Posts Tagged ‘electricity’

An Important Message From The Environment

Friday, November 28th, 2008

My daily life is about as minimal in energy usage as it can be. I turn off all excessive lighting in my home, walk or take public transportation everywhere, eat vegetarian always and locally when possible. A few weeks ago I checked out a CO2 calculator and I was well under the national average, near the bottom in fact and this was looking promising. Then I accounted for my work. At that point the scales tipped dramatically, both in terms of the actual lighting work as well as the travel.

I have been thinking about this a lot recently since I travel so much for work. My air travel amounts to tens of thousands of air miles a year. While this is great for my income and frequent flyer programs, it is not so hot for the atmosphere. What I have decided to do is offset the carbon emissions from my air travel.

This is a simple way to solve an otherwise unsolvable problem. I need to travel for my work. The CO2 emissions are going to happen. There is no realistic way to cut that down, short of giving up my art. But I can do something about the impact that CO2 has.

If you are interested in this as well, here are a few things you can do. First, start off by determining where you are now with a Carbon Calculator. The calculator auto updates when you enter your own numbers over the sample.

Then, look to options like CFL’s, electronics recycling or eliminating junk mail. You could consider shifting to a more vegetarian diet or taking public transportation more often as well.

If, after all this, you find you still emit a large volume of CO2 and would like to do something more about it, consider buying carbon offsets. Best of all, these offsets are tax deductible, so not only will you be helping the environment you will be lightening your tax burden as well.

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Flourescent Farming

Tuesday, May 6th, 2008

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The 1301 fluorescent tubes are powered only by the electric fields generated by overhead powerlines.
Richard Box, artist-in-residence at Bristol University’s physics department, got the idea for the installation after a chance conversation with a friend. ‘He was telling me he used to play with a fluorescent tube under the pylons by his house,’ says Box. ‘He said it lit up like a light sabre.’
Box decided to see if he could fill a field with tubes lit by powerlines. After a few weeks hunting for a site, he found a field, slipped the local farmer £200 and planted 3,600 square metres with tubes collected from hospitals.
A fluorescent tube glows when an electrical voltage is set up across it. The electric field set up inside the tube excites atoms of mercury gas, making them emit ultraviolet light. This invisible light strikes the phosphor coating on the glass tube, making it glow. Because powerlines are typically 400,000 volts, and Earth is at an electrical potential voltage of zero volts, pylons create electric fields between the cables they carry and the ground.
Box denies that he aimed to draw attention to the potential dangers of powerlines, ‘For me, it was just the amazement of taking something that’s invisible and making it visible,’ he says. ‘When it worked, I thought: ‘This is amazing.’’

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Solar Sunday

Sunday, March 30th, 2008

Solar Sunday is my weekly roundup of renewable energy and energy efficiency news from around the web.

Solar Paint

The Swansea Solar Paint project is led by Dave Worsley, who, together with his team, were researching ways to make make steel last longer. By chance that they started to focus on the degradation of paints in steel surfaces, when they realized that their research could lead them to develop a new way of getting energy from the sun.

The idea is to coat every piece of steel cladding with a solar cell paint. As steel is passed through the rollers multiple coatings of of the solar cell system are applied to it. Based on the preliminary research, the materials that are being applied are suited to capturing low level solar radiation, which means that they should work just as well in areas where the sun doesn’t directly shine on them.

Invest in Algae

Earth2Tech has a roundup of biofuel startups that are working on turning algae into fuel. We can’t yet know what will happen; Some of these companies might become huge in the next few years, or they might be left in the dust by new developments (solar energy below $1/watt and advances in battery or hypercapacitor technology, for example). Only the future will tell, but in the meantime, they are worth keeping an eye on.

The companies are: GreenFuel Technologies, Solazyme, Blue Marble Energy, Inventure Chemical, Solena, Live Fuels, Solix Biofuels, Aurora Biofuels, Aquaflow Binomics, Petro Sun, Bionavitas, Mighty Algae Biofuels, Bodega Algae, Seambiotic and Cellena.

SoCal goes Solar

Edison International plans to launch a roof top photovoltaic solar project. The process requires no fuel or a transmission station to operate. The plans include an initial phase to be up and running by Summer, 2008.

In an exclusive interview with John Bryson, Chairman and CEO of Edison International by CNBC reporter, Dylan Ratigan explained a new direct method of delivering solar energy. The process is called Photovoltaic technology,which means it converts sun energy directly into power within the solar cell. The unique aspect of this project, as explained by John Bryon involves leasing about 2 ½ miles of rooftops in the hotter regions of Southern California.

