The Anonymous Widower

Hydrogen In Aviation Offers Potential For Growth And Deeper Emissions Reductions, New Study Shows

The title of this post, is the same as that of this press release from Rolls-Royce.

These five paragraphs compose the press release.

Rolls-Royce, easyJet, Heathrow and University College London Air Transportation Systems Lab (UCL ATSLab) published a report highlighting how hydrogen-powered aircraft could enable European and UK aviation to cut carbon emissions while supporting future growth.

The study, Enabling Hydrogen in the European Aviation Market, found that hydrogen in aviation offers a unique opportunity to achieve both emissions reduction and market expansion. The analysis shows that introducing hydrogen alongside Sustainable Aviation Fuel (SAF) can accelerate progress towards net zero, particularly when policy incentives reward low-carbon fuels and if hydrogen were to be included within the EU’s SAF mandate.

The research also found that targeted hydrogen infrastructure at around 20 major European airports, including Heathrow, could deliver more than 80% of the emissions benefits of full hydrogen availability across the continent. Concentrating investment at key ‘hydrogen hubs’ would therefore provide a practical and cost-effective path to early adoption.

Further modelling indicates that the earlier novel technologies, such as hydrogen, can be introduced, the more opportunity they present for CO2 emission reductions, underscoring the value of early technological transition where it is financially and technically viable.

The study is underpinned by UCL ATSLab’s Airline Behaviour Model (ABM), which represents the complexity of airline decision-making through specific behavioural variables. Building on this, the research evaluates how fuel costs, incentives and new technologies shape airline responses. This provides a research-based, realistic picture of how hydrogen adoption could evolve, highlighting both opportunities and potential challenges for adoption.

Note, these two sentences recommending early adoption of hydrogen.

  1. Concentrating investment at key ‘hydrogen hubs’ would therefore provide a practical and cost-effective path to early adoption.
  2. Further modelling indicates that the earlier novel technologies, such as hydrogen, can be introduced, the more opportunity they present for CO2 emission reductions.

I also suspect, that introducing hydrogen early, feeds back  to reduce Co2 emissions.

But what is Trump’s considered view on hydrogen aircraft?

Google AI gives this answer to my question.

Donald Trump’s view on hydrogen for transportation, including potential use in aircraft, is highly skeptical due to perceived safety risks and effectiveness concerns, which generally aligns with his broader opposition to green energy initiatives. He has specifically criticized hydrogen-powered vehicles as being dangerous and “prone to blowing up”.

Note.

  1. I used to work in a hydrogen factory and it’s still producing hydrogen.
  2. I doubt Trump gets on well with Jennifer Rumsey, who is CEO of Cummins, who are one of the world’s largest diesel-engine companies, who are following a zero-carbon route.
  3. Is Formula One Likely To Go To Hydrogen Fuel?  This would set the Cat Among The Pigeons

I also feel that this University College London study will create a string of converts to hydrogen.

 

December 10, 2025 Posted by | Artificial Intelligence, Hydrogen, Transport/Travel | , , , , , , , , , , | Leave a comment

Is There A Connection Between Uncomplicated Pancolonic Diverticular Disease And Atrial Fibrilation?

I asked Google AI the question in the title of this post and received this answer.

Yes, there appears to be a potential connection, with some studies suggesting an association between diverticular disease and a higher risk of cardiovascular issues, though the link is not definitively established for uncomplicated pancolonic diverticular disease and atrial fibrillation specifically. Research indicates chronic inflammation in diverticular disease could be a contributing factor, increasing the risk for both cardiovascular disease and potentially atrial fibrillation. A case report noted a higher than expected incidence of vagal atrial fibrillation in patients with diverticular disease, but this association needs more robust study to confirm and understand its clinical implications

Is it relevant that I have both conditions?

Google AI cites this paper on National Institutes Of Heath, which is entitled Association of Diverticular Disease Of The Colon And Vagal Atrial Fibrillation.

I asked Google AI “What is Vagal Atrial Fibrillation?” and received this reply.

Vagal atrial fibrillation (AF) is a form of atrial fibrillation triggered by an overactive vagal nerve, which is part of the parasympathetic nervous system. It typically occurs at rest or during sleep and is associated with high physical activity, such as in athletes, and can be sparked by factors like large meals or alcohol consumption. Diagnosis relies on electrocardiogram (ECG) findings showing vagotonia and clinical context. Treatments include lifestyle changes, medications with anticholinergic properties, and catheter ablation to target the ganglionated plexi responsible for the arrhythmia.

