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A very Finnish thing’: Big sand battery to store wind and solar energy using crushed soapstone

Posted on April 2, 2024April 2, 2024 by dishanth

The battery will be able to store a week’s heat demand in winter – how does it work?

A huge sand battery is set to slash the carbon emissions of a Finnish town.

The industrial-scale storage unit in Pornainen, southern Finland, will be the world’s biggest sand battery when it comes online within a year.

Capable of storing 100 MWh of thermal energy from solar and wind sources, it will enable residents to eliminate oil from their district heating network, helping to cut emissions by nearly 70 percent.

“It’s exciting to build a large-scale thermal energy storage, which will also act as a primary production plant in Pornainen’s district heating network,” says Liisa Naskali, COO at Polar Night Energy, the company behind the innovation.

“This is a significant step in scaling up the sand battery technology.”

Sand batteries are getting bigger in Finland

The new 1 MW sand battery has a precursor. In May 2022, Polar Night Energy rigged a smaller design to a power station in Kankaanpää town.

Launched just as Russia cut off gas supplies in retaliation for Finland joining NATO, the project was a timely example of how renewable energy could be harnessed in a new way.

Euronews Green previously spoke to the young Finnish founders, Tommi Eronen and Markku Ylönen, who engineered the technology.

“We were talking about how – if we had the liberty to design a community for ourselves – how could we solve the energy problem in such a confined environment?” Markku said of the inspiration behind Polar Night Energy in 2018.

“Then quite quickly, especially here in the north, you run into the problem of energy storage if you’re trying to produce the energy as cleanly as possible.”

The friends started playing around with ideas, landing on sand as an affordable way to store the plentiful electricity generated when the sun is shining, or the wind blowing at a high rate.

Finding a way to store these variable renewables is the crux of unleashing their full potential. Lithium batteries work well for specific applications, explains Markku, but aside from their environmental issues and expense, they cannot take in a huge amount of energy.

Grains of sand, it turns out, are surprisingly roomy when it comes to energy storage.

The sand battery in Pornainen will be around 10 times larger than the one still in operation at Vatajankoski power plant in Kankaanpää. The start-up also previously connected a pilot plant to the district heating network of Tampere city.

So how do sand batteries work exactly?

It’s quite a simple structure to begin with, Polar Night Energy said of its prototype. A tall tower is filled with low-grade sand and charged up with the heat from excess solar and wind electricity.

This works by a process called resistive heating, whereby heat is generated through the friction created when an electrical current passes through any material that is not a superconductor. The hot air is then circulated in the container through a heat exchanger.

The sand can store heat at around 500C for several days to even months, providing a valuable store of cheaper energy during the winter. When needed, the battery discharges the hot air – warming water in the district heating network. Homes, offices and even the local swimming pool all benefit in Kankaanpää, for example.

“There’s really nothing fancy there,” Markku says of the storage. “The complex part happens on the computer; we need to know how the energy, or heat, moves inside the storage, so that we know all the time how much is available and at what rate we can discharge and charge.”

How will the sand battery serve residents in Pornainen?

Having refined its charging algorithms, Polar Night Energy is now ready to scale up the storage tech in Pornainen.

Once completed, the new battery will be integrated with the network of Loviisan Lämpö, the Finnish heating company that supplies district heating in the area.

“Loviisan Lämpö is moving towards more environmentally friendly energy production. With the Sand Battery, we can significantly reduce energy produced by combustion and completely eliminate the use of oil,” says CEO Mikko Paajanen.

The project also aligns with Pornainen’s plans for carbon neutrality. Many of its buildings, including the comprehensive school, town hall, and library, rely on district heating.

Mayor of Pornainen Antti Kuusela says the municipality “welcomes all innovative development projects that reduce emissions in district heating operations and contribute to network expansion.”

In total, the sand battery is expected to knock off 160 tonnes of carbon dioxide equivalent emissions per year. As well as weaning the town off oil, woodchip burning is expected to drop by 60 per cent as a result.

The battery’s thermal energy storage capacity equates to almost one month’s heat demand in summer and a one-week demand in winter in Pornainen, Polar Night Energy says.

Construction and testing of the 13 metres high by 15 metres wide battery is estimated to take around 13 months, meaning it should be keeping residents warm well before winter 2025.

Is sand a sustainable material?

“We wanted to find something that can be sourced nearly everywhere in the world,” Markku said. But is sand as ubiquitous as we might think?

Demand for the construction material is set to soar by 45 per cent in the next 40 years, according to a recent Dutch study. Building sand is typically extracted from rivers and lakes, and ‘sand pirates’ are speeding up its loss from these ecosystems.

But as far as the Finnish engineers are concerned, it doesn’t really matter where the sand comes from. Though builders’ sand was used initially (to limit transport emissions), sand batteries work with any sand-like material that has a high enough density, within certain thermodynamic parameters.

In Pornainen, Polar Night Energy has found a sustainable material in crushed soapstone; a by-product of a Finnish company’s manufacture of heat-retaining fireplaces.

