Tag: Sustainability

Sustainability-In-Tech : Tiny Particles Show Promise For Better Grape Harvests

Posted on by Paul Stradling

Researchers in Türkiye have used biodegradable nanoparticles to deliver a plant growth hormone to grapevines, producing heavier bunches and stronger berry attachment in a small trial that suggests a possible way to improve crop production and reduce food waste.

Why Does The Hormone Need Protection?

Farmers already use gibberellic acid, a manufactured version of a naturally occurring plant hormone, to influence flowering, fruit development and growth. In grape production, it can help increase berry size and improve the shape and weight of bunches.

However, the hormone breaks down readily when exposed to heat, light and certain chemical conditions. This can reduce its effectiveness and contribute to the need for repeated applications, increasing the resources required to achieve the intended result.

The researchers investigated whether enclosing the hormone inside tiny biodegradable particles could improve its delivery. Their study, published recently in the Journal of the Science of Food and Agriculture, examines how this approach affects Thompson Seedless grapes.

How Do The Particles Work?

The team used PLGA, a biodegradable polymer also used in medical drug delivery, to carry the hormone. The loaded particles measured approximately 218 nanometres across, making them far too small to see with the naked eye.

Instead of exposing all the hormone immediately, the polymer holds it within its structure and allows it to escape gradually. This controlled release is intended to protect the active ingredient and keep it available to the plant for longer.

Laboratory tests found that approximately 65 per cent of the enclosed hormone was released within 96 hours. That demonstrates gradual delivery under the test conditions, although it doesn’t establish exactly how the formulation behaves on vines exposed to changing weather.

What Did The Researchers Test?

The grape experiment took place in a glass greenhouse at Selçuk University in Türkiye. Researchers selected 24 flower clusters and divided them between four treatments, with six clusters in each group.

They compared untreated clusters with those receiving the hormone alone, empty nanoparticles or nanoparticles containing the hormone. Both hormone treatments used the same concentration, and each treatment was applied once at the start of flowering.

This makes the study useful for comparing the formulations, but it didn’t test whether farmers could use less hormone or spray less frequently. Despite references to field applications in the summary, the detailed methods describe a greenhouse experiment.

How Much Did The Grapes Improve?

Bunches treated with the loaded nanoparticles averaged approximately 301 grams, compared with 147 grams for those receiving the hormone alone. That represents the reported 104 per cent increase, while average bunch length rose from about 13 centimetres to 22 centimetres.

However, the statistical analysis should be treated with some caution. For example, although the nanoparticle group produced significantly heavier bunches than the untreated group, the paper didn’t really establish a statistically significant weight difference between the nanoparticle treatment and the hormone alone.

The results therefore suggest quite a promising improvement rather than conclusive proof that the formulation reliably doubles production. Larger trials would help establish whether the difference persists across growing conditions, seasons and grape varieties.

The researchers also reported increases of approximately 15 per cent in berry weight and 13 per cent in width compared with the hormone alone. These measurements concern the sampled fruit, rather than total output from a commercial vineyard.

Could It Reduce Food Waste?

The treatment also increased the force needed to detach grapes from their stalks by approximately 25 per cent compared with the hormone alone. Stronger attachment could matter commercially because grapes falling from bunches during handling and storage can reduce saleable produce.

However, the researchers measured attachment strength after harvesting, rather than following fruit through storage, transport and retail. Reduced food waste is therefore a potential benefit that still needs testing through the supply chain.

The researchers describe the approach as promising for the “more efficient use of agrochemicals”. Establishing its overall environmental value would also require examining manufacturing, energy use and what happens to the particles after application.

It’s worth noting also that biodegradability is relevant, but it doesn’t by itself demonstrate that the complete treatment has a smaller environmental footprint. The laboratory preparation involved solvents, centrifugation and freeze-drying, which would need consideration when developing an affordable commercial process.

What Does This Mean For Your Business?

For growers and food suppliers, the study suggests that improving how an existing treatment reaches a crop could be as valuable as developing a new active ingredient. The next step is evidence from larger trials measuring saleable harvests, treatment costs and losses after picking, so purchasing decisions can reflect practical results.

Businesses assessing sustainability claims should also ask what was actually measured. Heavier bunches, stronger attachment and biodegradable materials are encouraging findings, but none alone proves lower emissions, reduced chemical use or less waste. Those benefits need comparisons covering production, application and the journey from farm to customer.

The wider opportunity here is to make better use of resources already invested in growing food. If controlled delivery produces more usable fruit without adding disproportionate costs or environmental impacts, it could benefit both growers and buyers. This study provides a reason to investigate further, with commercial value depending on whether the improvements survive beyond the greenhouse.

Sustainability-In-Tech : Geothermal Plant Delivers Power After 23-Month Build

Posted on by Paul Stradling

Fervo Energy has begun commercial electricity generation at its Cape Station development in Utah, completing its first power facility in 23 months and demonstrating how underground heat could provide dependable renewable energy as demand for electricity grows.

GeoBlock

The first generating unit, which Fervo calls a GeoBlock, reached commercial operation on 30 September, one day ahead of its contractual deadline. It had connected to the grid six days earlier and achieved 33 megawatts of net output, meeting the production threshold required under its electricity supply agreement.

Commercial operation means the facility has moved beyond initial testing and is generating revenue under a power purchase agreement, a contract through which a buyer agrees to purchase electricity.

However, it seems this is just the first part of a larger development. Two further blocks are expected to bring Phase I to approximately 100 MW by January 2027, while an additional 400 MW is under construction for planned operation in 2028. Those later stages remain future commitments rather than electricity already available.

Why Is This A First?

Fervo describes Cape Station as the world’s first greenfield enhanced geothermal development to reach commercial operation under its supply contract, meaning a new facility built from scratch rather than an addition to an existing plant. The milestone builds on earlier work, including Fervo’s smaller Project Red, which has supplied electricity to the grid since 2023.

Cape Station takes that experience into a larger commercial development, showing how the technology could supply more electricity through purpose-built facilities. As chief executive Tim Latimer said in Fervo’s announcement, “No team has ever built a project like this anywhere in the world, and we did it ahead of schedule.”