I am not one for high physical activity, large meals and I don’t consume much alcohol.

The original paper cites this second paper on National Institues of Health, which is entitled Diverticular Disease Of The Colon And Gallstones In New Zealand And England.

This is the abstract of that paper.

The clinical presentation and subsequent treatment of 160 consecutive patients with proven diverticular disease of the colon from the Auckland Hospital, New Zealand were compared with 182 consecutive patients admitted to St. Bartholomew’s Hospital, London. There were significant differences in sex incidence, in the ages of the male patients at presentation, patient symptoms, extent of disease and methods of surgical treatment. These probably reflect differences in the types of National Health Services of the two countries, rather than differences in the natural history of diverticular disease of the colon. Overall, the 342 patients studied show a very good correlation with other large series published over the last 10 years. This study confirms the previously reported association between diverticular disease of the colon and gallstones. It confirms that gallstones are more common in female patients with or without diverticular disease. It suggests that Auckland patients with gallstones are more likely to have had a cholecystectomy than London patients. The possible role of dietary fiber in the aetiology of both gallstones and diverticular disease of the colon is discussed.

Note.

  1. I have had gallstones removed by endoscopy.
  2. They were removed in Homerton Hospital, which is linked to St. Bartholomew’s Hospital.
  3. I wrote about their removal in Goodbye To My Gallstones.

I was certainly male last time I looked, although I can’t father any children, as I’ve had a vasectomy.

 

September 26, 2025 Posted by | Health | , , , , | Leave a comment

US Interior Secretary: ‘No Future For Offshore Wind Under This Administration’

The title of this post, is the same as that of this article on offshoreWIND.biz.

This is the sub-heading.

US Interior Secretary Doug Burgum said at a press conference on 10 September that offshore wind has no future in the US under the Trump administration and that the government was reviewing five offshore wind projects that are now under construction.

There is also this quote from Burgum.

Offshore wind was too expensive and not reliable enough.

Many of those projects weren’t really about electricity, they were about tax subsidies

I think the fact that the subsidies have been either cut back or limited means that it is likely that there will not be future offshore wind built in America.

He also added that there were concerns that wind turbines interfered with whales and radar systems.

I asked Google AI a few questions.

Is Offshore Wind Extremely Expensive?

Google AI replied.

No, offshore wind is not considered extremely expensive when compared to other energy sources, particularly gas-fired power stations, and its costs are projected to fall further. While initially more expensive to construct than onshore wind due to the marine environment, the higher and more consistent wind speeds offshore generate more power, leading to a competitive or lower overall levelised cost of energy (LCOE) in many regions. Recent economic challenges like inflation and supply chain disruptions have increased costs temporarily, but the sector’s financial position is recovering, and cost reductions are expected to continue.

That looks pretty fair to me.

Is Offshore Wind Reliable?

Google AI replied.

Yes, offshore wind is a reliable energy source because it generates power more consistently than onshore wind due to higher, more dependable wind speeds at sea, and can be integrated with other renewables and energy storage to provide continuous power. Offshore wind turbines operate almost all the time, and the power can be backed up by grid-level storage to ensure a steady electricity supply, even when the wind isn’t blowing.

That looks pretty fair to me.

Are Subsididies And Tax Breaks Important For Offshore Wind?

Google AI replied.

Yes, subsidies and tax breaks are important for the offshore wind industry, which faces high upfront costs and inflationary pressures, to make it more cost-competitive with fossil fuels and secure financing for projects. These incentives help reduce costs for developers, de-risk investments, and ensure the technology can meet climate targets by fostering investment and ensuring long-term viability.

That looks pretty fair to me, but if you were in the oil and gas industry you might think differently.

On the other hand some countries like Norway and the UK, are encouraging the linking of offshore wind farms to offshore oil and gas production to decarbonise offshore operations.

Does Offshore Wind Kill Whales?

This article on the BBC is entitled Fact-Checking Donald Trump’s Claim That Wind Turbines Kill Whales.

It goes into detail about Trump’s claims about wind turbines and marine life.

These are four paragraphs.