“Tulikivi is a well-known and traditional company,” says Naskali. “The soapstone they use is a very Finnish thing.”

“We always choose the thermal energy storage medium based on the customer’s needs. Examining and testing different materials is crucial for us to use materials that are suitable in terms of properties, cost-effectiveness, and promotion of circular economy,” she adds.

Polar Night Energy has big ambitions to take its technology worldwide.

As Markku told us back in 2022, “we want to build a hundred times larger storages around the world as fast as possible.”

Source euronews.green

Premier League Clubs Agree To Minimum Standard Of Environmental Action

Posted on February 13, 2024February 13, 2024 by dishanth

‘Underpin long-term environmental ambitions’

The Commitment outlines four operational measures, which will build on existing actions and provide a foundation to underpin long-term environmental ambitions. They are:

1. Develop a robust environmental sustainability policy, by the end of the 2024/25 season

2. Designate a senior employee to lead the club’s environmental sustainability activities

3. Develop a greenhouse gas (GHG) emissions dataset (scope 1, 2 and 3) by the end of the 2025/26 season and work towards a standardised football-wide approach to measuring emissions

4. Support the development of a common framework for action via the Premier League Sustainability Working Group (PLSWG)

The statement confirms that ‘the measures have been developed following extensive consultation with clubs and the Premier League Sustainability Working Group, which was established last year to help shape and inform environmental practices across the League.’

What impact will this have?

According to Sport Positive Leagues dataset (the latest update of which is in progress, out in March), the majority of Premier League clubs have an environmental policy or strategy in place. They range from a statement on the club’s website, to a large-scale breakdown of their activities, environmental footprint, reporting and ambition. Having a date in place for all clubs to have something robust in place is a strong step forward.

Designating a senior employee to lead the environmental sustainability activities is crucial, to ensure this stays on the agenda and is pushed forward. In Premier League clubs currently this ranges from head of sustainability and sustainability manager roles, to communications, facilities and operations.

Six Premier League clubs currently publicly share some or all of their carbon footprint – Manchester City, Liverpool, Tottenham Hotspur, Wolverhampton Wanderers, Nottingham Forest and Crystal Palace. Some clubs know their emissions footprint but don’t currently publicly report on scope 1, 2 and 3, beyond SECR regulations. Other clubs are earlier on in the journey of capturing data, but the majority are on the way to understanding their baseline. Having a standardised football-wide approach will enable a level playing field.

The development of a common framework for action via PLSWG is an important commitment, as the power of collective and unified action in football is key to ambition, action and success at scale.

Source Forbes

Meta Powers Towards Net Zero with Carbon Removal Projects

Posted on February 7, 2024February 7, 2024 by dishanth

Any organisation worth their sustainability salt knows that reaching net zero emissions in operations alone is not enough

Decarbonization must extend beyond offices and factories to include Scope 3, from the emissions caused by suppliers to those created by employees.

For Meta, the world’s fifth-biggest tech company, this challenge is being met with ambitious targets and bold, meaningful action.

Having already hit net zero emissions in global operations in 2020, the social media giant now has its sustainability sights set on achieving net zero value chain emissions by 2030.

This is quite the challenge, given 99% of Meta’s carbon footprint came from Scope 3 in 2022 – and this continues to rise.

“We know that reaching net zero emissions across our value chain will not be an easy task,” Rachel Peterson, Vice President of Data Centre Strategy at Meta said in the company’s 2023 Sustainability Report.

“Right now, our Scope 3 emissions are increasing and will continue to do so as we work to support the global demand for the services we provide.”

Meta Tackles Hard-to-Abate Sectors with Carbon Removal Projects

Meta acknowledges that reaching this goal requires a significant shift in how it builds infrastructure and operates its entire business – and the 20-year-old company is prioritising efficiency and circularity in its business decisions and embracing low-carbon technology to operate with a lower emissions footprint.

For example, through its supplier engagement programme, Meta is working to decarbonise its supply chain and enable at least two-thirds of its suppliers to set SBTi-aligned reduction targets by 206.

However, there are some emissions from hard-to-abate sectors the Facebook owner knows will be difficult to reduce by the end of the decade.

And so to tackle this, Meta has turned to carbon removal projects, the third pillar in its high-level emissions reduction strategy.

In a white paper outlining its Net Zero Strategy, the company says investing in value chain emissions reductions projects is necessary to address sources it can’t directly influence – like companies or processes used to extract and process the copper in data centre hardware or mechanical electrical equipment.

“These projects offer a significant opportunity to decarbonise our business at pace and scale require to achieve our 2030 reduction target,” the paper states.

For Meta, a diverse approach to carbon removal that includes both nature-based and technological approaches is crucial – not only to ensure near-term climate impact but to support carbon removal solutions for the future.

This strategy involves the purchase of credits from projects that align with Meta’s principles, from reforestation to investment in direct air capture technology.

Nature-Based Solutions in Mitigating Carbon Emissions

Since 2021, the social media giant has supported numerous nature-based carbon removal projects, from Australia to Kenya, including increasing forest carbon stock of community ejido forests in Oaxaca and increasing stored carbon via protection of forests that provide habitat for mitigating salmon in California.