How Does Enhanced Geothermal Work?

Conventional geothermal plants need underground hot water and rock that allows it to flow freely, which limits where they can be built. Fervo’s ‘enhanced’ approach makes more locations potentially suitable by using drilling techniques developed in the oil and gas industry, including drilling horizontally through hot rock and creating pathways for water to pass through.

Water is then pumped down into the rock, where it picks up heat before returning to the surface through separate wells. That heat is used to generate electricity, and the water is sent back underground to repeat the process, allowing the plant to draw energy from rock that would otherwise be difficult to use.

Why Does The Construction Time Matter?

Faster construction can obviously bring renewable electricity into service sooner and shorten the period during which developers spend money without earning revenue. Building in separate blocks also allows generation to begin while later sections remain under construction.

The 23-month figure needs some context, however, because it actually covers building and commissioning the first power facility. Cape Station’s exploration work began earlier, with Fervo announcing an exploration drilling groundbreaking in September 2023.

Fervo says it hopes to reduce future construction timelines to 18 months through repeated designs and lessons from earlier blocks. However, meeting that target will still depend on securing permissions, finding suitable underground conditions and connecting each plant to the electricity network, which Fervo acknowledges may lack the capacity needed to carry new power to customers.

Why Is This Important For Sustainability?

Geothermal’s main advantage is that underground heat is available through the night and during periods of low wind. Reliable generation from that resource could help electricity systems reduce dependence on fossil-fuelled plants when weather-dependent renewables produce less.

That is relevant to factories, hospitals and data centres, whose electricity needs continue outside sunny or windy periods. Geothermal could complement wind, solar and storage, making it easier to match cleaner generation with demand throughout the day.

However, low operational emissions don’t mean construction and operation have no environmental footprint. For example, drilling, steel, cement and equipment manufacturing require resources, while water use depends on the reservoir and cooling arrangements.

Pumping water underground can also cause movement in the surrounding rock and trigger earth tremors, so developers need to assess each site carefully and monitor conditions as they operate. The US Department of Energy has highlighted this risk, together with water use, as an environmental concern that geothermal projects must manage.

What Does This Mean For Your Business?

For UK businesses, Cape Station is evidence of some progress towards a broader supply of dependable renewable electricity, rather than an immediate offer of cheaper power. Its value will become clearer through sustained output, operating costs and successful delivery of later blocks, showing whether the approach can be repeated beyond an initial milestone.

When assessing electricity suppliers or data-centre sustainability claims, businesses should ask whether promised generation is operating, contracted or still proposed. They should also examine how supply matches demand over time, since buying enough renewable electricity across a year does not necessarily mean clean generation is available whenever operations need it.

The wider opportunity is to combine new energy sources with better use of existing resources. More dependable renewable generation could support electrification and reduce emissions, but efficiency remains valuable regardless of which technology supplies the grid. Businesses can prepare by understanding their demand, reducing waste and choosing energy arrangements supported by credible delivery evidence.

Sustainability-In-Tech: AI Boom Could Leave An E-Waste Trail Around Earth

Posted on by Paul Stradling

The expansion of AI could leave enough retired electronic equipment to fill shipping containers stretching six times around Earth, according to a new report warning that the technology’s environmental footprint extends far beyond electricity and water consumption.

What Has The Report Found?

The Basel Action Network (BAN), a non-profit organisation campaigning against toxic waste and irresponsible waste exports, estimates that AI-driven equipment retirements could total between 395 million and 617 million tonnes from 2025 to 2050.

To put that volume of waste into perspective, The Coming AI Waste Wave estimates that it would fill between 15 million and 23 million shipping containers, with a line of 20 million stretching roughly 244,000 kilometres, enough to circle Earth about six times!

However, how much of that equipment eventually becomes waste will depend on how quickly AI infrastructure expands, how often devices are replaced and whether older hardware is reused. The figures therefore show the potential scale of the problem if those assumptions hold, rather than the amount certain to end up in landfill.

Why Count More Than AI Chips?

Much of the discussion about AI hardware focuses on graphics processing units, or GPUs, the specialised chips used to train and run models. However, those chips need servers, networking equipment, electricity distribution, backup power and cooling systems to function.

BAN estimates that servers, accelerators and racks account for only 13 per cent of the equipment mass in its reference data centre. Across all five equipment categories, it calculates approximately 7,000 tonnes for a facility with 100 megawatts of capacity.

The report argues that overlooking this supporting infrastructure understates the eventual disposal challenge, explaining, “Counting servers alone is like estimating the scrap value of an automobile factory by weighing only the engines.”

This wider view matters because an upgrade can affect more than the computing hardware. For example, installing more powerful systems may also require changes to electrical connections and cooling, potentially displacing equipment that still works but no longer meets the facility’s requirements.

Why Might Equipment Be Replaced So Quickly?

It seems that BAN’s calculations assume that servers, accelerators and racks are replaced every 2.5 years on average, with networking equipment lasting 3.5 years, power distribution equipment eight years, and backup power and cooling systems five years. It’s worth noting that some of these timings come from industry sources and others are BAN’s own estimates, so they actually describe the replacement patterns used in the model rather than a schedule followed by every operator.

The concern is that pressure to keep up with newer AI systems could lead businesses to replace equipment while it still has some useful life left. That creates demand for more materials and energy to manufacture replacements, making it important to find another use for the outgoing hardware wherever possible and recycle it responsibly when reuse is no longer practical.

The Report Also Counts Phones And PCs

BAN also says it expects AI adoption to encourage people and businesses to replace computers, phones and telecommunications equipment sooner, adding to the waste generated outside data centres. For example, some new AI features need more powerful processors or extra memory, while others may simply tempt customers to upgrade even though their existing devices still work.

However, missing out on a new feature doesn’t make a device unusable, and many cloud-based AI services can still run through older equipment. How much extra replacement AI will cause is therefore difficult to predict, as BAN acknowledges in its report, saying “very little data exists to quantify this segment.” Its higher estimate actually includes upgrades driven by the appeal of new features, making consumer choices part of the projected waste total.

