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Tag: carbon removal

Low Carbon 3D Printed Homes – Lower Cost too

Posted on by dishanth
Low Carbon 3D Printed Homes – Lower Cost too

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

Microsoft signs 10-year carbon removal deal with Climeworks

Posted on by dishanth
Microsoft signs 10-year carbon removal deal with Climeworks

The tech giant first announced an intention to source carbon removal solutions from Climeworks in January 2021, a year after pledging to achieve carbon-negative operations and supply chains by 2030. To achieve this 2030 goal, Microsoft – which is already carbon-neutral in operations – intends to halve emissions this decade and invest to offset and remove more carbon than it emits annually.

This week, Climeworks confirmed that it has entered into a ten-year purchase agreement with Microsoft. The investment in the deal has not been disclosed at this stage, but Climeworks claims it is “one of the largest” in the DAC space and will support the removal of “tens of thousands of tonnes of carbon dioxide from the atmosphere”.

“Microsoft’s multi-year offtake agreement with Climeworks is an important step towards realizing the ‘net’ in net zero,” said Microsoft’s chief environmental officer Lucas Joppa. “Our experience in purchasing renewable energy shows that long-term agreements can provide an essential foundation for society’s race to scale new decarbonisation technologies.”

 

Pictured: Climeworks’ Orca DAC plant in Iceland. Image: Climeworks

 

Other corporate supporters of Climeworks include Ocado, Swiss RE, Audi, LGT and Stripe, the latter of which is spearheading a collaborative private sector commitment on scaling carbon capture technologies. Called ‘Frontier’, the collaboration is backed by $925m of commitments to purchase carbon removals using man-made technologies this decade.

 

Technology scale-up

Climeworks currently operates 17 DAC plants, including one, Orca, which is operating on a commercial basis. Orca came online in September 2021 and is based in Hellisheiði, Iceland. Its CO2 removal capacity is 4,000 tonnes per year.

Last month, Climeworks confirmed plans for its 18th and largest plant to date – Mammoth, also in the same Icelandic region. The plant is expected to begin operations in either late 2023 or early 2024. In the first instance, it will have a CO2 capture capacity of 36,000 tonnes per year. Climeworks is aiming to scale to two megatonnes of capacity by 2030, laying the foundations for scaling to a gigatonne of capture capacity by 2050.

Climeworks’ technology works by drawing air into a collector with a fan. Inside the collector, CO2 is filtered out. When the filter is full, the collector is closed and heated to release the CO2, ready for concentration and storage by storage partner Carbfix. The carbon associated with developing and operating the DAC facilities, Climeworks claims, is typically equivalent to 10% of the carbon that will be captured. This calculation considers the fact that the facilities are powered by renewable energy.

Microsoft’s Joppa has called DAC “a nascent but crucial industry” to achieve the halving of net global emissions by 2030 and bringing them to net-zero by 2050 – the levels recommended by the Intergovernmental Panel on Climate Change (IPCC) for giving humanity the best chance to limit the global temperature increase to 1.5C.

Indeed, some climate scientists have concluded that large-scale carbon capture – whether man-made or nature-based – is needed at scale to avert the worst physical impacts of climate change due to historic and continuing emissions. The IPCC itself has stated that, by 2050, the world’s air-based carbon removal capacity should be 3-12 billion tonnes in a net-zero world.

However, as Joppa acknowledged, man-made systems are in their relative infancy commercially. Critics are concerned that they may not deliver their promised benefits and could be used as a means for businesses to avoid reducing their emissions in the first instance.

 

ETC report

In related news, the Energy Transitions Commission (ETC) has this week published a new report outlining its recommendations for scaling carbon capture, storage and utilisation (CCUS) technologies while ensuring that efforts around zero-carbon electricity and emissions reductions are not de-prioritised.

That report forecasts that, in 2050, the world will need 7-10 gigatonnes of CO2 capture. This is at the higher end of the levels recommended by the IPCC. Reaching this scale, the ETC argues, cannot be dependent on action in the mid or long-term – concerted efforts are needed this decade, with the backing of both public and private finance.

Overall, the ETC sees a “vital but limited” role for CCUS. Its report sets out how the carbon removals provided by these technologies should be prioritised for sectors which are hard to decarbonise, such as heavy industry, and should be scaled most rapidly in the sectors and locations where CCUS has an economic advantage over other decarbonisation solutions.

The ETC has been a vocal supporter of CCUS in recent years. In March, it released a separate report recommending that the global CCUS capacity reaches 3.5 billion tonnes annually by 2030.