And demonstrating its continued commitment to investing in nature-based solutions to mitigate carbon emissions, Meta recently signed a major carbon credits deal for 6.75 million carbon credits with Aspiration, a leading provider of sustainable financial services.

These credits hail from a myriad of ecosystem restoration and natural carbon removal approaches, including native tree and mangrove reforestation, agroforestry, and the implementation of sustainable agricultural practices.

Meta’s role in the voluntary carbon market extends beyond purchasing credits from projects to supporting new project development through financing and encouraging the evolution of standards that bring more certainty to the market.

Among the ways Meta is driving development in the sector is through collaborative action that will “aggregate the resources of multiple companies to create rapid change at scale”.

This includes a collaborative pledge to develop carbon projects that centre Indigenous leadership.

Through 1t.org, the National Indian Carbon Coalition and Meta have pledged to support and promote a model of carbon projects that centre on the leadership, traditional ecological knowledge, and vision of Indigenous Peoples for themselves and their land.

Among other collaborative projects:

Participation in the Business Alliance to Scale Climate Solutions (BASCS), which provides a platform for businesses and climate experts to meet, learn, discuss and act together to improve climate solutions.
Collaboration with the World Resources Institute to develop a method to map forest canopy height↗ at individual tree-scale using a new Meta AI training model. We have mapped forest canopy in California and São Paulo, Brazil, and are making the data public and freely available

Meta’s Role in Scaling Carbon Removal Technologies

In further driving development in the sector, Meta joined forces with other big tech companies in 2022 to accelerate the development of carbon removal technologies by guaranteeing future demand.

While some say focusing on carbon capture is a distraction to the real goal of reducing greenhouse gas emissions, Meta argues that both emissions reductions and carbon dioxide removal are needed.

And climate science backs this up.

Scientists say removing the carbon emissions that we have already pumped into the atmosphere is necessary if we are to avoid the 1.5-degree rises in global temperature set out in the Paris Agreement.

Launched in 2022, Frontier is a US$925 million joint commitment between Meta, Stripe, Shopify, McKinsey Sustainability and Alphabet – more recently bolstered with four new companies – Autodesk, H&M Group, JPMorgan Chase and Workday – committing a combined US$100 million.

Frontier helps its member companies purchase CO2 removal via pre-purchase agreements or offtake agreements. The goal is to spur the development of a new industry by providing a novel source of funding that isn’t based on debt or equity investments, but on actual product purchases before the technology is fully available at scale.

So far, Frontier has spent $5.6 million buying nearly 9,000 tonnes of contracted carbon removal from 15 different carbon dioxide removal startups.

Among these, RepAir uses electrochemical cells and clean electricity to capture carbon dioxide from the air, while Living Carbon is a synthetic biology startup working on engineering natural systems to remove carbon dioxide.

With this strategy, Meta is helping to expand the voluntary carbon market, overcome barriers to scale, and at the same time achieve its own ambitious net zero goals.

Source

Mars on a Procurement Pathway to Net-Zero

Posted on February 1, 2024 by dishanth

Mars has published its open-source action plan to accelerate the drive towards achieving Net Zero emissions, including a new target to cut carbon in half by 2030 across its full value chain. The strategy also involves investing US$1bn over the next three years alone to drive climate action

The strategy incorporates an understanding of how supplier engagement, supply chain and procurement impacts their environmental footprint, as 80% of it comes from their inputs such as raw materials, packaging and logistics.

“The carbon footprint of our entire supply chain from farming through to the end of life of our packaging and everything in between is the same as that of a small country – Finland has almost exactly the same footprint,” explains Barry Parkin the Chief Procurement and Sustainability Officer at Mars Inc. “When we look at where our footprint was ten years ago, 70% or more of it is embedded in the goods or services we buy. So, procurement is therefore absolutely critical.”

This means the role of procurement, supply chain, and supplier engagement is integral to the company reaching their ambitious sustainability targets, and Parkin is acutely aware that means it is essential for them to do things differently. “Our job is to re-imagine and re-design supply chains so that they have a dramatically lower carbon footprint,” he says. “To put it another way, unless we change what we buy, or where we buy it or how we buy it we are not going to really change our carbon footprint. ”

Their roadmap involves removing approximately 15 million metric tons by 2030 and then another 15 million metric tons by 2050 when they reach net zero. Since 2015 Mars have already reduced emissions by 8%, whilst growing the business by 60%, showing that it is possible to decouple emissions from growth and success of a business.

Supplier relationships

As for any major organisation trying to address their sustainability strategy, it is impossible for Mars to make significant progress with their carbon footprint without the help and buy-in from their enormous supply networks.

“As a global company, we rely on suppliers across our value chain as essential partners in our journey to reach net zero,” says Parkin. “Like most companies, addressing our Scope 3 emissions is challenging because of their indirect nature and our lack of direct control or visibility. Only by working with our Tier 1 suppliers can we make progress with them on their own emissions and on their upstream emissions with our Tier 2 suppliers and beyond.”

