https://techxplore.com/energy-green-tech-news/ en-us The latest news on energy sciences and green technology, energy technology, energy renovation, alternative energy, and green energy. Aircraft flaps and emergency power units are part of efforts to reduce the aviation industry's contribution to global warming. https://techxplore.com/news/2023-07-greening-air-small-big-difference.html Energy & Green Tech Fri, 14 Jul 2023 01:53:00 EDT news608518352 A research team from Skoltech introduced a model to facilitate the planning stage of oil well development. It will help obtain important data about a well—for example, the model can compare a prospective well with those already functioning in the proximity to predict its oil-producing properties and improve well drilling. The study came out in IEEE Geoscience and Remote Sensing Letters. https://techxplore.com/news/2023-07-deep-oil.html Energy & Green Tech Thu, 13 Jul 2023 17:03:46 EDT news608486624 Manganese-rich NASICON-type materials have attracted widespread attention for developing advanced polyanionic cathodes, primarily driven by their abundant reserves, promising cycling performance, and potentially high operating voltage. https://techxplore.com/news/2023-07-strategy-nasicon-type-cathode.html Energy & Green Tech Thu, 13 Jul 2023 14:24:54 EDT news608477091 Perovskite solar cells (PSCs) have gained attention for their high power-conversion efficiencies and low-cost solution processing. However, ensuring their stability at high temperatures has been a challenge, as the points of contact between their different layers ("interfaces") are susceptible to degradation, leading to energy loss and decreased performance. https://techxplore.com/news/2023-07-high-temperature-stability-perovskite-solar-cells.html Energy & Green Tech Thu, 13 Jul 2023 14:00:01 EDT news608474768 A research team led by Prof. Ma Cheng from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has developed a new type of solid-state electrolyte. The study was published in Nature Communications. https://techxplore.com/news/2023-07-oxychloride-solid-state-electrolyte-lithium-batteries.html Energy & Green Tech Thu, 13 Jul 2023 11:35:02 EDT news608466901 Clean energy plans, including the U.S. Infrastructure Investment Act's "Clean Hydrogen Road Map," are counting on hydrogen as a fuel of the future. But current hydrogen separation technology is still falling short of efficiency and sustainability goals. As part of ongoing efforts to develop materials that could enable alternative energy sources, researchers in Drexel University's College of Engineering have produced a titanium oxide nanofilament material that can harness sunlight to unlock the ubiquitous molecule's potential as a fuel source. https://techxplore.com/news/2023-07-titanium-oxide-material-sunlight-green.html Engineering Thu, 13 Jul 2023 10:41:16 EDT news608463672 Food waste is a major problem around the world. In the United States, an estimated 30 to 40% of edible food is lost or wasted, costing billions of dollars each year. One potential solution is to divert food waste from landfills to renewable energy production, but this isn't done on a large scale anywhere. A new study from the University of Illinois Urbana-Champaign, published in the Journal of Cleaner Production, investigates the feasibility of implementing energy production from food waste in the state of Illinois. https://techxplore.com/news/2023-07-food-bioenergy-profitable-industry.html Energy & Green Tech Thu, 13 Jul 2023 10:37:30 EDT news608463444 Lithium is becoming the new gold, with rocketing use in lithium-ion batteries in electric cars, computers, and portable devices driving up the price and affecting the supply of the relatively rare metal. Scientists are on the verge of developing a way to use sodium to replace some of the lithium, so driving down costs and guaranteeing the supply. https://techxplore.com/news/2023-07-scientists-cheaper-lithium-batteries-sodium.html Energy & Green Tech Thu, 13 Jul 2023 10:25:11 EDT news608462707 Some homeowners looking to switch out their heating and cooling systems are turning to home geothermal—also known as ground source—heat pumps. It's a technology that relies on a simple physical fact: Dig several feet below Earth's surface, in the coldest winter or the hottest summer, and the temperature will be around 55 degrees. https://techxplore.com/news/2023-07-geothermal-energy-cools-home.html Energy & Green Tech Thu, 13 Jul 2023 10:19:21 EDT news608462354 In the future, climate-neutral hydrogen will play an important role as a fuel and raw material. Hydrogen is produced by electrolysis