How Certain Is The Forecast?

The scale of BAN’s forecast also really depends on data-centre capacity continuing to grow by approximately 8.8 per cent a year through 2050. Sustaining that pace for decades would mean considerably more equipment being installed and eventually replaced, while the report’s own calculations show that slower growth would produce much lower waste estimates.

What happens to that equipment after replacement will also make a difference, because a server removed from one facility may still be suitable for less demanding work elsewhere. BAN says it plans to examine reuse, refurbishment and repurposing in a later instalment, leaving an important question about how much retired hardware could remain useful rather than immediately becoming waste.

That said, some companies are already working on this. For example, Microsoft has reported reusing or recycling 90.9 per cent of its servers and components in 2024, although combining those activities in one figure does not show how much equipment continued to be used. The wider picture is somewhat less encouraging, with the UN’s Global E-waste Monitor finding that only 22.3 per cent of e-waste generated worldwide in 2022 was documented as formally collected and recycled, highlighting how much work is needed even before AI adds to the volume.

What Does This Mean For Your Business?

For businesses, the practical starting point is to question whether an AI project genuinely requires new equipment. Purchasing decisions should really follow a demonstrated operational need, with repair, memory upgrades and reassignment considered before replacement. Keeping suitable devices in productive use can reduce both costs and demand for newly manufactured hardware.

When buying equipment or selecting cloud services, organisations should also ask about expected lifetimes, repairability, spare parts and what happens when systems are retired. A recycling claim is more useful when it explains how much equipment is reused, which materials are recovered and how downstream contractors are checked, rather than simply promising that nothing reaches landfill.

The report’s strongest message is really that sustainability planning must begin before purchasing and construction. Cleaner electricity can’t remove the material footprint of repeated replacement, while recycling alone can’t preserve all the value invested in making equipment. Businesses can act now by extending useful life and making end-of-use arrangements part of the original investment decision.

Sustainability-In-Tech : Could Seawater Supply Nuclear Fuel For 50,000 Years?

Posted on by Paul Stradling

US clean technology startup Fluxnium is developing a way to collect uranium from seawater, targeting a resource potentially large enough to support nuclear generation for tens of thousands of years while attempting to reduce the environmental damage associated with conventional mining.

Looking To The Ocean

Nuclear power can provide electricity with low emissions over its lifetime, but its fuel still needs to be sourced and processed. As countries consider expanding nuclear generation, securing uranium supplies without increasing environmental damage becomes part of the sustainability challenge.

However, the International Atomic Energy Agency estimates that the oceans contain approximately four billion tonnes of uranium. Although that resource is enormous, it’s actually spread through seawater at very low concentrations, making collection difficult and potentially expensive.

The 50,000-year figure given by Fluxnium shows the scale of the resource against assumed consumption, rather than a quantity the company has proved it can recover. Higher nuclear demand would change how long it could last, while the amount available economically remains a separate question.

How Would Fluxnium Collect It?

Fluxnium’s approach uses specially engineered polymer fibres that attract dissolved uranium as seawater moves past them. This is adsorption, meaning uranium attaches to the material, rather than being extracted by digging up and processing ore.

The fibres are deployed on offshore lines similar to those used by seaweed and mussel farms, then retrieved for processing and reuse. The company describes its approach as uranium “passively adsorbed from seawater on proven aquaculture infrastructure”.

After collection, the uranium is removed from the fibres and purified into yellowcake, a uranium concentrate sold into the existing fuel supply chain. It would still require further processing before use in a reactor, so the innovation concerns the source of the raw material.

What Is Different About This Attempt?

Scientists have actually researched uranium extraction from seawater for decades, and US national laboratories have already demonstrated fibres collecting uranium under natural seawater conditions.

Fluxnium is building on that work, focusing on fibre design, manufacturing and deployment to improve the economics. The company’s work to increase the surface area available to capture uranium could allow each deployment to collect more material. Reusing fibres could also spread their manufacturing cost across several collection cycles, provided they remain effective after processing and exposure to marine conditions.

The company’s website describes a “cost projected to match conventional mining”, which makes clear that competitiveness remains a projection. The evidence needed now is consistent performance and a credible total cost across offshore operations, processing and replacement materials.

The Importance Of Fuel Security

The appeal also reflects concerns about dependence on overseas uranium supplies. The US Energy Information Administration reports that “U.S. material accounted for 7 per cent of total deliveries in 2025”, demonstrating how heavily American nuclear operators relied on foreign-origin uranium.

However, that dependence shouldn’t automatically be presented as reliance on hostile countries. For example, Canada (which some would say is now regarded as a hostile country by the Trump administration) supplied 32 per cent of deliveries, Kazakhstan 28 per cent and Australia 15 per cent, giving a more balanced picture of the existing market.

The EIA also records a weighted-average purchase price of US$58.46 per pound in 2025, up 11 per cent from 2024. That figure combines different contracts, so it should not be confused with a current spot price or treated as directly equivalent to a startup’s projected production cost.

Better For The Environment?

Avoiding excavation and mine tailings, the waste left after processing ore, could reduce some impacts associated with conventional uranium mining. Collecting material through passive seawater flow could also avoid the energy needed to pump enormous quantities of water through a treatment plant.

However, passive collection doesn’t make the whole operation impact-free. For example, manufacturing the fibres, installing offshore equipment, operating vessels and processing the collected uranium all require resources, while marine deployments would need assessment for effects on habitats and other sea users.

A meaningful comparison would, therefore, need to cover the full production process and the amount of usable uranium delivered. It would also need to keep fuel extraction separate from electricity generation, because seawater sourcing would not remove the need to manage spent nuclear fuel.

What Does This Mean For Your Business?

For businesses seeking dependable low-carbon electricity, Fluxnium represents a possible improvement further up the energy supply chain. It is not an immediate source of cheaper power, and the size of the ocean resource shouldn’t influence purchasing decisions without evidence that the technology can deliver reliably and affordably.