Mars was a founding member of the Supplier Leadership on Climate Transition coalition, that is a dedicated body for instigating climate action through industry-wide supply chains. This allows companies like Mars to use their scale and influence to guide, mentor and train suppliers with emissions strategies and also celebrate their best practice.

This reflects the collaborative approach Mars is trying to adopt with all their stakeholders to reach their climate targets. “Suppliers that demonstrate substantial progress in reducing their environmental footprint are recognised and rewarded with additional business,” explains Parkin. “This metrics-driven strategy ensures that our suppliers have a significant role in our journey towards sustainability, aligning their efforts with our commitment to addressing the climate crisis.”

To achieve this relationship, Mars sets clear expectations for suppliers regarding emissions reduction, renewable energy adoption, and sustainable sourcing. They then incorporate those climate performance metrics into some of their biggest supplier’s evaluation criteria.

Recipe optimisation

For one of the global leaders in food products, pet supplies and confectionery, they are also able to leverage product design and ingredients into their net-zero strategy. Mars describes that as ‘optimising recipes’ and procurement is again integral in making that aspect of the plan a success.

“Our procurement team actively collaborates with suppliers to identify and source new ingredients in a way which lowers emissions and advances our sustainability goals,” says Parkin. “This collaborative approach helps improve our supply chain sustainability performance, including the procurement of ingredients that have a reduced carbon footprint.”

This approach of working closely with the suppliers who provide the ingredients, allows Mars to enhance their product offerings while at the same time finding new ways to reduce the emissions associated with the recipes.

Buying-in to the road map

Parkin is praising the positive reaction from their suppliers to the Net Zero Roadmap, but that is also because many of those partners have been on a sustainability journey with the company for a number of years, since setting out their first scope 3 targets for their full value chain back in 2017.

“Suppliers have expressed their appreciation for the transparency and specificity of our roadmap,” explains Parkin. “It has enabled them to better understand our expectations and how their contributions fit into the broader picture of achieving net zero emissions. The roadmap’s emphasis on collaboration and collective responsibility has resonated with our suppliers, fostering a spirit of partnership in our shared journey towards sustainability.”

The partnership allows procurement partners to take proactive steps in their organisations and strategies to address their emissions, and be part of a collective responsibility to finding both a sustainable future and a productive business relationship.

Aside from the influence such an ambitious net-zero strategy has on the culture and direction of a company like Mars Inc, it also creates a larger impression on other companies in their business ecosystem as other brands and businesses look to follow their lead.

Barry Parkin is aware of the value of that influence, and how their procurement and supply chain can help lead others to greater sustainable achievements.

“Global companies like Mars play an important role in shaping sustainability standards and advancing climate action at scale,” he explains. “Our influence extends across the globe, allowing us to inspire change on a wider scale. When companies set high sustainability standards, it encourages others in their industries to follow suit.”

He adds: “Companies like Mars have the resources, expertise, and innovation capabilities needed to pioneer sustainable practices and technologies.

“We can invest significantly in research and development, pilot groundbreaking initiatives, and implement sustainable solutions beyond the reach of smaller organisations. This proactive approach not only benefits the environment but also builds a positive reputation with environmentally conscious consumers and attracts like-minded partners.”

If a globally recognised brand like Mars can leverage their sprawling supply and procurement network for better environmental outcomes, it can only help to bring others on the same journey. “This ripple effect fosters industry-wide transformation, promoting a more sustainable future,” finishes Parkin. “If a business such as Mars can halve it’s footprint by 2030, that matters.”

Source Sustainability

Sustainable Cooling: Electrocaloric Cooling Breakthrough

Posted on January 30, 2024January 30, 2024 by dishanth

As heatwaves intensify across the globe, the demand for air conditioning and refrigeration skyrockets. The ballooning demand for cooling strains energy infrastructure and escalates emissions from vapor compression systems. These conventional refrigerators and AC units rely on greenhouse gases and inefficient mechanical compressors that have reached their efficiency limits. With little room for improvement, vapor compression technology cannot sustainably shoulder doubling cooling demands. Scientists urgently search for climate-friendly innovations before the warming world overheats.

In a breakthrough discovery, researchers at the Luxembourg Institute of Science and Technology (LIST) pioneer a radically different cooling approach harnessing the electrocaloric cooling effect. This phenomenon describes particular ceramic materials that heat up or cool down when electric fields flip on and off. By cleverly leveraging this conductivity toggle, the LIST team designed an assembly that can pump heat without noisy, energy-draining compressors.

Electrocaloric cooling is a fascinating phenomenon where certain materials experience a reversible temperature change when an electric field is applied. In simpler terms, you can directly use electricity to manipulate their temperature, creating a cooling effect. This opens up exciting possibilities for energy-efficient and environmentally friendly cooling technologies.

The regenerative system developed by LIST alternates layers of electrocaloric capacitors with liquid coolant. Switching an electric field pulls heat from the fluid into the capacitors, cooling the system. Cutting voltage then dissipates the heat, so the cycle repeats. The smooth back-and-forth between hot and cold replaces high-maintenance mechanical parts with solid-state reliability. Scientists calculate that electrocaloric cooling efficiency leapfrogs vapor compression refrigeration by directly shuffling heat instead of wasting effort compressing refrigerants.

