassing for me. I got told by someone else that it has indeed happened before, so I looked again at the data.
Here's a church getting a heat pump.
This is my local church. I was married here. The graveyard is filled with names that I know. One day I'll probably join them.
Until then, I'll work on decarbonisation.
This is my local church. I was married here. The graveyard is filled with names that I know. One day I'll probably join them.
Until then, I'll work on decarbonisation.
September 8, 2025 at 2:25 PM
Here's a church getting a heat pump.
This is my local church. I was married here. The graveyard is filled with names that I know. One day I'll probably join them.
Until then, I'll work on decarbonisation.
This is my local church. I was married here. The graveyard is filled with names that I know. One day I'll probably join them.
Until then, I'll work on decarbonisation.
Oil and biodiversity follow the same discovery pattern.
When counting species in an ecosystem, the discovery rate slows as most species are found.
Oil exploration works identically.
When counting species in an ecosystem, the discovery rate slows as most species are found.
Oil exploration works identically.
September 3, 2025 at 3:51 PM
Oil and biodiversity follow the same discovery pattern.
When counting species in an ecosystem, the discovery rate slows as most species are found.
Oil exploration works identically.
When counting species in an ecosystem, the discovery rate slows as most species are found.
Oil exploration works identically.
Here we can see Cadent expertly addressing a gas leak... by throwing sand bags on it?🤪
August 26, 2025 at 2:17 PM
Here we can see Cadent expertly addressing a gas leak... by throwing sand bags on it?🤪
this all looks extremely hydrogen ready to me
August 15, 2025 at 11:18 AM
this all looks extremely hydrogen ready to me
𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗯𝗶𝗴 𝗺𝗶𝗴𝗵𝘁 𝗯𝗲 𝗵𝗮𝗽𝗽𝗲𝗻𝗶𝗻𝗴 𝗶𝗻 𝘁𝗵𝗲 𝘄𝗼𝗿𝗹𝗱 𝗼𝗳 𝗨𝗞 𝗴𝗮𝘀 𝗹𝗲𝗮𝗸𝘀
After decades of gas networks marking their own homework on leaks, we might finally get independent oversight. 🧵
After decades of gas networks marking their own homework on leaks, we might finally get independent oversight. 🧵
July 23, 2025 at 10:22 AM
𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗯𝗶𝗴 𝗺𝗶𝗴𝗵𝘁 𝗯𝗲 𝗵𝗮𝗽𝗽𝗲𝗻𝗶𝗻𝗴 𝗶𝗻 𝘁𝗵𝗲 𝘄𝗼𝗿𝗹𝗱 𝗼𝗳 𝗨𝗞 𝗴𝗮𝘀 𝗹𝗲𝗮𝗸𝘀
After decades of gas networks marking their own homework on leaks, we might finally get independent oversight. 🧵
After decades of gas networks marking their own homework on leaks, we might finally get independent oversight. 🧵
Post-Spending Review: Govt prioritises £9.4bn for CCUS, but 26% of UK gas is high-emission US LNG. Billions spent burying emissions, ignoring methane leaks & gas production damage in the USA.
Is our current gas network good at handling gases? Short answer: No.
Is our current gas network good at handling gases? Short answer: No.
June 13, 2025 at 2:27 PM
Post-Spending Review: Govt prioritises £9.4bn for CCUS, but 26% of UK gas is high-emission US LNG. Billions spent burying emissions, ignoring methane leaks & gas production damage in the USA.
Is our current gas network good at handling gases? Short answer: No.
Is our current gas network good at handling gases? Short answer: No.
Gas networks seem to already struggle with methane - so how can they hope to safely handle hydrogen?
Here's a plot of reported gas leaks overlaid with the proposed hydrogen network.
Food for thought for the residents of Newcastle, Middlesbrough, or Bishop Auckland.
Here's a plot of reported gas leaks overlaid with the proposed hydrogen network.
Food for thought for the residents of Newcastle, Middlesbrough, or Bishop Auckland.
May 12, 2025 at 12:01 PM
Gas networks seem to already struggle with methane - so how can they hope to safely handle hydrogen?
Here's a plot of reported gas leaks overlaid with the proposed hydrogen network.
Food for thought for the residents of Newcastle, Middlesbrough, or Bishop Auckland.