The broader lesson is to examine where a sustainability innovation reduces harm and where it introduces new demands. A process that avoids mining may still consume substantial materials or energy elsewhere, so procurement teams should seek comparisons based on equivalent output, including maintenance, transport and waste management.

Successful development could give nuclear operators another fuel source while reducing pressure for some new extraction projects on land. For now, though, the important milestones are repeatable offshore results, independently assessed environmental performance and costs that hold up beyond trials, turning an impressive resource estimate into a practical contribution to cleaner energy.

Sustainability-In-Tech: Google Backs Cleaner Rice Farming

Posted on by Paul Stradling

Google has agreed to buy one million carbon credits from Indian startup Mitti Labs by 2030, funding changes to rice farming that could cut methane emissions and water use while testing how corporate climate spending can deliver measurable benefits beyond a company’s own operations.

Why Rice Farming Matters

Rice fields may seem far removed from Google’s data centres, but their contribution to global warming explains the connection. For example, when paddies remain flooded, oxygen levels in the soil fall, creating conditions in which microbes produce methane as they break down organic material.

Periodically draining and reflooding fields interrupts that process, reducing methane production while requiring less irrigation. Known as Alternate Wetting and Drying, or AWD, the technique already has an established research base, with careful management allowing farmers to conserve water without sacrificing their harvest.

For communities facing water shortages, maintaining food production with less irrigation could be as important as reducing emissions. However, farmers need control over water supplies and guidance on when to irrigate, because drying fields too far can put yields at risk.

What Has Google Agreed?

Announced on 10 September, the agreement will support the expansion of changed irrigation practices across approximately 100,000 hectares of smallholder farmland in India. Mitti Labs says the partnership could save 1.5 trillion litres of water by 2030, although that remains a projection rather than an achieved result.

Its website describes a four-year agreement (while its press release says five years), but both specify delivery of one million credits by 2030. Financial terms have not been disclosed.

Google describes it as “the largest publicly announced agreement to date” for purchasing credits from rice-methane reductions. Its announcement also confirms direct payments to participating farmers, connecting the financial incentive with changes in cultivation.

Why Methane Needs Attention

Methane remains in the atmosphere for much less time than carbon dioxide, but has a stronger warming effect over shorter periods, making reductions particularly valuable for limiting near-term warming.

As Mitti Labs co-founder Xavier Laguarta explains, “Reducing methane from rice farming is one of the most powerful levers we have to slow near-term warming.”

Two Figures Given

It’s worth noting here that Google is actually giving two figures for the expected climate benefit because methane has a stronger warming effect in the short term. Measured over 20 years, the benefit is equivalent to avoiding around three million tonnes of carbon dioxide, compared with one million tonnes when measured over 100 years, so these are two ways of describing the same benefit and shouldn’t be added together.

How Can The Savings Be Checked?

To check whether farmers are changing how they irrigate their fields, Mitti Labs combines satellite radar images with observations collected on the ground. This helps it track flooding, soil moisture and crop conditions across thousands of small farms, with its recent US$9.5 million funding round supporting further development of the technology and expansion into more farming areas.

Those observations help show whether the farming practices are being followed, but calculating how much methane has been avoided requires some further checks. For example, Isometric, a carbon-credit certification body with which Mitti Labs is registered, requires projects to monitor water levels and reduces the number of credits they can claim where uncertainty in the estimates could overstate the benefit.

For buyers, this means checking both how the project measures its results and whether the reductions would have happened without its funding, so they can judge whether their money is making a difference.

Does This Address Google’s Own Emissions?

The agreement comes as Google’s expanding infrastructure complicates its climate ambitions. Its 2026 environmental report records approximately 14.5 million tonnes of emissions under its “ambition-based” accounting measure for 2025, an increase of 18 per cent.

It should be noted here that preventing methane from entering the atmosphere doesn’t remove carbon dioxide already released by data centres or construction. Google acknowledges this, saying credits used to counterbalance emissions will either be matched against shorter-lived emissions or replaced with carbon removals when their atmospheric benefit expires.

How Effective Is Offsetting?

Google’s agreement raises a wider question about whether businesses can compensate for their own emissions by paying for reductions elsewhere. Supporters argue that deals like this fund changes to farming that might otherwise struggle to attract investment, while critics warn that offsetting can allow companies to claim climate progress while their own pollution continues to grow. The value therefore depends on whether the promised benefits are delivered and verified, and whether Google continues cutting its own emissions.

What Does This Mean For Your Business?

For businesses considering carbon credits, the agreement shows why the underlying activity deserves as much attention as the number purchased. For example, a credible project should explain how reductions are measured, why funding changes what happens and how participating communities benefit. Promised savings should remain clearly distinguished from verified results.

The broader sustainability opportunity here is to support changes that solve more than one problem. Reducing irrigation demand could help protect agricultural production in water-stressed areas while lowering emissions, giving food businesses and their suppliers reasons to examine farming practices within their own supply chains.

However, external projects should support continued work on a business’s own energy use, purchasing and operations. The strongest approach combines direct reductions with carefully assessed climate funding, then reports both clearly so customers can understand what has improved within the organisation and what its money has helped others achieve.

Sustainability-In-Tech : Solar Ambulance Passes Kenya Test

Posted on by Paul Stradling

A solar-powered mobile clinic (ambulance) developed by Dutch students has completed more than 800km of testing in Kenya, demonstrating how sunlight could power both the journey to remote communities and the medical equipment needed when it arrives.

Taking Healthcare To The Patient

For communities far from a hospital, reaching medical care can mean travelling for hours over difficult roads. Even arriving at a local clinic may not guarantee access to diagnostic equipment if the building has no reliable electricity.

Stella Juva was designed around those connected problems. Built by 23 students from Solar Team Eindhoven, working with Amref Health Africa, the vehicle carries equipment including an X-ray machine, ultrasound scanner, defibrillator and refrigeration for vaccines.

