davidchapman
Contents contributed and discussions participated by davidchapman
Panasonic: New LED bulbs shine for 19 years | Crave - CNET - 0 views
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$40, 80 lm/watt
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Panasonic has launched a new household LED lightbulb in Japan that it says lasts 40 times longer than incandescent bulbs.
TG Daily - Broadband over power lines gets first industry standard draft - 0 views
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This standard is intended to serve as the communications protocol for smart grids as well as providing WAN facilities to end users.
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Chicago (IL) - Broadband over power lines is marching closer to actual availability. The P1901 Working Group today announced the release of the first draft defining medium access control and physical layer specifications for IEEE's Standard P1901.
The draft was approved with more than 82% majority vote during a meeting held in Tokyo from July 21 - 24, the IEEE announced today. The initial version is based on technologies using FTT and Wavelet OFDM modulation schemes.
Solar filling station opened in Bozen - DETAIL.de - Green - sustainable planning and constr... - 0 views
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1.7 kWp, 2000kWh per year. How many cars per annum can you charge at, say, 5KWh each? Better stick to bicycles and phones!
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South Tyrol gets serious about solar mobility: The "E-Move Charging Station", a pilot project of the Bozen entrepreneur Valentin Runggaldier, is to supply electrically operated bicycles, scooters, cars and even mobile phones with the necessary "fuel" from the sun. The solar charging stations were designed by Michael Scherer from Brixen
LinkedIn | Wire & Cable Industry Group News - 0 views
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Allied Wire & Cable's line of Wind Turbine Cable consists of our WTTC rated GreenLINX™ Wind Power Cable. Wind turbine cable requires high quality, durability and high performance to withstand the rigors of wind power environments. Wind turbine cables can be exposed to several different forces, including Mother Nature. Oil, solvent, chemical and fuel resistant, GreenLINX ™ wind turbine cable can withstand these forces and more.
Allied carries five different types of wind turbine cable, all part of the GreenLINX™ line of wind power cable. All five types are WTTC, 1000 volt rated, constructed of bare copper conductors.
Southampton scientists outline UK's best locations for domestic wind turbines :: University... - 0 views
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Report available at: http://server-uk.imrworldwide.com/cgi-bin/b?cg=corporatedocs&ci=energyst&tu=http://www.energysavingtrust.org.uk/content/download/554381/1961689/version/3/file/location
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"The results show that no urban or suburban sites with a building-mounted turbine generated more than 200kWh (or £26 of electricity) per annum, but the best performing building-mounted turbine, located in a rural area of Scotland, generated nearly 1,000kWh (or £127 of electricity) per annum. Larger free-standing pole-mounted turbines, sited in rural locations, could generate in excess of 18,000 kWh (or £2,300) per annum."
BBC NEWS | Business | Nissan to create hundreds of jobs - 0 views
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Nissan is to announce that its Wearside factory will start producing batteries for electric cars, which is expected to create 200 new jobs.
The £380m project will be supported by the European Investment Bank and aided in part by government grants.
GE: Smart grid yields net-zero energy home | Green Tech - CNET News - 0 views
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GE appliances have been converted to have electronic controls and will have a small module in the back that will allow it to communicate with a home's smart meter. With that communication link in place, consumers can find out how much electricity individual appliances use and program them to take advantage of off-peak rates.
Superconductors: Cure for grid transmission woes? | Green Tech - CNET News - 0 views
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"The big barrier here, as with any new technology, is that electric utilities are very conservative...Now we're overcoming that obstacle with initial installations, which are relatively short runs but this superconductor pipeline is much grander in scale," he said.
In practice, the cables would be placed underground, as gas pipelines are, and have nitrogen cooling stations every seven or eight miles. Fredette said the technology is feasible but would likely need some sort of loan guarantee from U.S. government to test the system in the field.
Israel Electric Road: Scientists Turn Traffic Into Power At Haifa's Technion Institute Of T... - 0 views
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Scientists in Israel say they have invented a way of turning traffic into electricity.
Where does the 'energy' really come from?
Google revs up smart charging for plug-ins | Green Tech - CNET News - 0 views
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There is some concern that millions of plug-in electric vehicles charging at the peak times, such as around 5:30 p.m. when people return from work, could cause power disruptions or require construction of new power plants.