The roof tops will be fitted with thin-film solar cells and have the ability to literally dump electricity into the surrounding community. The communities have been preselected to include areas where Southern California Edison has a growing customer base. The advantage of the photovoltaic technology is that it does not require a separate transmission station or added fuel costs. The thin-cell solar manufacturers has not been determined at this time.

According to Mr. Bryson, the Photovoltaic Roof Top Project is planning to be up and running in its initial phase by this Summer. The process when it begins can almost immediately begin to produce electricity to relieve the additional burden of air conditioning and the like during the hot season.

Investing in Forests

It is either a visionary piece of capitalism or throwing money into the wind. A venture capitalist today made a huge environmental bet – that one day the environment services that sustainable forests provide will be worth big money.

The Iwokrama reserve in Guyana is a 371,000 hectare chunk of tropical forest – roughly the size of Majorca – and is a successful experiment in sustainable forest management.

Hylton Murray-Philipson, director of the UK-based financiers Canopy Capital, has signed a deal with Iwokrama guaranteeing a “meaningful” contribution to their running costs for five years, a deal which may be renewed.

In return for these funds, Canopy Capital is given “ownership” of the forest’s ecosystems services and a claim on any profits that might one day be made from them.

Solar soon to be cheaper than coal

Researchers from MIT have improved commercial solar cells that will soon be significantly cheaper and more efficient than those available today. Ely Sachs, a professor of mechanical engineering at MIT, predicts that by 2012 such solar cells will be comparable in price with coal, which is about $1 per watt.

Sachs and his colleagues have started a company called 1366 Technologies. With the help of a recent $12.4 million grant, the team is building a pilot-scale manufacturing plant to fabricate their first batch of solar cells. The cells currently have an efficiency of 19.5%, and cost about $1.65 per watt. That´s a 27% improvement in efficiency over similar commercial solar cells of today, which have about 15% efficiency and cost about $2.10 per watt.

Carbon Neutral Power

The company that generates the largest proportion of New Zealand’s electricity has been certified carbon neutral for more than a year.

Meridian Energy generates around a third of New Zealand’s total energy demand (approx 12,000 GWh) exclusively from wind and hydro sources. The company has a history of advocating a carbon credit marketplace.

Clothing goes Solar

A year ago Bonnie modelled a solar powered bikini for us, but it was just a prototype. Now, the Guardian tells us that flexible solar cells will be woven right into our clothing, to charge our iPods and phones.

Dave Pritchard at Fujitsu, told David Smith of the Guardian: ‘Within a year it will be possible to design clothing with solar cells on the back or arms, so you can recharge wearable devices.’ He said the clothing would be useful on the ski slopes, outdoor holidays and for the emergency services. It would also appeal to the environmentally conscious as a means of reducing power consumption.

Sustainable Add-ons

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Old is New

Step right in ladies and gentlemen, and gaze at the marvels of modern technology! Allow us to show you the most amazing car of the century: The magnificent Detroit Electric, the car of summer luxury! This 100 year-old antique electric car will be available in early 2009 from ZAP and China Youngman Automotive Group, proving once and for all that there is no such thing as a new idea. The Detroit Electric is considered to be the most popular electric car in history — and was produced by the Anderson Electric Car Company in 1907 (production ran from 1907 to 1939). This cute little EV could go fo 130 miles on one charge, and had a top speed of about 32km/h. Famous Detroit Electric owners included Thomas Edison, Charles Proteus Steinmetz and John D. Rockefeller, Jr.

So why is this relevant? Well, Zap, who is creating the Zap Alias, in partnership with the China Youngman Automotive Group, decided to resurrect the Detroit Electric as a promotional vehicle and are planning to produce a small number to market. The joint venture is also set to release an array of cars, buses and trucks under the Detroit Electric brand — all electrically powered, of course.

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Solar Sunday

Sunday, January 20th, 2008

The Darkside of Solar Power

The “darkest ever” substance known to science has been made in a US laboratory.

The material was created from carbon nanotubes – sheets of carbon just one atom thick rolled up into cylinders.

Researchers say it is the closest thing yet to the ideal black material, which absorbs light perfectly at all angles and over all wavelengths.

The discovery is expected to have applications in the fields of electronics and solar energy.

Wind

“It really kills the view to have mile after mile of wind turbines,” said Howard Hayden, a retired physicist and renewable energy skeptic who distributes The Energy Advocate, a monthly newsletter.

At least 260,000 turbines, each 300 feet tall, would be required to meet the United States’ electricity needs.

“To me, the number is pretty small,” said Cristina Archer of Carnegie Institution for Science in Stanford, Calif., who sees a wind turbine as less pollution and less imported oil.

She and a colleague previously showed that the world’s wind energy potential is 35 times the global energy demand. They have now shown that wind energy can provide the stable power supply that its critics have said it cannot.