Since fluids naturally stratify by temperature, no added energy input is required to cycle hot and cold. The passive electrocaloric cooling generator minimizes electricity demands by exploiting thermodynamics rather than fighting against them. With game-changing energy savings over traditional refrigerator designs, this electrocaloric cooling technology paves the way for truly sustainable cooling.

Seeking real-world integration, LIST researchers collaborate with manufacturing partners to develop prototypes. The original discovery featured a single electrocaloric part, which limited heat transfer speed. The current regenerator assembly overcame this by interleaving many capacitors with parallel coolant channels. This boosts heat pumping capacity for powerful, real-world performance. Ongoing enhancements also aim to lower costs and extend operating lifetimes to enable widespread commercialization.

While the immediate goal focuses on eco-friendly refrigeration, the applications likely won’t stop there. Any process generating unwanted heat could benefit from electrocaloric cooling technology. Air conditioners, electronics cooling, industrial processes and even solar energy storage represent prospective opportunities. Because electrocaloric cooling systems thrive when miniaturized, microchip-level cooling also offers possibilities for computing breakthroughs.

For example, electrocaloric cooling films could provide on-chip cooling for high-performance computer processors, enabling faster computing speeds. Electrocaloric cooling systems can also be used to condense water vapor in air conditioning and dehumidification applications. This could allow environmentally-friendly refrigerants like water instead of HFCs to be used in vapor compression HVAC.

Additionally, the flexibility of electric-powered cooling lends well to renewable energy integration and smart grid load balancing. Electrocaloric heat pumps powered by wind or solar electricity during times of excess generation could store thermal energy for later dispatch while synchronizing supply and demand on the grid. With materials and system configuration innovations, electrocaloric cooling technologies show promise for revolutionizing thermal management across many sectors.

Despite enormous promise, unanswered questions remain regarding large-scale manufacturing and durability. However, early indications suggest the regenerator’s simple solid-state design will prove reliable over long stretches. By dodging complex mechanical components, the approach naturally steers towards sustainability. Cooling demand will only climb higher as climate change continues, but creative solutions like the LIST electrocaloric cooling regenerator offer hope we can innovate our way to a cooler future.

Source Happy Eco News

Businesses aim to get green travel policies on track

Posted on January 17, 2024 by dishanth

New survey reveals four out of five SMEs intend to take steps to encourage employees to embrace lower carbon travel options.

Over 80 per cent of UK small and medium-sized enterprises (SMEs) intend to increase their support for lower carbon business travel through corporate travel policies and budgets for 2024.

That is the headline finding from a new survey of over 500 decision makers at businesses with fewer than 250 employees commissioned by Trainline Partner Solutions, the B2B arm of Trainline.

The survey found nine in 10 UK SMEs expect to boost travel expenditure this year, while 92 per cent expect to see levels of business travel increase.

However, at the same time 83 per cent intend to strengthen their travel policy and/or financial support to make it easier for employees to opt for lower carbon travel modes in 2024. Specifically, 48 per cent are planning to use rail more to help reduce their emissions from business travel.

The survey also found 52 per cent of respondents have already set targets for reducing their emissions from business travel – and of those SMEs that have no such goals, two-thirds think it is likely their company will set a target this year.

“Businesses are telling us they expect to both travel and spend more this year as business travel continues to rebound post-Covid,” said Andrew Cruttenden, general manager at Trainline Partner Solutions. “We’re seeing a clear signal that sustainability considerations are a growing factor in setting travel policies and budgets, and rail is a great way to reduce the carbon emissions for travel versus flying and driving. Carriers and travel partners must ensure they can meet this growing demand by innovating and investing in the right tech that helps make rail a simple and seamless option for business travellers.”

Most businesses have slashed travel-related emissions in recent years, after the covid pandemic triggered widespread use of video conferencing platforms. However, business travels are expected to continue to recover this year, prompting calls for businesses and policymakers to incentivise wider use of lower emission forms of travel.

For example, the Climate Perks campaign has called on companies to offer employees extra days off if they use rail for their holidays, while green groups have repeatedly called for businesses to eschew the use of short haul flights wherever rail offers a viable alternative.

However, efforts to encourage wider use of rail have been hampered by the relatively high cost of rail compared to flights, with a Greenpeace analysis last month pointing to how popular rail routes across Europe over the festive period were on average 3.4 times more expensive than equivalent flights.

As such, campaigners are continuing to call on governments to introduce new policies and taxes to curb the availability of short haul flights and tackle the price differential between rail journeys and flights.

Source – BusinessGreen

Low Carbon 3D Printed Homes – Lower Cost too

Posted on November 23, 2023 by dishanth

An emerging application of 3D printing technology is fabricating entire homes through additive manufacturing. Early adopters demonstrate that 3D printing residential buildings carry significantly lower embedded carbon than conventional construction methods.