“We know what the main threats are to humpback whales: it’s very much the impact from things like fishing and ship strikes,” says Rob Deaville from the Zoological Society of London’s Cetacean Strandings Investigation Programme.

“To talk about wind farms being a problem takes away discussion around the very real threats that are a problem for those species.”

Many other areas with high numbers of wind farms have not seen an increase in whale mortality.

For example, the UK is home to the world’s four largest wind farms, but no humpback whale strandings there have been conclusively linked to the impact of those farms.

That looks pretty fair to me.

But because of our massive portfolio of offshore wind farms and top universities, who research the marine environment, the UK is in a unique position to expose fake science, that was made up on the back of a used envelope.

Does Offshore Interfere With Radar?

Google AI replied.

Yes, offshore wind farms can interfere with radar by reflecting radar signals, causing “radar clutter” or false echoes that can obscure real targets, like aircraft or ships, or create phantom images on a radar display. This interference, also known as a “blade flash,” can negatively impact air defense, air traffic control, and maritime navigation, leading to reduced accuracy and potential safety risks.

That looks pretty fair to me.

Have Wind Turbines Caused Any Air Accidents?

Google AI replied.

Yes, wind farms have caused air accidents, though they are rare. These incidents primarily involve light aircraft colliding with wind turbines or experiencing loss of control due to turbulence from turbine wakes. Examples include a pilot crashing near a wind farm due to turbulence and another fatal crash involving an aircraft hitting a turbine blade.

That looks pretty fair to me.

I learned to fly light aircraft in the 1970s and I remember being told about wake turbulence from airliners, which has been strong enough in some cases to flip an aircraft like a Cessna 150 upside down or into a spin.

What Are The CAA’s Rules For Flying Near Wind Turbines?

Google AI replied.

The primary CAA rule for flying near wind turbines is related to their visibility and safety, focusing on lighting requirements and potential hazards like turbulence. Structures 150 meters or higher require medium-intensity red lights. Pilots must avoid dazzling lights with their own, and wind turbine developers must assess and mitigate risks such as turbulence, radar interference, and impact on Instrument Flight Procedures (IFPs).

That looks like what I would have expected.

Conclusion

I have tried not to be selective with my evidence, but if you are there are reasons that could be used to ban wind turbines.

I am also happy to add any other questions.

 

September 13, 2025 Posted by | Energy, Environment | , , , , , , , , , | 4 Comments

I See My First Driverless Car

The pictures show the first driverless car, that I’ve seen.

It was happily going along the Balls Pond Road, where it stopped immaculately at the lights, at the junction with Southgate Road.

Recently, a pedestrian was killed at those lights by a truck. It looks like he didn’t understand the sequence of the lights and stepped out, when he shouldn’t.

As a Control Engineer, I have a feeling, that driverless cars will never live up to the hype.

July 30, 2025 Posted by | Computing, Transport/Travel | , , , , , , | 1 Comment

Singapore’s First Hydrogen-Powered Data Center Launched By DayOne Using SOFC Technology

The title of this post, is the same as that of this article on Fuel Cell Works.

These two bullet points act as sub-headings.

  • DayOne has broken ground on its first AI-ready hyperscale data center in Singapore, a 20MW facility set to be operational in 2026. The project integrates 100% renewable energy, SOFC-based hydrogen power generation, and cutting-edge hybrid cooling technologies.
  • Strategic partnerships with Sembcorp and NUS will drive green energy adoption and R&D in sustainable tropical data center innovation, aligning with Singapore’s AI and digital infrastructure goals.

This data centre and the companies and the technologies behind it, are certainly ones to watch.

The R & D and innovation behind it could allow data centres to be built in more tropical places than is currently possible.

July 28, 2025 Posted by | Computing, Energy, Hydrogen | , , , , , , | Leave a comment

Are Zero- And Low-Alcohol Beers Cutting Road Accidents?

In The Times today, there is an article, which is entitled Drink-Driving ‘Effectively Legalised’ As Number Of Breath Tests Falls, where these are the first three paragraphs.

Drink-driving has effectively been legalised due to plummeting rates of breathalyser tests and light punishments for offenders, campaigners have warned.

The number of breath tests conducted by police has fallen by more than 62 per cent over the past decade as dangerously inebriated drivers receive short bans.