“It is the nature of the wind to gust and lull,” Archer told LiveScience, and this can cause fluctuations in the electricity that is generated.

However, a large network of interconnected wind farms could stabilize the supply.

Biofuel

General Motors Corp. is planning on making biofuel with garbage at a cost of less than a dollar a gallon, the company’s chief has said.
The US automaker has entered into a partnership with Illinois-based Coskata Inc. which has developed a way to make ethanol from practically any renewable source, including old tires and plant waste.

The process is a significant improvement over corn-base ethanol because it uses far less water and energy and does not divert food into fuel.

“We are very excited about what this breakthrough will mean to the viability of biofuels and, more importantly, to our ability to reduce dependence on petroleum,” said Rick Wagoner, GM’s chief executive officer, on Sunday

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Good bye Mr. Edison

Friday, November 16th, 2007

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Today, Con Edison will end 125 years of direct current electricity service that began when Thomas Edison opened his Pearl Street power station on Sept. 4, 1882. Con Ed will now only provide alternating current, in a final, vestigial triumph by Nikola Tesla and George Westinghouse, Mr. Edison’s rivals who were the main proponents of alternating current in the AC/DC debates of the turn of the 20th century.

The last snip of Con Ed’s direct current system will take place at 10 East 40th Street, near the Mid-Manhattan Library. That building, like the thousands of other direct current users that have been transitioned over the last several years, now has a converter installed on the premises that can take alternating electricity from the Con Ed power grid and adapt it on premises. Until now, Con Edison had been converting alternating to direct current for the customers who needed it — old buildings on the Upper East Side and Upper West Side that used direct current for their elevators for example. The subway, which has its own converters, also provides direct current through its third rail, in large part because direct current electricity was the dominant system in New York City when the subway first developed out of the early trolley cars.

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Solar Tiles

Thursday, June 21st, 2007

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Tired of your roof just soaking up rays and not pulling its load? You’re not alone. Increasing numbers of people are putting their roofs to work generating electricity. And that does not necessarily mean installing unsightly steel-and-glass solar energy modules.

Today you can get photovoltaic shingles (or tile, or slate) that will do the job and still look like a roof.

For instance, the National Institute of Standards and Technology has been testing various forms of photovoltaic roofing products for the past year on roofs in Maryland to calibrate their output. Brian Dougherty, project manager, said the test includes tile (popular in the Southwest), slate (popular in Europe) and shingle (popular everywhere). All of them have inactive areas where the roofer can drive nails and not short out any circuits.

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WiTricity

Friday, June 8th, 2007

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Power cables and even batteries might become a thing of the past using a new technique that can transmit power wirelessly to cell phones, laptops, MP3 players, household robots and other electronics.

Scientists lit a 60-watt light bulb from a power source seven feet away with their new technique, with no physical connection between the source and the appliance. The researchers have dubbed their concept “WiTricity,” as in “wireless electricity.”

MIT physicist Marin Soljacic began thinking years ago about how to transmit power wirelessly so his cell phone could recharge without ever being plugged in. Scientists have pursued wireless power transmission for years— notably, eccentric genius Nikola Tesla, who devoted much energy toward it roughly a century ago.

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We apologize for the technical difficulties

Monday, October 23rd, 2006

Strange. After a show is open I rarely see another performance. Sometimes I do not even know when the shows close. I assume there are small problems that arise from time to time but generally take the view that no news is good news and keep going on. Well, the two shows that I have up both had major problems this weekend.

Explode

Twenty Years of Agnes, on its closing performance ran into a problem with the computer that runs the lighting cues and the first half of the show had to be done with a generic wash turned on by someone who was there. I got a voicemail about this when I emerged from the subway in Brooklyn a half hour before the show was to begin. I could not have made it in time to solve the problem. Act two was solved, or so they told me. C’est la vie.

Windows is apparently running into some big electrical problems as the archaic electrical system at the Workshop Theatre seems to be breaking. Now the Master Electrician on Windows is the Production Electrician for Playwrights Horizons, so I when the theatre says “It must be something you did,” I am having trouble finding that to bear any basis in fact. But what can you do? It was rather disappointing when I got a phone call from the Production Manager asking me which lights could I afford to lose if I had to get rid of 4 of the 44 dimmers in the space. “Um, none.” Hopefully the problem has been solved.

A Picture Share!

One must, by necessity put so much faith in other people to maintain and stay true to your work. Electricians maintain a designer’s work after the show is open. A director handles a playwright’s text after it is printed. The stage manager holds the entire thing together once the creative team has gone away.

I really don’t like to think about these problems. But they are very real. And there is no way around it. One can not afford to get upset by it. That would only wear you down. Still, it is disappointing.

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