 

 

Source Edie

XPRIZE and Musk Foundation announce guidelines and open registration for $100M XPRIZE carbon removal

Posted on by dishanth
XPRIZE and Musk Foundation announce guidelines and open registration for $100M XPRIZE carbon removal

XPRIZE, the global leader in designing and implementing innovative competition models to solve the world’s grand challenges, today announced the official launch of $100 Million XPRIZE Carbon Removal with the opening of team registration and the release of the competition guidelines. The announcement comes shortly after Peter H. Diamandis, XPRIZE founder and executive chairman, and Elon Musk sat down for a live stream hosted on Twitter to discuss the importance of spurring carbon removal solutions, the climate crisis, and the launch of the largest incentive prize in history. The conversation was followed by a virtual question and answer hosted by Marcius Extavour, vice president of climate and environment at XPRIZE, and XPRIZE’s chief impact officer, Zenia Tata.

Funded by the Musk Foundation, $100M XPRIZE Carbon Removal is aimed at tackling climate change by asking global innovators to develop solutions that can pull carbon dioxide directly from the atmosphere or oceans and lock it away permanently in an environmentally benign method.

 

 

The climate math is becoming clear that we will need gigaton-scale carbon removal in the coming decades to avoid the worst effects of climate change. The International Panel on Climate Change (IPCC) estimates the need at approximately 10 gigatonnes per year of net CO2 removal by 2050. As governments, companies, investors, and entrepreneurs make plans to meet this challenge, it is clear that we will need a range of solutions to be proven through demonstration and deployment to complement work that is already underway.

This four-year global competition invites innovators and teams from anywhere on the planet to create and demonstrate solutions that can pull carbon dioxide directly from the atmosphere or oceans. To win the grand prize, teams must demonstrate a working solution at a scale of at least 1000 tonnes removed per year; model their costs at a scale of 1 million tonnes per year; and show a pathway to achieving a scale of gigatonnes per year in future. All demonstrations must be validated by a third party. In the first of two competition phases, teams must demonstrate the key component of their carbon removal solutions at smaller scale, not the full operating solution. Fully operational solutions are required to win. Any carbon negative solution is eligible: nature-based, direct air capture, oceans, mineralization, or anything else that achieves net negative emissions, sequesters CO2 durably, and shows a sustainable path to ultimately achieving gigatonne scale.

 

“The goal of this CO2 Removal XPRIZE is to turn ideas into demonstration, and turn powerpoint solutions into hardware,” said Peter H. Diamandis, founder and executive chairman of XPRIZE.

 

“By launching the largest prize competition in history, our hope is to focus the brainpower of engineers, scientists and entrepreneurs around the world to build solutions that actually work, at low-cost and at massive scale. We know that our incentive prize competition models deliver huge philanthropic leverage. Typically driving 10x to 40x the prize purse spent by all the teams to achieve the goal. XPRIZE pays for demonstrated solutions versus ideas. So, we’re excited to see that same level of impact with this challenge. Many thanks to Elon Musk and the Musk Foundation.”

 

 

CLICK HERE TO WATCH FULL VIDEO

 

Throughout the competition, $100 million in prize purses will be distributed in the following manner:

Teams can enter the competition at any stage. XPRIZE is looking for the best solutions, whether they competed in earlier rounds or not. After 1 year of competition the judges will review the progress of competitors at that time and award up to 15 Milestone Prizes of $1 million each.

XPRIZE will also award up to US$5M to student teams in the Fall of 2021. These awards may fund participation in the XPRIZE Carbon Removal or the development of key supportive technologies.

In 2024, after developing their solutions, teams are invited to apply to be considered as Finalists, and be visited by XPRIZE to validate their solution’s performance in person. In 2025 after 4 years, judges will select the winners:

US$50 million paid to the single Grand Prize Winner
US$30 million to be distributed among up to 3 runners up

 

“It should be clear to everyone in 2021 that climate change poses an existential threat, and that our CO2 emissions are a leading cause,” said Marcius Extavour, vice president of climate and environment at XPRIZE. “Even as we race to get to net zero, the climate math tells us that we must also accelerate the development and deployment solutions that can be carbon negative. That’s what this prize is all about.”

‘’It’s not too late to create a better future, but doing that will take a group effort and companies facilitating the development of bold innovations. We’re looking forward to seeing what teams develop over the next four years and witnessing how their creations have a first hand impact on mitigating the climate crisis. Starting now.’’

For more information on XPRIZE Carbon Removal, to view the prize guidelines or to register, please visit xprize.org/carbonremoval.

 

About XPRIZE

XPRIZE, a 501(c)(3) nonprofit organization, is the global leader in designing and implementing innovative competition models to solve the world’s grandest challenges. Active competitions include the $20 Million NRG COSIA Carbon XPRIZE, the $10 Million Rainforest XPRIZE, the $10 Million ANA Avatar XPRIZE, the $5 Million IBM Watson AI XPRIZE, $5 Million XPRIZE Rapid Reskilling, $5 Million XPRIZE Rapid COVID Testing, and $500K Pandemic Response Challenge.

For more information, visit XPRIZE

 

About The Musk Foundation

The Musk Foundation creates grants are made in support of: renewable energy research and advocacy; human space exploration research and advocacy; pediatric research; science and engineering education; and development of safe artificial intelligence to benefit humanity.

 

 

Source Eco News