of water, either using an indirect approach in which an external energy source (solar panel or wind turbine) supplies the electrolysis cell with voltage, or using a direct approach: a photoelectrochemical cell in which the photoelectrode itself supplies the electrical energy for electrolysis (PEC cell). This direct approach would have some advantages, but is not yet competitive. https://techxplore.com/news/2023-07-solar-hydrogen-barriers-metal-oxides.html Electronics & Semiconductors Thu, 13 Jul 2023 09:29:24 EDT news608459361 Hong Kong will immediately ban the import of aquatic products from Fukushima and other Japanese prefectures if Tokyo discharges treated radioactive wastewater into the sea, a top official in the city said Wednesday. https://techxplore.com/news/2023-07-ripples-fukushima-hong-kong-japanese.html Energy & Green Tech Thu, 13 Jul 2023 03:59:05 EDT news608439539 When an electric vehicle is parked outside, its temperature can swing wildly from day to night and season to season, which can lead to deterioration of the battery. To dampen these fluctuations and extend the battery's lifespan, researchers have designed an all-season thermal cloak that can cool an electric vehicle by 8°C on a hot day and warm it by 6.8°C at night. The cloak, made predominantly of silica and aluminum, can do so passively without outside energy input and operates without any modification between hot or cold weather. This prototype is described July 11 in the newly launched Device, an application-oriented sister journal to Matter, Joule, and Cell. https://techxplore.com/news/2023-07-thermal-cloak-passively-electric-vehicles.html Engineering Thu, 13 Jul 2023 03:01:35 EDT news608436081 Lithium-ion batteries (LIBs), rechargeable batteries that store energy via the reversible reduction of lithium ions, are used to power countless devices and technologies, ranging from laptops and smartphones to electric cars. While LIBs have several advantages over other battery technologies, their current energy densities restrict the distances that electric vehicles can travel before they need to be recharged. https://techxplore.com/news/2023-07-scalable-method-prelithiate-anodes-lithium-ion.html Energy & Green Tech Wed, 12 Jul 2023 20:10:05 EDT news608221236 A common food and medicine additive has shown it can boost the capacity and longevity of a next-generation flow battery design in a record-setting experiment. https://techxplore.com/news/2023-07-next-generation-battery.html Engineering Mon, 10 Jul 2023 16:59:19 EDT news608227151 Unused solar, wind, and hydroelectric power in the U.S. could support the exponential growth of transactions involving non-fungible tokens (NFTs), Cornell Engineering researchers have found. https://techxplore.com/news/2023-07-unused-renewable-energy-option-powering.html Business Mon, 10 Jul 2023 16:18:03 EDT news608224679 High in the Austrian Alps, hundreds of construction workers toil in a huge underground project aimed at storing hydropower as climate change has reduced the country's water-dependent electricity production. https://techxplore.com/news/2023-07-climate-hydropower-dependent-austria.html Energy & Green Tech Sun, 09 Jul 2023 07:47:03 EDT news608107620 Inspired by kitesurfing, French firms want to deploy the same wind technology to propel everything from yachts to cargo ships in order to cut the shipping industry's massive carbon footprint. https://techxplore.com/news/2023-07-startup-kitesurf-shipping-pollution.html Energy & Green Tech Sun, 09 Jul 2023 07:44:20 EDT news608107452 Thyssenkrupp's green hydrogen unit Nucera made a strong debut on the Frankfurt stock exchange Friday, amid growing interest in the technology as an alternative to fossil fuels. https://techxplore.com/news/2023-07-thyssenkrupp-hydrogen-surges-stock-debut.html Business Fri, 07 Jul 2023 14:22:34 EDT news607958552 Offshore wind farms bring environmental benefits throughout their life cycle. This understanding emerges from a study published in the international journal Sustainable Production and Consumption in which researchers from Politecnico di Milano analyzed the potential environmental impacts of a floating offshore wind farm undergoing authorization off the coast of Sicily. https://techxplore.com/news/2023-07-offshore-farms-environmental-benefits-life.html Engineering Fri, 07 Jul 2023 14:00:03 EDT news607957201 While the industry consumes lots of trees and produces plenty of waste, grass packaging and new construction materials point toward a more sustainable path. https://techxplore.com/news/2023-07-grass-packaging-materials-plot-sustainable.html Energy & Green