To address this, Google has written software with "vehicle dispatch algorithms" that can decide how to best charge cars, Reicher said. In addition to smoothing out the load on the grid, smart charging makes it easier to take advantage of solar and wind power, which are variable sources of electricity.
An LED breakthrough in Korea? | Planetary Gear - CNET News - 0 views
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Researchers from Korea claim to have produced the world's first purely white LED (light-emitting diode).
Falling 10GbE Prices Spell Doom for Fibre Channel - 0 views
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This article suggests that 10Gb ethernet (copper) is about to take over the (optical) fibre channel for storage area networks. Caution: these networks are usually physically small and dense so cable lengths are short. The added value is high enough to justify the costs (Cost per switsch port still ~100 times higher than 1Gb, tricky cable installation).The comments at the end of the article that imply that 10Gb will be common are unconvincing.
GE, Idaho Labs turn waste heat into electricity | Green Tech - CNET News - 0 views
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Rather than use a working fluid to capture and transfer the waste heat, GE has developed a new evaporator to transfer it. The new design means that ORCs can be used to convert relatively low-temperature heat (under 500 degrees Celsius) into electricity on a wide range of power sources, including the equipment in coal power plants and small gas turbines, said Thomas Fry, a researcher in GE's Munich offices.
Small wind turbine works at low wind speeds | Green Tech - CNET News - 0 views
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Homeowners this fall will be able to buy a wind turbine at hardware stores that tackles the small wind industry's bete noire: slow wind.
WindTronics has developed a wind turbine sized for individual homes that it says can operate at speeds as low as 2 miles an hour.
It will be sold for $4,500 as the Honeywell Wind Turbine... ... generate 2,000 kilowatt-hours in a year for a home with a very good--called Class 4--wind resource, according to the company. That's between 15 and 20 percent of the annual electricity consumption for the average U.S. home.
Is community wind power full of hot air? | Green Tech - CNET News - 0 views
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Some companies are trying to stake out a middle ground in wind power by making mid-size turbines big enough for a school or big-box retailer to use, but not so big that they require a convoy of trucks to be delivered.
Nobel laureate: Wind is not the future | Green Tech - CNET News - 0 views
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Wind power is not the answer
Steinberger now wants funding for a big pilot project.
The idea is to link solar thermal power from Northern Africa to Europe via high-voltage undersea cables. The proposed 3- to 3.5-gigawatt power plant would cost an estimated $32 billion to build. Steinberger believes that 80 percent of Europe's energy needs could be met by solar thermal power plants in the Sahara by 2050.
BBC NEWS | Scotland | Glasgow, Lanarkshire and West | Switch on for largest wind farm - 0 views
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Europe's largest onshore wind farm is set to be officially switched on by Scottish First Minister Alex Salmond.
David MacKay, professor of natural philosophy at the University of Cambridge's department of physics, said Whitelee was a step towards targets to cut carbon emissions, but was only a start.
He said: "To achieve the government target of a complete decarbonisation of our electricity supply system by 2030 we need to be talking about a 100-fold increase in wind farms in Britain and perhaps as much as a five-fold increase in nuclear power.
"That's the scale of the building challenge we have if we're serious about getting off fossil fuels."
Biofuels, not wind and solar power are Shell's energy future | Business | guardian.co.uk - 0 views
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Shell will no longer invest in renewable technologies such as wind, solar and hydro power because they are not economic, the Anglo-Dutch oil company said today. It plans to invest more in biofuels which environmental groups blame for driving up food prices and deforestation.
Study: Microwind turbines a tough sell in Mass. | Green Tech - CNET News - 0 views
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The Massachusetts Renewable Energy Trust commissioned a study last year to review electricity output from 21 small wind turbines in the state and the results were surprising: the data showed that the estimated production was about three times higher than the turbines' actual production.
Over the past three years, Toyota secretly tested lithium ion batteries as a potential replacement for the nickel metal hydride batteries now used in the Prius, according to a Bloomberg report
In its tests, Toyota concluded that lithium-ion batteries were safe and reliable, but the higher cost doesn't justify a complete shift over for Toyota's hybrids, executives said. As a result, the company will remain with nickel-based batteries for most of its hybrid cars, according to the report.