Here's a plot of reported gas leaks overlaid with the proposed hydrogen network.
Food for thought for the residents of Newcastle, Middlesbrough, or Bishop Auckland.
Do you think the emissions for gas heating are solely from burning the gas delivered to your home?
Think again. Gas networks leak; as you can see in the footage.
1 million tonnes of carbon dioxide is equivalent to almost 600,000 return flights between London and New York.
Think again. Gas networks leak; as you can see in the footage.
1 million tonnes of carbon dioxide is equivalent to almost 600,000 return flights between London and New York.
May 8, 2025 at 5:04 PM
Do you think the emissions for gas heating are solely from burning the gas delivered to your home?
Think again. Gas networks leak; as you can see in the footage.
1 million tonnes of carbon dioxide is equivalent to almost 600,000 return flights between London and New York.
Think again. Gas networks leak; as you can see in the footage.
1 million tonnes of carbon dioxide is equivalent to almost 600,000 return flights between London and New York.
The world according to the Tony Blair Institute:
April 30, 2025 at 9:29 AM
The world according to the Tony Blair Institute:
This means that even if you're able to match supply with demand, in each trading block, there will be a power inbalance.
April 29, 2025 at 11:18 AM
This means that even if you're able to match supply with demand, in each trading block, there will be a power inbalance.
Does the electricity market by design induce frequency oscillations?
Think about it.
1) Demand is a continuous curve. It is inherently driven by random human behaviour.
2) Generation is generally dispatched in blocks.
Think about it.
1) Demand is a continuous curve. It is inherently driven by random human behaviour.
2) Generation is generally dispatched in blocks.
April 29, 2025 at 11:18 AM
Does the electricity market by design induce frequency oscillations?
Think about it.
1) Demand is a continuous curve. It is inherently driven by random human behaviour.
2) Generation is generally dispatched in blocks.
Think about it.
1) Demand is a continuous curve. It is inherently driven by random human behaviour.
2) Generation is generally dispatched in blocks.
Here's a zoomed section of Cardiff's gas leaks over 2 years from 2023 to 2025. Gas engineers look very busy don't they?
April 25, 2025 at 12:38 PM
Here's a zoomed section of Cardiff's gas leaks over 2 years from 2023 to 2025. Gas engineers look very busy don't they?
𝗙𝗼𝘀𝘀𝗶𝗹 𝗳𝘂𝗲𝗹 𝗯𝗼𝗶𝗹𝗲𝗿𝘀 𝘄𝗲𝗿𝗲 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗲𝗱 𝗶𝗻 𝗼𝘃𝗲𝗿 𝟭𝟮𝟬,𝟬𝟬𝟬 𝗵𝗼𝗺𝗲𝘀 𝗱𝘂𝗿𝗶𝗻𝗴 𝗘𝗻𝗲𝗿𝗴𝘆 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲 (𝗘𝗣𝗖) 𝗮𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁𝘀 𝗶𝗻 𝟮𝟬𝟮𝟰.
Meanwhile, EPCs recommended 𝗭𝗘𝗥𝗢 heat pumps.
Meanwhile, EPCs recommended 𝗭𝗘𝗥𝗢 heat pumps.
April 17, 2025 at 1:34 PM
𝗙𝗼𝘀𝘀𝗶𝗹 𝗳𝘂𝗲𝗹 𝗯𝗼𝗶𝗹𝗲𝗿𝘀 𝘄𝗲𝗿𝗲 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗲𝗱 𝗶𝗻 𝗼𝘃𝗲𝗿 𝟭𝟮𝟬,𝟬𝟬𝟬 𝗵𝗼𝗺𝗲𝘀 𝗱𝘂𝗿𝗶𝗻𝗴 𝗘𝗻𝗲𝗿𝗴𝘆 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲 (𝗘𝗣𝗖) 𝗮𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁𝘀 𝗶𝗻 𝟮𝟬𝟮𝟰.
Meanwhile, EPCs recommended 𝗭𝗘𝗥𝗢 heat pumps.
Meanwhile, EPCs recommended 𝗭𝗘𝗥𝗢 heat pumps.
People in the community definitely noticed the smell and the disruption. Barham is over 1km away.
April 10, 2025 at 2:48 PM
People in the community definitely noticed the smell and the disruption. Barham is over 1km away.