By optimizing materials and printing processes, 3D home printing could provide affordable, efficient, low-carbon housing to growing populations if adopted at scale.

Also known as additive manufacturing, 3D printing builds structures by depositing materials layer by layer according to digital models. Concrete is typically extruded through a moving print nozzle onto a substrate, hardening upon deposition to gradually form walls and roofs of low carbon 3D printed homes.

Companies pioneering low carbon 3D printed homes include Icon, SQ4D, and Mighty Buildings. Their printed concrete or polymer designs streamline manual labor of framing, insulation, and finishing. Architectural designs are also easier to customize versus cookie-cutter manufactured units.

But the sustainability benefits are among the most significant advantages over current construction. Architect Sam Ruben, an early adopter of 3D printing for eco-homes, states that 3D printing can reduce lifecycle emissions by over 50% compared to standard building techniques.

Part of the savings comes from more efficient material usage. Conventional construction methods are wasteful, generating excessive scrap materials that go to landfills—3D printing deposits only the needed amount layer-by-layer, eliminating waste.

Printing also allows easier integration of recycled components like crushed concrete aggregate into prints, diverting waste streams. And lightweight printed structures require less embedded energy to transport modules. Optimized print geometries better retain heat as well.

But the biggest factor is speed – printed homes can be move-in ready in days rather than weeks or months. A standard SQ4D home prints in just 8-12 hours of machine time. Accelerated production means less energy consumed over the total construction period.

And speed has financial benefits, too, reducing the logistical costs of prolonged projects. Combined with simplified labor, 3D printing can cut estimated construction expenses up to 30%. Those cost savings make printed homes more accessible to low-income groups while stimulating large-scale adoption.

To quantify benefits, Mighty Buildings completed a life cycle assessment comparing their printed composite polymer dwellings against conventional homes. They estimated their product cut emissions by over one-third during materials and construction. Waste production dropped by over 80%.

Such data helped the company achieve third-party verified EPD declarations certifying their low carbon 3D printed homes. Mighty Buildings believes printed homes could eliminate over 440 million tons of carbon emissions if comprising 40% of California’s housing needs by 2030.

Despite advantages, barriers remain to limit widespread 3D printed housing. Printed buildings still require finishing like plumbing, electrical, windows, and roofing. Developing integrated printing around and including those elements will maximize benefits.

High upfront printer costs also impede adoption, though expected to fall with scaling. And building codes need updates to cover novel printed structures despite proven duribility. Some jurisdictions like California are pioneering efforts to add low carbon 3D printed homes as approved models in housing codes.

But if technical and regulatory hurdles are resolved, additive construction could offer meaningful emissions cuts. With global populations projected to add 2 billion new urban dwellers by 2050, low carbon 3D printed homes may become a go-to sustainable building technique, especially in growing developing countries.

The urgent need for dense, low-carbon housing solutions to accommodate global populations makes 3D printing’s advantages stand out. Printed homes advance from gimmick to viable strategy against climate change.

Eco-conscious homebuyers on a budget have a new choice – low carbon 3D printed homes made from low-carbon cement. A new housing tract in Round Top, Texas has introduced small dwellings printed using concrete that produces just 8% of the carbon emissions of traditional Portland cement manufacturing.

Habitat for Humanity last year unveiled its first low carbon 3D printed home in Williamsburg, Virginia. The project represented Habitat for Humanity’s first completed 3D printed home in the country.

By combining 3D printing techniques with more sustainable cement mixtures, homebuilders can reduce the carbon footprints of affordable printed housing even further.

Source Happy Eco News

The Green Revolution: Sharing Leading the Way

Posted on November 2, 2023 by dishanth

The Green Revolution: Sharing leading the way

In a world grappling with pressing environmental challenges, the call for sustainable solutions has never been more urgent. One such solution gaining rapid momentum is the sharing economy, a model that not only promotes resource efficiency but also leads us on the path towards a greener planet. The sharing economy actively encourages the sharing, renting, and borrowing of goods, services, and spaces, fostering a sense of community while simultaneously minimizing our ecological footprint. In this article, we explore why sharing and the sharing economy are indispensable for the planet and how they can shape a more sustainable future.

Resource Conservation

At the heart of the sharing economy lies its ability to optimize resource utilization. Sharing goods ensures that their lifespan is maximized, consequently reducing the need for overproduction. A prime example is the success of car-sharing services. Instead of each individual owning a car that remains idle for most of its life, car-sharing platforms enable multiple people to use the same vehicle, thus decreasing the number of cars on the road and the associated resource consumption.

Reduced Waste

In a world plagued by excessive waste production, the sharing economy provides a remedy by discouraging unnecessary consumption. Sharing platforms offer individuals access to items they need temporarily, effectively reducing the demand for single-use products. Tools, appliances, or clothing can be shared within a community, eliminating the need for every individual to buy these items individually. This practice significantly reduces waste generation and lessens the environmental impact linked to manufacturing and disposal.