Although its developers describe it as the world’s first solar ambulance, it works more like a travelling clinic. Its purpose is to bring health workers, equipment and electricity to patients, rather than primarily carrying patients to hospital.

Tested In Kenya

By way of testing, during August this year, the team drove the mobile clinic / ambulance named ‘Stella Juva’ more than 800km through Kenya, including a six-hour journey over difficult roads to Mosiro, where the local health clinic has no electricity. Reaching places like this was central to the trial, which tested whether the vehicle could both withstand the journey and provide the power needed to make medical equipment useful on arrival.

According to the developers, the vehicle completed the route with relatively few problems, although a broken steering rod needed replacing, a repair that took half an hour. Once parked for medical testing with Amref, it generated more solar electricity than it consumed while all its onboard medical equipment was being used simultaneously.

For the team, that result seems to have demonstrated the potential to bring working diagnostic equipment to communities where a lack of power limits the care available. For example, team manager Mathijs van Gerven described the achievement as being able “to drive sustainably, but also to be able to provide fully independent care”, adding: “Especially in remote areas where energy is often scarce, this can make all the difference.”

How Sunlight Powers The Clinic

In terms of how the solar power for the vehicle works, panels on the roof collect energy while Stella Juva travels, with additional panels extending from its sides when parked. A battery stores electricity for use when sunlight is limited.

The arrangement gives parked time a practical purpose. For example, while health workers carry out examinations, the larger solar collection area can supply equipment and replenish stored energy, reducing dependence on a charging point or fuel delivery.

However, the reported electricity surplus applies to stationary medical testing. It should not be read as proof that the vehicle produces surplus energy throughout every journey or can maintain the same schedule regardless of weather, distance and demand.

Why This Matters For Healthcare

Reliable electricity is essential for refrigeration, diagnosis and many routine procedures, yet a 2023 report from WHO and partner organisations estimated that close to one billion people in low- and lower-middle-income countries were served by facilities with unreliable electricity or none at all.

For pregnant women, the consequences can include missing opportunities to identify complications early. Amref’s maternal and child health project lead Geoffrey Sadera explained in the team’s announcement: “In Narok, long distances and unreliable electricity still make quality healthcare difficult to access.”

Sadera suggested that one outreach visit could allow 30 to 40 pregnant women to receive ultrasound examinations within their own community. That illustrates the intended benefit, although no real patients were examined during this trial.

The estimate that approximately 200 people could have received care over two days was similarly a projection from the testing, rather than a count of patients treated.

Where The Environmental Benefit Comes From

Using sunlight for transport and medical equipment could reduce reliance on petrol or diesel vehicles and generators. Bringing services closer to communities could also reduce some patient journeys, although the project has not published a measured carbon saving.

It should be noted here that solar-powered healthcare itself isn’t new. For example, UNICEF supports solar refrigeration that keeps vaccines cold without a grid connection, while WHO identifies solar panels and battery storage as options for improving healthcare resilience and reducing polluting emissions.

What’s different about Stella Juva is that it combines those energy benefits with mobility. That said, its environmental performance over its lifetime will likely still depend on manufacturing, battery production, maintenance and how much conventional transport or generator use it replaces.

What Happens After The Trial?

The prototype is returning to the Netherlands, with the students seeking partners to explore further development. Turning it into a dependable service will require funding, trained staff, spare parts and arrangements for maintaining both the vehicle and its medical equipment.

Amref programme manager John Kutna said: “The solar ambulance would be quite useful in these locations.” Establishing how to provide that usefulness affordably and consistently is the next task.

What Does This Mean For Your Business?

For businesses considering sustainability investments, Stella Juva offers an example of renewable energy addressing an operational problem as well as emissions. Generating power where work happens can make services possible in places where fuel supplies or electricity connections are difficult to secure.

The useful part of the exercise is really the ability to assess energy, transport and service delivery together. Investment decisions still need realistic running costs and maintenance plans, but this trial shows why the value of cleaner technology can extend beyond energy savings to the services it enables.

There is also a question of where each pound invested delivers the greatest benefit. A mobile solar clinic could make sense for scattered communities, while a busy permanent clinic might benefit more from its own solar panels and battery storage. Businesses face similar choices, making it important to compare a new solution with simpler alternatives and judge success by the reliability, reach and quality of the service it supports.

Sustainability-In-Tech : Laser Mosquito Control Could Cut Chemical Use

Posted on by Paul Stradling

A portable device that uses LiDAR, radar, AI and a laser to detect and kill mosquitoes is now being sold commercially, raising a much bigger question than whether people will pay around US$1,000 to keep insects away from their patios and instead focusing attention on whether precision technology could eventually reduce our reliance on chemical mosquito control.

How Does The Laser System Work?

Chinese company Photon Matrix describes its product as the “world’s first portable laser mosquito air defense”, with separate infrared and blue-laser versions for indoor and outdoor use. The company says the system scans the surrounding area with LiDAR (a laser-based technology that measures distances and maps objects in its surroundings), measures the distance to the background and looks for changes caused by flying insects.

If an insect matches the expected characteristics of a mosquito, a galvanometer-controlled laser is directed along the same optical path to hit it. Photon Matrix says its six-metre system can detect flying insects between 2mm and 20mm moving at up to one metre per second, while power consumption is rated at no more than 20W.

The company describes the approach as “a clean, chemical-free solution” without sprays, odours or harmful residues. The infrared model is currently listed at US$988 and the outdoor blue-laser version at US$1,088, with both offered on a pre-order basis and delivery expected within 120 days.

Why Chemical-Free Mosquito Control?

Mosquito control is not simply about avoiding bites. Malaria alone caused an estimated 282 million cases and 610,000 deaths worldwide in 2024, according to the World Health Organization, with the African Region accounting for 94 per cent of cases and 95 per cent of deaths.

Chemical insecticides remain one of the most important defences, particularly through treated bed nets and indoor residual spraying, and any new technology would need to complement rather than displace proven public-health measures. However, resistance is now becoming a serious problem, with the World Health Organization (WHO) reporting pyrethroid resistance in 48 of 53 countries that supplied relevant data.