In 2009, police carried out 647,380 breath tests, but by 2023, that figure had fallen to just 240,322.

This later paragraph, adds a few more statistics.

In 2002, 18 per cent of breath tests were positive, compared to 16 per cent in 2023, while the number of drivers prosecuted for drink-driving offences has significantly decreased. Convictions for drink-driving fell from 55,300 in 2012 to 40,292 in 2023, coinciding with the sharp decline in breath testing.

Note, that in both extracts the latest comparison date is 2023, whereas the earliest date is 2009 and 2002.

This analysis is not the full picture, as there are two big differences between drinking in 2002 or 2009 and 2023.

The first difference is that 2002 and 2009 are pre-Covid, but 2023 is post-Covid.

So did Covid alter our drinking habits, which could have perhaps meant more people drank at home?

The second difference is that in 2023, zero and low alcohol beer was readily available.

I don’t drive, after a stroke ruined my eyesight, but I do drink up to four bottles a day of 0.5 % real ale. The beer I drink has been regularly available since 2017.

I wonder how many nominated drivers are now drinking these beers?

A serious survey and analysis needs to be done.

June 24, 2025 Posted by | Food, Transport/Travel | , , , , , | Leave a comment

AI Forecast To Fuel Doubling In Data Centre Electricity Demand By 2030

The title of this post, is the same as that as this article in The Times.

This is the sub-heading.

International Energy Agency predicts that artificial intelligence could help reduce total greenhouse gas emissions

These are the first two paragraphs.

Data centres will use more than twice as much electricity by 2030 than they do today as artificial intelligence drives demand, the International Energy Agency predicts.

The agency forecast that all data centres globally will use about 945 terawatt-hours of electricity each year by 2030, roughly three times as much as the UK’s total annual demand of 317 terawatt-hours in 2023.

I am very much an optimist, that here in the UK, we will be able to satisfy demand for the generation and distribution of electricity.

  • Our seas can accommodate enough wind turbines to provide the baseload of electricity we will need.
  • Roofs and fields will be covered in solar panels.
  • SSE seem to be getting their act together with pumped storage hydro in Scotland.
  • I am confident, that new energy storage technologies like Highview Power with the packing of companies like Centrica, Goldman Sachs, Rio Tinto and others will come good, in providing power, when the wind doesn’t blow and the sun doesn’t shine.
  • Hopefully, Hinckley Point C and Sizewell C will be online and soon to be joined by the first of the new small modular nuclear reactors.
  • Hopefully, Mersey Tidal Power will be operating.
  • There will be innovative ideas like heata from Centrica’s research. The economical water heater even made BBC’s One Show last week.

The only problem will be the Nimbies.

April 11, 2025 Posted by | Artificial Intelligence, Computing, Energy | , , , , , , , , , , , , , , , , , | 4 Comments

Tea Removes Toxic Heavy Metals From Water, Study Suggests

The title of this post, is the same as that of this article on The Times.

This is the sub-heading.

The longer tea is steeped, the more contaminants are removed

These are the first three paragraphs, which give a flavour of the research.

A daily cup of tea may do more than just perk you up — it can also purge the water of toxic heavy metals, a study suggests.

Researchers found that tea leaves will trap lead, cadmium, and other unwanted contaminants during the brewing process. These metals bind to the leaves and remain there until they are thrown away.

Benjamin Shindel of Northwestern University, Illinois, who led the research, said that while other materials might achieve a similar effect, tea’s popularity made it unique. “What is special about tea is that it’s the most consumed beverage in the world,” he explained.

My late wife was a coffee drinker and I only have the odd cup of cappuccino, although, I do drink lots of zero-alcohol beer, hot chocolate and decaffeinated tea.

I would assume that from his name Professor Benjamin Shindel is quite likely to be Jewish.

So did he ask all his friends and relatives round for a tea party?

The Professor certainly wouldn’t have had to have stinted on the cakes, as they wouldn’t have got near the water, which was the real subject of the research.

But he wouldn’t have been short of volunteers to brew their favourite tea!

 

February 25, 2025 Posted by | Food, Health | , , , | Leave a comment

DOE Funds Research Into Long-Duration Energy Storage Using Lead-Acid Batteries

The title of this post, is the same as that of this article on Best Magazine.

