green techno – sustainable energy, products, production + technologies

Retrofitting giant sails could cut ships’ carbon emissions quicker than switching to alternative fuels such as hydrogen
green techno – sustainable technologies

> alt energy, domestic, solar ,wind

youtube.com/@ZirothTech 11-2022 Insane Rooftop Wind Turbine Halves Solar Panel Costs

>energy, co2, methanol

newscientists.com 4-11-2022 World’s largest plant for making methanol fuel from CO2 opens in China – The first commercial-scale plant for making methanol from carbon dioxide will save an estimated 500,000 tonnes of CO2 emissions a year compared with making methanol from coal – by Michael Le Page

“The world’s largest facility for converting carbon dioxide and hydrogen into methanol is now up and running in China….”…


>carbon capture, carbon storage, decarbonisation

france24.com 4-11-2022 CO2 capture and storage: Environmental lifeline or blank cheque for polluters?

…”…The French Institute of International Relations counted a record 76 CCS projects on the go in Europe in a 2021 report. … The market for CO2 capture and storage equipment is expected to quadruple over the next three years, reaching some $50 billion in 2025, according to Norwegian research firm Rystad Energy. Thanks to surging investment in Europe and North America, the CCS industry should be able to sequester 150 million tonnes per year, up from 40 million at present. This is nevertheless a drop in the ocean when compared to the 38 billion tonnes of CO2 emitted by humans in 2019…”…


> building, cement

dezeen.com 17-10-2022 Seratech carbon-neutral concrete wins Obel Award 2022 – by Rima Sabina Aouf

“British company Seratech has won the architecture-focused Obel Award with its prototype carbon-neutral concrete, which it says is low-cost and easy to scale. Founded by PhD students Sam Draper and Barney Shanks to commercialise their research at the Imperial College London, Seratech replaces part of the cement content of concrete with a type of silica created using carbon dioxide captured directly from factory flues.

Only a maximum of 40 per cent of the cement content of concrete can be replaced in this way. However, according to Seratech, the carbon capture and storage (CCS) involved to make the replacement material means that more carbon is stored in the concrete than is emitted in its cement production, making it overall carbon-neutral…”…

>energy

bbc.co.uk 20-10-2022 Can floating turbines harvest the world’s wind? By Justin Rowlatt

…”…This is not a passive structure, explains Greg Campbell-Smith, of Principle Power, the UK company that developed the platform technology. The floats need to adapt to changes in the wind and sea conditions. In strong winds the tower “heels” or leans away from the wind, says Mr Campbell-Smith. A network of pumps and valves shift liquid ballast between the three floating cylinders to rebalance the platform and set the turbine at the ideal angle for the wind. Below the surface, weighted subsea cables attached to huge anchors make sure the platform is firmly secured to the seabed…”…


thetimes.co.uk 10-2022 Europe hopes Finland’s new reactor will hail a golden atomic age

france24.com 13-10-2022 Finland hopes new nuclear reactor eases energy crunch

newcivilengineer.com 13-1-2022 Underwater turbines tipped to provide 10% of UK energy – By Catherine Kennedy

Undersea turbines could generate a tenth of Britain’s power in the future, according to a government-backed sustainable energy research company. Tidal stream energy uses turbines to extract energy from moving water in oceans and rivers, with UK waters holding around half of Europe’s tidal stream resource. Stephen Wyatt, director of of research and disruptive innovation at Offshore Renewable Energy Catapult (ORE) – which was established in 2013 by the government – said the 2020s could be a “golden decade” for the approach…”…


>products, electric

time.com 17-10-2022 How Schneider Electric’s CEO Made It One of the Most Sustainable Companies in the World – by

…”…Tricoire engineered Schneider’s transformation from a traditional electrical products merchant to a supplier of digital systems and solutions. Today, the 186-year-old multinational is at the forefront of digital automation and energy management, handling offices, homes, data centers, infrastructure and factories. Consistently ranked among the world’s most sustainable companies, Schneider is one of only 60 whose carbon neutrality objective has been certified by Science Based Targets initiative. Tricoire says 70% of Schneider’s turnover is green impact revenue, which participates in carbon reduction. …”…

sustainabilitymag.com 1-2022 In Focus: Schneider Electric’s massive environmental efforts

>products, textiles

bbc.co.uk/ 9-2022 Finland wants to transform how we make clothes By Maddy Savage


>green techno, re-use, circular, recycling

theverge.com 14-1-2022 Clean energy tech needs to be designed for recycling, experts say – Too many adhesives impede disassembly today – By Maddie Stone

Companies like Apple and Samsung aren’t the only ones making high-tech devices that are hard to take apart and recycle. So are the manufacturers of critical clean energy technologies like solar panels, wind turbines, and electric vehicle (EV) batteries — and unlike the consumer tech industry, which is slowly starting to reverse some of its unsustainable design practices, there isn’t much being done about it. …

“Design for recycling hasn’t really come to that market yet,” says Andy Abbott, a professor of chemistry at the University of Leicester who recently co-authored a review paper on de-bondable adhesives and their potential use in clean energy. Instead, Abbott says, manufacturers tend to “overengineer” their products for safety and durability. Take EV batteries, which are composed of anywhere from dozens to thousands of individual, hermetically-sealed cells glued together inside modules and packs. While the heavy use of adhesives helps ensure the batteries don’t fall apart on the road, it can make them incredibly difficult to take apart in order to repurpose individual cells or recycle critical metals like lithium, cobalt, and nickel. “At the moment, because everything is bonded together, lots of batteries end up getting shredded,” study co-author Gavin Harper, an EV battery recycling expert at the University of Birmingham in the UK, tells The Verge. “The material is mixed together, which makes subsequent steps in the recycling process more complicated.”…


>transport

thetimes.co.uk 4-2021 Attaching giant sails to cargo ships could slash their greenhouse gas emissions – by Graeme Paton,

…”…Fitting giant sails to cargo ships could reduce their greenhouse gas emissions by at least 30 per cent, research shows. Reducing speeds to use less fuel when the engines are running would cut emissions by a further 10 per cent, according to the Institution of Mechanical Engineers. The government should part-fund a demonstration ship using retrofitted sails as part of the UN Cop26 climate change conference in Glasgow in November to improve understanding of the potential of wind power, the institution said. The government announced this week that emissions from international shipping would be included in the UK’s climate change targets. However, the institution’s report said rapid action was needed to clean up shipping because of slow progress on the issue…”…