More companies prefer green bonds, carbon taxes

February 7, 2018 by  
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Experts from Citi, Microsoft and Bank of America weigh in on the latest corporate efforts to reach dramatic emissions targets.

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More companies prefer green bonds, carbon taxes

Scientists just created green solar cells – and they’re working on white, red and additional colors

August 17, 2017 by  
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Do you love solar panels , but hate the color blue? You’re in luck – researchers in the Netherlands have developed a process for making conventional solar panels bright green, and they’re working on developing other colors as well. By making the panels more appealing, they hope to entice more people and businesses to invest in clean energy. Researchers at AMOLF devised a method of imprinting solar panels with silicon nanopatterns that make them appear green. Though the process decreases the efficiency by 10 percent, it’s considered to be an acceptable trade-off if the panels are installed on more buildings. Said Verena Neder, lead author of the paper and researcher at AMOLF, “The black appearance of the [conventional] solar panels is not attractive for many people and a reason to not put solar panels on their rooftop. Making solar cells colored makes it possible to integrate them in an architectural design of houses and full cities, but also to merge them in the landscape.” CleanTechnica reports that to turn the panels green , researchers “use soft imprint lithography to apply a dense array of silicon nanotubes onto the surface of solar cells.” At approximately 100 nanometers wide, each nanotube is carefully shaped to scatter a certain wavelength of light. The cells appear green to observers, and the color is constant regardless of where one is standing. “The structure we made is not very sensitive to the angle of observation, so even if you look at it from a wide angle, it still appears green,” said Neder. Related: Revolutionary glass building blocks generate their own solar energy Because the color can be adjusted by altering the geometry of the nanotubes , the researchers have started planning imprints that create red and blue solar colors. After the three primary colors of light are developed, they will be able to create any color — including white. “You have to combine different nanoparticles, and if they get very close to each other they can interact and that will affect the color,” said Albert Polman, a scientific group leader at AMOLF. “Going to white is a really big step.” The technology could make it possible to create tandem solar cells which are stacked in layers. Each layer would be fine tuned to absorb certain portions of the electromagnetic spectrum. Theoretically, this could result in sunlight conversion efficiencies of 30 percent more. Considering commercially available solar cells are about 20 percent efficient, this could be a game-changer for the renewable energy industry. Affirmed Neder, “The new method to change the color of the panels is not only easy to apply but also attractive as an architectural design element and has the potential to widen their use.” + AIP Applied Physics Letters + AMOLF Via Clean Technica Images via Pixabay and Depositphotos

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Scientists just created green solar cells – and they’re working on white, red and additional colors

INFOGRAPHIC: How smart cities are creating a greener future

December 3, 2015 by  
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Advances in technology are quickly paving the way for smart cities. A smart city is an urban center that harnesses technologies, such as IT, to improve the quality of life of residents, manage available resources such as roads and water in economically sustainable manner, and reduce environmental pollution . According to figures published by the New Jersey Institute of Technology (NJIT), smart city technologies will grow to an industry worth $27.5 billion by 2023. In addition, the world will be home to about 88 smart cities by 2025. To learn more about smart cities of the future and how big data will play a role in improving the efficiency and sustainability of urban living, checkout the infographic below created by the New Jersey Institute of Technology’s Online Masters in Computer Science program . Read the rest of INFOGRAPHIC: How smart cities are creating a greener future

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INFOGRAPHIC: How smart cities are creating a greener future

Pioneering new urban design for Stockholm includes a soaring green sky walk park

December 3, 2015 by  
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From Energy Star to Tenant Star: The next frontier in building efficiency

July 10, 2015 by  
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Tenant Star, a tenant-focused version of EPA’s successful Energy Star building program, could have big implications for the efficiency of commercial spaces.

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From Energy Star to Tenant Star: The next frontier in building efficiency

