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New Solar Technology are 10x Less Expensive

New Zealand (ToGW) - Solar cell technology developed by Massey University’s Nanomaterials Research Center will enable companies to generate electricity from sunlight at a 10th of the cost of current silicon-based photo-electric solar cells.

Dr. Wayne Campbell and researchers at the Center have developed colored dyes for dye-sensitized solar cells.

The synthetic dyes are made from natural compounds, such as hemoglobin.

“The expected cost is one tenth of the price of a silicon-based solar panel, making them more attractive and accessible to home-owners,” he said.

The Center’s new director, Professor Ashton Partridge, says they now have the most efficient porphyrin dye in the world and aim to optimize and improve the cell construction and performance before developing the cells commercially.

The solar cells are the product of more than 10 years research funded by the Foundation for Research, Science and Technology.

Via :: Massey University Press Release

New Solar Cell can be Printed out of a Printer

Researchers at the New Jersey Institute of Technology have developed an inexpensive solar cell that can be painted or printed on flexible plastic sheets.

"Someday homeowners will even be able to print sheets of these solar cells with inexpensive home-based inkjet printers. Consumers can then slap the finished product on a wall, roof or billboard to create their own power stations," said lead researcher and author Somenath Mitra, PhD, professor and acting chair of NJIT's Department of Chemistry and Environmental Sciences.

"We foresee a great deal of interest in our work because solar cells can be inexpensively printed or simply painted on exterior building walls and/or roof tops. Imagine some day driving in your hybrid car with a solar panel painted on the roof, which is producing electricity to drive the engine. The opportunities are endless. "

The solar cell Mitra helped develop uses carbon nanotubes, which are 50,000 times smaller than a human hair.

One nanotube can conduct a current better than any conventional wire.

Mitra and his research team took the carbon nanotubes and combined them with fullerenes, which trap electrons, to form snake-like structures.

[POLL] What Alternative Energy Source Do You Find Most Promising?

What alternative energy source do you find most promising?
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pollcode.com free polls

Sewage to be Used to Produce Electricity

Government and industry officials in Charles County, Maryland are creating an innovative sewage system that would use sanitized sewage water for cooling and generating power.

Called a closed-loop system, the plan is to pump sewage to treatment stations, than route the treated sewage, known as effluent, to cooling towers and for producing electricity.

The effluent is converted to steam to drive the turbines to generate electricity.

Normally, cooled groundwater is used in cooling towers.

The benefits are twofold. First of all, groundwater would no longer be drawn from the ground. Second, treated sewage wouldn’t be dumped into the Potomac.

The idea is not new, but the size of the system is.

"A big system like this that covers several facilities in volume does not exist," John Reardon, the county’s economic development director said. "Nobody's done anything like this before."

The plan already has two plants on board, and is hoping another will join.

The Maryland Department of Environment has not approved the plan, but is expected to.

New Wind Turbine Can Be Lowered At The Flick Of A Switch To Avoid Birds

New Hampshire (TGW) -The wind turbine is flopped over on its side, its blades still.

The turbine isn’t broken; it was lowered from a height of 80 feet to avoid a flock of migratory birds.

The newly installed wind turbine can be lowered at the flick of a switch – the main reason it was given a permit to be constructed on Appledore, an island off the coast of New Hampshire.

The AIRMAP observatory there needed power in the winter; the observatory’s diesel generators were only used in the summer.


Photo credit: University of New Hampshire

Renewable Energy Slogans

Reader question: Plz gimme slogans on hydropwer,wind power,solar energy,tidal energy & biomass energy.I want dese now?


Hydropower - Got Water?

Wind power - That was windy.

Solar power - The sunny side of life.

Tidal energy - Energy now knows no season.

Biomass energy - Not always so corny.

China Manages to Cut Some Sulphur Dioxide Emissions

Beijing (ToGW) - China, the world's top emitter of sulphur dioxide, has managed to cut emissions of the acid-rain causing pollutant in first half of 2007, but the government said on Tuesday that meeting national targets would be tough.

China has promised to cut emissions by 10% between 2006 and 2010.

Sulphur dioxide emissions were down .88% in the first half of 2007, Beijing said.

China has offered higher tariffs to power stations with desulphurization equipment.

What's So Special About Hydropower and Hydroelectricity?

What is hydroelectricity? Hydroelectricity is electricity produced by hydropower. Hydropower is a very broad term; it can refer to using water for irrigation, milling, and even textiles. That is why hydroelectricity is the proper term when referring to the renewable energy resource, which we are.

Hydroelectricity is the world’s leading source of renewable energy, supplying 19% of the world’s electricity, and accounting for 63% of the total renewable energy electricity generated. Large hydroelectric and small hydroelectric are the common names for the two types of hydroelectric installations. As you probably could have guessed, small hydro is “the application of hydroelectric power on a commercial scale serving a small community or medium sized industry.” Meanwhile, large hydro is used on a large scale.