This makes the idea of targeting individual mosquitoes without repeatedly spraying chemicals particularly interesting from an environmental point of view. By identifying a mosquito before acting, the system could reduce unnecessary exposure for people, other insects and the wider environment, while also reducing reliance on the same insecticides over and over again.

Has Anything Like This Been Tried Before?

Photon Matrix isn’t the first company to explore using lasers to control mosquitoes. A larger system called the Photonic Fence, originally developed by US-based Intellectual Ventures, uses cameras and infrared light to spot insects flying through an area and a laser to target mosquitoes.

In tests published in Scientific Reports in 2024, the laser system was reported to be highly effective. When the laser was switched off, researchers recovered 38.3 per cent of the mosquitoes released into the test area, but when it was switched on, only 0.86 per cent remained. The system also detected nearby orchid bees without targeting them, suggesting it may be able to kill mosquitoes while leaving other insects alone.

Also, Australia’s World Mosquito Program, owned by Monash University, uses another chemical-free method by releasing mosquitoes carrying the naturally occurring Wolbachia bacterium, which makes them less able to spread viruses such as dengue.

Could Lasers Help In Africa?

The biggest potential benefit could be in Africa, where malaria remains a major health threat and where most of the world’s malaria deaths occur. If laser systems became cheaper, tougher and practical to run from solar power or batteries, they could eventually be tested around African homes, clinics, schools and other high-risk locations.

For now, though, there is no evidence that Photon Matrix has been tested as a malaria-control tool in Africa, or that a six-metre consumer device could reduce disease transmission across a community. Cost, reliability, safety, maintenance and the number of units needed would all have to be proven first.

What Does This Mean For Your Organisation?

For organisations looking at more sustainable pest control, the main opportunity is greater precision, because technologies such as LiDAR and AI can identify a mosquito before acting rather than treating a whole area with chemicals.

Using fewer insecticides could reduce contamination and limit harm to beneficial insects, although laser systems still require electricity, electronics and manufactured components, so their overall environmental impact would need to be properly assessed.

Photon Matrix could, therefore, be best seen as an early example of a wider move towards more targeted mosquito control, with the real sustainability potential depending on whether these systems can become affordable, independently tested and practical enough to complement proven methods.

Sustainability-In-Tech : How AI Could Help Planes Avoid Warming Contrails

Posted on by Paul Stradling

Google and the UK government are launching a £5 million trial using artificial intelligence and advanced weather forecasting to help aircraft avoid the atmospheric conditions that create persistent warming contrails over the North Atlantic, potentially reducing part of aviation’s climate impact without changing the aircraft themselves.

What Are Contrails And Why Do They Matter?

Contrails are the white lines that sometimes form behind aircraft when water vapour from jet exhaust freezes into tiny ice crystals in very cold air. Many disappear quickly, but under the right temperature and humidity conditions they can persist for hours, spread into larger cloud formations and trap heat that would otherwise escape from the Earth’s surface.

Google estimates that warming contrails account for roughly one third of aviation’s total climate impact. That makes them an attractive target to tackle because, unlike replacing aircraft fleets or developing new propulsion technologies, avoiding the worst contrails may require only relatively small changes to how existing flights are operated.

The Met Office says that two aircraft flying at slightly different heights can experience very different conditions, with one producing a persistent contrail while the other does not. Accurate forecasts could therefore identify troublesome layers of air before an aircraft reaches them.

How Will Operation Blue Skies Work?

The project between the UK government and Google, dubbed “Operation Blue Skies”, will operate in Shanwick airspace over the eastern North Atlantic, an area that accounts for around 5 per cent of global contrail warming. It is described as the world’s first state-backed trial to test contrail avoidance across an entire oceanic airspace rather than with individual airlines.

Google UK says it will develop AI models using satellite imagery, flight information and weather data to predict where strongly warming contrails are likely to form. The Met Office says it is developing a new contrail-impact forecasting capability, while NATS (the UK’s leading air traffic control provider) will use the forecasts during normal air traffic operations so selected aircraft can be asked to make relatively small altitude changes.

Google says: “Our AI-powered forecasts have enabled flight crews and air traffic controllers to make targeted adjustments that avoid contrail-sensitive regions while remaining within normal flight operations.”

A 30-Month Programme

The 30-month programme includes operational trials during the winters of 2026/27 and 2027/28. Around 10,000 flights are expected to pass through Shanwick during trial hours each year, although only a small proportion will be diverted so researchers can compare outcomes.

Why Use Weather Intelligence?

Contrail formation depends heavily on local atmospheric conditions, particularly temperature and humidity at cruising altitude. If those conditions can be forecast accurately enough, controllers may be able to move aircraft above or below the layers where persistent contrails are likely to develop.

Emma Corrigan, an aviation expert at the Met Office, said: “Every day, our forecasts help airlines, airports, air traffic controllers and pilots make informed decisions. Through this programme, we are exploring how those same weather and climate science capabilities could help address environmental challenges for aviation.”

The combination of AI and increasingly detailed atmospheric forecasting is therefore intended to identify precisely where intervention is worthwhile, rather than asking aircraft to make unnecessary changes throughout their journeys.

What About The Extra Fuel?

Avoiding contrails is not automatically beneficial because changing altitude can cause an aircraft to burn more fuel, increasing carbon dioxide emissions. The important question is whether the warming avoided by preventing a persistent contrail is significantly greater than the climate cost of the extra fuel used.

That trade-off is one reason independent scientific verification is built into the programme. Imperial College London and the University of Cambridge will assess the trial results, while the Met Office will help evaluate forecast performance and scientific uncertainties.

James Shapland, Head of Regulated Transport Services at the Met Office, said: “Our understanding of regional weather regimes will provide an important scientific basis for the trials, and developing a global contrail forecast capability aligns with our strategic work to support the aviation industry in managing its longer-term environmental impacts.”

A Complement, Not A Cure

Contrail avoidance will not remove aviation’s carbon emissions and is not being presented as a substitute for sustainable aviation fuel, more efficient aircraft or cleaner propulsion technologies. Its attraction is that it could provide a relatively quick operational improvement while those longer-term technologies continue to develop.