Superhydrophobic Coating Makes Better Solar Panels

June 2, 2015 by  
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Scientists at the Oak Ridge National Laboratory have developed a coating for glass that is superhydrophobic, making it so that it will literally bounce water off the surface. This coating also decreases the amount of light that reflects away from the glass. The benefits for solar collectors are immediately evident. The ability to be self-cleaning would be an enormous benefit for solar panels, even without the additional conversion efficiency benefits. Although many of the best locations for solar panel farms are in dusty desert climates with very little rainfall, even there, the ability to clean the solar panels with just a small amount of water and the self-cleaning ability of the panels would be a benefit, and a savings in labor and in water use. The coating can be applied to glass in a number of different categories, including architectural purposes, and military applications, but the use of superhydrophobic coating for solar panels could be particularly beneficial: “Where solar panels are concerned, the suppression of reflected light translates into a 3-6 percent relative increase in light-to-electricity conversion efficiency and power output of the cells. Coupled with the superhydrophobic self-cleaning ability, this could also substantially reduce maintenance and operating costs of solar panels. In addition, the coating is highly effective at blocking ultraviolet light.” According to the ORNL press release , the coating is also highly durable, unlike other hydrophobic and self-cleaning technologies. The process to make this coating is also cost-effective, and it “can be fabricated through industry standard techniques mak[ing] it easy and inexpensive to scale up and apply to a wide variety of glass platforms.” via: Oak Ridge National Laboratory press release image via: ORNL

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Korean researchers develop most efficient solar cell to date

January 13, 2015 by  
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A Korean research team has achieved record level efficiency in solar cells, using a new formula for mixing perovskite structures. Perovskite is an inexpensive, abundant mineral, and the researchers have found ways to make it even more efficient for solar power applications. The new solar cells are measured at 17.9 percent efficiency, which could mean very big things for this clean alternative energy source. Read the rest of Korean researchers develop most efficient solar cell to date Permalink | Add to del.icio.us | digg Post tags: “solar energy” , advancements , alternative energy , Alternative Fuel , best , cheap energy , cheap solar , clean , cleanest , efficiency , korea , Korean , minerals , perovskite , power , records , renewable energy , research , science , scientific , solar , Solar cells , Solar Power , solar technology

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Korean researchers develop most efficient solar cell to date

2016 Hyundai Sonata Plug-in Hybrid has a 22-mile electric driving range

January 13, 2015 by  
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Car buyers who aren’t quite ready to make the switch to a full electric car , but still love the idea of driving at least part of their trip emissions free will soon have more options with the growing fleet of available plug-in hybrid models. Hyundai has just unveiled the 2016 Hyundai Sonata Plug-in Hybrid at the Detroit Auto Show , which can travel up to 22 miles in electric mode, besting many of its competitors. Missing Attachment Missing Attachment Missing Attachment Missing Attachment Missing Attachment Missing Attachment Missing Attachment Read the rest of 2016 Hyundai Sonata Plug-in Hybrid has a 22-mile electric driving range Permalink | Add to del.icio.us | digg Post tags: 2015 Detroit Auto Show , detroit auto show , green car , green transportation , hybrid , HYUNDAI , Hyundai Sonata , Hyundai Sonata Hybrid , Hyundai Sonata plug-in hybrid , plug-in hybrid

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2016 Hyundai Sonata Plug-in Hybrid has a 22-mile electric driving range

Award-Winning vosLED Light Bulb Combines Retro Styling With LED Efficiency

October 1, 2014 by  
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Do you love the retro look of incandescent light bulbs and harbor guilty thoughts of stockpiling them in preparation for their phase out ? Well, here’s your happy compromise! The energy-efficient vosLED light bulb looks like Edison’s original design but uses the latest LED technology to keep up with sustainable lighting developments. German lighting manufacturer Vosla looked to the original 1879 carbon-filament bulb for inspiration, creating a retro-style bulb that consumes much less energy than its classic predecessor. Read the rest of Award-Winning vosLED Light Bulb Combines Retro Styling With LED Efficiency Permalink | Add to del.icio.us | digg Post tags: Edison light bulb design , green lighting , green technology , incandescent bulb , LED light bulb , LED lighting , LED technology , light bulb design , red dot award , traditional light bulb design , vosla lighting design , vosLED light bulb

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Award-Winning vosLED Light Bulb Combines Retro Styling With LED Efficiency

INFOGRAPHIC: 50 Ways Your Home Could Help Save the Earth

September 22, 2014 by  
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So you’ve already swapped out your incandescent bulbs for LEDs and installed a smart thermostat – what else can you do to green your home? Good to Be Home has you covered with a new infographic that shows 50 ways you can lower your home’s environmental footprint (as well as your utility bills). Check out the full infographic after the break! Read the rest of INFOGRAPHIC: 50 Ways Your Home Could Help Save the Earth Permalink | Add to del.icio.us | digg Post tags: “energy efficiency” , 50 ways your home can save the earth , efficiency , energy efficiency tips , energy efficient house , good to be home , Green Building , green design , green home , green home tips , infographic , sustainable design , sustainable home

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