Energy Efficiency

The sharing economy also champions energy efficiency by encouraging the utilization of existing resources rather than the creation of new ones. Home-sharing platforms, for instance, enable homeowners to rent out their unused spaces, be it an extra room or an entire house. By making use of existing housing infrastructure, we optimise energy consumption in contrast to constructing new buildings. Furthermore, these platforms incentivise homeowners to invest in energy-efficient practices and technologies, such as renewable energy systems or energy-saving appliances, ultimately reducing carbon emissions.

Sustainable Lifestyles

Embracing the sharing economy fosters a shift in mindset from ownership to access. Instead of relentlessly pursuing possession, people begin to prioritize experiences and the efficient use of resources. This shift in consumer behavior can lead to a more sustainable lifestyle. When individuals recognize the value of sharing and collaboration, they become more conscious of their consumption patterns, opting for sustainable choices that benefit the planet.

Strengthened Communities

The sharing economy has a profound social impact as it brings people together and builds stronger communities. Sharing platforms often connect individuals living in close proximity, facilitating interaction and trust-building. When people collaborate, share resources, and support one another, a sense of belonging and shared responsibility develops. These communities often extend beyond the digital realm, fostering increased social cohesion and support networks.

Innovation and Entrepreneurship

The sharing economy has opened up avenues for innovation and entrepreneurship, particularly in sustainable sectors. It has given rise to new businesses and start-ups focused on sharing services, renewable energy, sustainable transportation, and circular economy practices. These ventures have the potential to create new jobs, drive economic growth, and contribute to a more sustainable future.

Leading the Way

Companies like RentMy enable people to “share” everything they own with others in their community. From paddleboards to canoes, DIY tools to garden equipment, musical instruments to cooking appliances, you can earn money from all the items that are just sitting around.

Tentshare and Camptoo do the same but for niched products like tents, camping equipment, and camper vans, allowing people to experience an adventure weekend without the significant upfront costs for all the equipment.

Then there’s Bike Club, a subscription service for bicycles that allows your child to upgrade each time they outgrow their ride. For adults, there’s Spinlister, which connects people who want to ride bikes with bike owners all over the world.

Next Steps

Without a doubt, the sharing economy is here to stay, largely because the benefits it offers are immense. It’s a sustainable choice, reducing the demand for brand-new products. It also promotes community, particularly those with a local focus. It can save and earn you money, with peer-to-peer lending offering an alternative to buying expensive equipment outright and also providing additional income to those renting out their assets.

But what truly drives this fast-growing economy is trust.

This is what allows someone to take a car ride from a stranger or rent a room in a house from someone they’ve never met.

How Do You Build Trust?

The article, aptly titled “The Decline of Serial Killers and the Rise of the Sharing Economy,” suggests that the internet has played a significant role in increasing trust between strangers.

Thanks to the fact that nearly all of us have a virtual identity these days, it’s challenging to go completely under the radar, reducing our fear of strangers.

This means we are more willing to engage with those we don’t know, seeing “strangers” as “peers.”

Businesses operating within the sharing economy are also employing various tactics to build upon this trust. For example, we encourage users to upload profile photos and write detailed profile descriptions that help identify them on a personal level.

We have also addressed concerns about the risk of damage. This has been a vital part of the development of RentMy. We provide extensive insurance protection for all those on our platform, allowing lenders to loan their items out risk-free, knowing that we will cover any damage or loss.

Final Thoughts

In a world increasingly aware of the environmental challenges we face, the sharing economy has emerged as a beacon of hope, leading the way towards a more sustainable future. It champions resource conservation, reduces waste, promotes energy efficiency, and encourages sustainable lifestyles. Moreover, it fosters stronger communities, fuels innovation and entrepreneurship, and ultimately drives positive change in our society.

Companies like RentMy, Tentshare, and Bike Club exemplify how individuals and businesses can play a pivotal role in this transformative movement. The sharing economy is not only here to stay but also set to thrive, offering a sustainable, community-driven, and financially rewarding path forward.

But, as we embrace the sharing economy, we must recognise that trust is its cornerstone. The internet has been a key enabler, reducing our fear of strangers and turning them into peers. Building trust involves transparency, identity verification, and addressing concerns, such as the risk of damage. At RentMy, we take these concerns seriously, offering comprehensive insurance protection to assure both sharers and renters.

Trust is the bridge that allows us to share with one another, and as we continue down this path, it’s a bridge that will only strengthen and lead us towards a greener, more interconnected world. So, as we take that car ride from a stranger or rent a room from someone we’ve never met, we are not just participating in the sharing economy; we are actively shaping a more sustainable, connected, and trust-driven future for all.

Source Happy Eco News

Honeywell & Recipharm to reduce greenhouse gas emissions

Posted on August 24, 2023 by dishanth

Honeywell and Recipharm have partnered to utilize technology to reduce greenhouse gas emissions in respiratory care and to lessen its environmental impact
Technology giant Honeywell has announced a commercial partnership with global contract development and manufacturing organisation (CDMO) Recipharm to develop pressurised metered dose inhalers (pMDIs) that use Honeywell’s near-zero global warming potential (GWP) propellant.