This is the sub-heading

US federal cash is on its way to fund research into long-duration energy storage using lead-acid batteries.

These two paragraphs give more details.

A consortium backed by industry bodies Battery Council International and the Consortium for Battery Innovation, will conduct pre-competitive research aimed at improving lead battery performance. Companies participating in the consortium include Advanced Battery Concepts, C&D/Trojan, Clarios, Crown Battery, East Penn Manufacturing, EnerSys, Gridtential and Stryten Energy. The collaborating national laboratories are Argonne, Oak Ridge and Pacific Northwest (PNNL).

The $5 million award from the US Department of Energy, announced on 27 September, will support work to develop lead batteries capable of 10+ hours of storage with a pathway to $0.05/kWh levelised cost of storage by 2030.

Note.

  1. The companies involved have names that indicate they could be battery makers.
  2. The collaborating national laboratories are world-class Premier League players.
  3. Over the nearly fifty years, that I drove cars, lead-acid batteries improved a lot and there might be more to come.
  4. The last paragraph is ambitious, unless they know more than I do about lead-acid batteries. Which is likely!

This is also said in one of Highview Power’s news items.

Highview Power, the global leader in long-duration energy storage solutions, is pleased to announce that it has developed a modular cryogenic energy storage system, the CRYOBattery, that is scalable up to multiple gigawatts of energy storage and can be located anywhere. This technology reaches a new benchmark for a levelized cost of storage (LCOS) of $140/MWh for a 10-hour, 200 MW/2 GWh system. Highview Power’s cryogenic energy storage system is equivalent in performance to, and could potentially replace, a fossil fuel power station. Highview Power’s systems can enable renewable energy baseload power at large scale, while also supporting electricity and distribution systems and providing energy security.

The battery researchers are saying $0.05/kWh levelised cost of storage by 2030 and Highview Power are saying $0.14/kWh for the same parameter.

Could Elon Musk’s Relationship With Donald Trump Be The Fly In The Ointment?

Would Musk want research to go on, that might weaken the use of his lithium-ion batteries for stationary applications?

November 21, 2024 Posted by | Energy, Energy Storage | , , , , , | Leave a comment

No Birds Collided with Floating Wind Turbine Offshore Norway During Two-Year Monitoring Campaign

The title of this post, is the same as that of this article on offshoreWIND.biz.

This is the sub-heading.

Following over two years of ongoing monitoring, no bird collisions with the TetraSpar floating offshore wind turbine have been reported at the Marine Energy Test Centre (METCentre) in Norway.

These first three paragraphs give more details.

Since January 2022, the Norwegian company Spoor has mapped bird activity at the floating offshore wind turbine at METCentre, located about ten kilometres off the coast of Karmøy.

The extensive bird mapping is the first of its kind in Norway. The data collected provides a picture of which species pass by the turbines and how they move.

The cameras have captured over 21,000 bird passages since the monitoring began. The monitoring and analyses were conducted in collaboration with the Biodiversity Department at Multiconsult.

In Unique Study: Birds Avoid Wind Turbine Blades, I said this.

I must admit I’m not surprised, as I’ve landed a light aircraft many times with birds flying above the runway and I can’t remember ever hitting one. But I have seen several dive out of the way.

The two studies are both in Scandinavia, so are birds in that area genetically programmed to avoid wind turbine blades?

I found this page on BBC Science Focus, which is entitled How Many Birds Are Killed By Wind Turbines In The UK?

This was the first two paragraphs of the answer,

As wind energy has grown in popularity, reports of birds killed by wind turbines have become more common. Few studies have investigated the phenomenon, but estimates suggest that between 10,000 and 100,000 birds are killed by turbine blade strikes annually in the UK.

That’s a lot, but it’s worth noting that approximately 55 million birds are killed in the UK each year by domestic cats. Nevertheless, research suggests there may be ways to make wind turbines safer for wildlife. For example, a small-scale study in Norway found that painting one of the wind turbines blades black, reduced bird deaths by 70 per cent.

Perhaps British birds are more stupid than Scandinavian ones?

Or is it, that British moggies have learned to sit underneath wind turbines waiting for birds to fall out of the sky?

It looks like these are questions, that should be solved by more research.

October 24, 2024 Posted by | Energy, Environment, World | , , , , , , , , | 3 Comments