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GreenLight News
CO2 mission plunges
Apr 1, 2009 — We know carbon dioxide is all around, but pinpointing its location and quantity was the focus of a recent NASA mission. Unfortunately, a satellite with instrumentation onboard to monitor carbon throughout the Earth’s atmosphere crashed into the ocean shortly after launch. Developed by Hamilton Sundstrand’s Energy, Space & Defense facility in Pomona, Calif., the Orbiting Carbon Observatory was a $270 million spacecraft with an instrument that included a telescope and three high-resolution...
In a word: plastics
Apr 1, 2009 — Hybrid organic solar cells made of plastic may help “green” the solar industry. Although plastics are generally made of petroleum, one could debate whether plastic solar is moving in a cleaner, greener direction. It is possible that plastics may be...
Mission to Earth
Apr 1, 2009 — The environment is often studied from here on Earth. But why not a top-down rather than a bottom-up approach? NASA’s Earth Observing System (EOS) grew out of an idea proposed by astronaut Sally Ride, who, after observing Earth from outer space,...
Solar recycling
Apr 1, 2009 — Photovoltaic panels have a lifetime of approximately 30 years, so panels installed during the first solar boom of the 1970s are already candidates for recycling. Based on knowledge gained from the electronics, telecommunications and battery...
Environmental signage: the great oxymoron
Mar 1, 2009 — As ad budgets are cut, what better way to broadcast a message than to install a large flat panel display where it will reach a captive audience? These advertisements are popping up in railway stations, airports and shopping malls – anyplace where...
Greening the Great White Way
Mar 1, 2009 — Broadway, long known for its egregious use of lights, launched the “Broadway Goes Green” initiative in November. Significant progress has been made by its 39 theaters, all of which are doing their part to meet the city’s commitment to reduce its...
Light pollution: the good, the bad and the just-too-bright
Mar 1, 2009 — Four hundred years ago, Galileo made his first astronomical observation through a telescope. Today he wouldn’t recognize the skies because light pollution prevents us from seeing the stars clearly from the most populated areas of the world. Most...
Looking for light in all the wrong places
Mar 1, 2009 — Creatures in the wild that follow natural light cues to negotiate their environment are sometimes misguided by man-made polarized light sources, such as asphalt roads, oil spills, black gravestones, glass panes on buildings, dark-colored paint work...
From Autos to Solar
Feb 1, 2009 — There is nothing like making the best of a bad situation. Solar company Infinia Corp. of Kennewick, Wash., may be able to take advantage of the downward spiral of the auto industry. It makes a unique solar dish system that can be mass-produced by...
Greening the Job Market
Feb 1, 2009 — Reducing greenhouse gas is a mandate of governments worldwide and, key to accomplishing that goal, is being smarter about energy generation and use. With jobs falling off in so many industries, the green way of doing business is opening up new...
The Rippling Silicon Market
Feb 1, 2009 — So much can change in such a short time. Back in July, we reported that photovoltaic (PV) grade silicon was in short supply and that cell and wafer manufacturers were signing long-term contracts or partnering with silicon makers to ensure that...
Thicker than Thin
Feb 1, 2009 — Bringing down the cost of solar has many manufacturers looking at new materials and novel processes. NanoGram Corp. of Milpitas, Calif., specializes in a process called laser reactive deposition (LRD), which is used in manufacturing optical,...
A global kick in the pants
Jan 1, 2009 — Alternative energies are still just too expensive for wide-scale adoption, yet adopt we must to reduce harmful carbon emissions. But how does that happen when costs are so high? Fortunately, governments around the globe are stepping in to give...
Banning the bulb
Jan 1, 2009 — In the interest of reducing energy consumption, governments around the world are reducing use of the venerable incandescent lightbulb that has illuminated lives for more than 100 years. In the US, the Clean Energy Act of 2007 banned incandescents...
Keeping toxins at bay
Jan 1, 2009 — One important trend affecting photonics manufacturers is the restriction of hazardous materials. Without the restrictions, hazardous materials would adversely affect workers during manufacturing and would leak into the environment when equipment is...
Welcome to Raleigh, LED capital USA
Jan 1, 2009 — In an effort to save energy, protect the environment, reduce energy costs and provide a better quality of light for improved visibility and safety, a coalition of government and industry called the LED City initiative has been formed to evaluate,...
Putting Solar to the Test
Dec 1, 2008 — Harnessing photovoltaics for electrical generation can make it to the big time only if cells and modules meet stringent standards and pass safety tests. All across the globe, solar power is gaining ground. The movement has been sparked by feed-in...
PV Blows Out the Walls
Dec 1, 2008 — Greenpeace and the European Photovoltaic Industry Association have worked together for seven years examining the potential of photovoltaics (PV) to solve the world’s energy crisis. Their latest report, “Solar Generation V – 2008,” states that, “If...
Record, Record, Who Has the Record?
Dec 1, 2008 — When two US government agencies claim to have broken the solar cell efficiency record set by Spectrolab in 2006, it begs the question: Who is measuring what and how? In August, the US National Renewable Energy Lab (NREL), which is operated for...
State of the Streetlight
Dec 1, 2008 — Driving down the highway, zinging by countless streetlights, we rarely consider the technology behind them, their cost or how much energy they consume. Not much has changed in streetlights in decades. But change is afoot, as lighting designers...
An Olympian Feat in the Sky
Nov 1, 2008 — The 2008 summer Olympics in Beijing showcased world-class athletic prowess side by side with spectacular new green technologies. While the aquatics center called the Water Cube appeared to undulate with light, thanks to LEDs, in the Olympic Village,...
Lighting Up the Underdeveloped World
Nov 1, 2008 — In India, sub-Saharan Africa and other underdeveloped areas of the world, interior lighting is provided by kerosene lanterns. The lighting is expensive and insufficient, and it poses a health and fire hazard. It also adds to global carbon...
Shine On, New Bulb
Nov 1, 2008 — Based on a whole new technology, it starts with a standard glass bulb that is coated on the outside with a phosphor and then stimulated by accelerated electrons, making the surface glow. According to Vu1, it has several advantages over other...
Sunny Days for Solar
Nov 1, 2008 — All eyes are on the solar market, watching to see when supplies will meet growing demand and when prices will tumble to a point where solar is no longer an “alternative” energy. A recent study by Photon Consulting of Boston titled “Detailing Demand:...
Thin Is In
Nov 1, 2008 — Analysts predict that the future solar landscape will be painted with thin-film solar cells rather than the big, bulky aluminum-framed photovoltaic (PV) panels of yesterday. Thin is in for many reasons, not the least of which is that thin-film PV...
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April 2024
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