Globally, as many as 646 million people suffer from either chronic obstructive pulmonary disease or asthma, both of which are often treated using pMDIs. However, pMDIs have a high global warming potential due to the use of hydrofluoroalkanes.

To counter this, Honeywell Solstice® Air is an alternative technology, proven to reduce the greenhouse gas (GHG) emissions pMDIs by up to 99.9%, in comparison to current inhaler propellants.

“As the first CDMO to partner with Honeywell for the use of Solstice Air, this collaboration significantly accelerates and simplifies our customers’ pathway to develop the next generation of low greenhouse gas pMDIs,” said Chris Hirst, president of Recipharm’s Advanced Delivery Systems business unit. “Our collaboration is supported by Recipharm’s investment in manufacturing with HFO-1234ze(E) cGMP at our Holmes Chapel, United Kingdom site, and the further development of the Bespak® valve range to ensure the required product performance.”

Honeywell: Using technology to create sustainable change

The business has invested more than US$1bn in research, development and new capacity for its Solstice technology. This technology can be used to improve the sustainability credentials of applications in refrigerants, blowing agents, aerosols and solvents, to name a few.

Consequently, the Honeywell Solstice technology has helped avoid the potential release of more than 326 million metric tonnes of carbon dioxide into the atmosphere. This is approximately equal to the carbon emissions generated from 70 million gasoline-powered passenger vehicles each year.

“Honeywell is making great strides to offer patients who rely on pMDIs a lower greenhouse gas solution to meet their medical needs,” said Laura Reinhard, Vice President and General Manager of Honeywell Foam and Industrial Products. “Through our collaboration with Recipharm, the increased use of near-zero GWP propellant used in pMDIs will help reduce the environmental impact of the life-saving medical treatments patients need, without sacrificing performance.”

Source Sustainability

Using Bio-Based Materials to Build Cities

Posted on August 16, 2023 by dishanth

Did you know about 56% of the world’s population live in cities? The population numbers of urban dwellers are expected to double by 2050 when nearly 7 out of 10 people will live in cities. Cities are polluted due to industrial and motorized transport systems that rely on fossil fuels. The infrastructure that makes up cities is also constructed with carbon-intensive materials. As a result, cities account for over 70% of global carbon dioxide emissions.

We can’t eliminate these systems that make up our cities, but we can use bio-based materials to make them more sustainable. Carbon emissions could be significantly reduced if just a small percentage of new infrastructure in cities is constructed using sustainable bio-based materials. Moreover, these new buildings could also boost carbon storage and help us reach net zero.

Bio-based materials are catching on in the construction industry. They are materials that grow or are a natural part of the biosphere. Bio-based materials include Timber, straw, hemp, cork, clay, and earth. Besides being honest, these bio-based materials are renewable and have a lower, neutral, or negative embodied energy and carbon than traditional construction materials. Timber, for example, has around three times less embodied carbon than steel and over five times less than concrete.

The construction industry accounts for more than 39% of energy and process-related global carbon emissions. Using timber for building, it can store carbon rather than emit it. The Stockholm Wood City will be built in Sickla, Sweden, and is said to be the world’s biggest wooden city. Wooden construction means a significantly reduced climate impact during the construction phase and the whole life cycle. It also has a faster and quieter construction process.

Another bio-based material emerging in the construction industry is algae. Algae are being used in building facades as a sustainable way to generate heat and biomass for various purposes. The algae act like double glazing, but there is water and algae instead of air between the two panes. The algae will also absorb carbon dioxide and insulate the structure.

Hempcrete is a composite material made from hemp hurds, lime, and water. It is a strong, lightweight, and fire-resistant material that can be used for a variety of building applications, such as walls, floors, and roofs. Hempcrete is considered to be a carbon-negative bio-based material. It absorbs more carbon dioxide from the atmosphere than it produces during its production and use. Further, the production of hempcrete also requires less energy than the production of traditional building materials, such as concrete.

Because hempcrete is a good insulator, it can help to keep buildings cooler in the summer and warmer in the winter. This means that less energy is needed to heat and cool buildings, which reduces the amount of carbon dioxide that is emitted into the atmosphere.

Kenaf is a type of fiber that is made from the stems of the kenaf plant. It is a strong, durable, and lightweight fiber that can be used to make a variety of building materials, such as bricks, panels, and insulation.

Miscanthus is a type of grass that is grown for its biomass. It can be used to make a variety of building materials, such as boards, panels, and insulation.

Other benefits of using bio-based materials in the construction industry are that it helps to stimulate local economies, job creation, biodiversity and reforestation efforts. Using natural materials can help provide affordable and sustainable housing at scale.

While getting the entire construction industry on board with bio-based materials is challenging, some countries are trying to ensure this becomes the norm. The French government has ruled that any public construction financed by the state must contain at least 50% bio-based materials. Amsterdam requires that 20% of the city’s housing projects be constructed with bio-based materials starting in 2025.

As cities and population sizes grow, we will see a rise in carbon emissions. If the construction industry turns to using bio-based materials, there is a chance that we will see healthier cities and a healthier planet over time.

Source – Happy Eco News