Tech Fri, 07 Jul 2023 11:38:39 EDT news607948713 University of California Berkeley researchers have designed an extreme-weather proven, hand-held device that can extract and convert water molecules from the air into drinkable water using only ambient sunlight as its energy source, a study published in Nature Water shows. https://techxplore.com/news/2023-07-portable-sun-powered-harvester-combat-scarcity.html Engineering Fri, 07 Jul 2023 09:39:22 EDT news607941557 Two teams of solar-power engineers, one led by a large group at Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, the other led by a group at École Polytechnique Fédérale de Lausanne, has found two ways to improve the efficiency of solar cells by getting silicon and perovskite to work together better. Both teams have published papers in the journal Science outlining the details of their work and the results of their testing. Stefaan De Wolf and Erkan Aydin, with the King Abdullah University of Science and Technology, have published a Perspectives piece in the same journal issue outlining the work done by both teams. https://techxplore.com/news/2023-07-methods-efficiency-solar-cells-silicon.html Engineering Fri, 07 Jul 2023 08:47:09 EDT news607938408 As Germany looks to a future without fossil fuels, a big white boxy appliance is generating a lively debate—and often a heated one—for its potential to replace emissions-heavy oil and gas boilers. https://techxplore.com/news/2023-07-germany-big-warmingheat.html Energy & Green Tech Fri, 07 Jul 2023 03:37:31 EDT news607919841 Plans to discharge treated water from the Fukushima nuclear plant cleared their last regulatory hurdle in Japan on Friday, as China said it would ban some food imports over the move. https://techxplore.com/news/2023-07-fukushima-regulatory-hurdle-japan.html Energy & Green Tech Fri, 07 Jul 2023 03:36:35 EDT news607919791 Gisele Azimi is bringing battery recycling to a new level, using captured carbon dioxide to harvest the precious metals used for green technologies. Azimi, a University of Toronto professor and the Canada Research Chair for Urban Mining Innovations, has pioneered a method to separate critical metals from electronic waste like batteries, and wind turbine materials. https://techxplore.com/news/2023-07-recycling-precious-metals-electronic-captured.html Energy & Green Tech Thu, 06 Jul 2023 16:46:11 EDT news607880769 Countries around the world are seeking innovative solutions to reduce carbon emissions while meeting energy security and economic development needs. From rooftop photovoltaics (PVs) to offshore wind, creative energy generation sources have solved challenges associated with typical renewable energy sources such as land use restrictions and geographical constraints. https://techxplore.com/news/2023-07-photovoltaics-emerge-solution-southeast-asia.html Business Thu, 06 Jul 2023 14:07:54 EDT news607871270 Solid electrolytes with high lithium-ion conductivity can be designed for millimeter-thick battery electrodes by increasing the complexity of their composite superionic crystals, report researchers from Tokyo Tech. This new design rule enables the synthesis of high-entropy active materials while preserving their superionic conduction. https://techxplore.com/news/2023-07-high-entropy-superionic-solid-state-conductors.html Engineering Thu, 06 Jul 2023 14:00:01 EDT news607853165 The costs of a type of battery storage suited to supporting the decarbonization of emerging economies have been predicted by Sheffield researchers. https://techxplore.com/news/2023-07-battery-storage-solar-power-low-cost.html Engineering Thu, 06 Jul 2023 13:32:03 EDT news607869122 A joint research team, led by Professor Lee Yongmin of the Energy Engineering Department at the DGIST and Professor Kim Sungsoo of Chungnam National University, has announced a significant advancement in battery technology with the development of a novel battery electrode degradation diagnosis technology. https://techxplore.com/news/2023-07-digital-twin-technology-advancement-battery.html Engineering Thu, 06 Jul 2023 12:32:03 EDT news607865521 Researchers at the Paul Scherrer Institute PSI and ETH Zurich have performed calculations to work out how air traffic could become climate-neutral by 2050. They conclude that simply replacing fossil aviation fuel with sustainable synthetic fuels will not be enough. Air traffic would also have to be reduced. The researchers are publishing their results today in the journal Nature Communications. https://techxplore.com/news/2023-07-climate-neutral-air.html Energy & Green Tech Thu, 06 Jul 2023 11:11:05 EDT news607860661