So what’s so special about hydroelectricity? The fact that it’s already being used. As mentioned previously, hydroelectricity provides 19% of the world’s energy. Commercial industry can already expand off of hydro; it’s low tech, it’s been in use for over a hundred years, and it works inexpensively.

Does hydroelectricity have any harmful side effects? Let’s see what Wikipedia says:

Hydroelectric projects can be disruptive to surrounding aquatic ecosystems. For instance, studies have shown that dams along the Atlantic and Pacific coasts of North America have reduced salmon populations by preventing access to spawning grounds upstream, even though most dams in salmon habitat have fish ladders installed.

As important as salmon is, this small disadvantage should not be a reason to not use hydro.
If hydroelectricity is expanded upon and used with other technologies, hydroelectricity could become even greater than it already is.

More Alternative Energy Series:

Why Corn Ethanol is Bad
The Temporary Solution: Coal
Nuclear Power: Energy of the Future or As Bad As Fossil Fuels
5 Reasons Solar Power Works
The Wind Power and Solar Power Combination
Another Look at Nuclear Power - Nuclear Waste
What's So Special About Hydropower and Hydroelectricity?
Top 5 Advantages of Geothermal Power

[POLL] Plastic or Paper?

Do you use plastic, paper, or cloth bags?
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pollcode.com free polls

Reader Question - Global Warming

From Yahoo! Answers:
ive got a few questions about global warming:

1.How is man perpetuating (making it worse) the problem?
Man is making the problem worse by sending greenhouse gases into the atmosphere by burning fossil fuels. Greenhouse gases, like carbon dioxide, cause the greenhouse effect. The greenhouse effect makes sure the Earth is warm enough for humans to live by trapping radiation and heat inside of the Earth's atmosphere. (This is a very simplified way of thinking about it.)

2.What can man do to stop or slow down the problem of global warming?
To slow global warming, we have to stop the extra release of greenhouse gases. To do that, we have to stop burning fossil fuels like oil, coal or natural gas. In other words, we have to switch to renewable energy sources.

3. Highlight the social and enviromental impacts of global warming?
No matter what we do, global warming is going to have some effect on our climate (it is already). Some effects if we DON'T take action:

Ice caps are going to melt.
Sea levels are going to rise.
Species are going to go extinct.
Hurricanes are going to become more frequent and stronger.
Lakes are going to warm and become shallower.
Heatwaves will become more common and more powerful.
Rain patterns will change.

But if we do take action, the effects of these will be limited.

Scientists Tracking Atlantic Current

Atlantic (ToGW) - Scientists are now tracking the Atlantic Meridional Overturning Circulation with a sense of urgency.

The Atlantic Meridional Overturning Circulation -- fondly known as the conveyor belt – was featured in “An Inconvenient Truth” and in “The Day After Tomorrow” as a force that could wreak havoc on the climate of Europe and North America if slowed down.

Now scientists are taking detailed measurements of its massive flows.

The current is called the conveyor belt because it forms a giant loop from the Gulf of Mexico to Iceland and back. Warm water (the Gulf Stream) flows near the surface of the ocean along the east coast of the United States. It then veers northeast towards Greenland.

There it cools and desalinizes -- becomes less salty -- from the fresh water melting off Greenland glaciers (see The Day After Tomorrow).

Some scientists have suggested that the increasing desalinization of the current could have cooling effects on North America and Europe. Others have predicted that the desalinization could make slow the effect of global warming in current’s area.

Arctic Sea Ice to Hit Record Low

Arctic (ToGW) - There is a 92% chance that Arctic sea ice will have melted to a record low, partially due to global warming, according to researchers at the University of Colorado.

They had originally predicted a 33% chance for the record to occur in April, but later revised their forecast. Their current prediction stands at a 92% chance for the ice to be at its lowest levels in September.

The university said man-made global warming was partially to blame.

The Colorado University Boulder department used satellite data from the Department of Defense and from the National Oceanic and Atmospheric Administration for the ice forecasts.

Plug-in Hybrid Video

Flesh-Eating Disease Is On The Rise Due To Global Warming

Scientists at the University of Hull are working on an improved treatment for a debilitating flesh-eating disease which is on the rise due to global warming.

Should global warming continue to ravage our planet at current rates, the numbers of people suffering Leishmaniasis, a flesh-eating and sometimes fatal disease will increase dramatically. Leishmaniasis is caused by a parasite transmitted via sand fly bites usually found only in tropical climates. Rising temperatures will increase the number of countries the sand fly colonises, moving further north and through Europe.

Due to travel and tourism, nations affected are already on the increase. Military personnel in Iraq and Afghanistan are also exposed to the conditions associated with contracting Leishmaniasis.

Dr Ross Boyle, lead researcher on the project at the University of Hull said, “Global warming and the military presence in countries such as Iraq and Afghanistan mean that this horrific and debilitating disease is affecting more people than ever before. My co-investigator, Dr Tim Paget at the Medway School of Pharmacy, Hull PhD student Carrie-Anne Bristow and myself wanted to work towards finding a significantly better treatment.”


Source: ScienceDaily
Image courtesty University of Hull.