Google describes contrails as “one of the most urgent yet solvable climate challenges facing aviation today” and says the trial aims to provide a validated blueprint for reducing aviation’s climate impact through airspace management.

The £5 million programme is supported through the UK government’s Aerospace Technology Institute Programme, while Google is contributing £1.4 million in research expertise, engineering time and high-performance computing on a pro bono basis. Government grant funding goes directly to the academic, non-profit and aviation partners involved in the project.

What Does This Mean For Your Business?

The wider business lesson here is that sustainability improvements do not always require replacing existing infrastructure. For example, Operation Blue Skies is attempting to reduce environmental impact by combining better data, AI and operational decision-making around aircraft that would be flying anyway.

That principle can apply far beyond aviation, with businesses potentially finding some of the quickest gains by identifying where relatively small changes to scheduling, routing, energy use or operating procedures can prevent disproportionately large amounts of waste or emissions.

Operation Blue Skies also highlights the importance of measurement, because the project is designed not only to identify where an intervention could have the greatest effect, but also to independently assess whether the environmental benefit genuinely outweighs any additional fuel used. Businesses taking a similar approach to sustainability should therefore focus on changes whose overall impact can be measured, rather than adopting initiatives that appear greener in isolation but may deliver little real benefit.

If Operation Blue Skies succeeds, it could demonstrate that one of aviation’s significant climate effects can be reduced not by redesigning the aircraft, but by helping them fly through slightly different parts of the sky.

Sustainability-in-Tech : New Electric Aircraft Makes Record $5 Flight

Posted on by Paul Stradling

The largest battery-electric aircraft ever flown has completed its first successful flight, demonstrating that electric propulsion can now operate at something approaching commercial-airliner scale while highlighting both the enormous potential and the significant limitations still facing cleaner regional aviation.

A Record-Breaking First Flight

Heart Aerospace’s X1 demonstrator, developed by the Swedish-founded aviation company before it relocated its operations to the US, took off from Plattsburgh International Airport in New York on 12 August, completing a 27-minute piloted flight that included taxiing, take-off, climbing, manoeuvring and landing.

The aircraft is certainly substantial. For example, with a wingspan of a massive 106 feet, a length of 76 feet and a take-off weight exceeding 25,000 lb, Heart says the X1 is the largest battery-electric aircraft ever to have flown. During the test, it climbed to 1,100 ft above ground level while its all-electric propulsion system delivered more than one megawatt of power.

Heart’s Founder and CEO Anders Forslund said: “With the first flight of X1, Heart Aerospace has demonstrated electric flight at the scale of a commercial airliner.”

Perhaps the most eye-catching figure, however, is the energy bill. Heart says powering the entire flight required approximately US$5 worth of electricity, providing an intriguing glimpse of how electric propulsion could eventually change the economics of short-distance flying.

Why The US$5 Figure Matters

That US$5 should be treated carefully, since it represents only the electricity consumed during one demonstration flight rather than the total cost of operating an aircraft.

Airlines would still need to pay for pilots, maintenance, airport charges, battery replacement, insurance and the aircraft itself. However, energy represents a significant operating expense in aviation, while jet-fuel prices can fluctuate considerably with global oil markets.

Electricity could potentially make part of that cost both lower and more predictable, particularly on the short regional journeys for which Heart is developing its technology.

Heart expects its eventual commercial aircraft to reduce operating costs by more than 40 per cent compared with older regional aircraft, citing cheaper energy, simpler electric propulsion requiring less maintenance and improved aircraft reliability among the reasons.

The Environmental Opportunity

The potential sustainability benefits are equally important, particularly because aviation remains one of the harder sectors of the economy to decarbonise.

Battery-electric aircraft can operate without burning jet fuel during flight, eliminating the associated direct carbon emissions from their electric operation. Where batteries are charged using increasingly renewable electricity, the overall environmental benefits could become more significant.

Regional aviation is a particularly interesting place to begin because many flights cover relatively short distances, yet conventional aircraft still need to burn fuel throughout those journeys.

Electric propulsion also offers the possibility of quieter aircraft, while lower operating costs could potentially make smaller regional airports and less heavily travelled routes commercially viable.

Forslund believes this could ultimately enable “more affordable, frequent, and cleaner air service to and from airports closer to home”.

The Big Battery Problem

Despite the successful X1 flight, batteries remain the fundamental obstacle preventing large commercial aircraft from simply swapping their jet engines for electric motors.

Jet fuel contains far more usable energy for its weight than today’s batteries, and weight matters enormously in aviation. Adding enough batteries to fly substantially further also makes an aircraft heavier, which in turn requires more energy to keep it airborne.

That explains an important distinction behind Heart’s programme. The X1 demonstrator that has just flown is entirely battery-electric, although the commercial ES-30 aircraft it is helping Heart develop will actually be hybrid-electric.

The 30-seat ES-30 is being designed to combine batteries and electric propulsion with a combustion-powered range extender, allowing Heart to pursue commercially useful regional routes without depending on battery improvements that have yet to arrive.

Rather than undermining the achievement, that compromise illustrates where electric aviation realistically stands today. Batteries can increasingly power larger aircraft, although their weight and energy density still limit the distances those aircraft can practically travel.

From Demonstrator To Airliner

Heart Aerospace, which was actually founded in Sweden but is now headquartered in Los Angeles, is already developing the first pre-production ES-30 at its pilot manufacturing facility in California.

Flight testing is scheduled to begin in 2028, with entry into commercial service targeted for 2031. The aircraft is being developed for certification under the same FAA Part 25 framework governing commercial airliners, meaning substantial testing and regulatory work still lies ahead.

There is certainly commercial interest, with Heart reporting customer commitments from airlines including United Airlines, Air Canada and JSX.

Michael Leskinen, Chief Financial Officer of United Airlines, said electric commercial aircraft have “real potential to deliver a better travel experience for passengers while strengthening our business”.

What Happens Next?

Turning a successful 27-minute demonstration into an aircraft carrying paying passengers will require considerably more than proving electric motors can lift an airliner-sized aircraft.

For example, Heart must successfully develop and test its pre-production ES-30, complete certification, demonstrate commercially acceptable reliability and convince airlines that its promised operating savings can be achieved in everyday service.

Battery development will also be a particularly important element. Improvements in energy density could allow future aircraft to travel further electrically without adding excessive weight, gradually reducing dependence on the combustion range extender and increasing the environmental benefits.

What Does This Mean For Your Business?

For businesses, Heart’s achievement provides an interesting example of how decarbonisation can increasingly be driven by economics as well as environmental targets. If electric propulsion genuinely reduces energy and maintenance costs, airlines could have a strong commercial reason to adopt cleaner aircraft rather than relying solely on regulation to encourage them.

The flight also demonstrates why sustainability breakthroughs need to be viewed realistically. The X1 has not solved aviation’s emissions problem, and Heart’s first commercial aircraft will still use fuel when its range extender is required. What it has demonstrated is that battery-electric propulsion can now operate successfully at a scale that would have seemed extremely ambitious only a few years ago.

The next stage will determine whether that engineering achievement can become a commercially viable aircraft. For example, if battery performance continues improving and Heart can deliver the reliability, certification and operating savings it is promising, electric propulsion could begin making some of aviation’s shortest journeys cleaner long before completely electric long-distance flight becomes practical.

Sustainability-in-Tech : Solar Sets New UK Record

Posted on by Paul Stradling

Britain generated more electricity from solar power than ever before in July, underlining how rapidly renewable energy is becoming a mainstream part of the UK’s electricity system while strengthening energy security and helping reduce dependence on fossil fuels.

A Record Month For Solar

Solar energy supplied a record 14.4 per cent of Great Britain’s electricity during July, comfortably surpassing the previous monthly record of 12.4 per cent, which had been set only two months earlier.

According to data from the National Energy System Operator (NESO), solar generation was also 50 per cent higher than in July last year, producing a total of 3.2 terawatt-hours of electricity during the month. The increase reflected a combination of unusually sunny weather and the continued rapid expansion of solar installations across the country.

Chris Hewett, Chief Executive of Solar Energy UK, said: “Fifteen years ago, solar energy was a footnote in the electricity mix. Now it is a major player, delivering home-grown, cheap, clean and reliable energy. It’s a success story that the whole nation should be proud of.”

More Panels, More Sun, And More Power

Whilst July was clearly extremely sunny and warm this year, Solar Energy UK is keen to highlight that the new record has not been driven by the favourable weather alone.

For example, official figures show that 142,536 new solar installations were completed during the first half of 2026, making it the busiest six-month period for new installations since the end of the Feed-in Tariff subsidy era. Most of these were domestic rooftop systems, reflecting growing consumer interest in generating electricity at home as energy prices remain a significant concern.

Commercial rooftop installations on warehouses, factories and supermarkets have also continued to expand, although many are not fully reflected in official installation statistics because they often fall outside the planning system. Together with larger solar farms, they have substantially increased Britain’s overall generating capacity.

The figures also seem to illustrate how the economics of solar have changed. For example, falling equipment costs, improved panel efficiency and stronger financial returns mean that many installations are now commercially attractive without relying on government subsidies.

Building A More Resilient Energy System

The record also highlights an important sustainability benefit beyond simply generating clean electricity.

Unlike fossil-fuel power stations, solar panels produce electricity without releasing carbon dioxide during operation while reducing the amount of imported gas needed to meet daytime electricity demand. Every additional unit of renewable electricity therefore helps improve both energy security and carbon reduction.

Julian Leslie, Strategic Energy Planning Director and Chief Engineer at the National Energy System Operator (NESO), which operates Great Britain’s electricity system, said: “These new records show the increasing power of solar. It’s hard to believe how far Britain has come over the past quarter of a century, with renewables now producing around 60% of our electricity – up from just 3% in the year 2000.”

He added: “Enabling low-carbon technologies like solar to play their part in our energy future is critical to helping us on our journey towards building a cleaner energy future.”

Growing investment in battery energy storage is also making solar more valuable by allowing excess electricity generated during sunny periods to be stored and used later, helping smooth fluctuations in renewable generation while reducing pressure on the electricity grid.

A New Chapter For Rooftop Solar

It’s worth noting here also that the growth of household solar looks set to receive another boost later this month.

From 27 August, new legislation will allow plug-in solar kits to be sold legally in the UK for the first time. Unlike conventional rooftop systems, these compact panels can simply be plugged into a standard household socket, allowing people living in rented accommodation or properties without suitable roofs to generate some of their own electricity without major installation work. The systems are expected to cost around £400 and could save households between £70 and £110 per year.

Although these systems did not contribute to July’s record, they represent another example of how solar generation is becoming accessible to a much wider range of households.

At the same time, larger utility-scale projects continue to expand. Britain’s largest operational solar farm, Cleve Hill in Kent, is already generating electricity, while even larger developments remain under construction, illustrating that growth is occurring across every scale of deployment.

What Does This Mean For Your Business?

For businesses, July’s record demonstrates that renewable electricity is becoming an increasingly important part of the UK’s energy infrastructure rather than an occasional supplement to conventional power generation. As solar capacity continues to expand, organisations are likely to benefit from greater energy security, lower long-term exposure to fossil-fuel price volatility and continued progress towards national carbon reduction targets.

The figures also reinforce the growing commercial case for on-site renewable generation. Falling installation costs, improving battery storage and rising electricity prices continue to strengthen the financial case for businesses to invest in rooftop solar, particularly for organisations with large warehouses, offices or manufacturing facilities that consume significant daytime electricity.

Britain’s latest solar milestone also illustrates how sustainability and economic resilience are becoming increasingly closely linked. Greater use of home-grown renewable energy not only reduces greenhouse gas emissions but also helps create a more diverse and resilient electricity system that is less exposed to global fuel markets, providing long-term environmental and economic benefits for businesses and consumers alike.