Showing posts with label power. Show all posts
Showing posts with label power. Show all posts

Wednesday, August 20, 2008

IKEA to Carry Solar Panels and More


Eponymous big-box colossus IKEA has shown some great green developments lately, from flat-pack bike trailers to eco-friendly lines of housewares. Now the patent purveyor of all things flat-pack has announced plans to invest $77 million into its GreenTech energy fund with the goal of eventually producing solar panels, efficiency meters, and energy efficient lighting. Granted its massive distribution network, IKEA’s uptake of green tech could pose a monumental shift in the accessibility and affordability of these technologies.

Read more from inhabitat.

The US -- a World Leader in Wind Power Generation... Kinda

According to the American Wind Energy Association (AWEA), the capacity the US has for generating wind power is expected to increase 45% in 2008. America’s currently installed capacity stands at 19,549MW, up a total of 2,726MW from the end of 2007. Thanks to this number, AWEA is announcing that America is now the US world leader in wind electricity generation.

However this is an announcement based on stats that AWEA is hoping the rest of the world won’t look at too hard.

According to AWEA’s second quarter 2008 market report, they bill the US as the new world leader in the generation of wind power electricity. Looking at Germany’s capacity, for example, sees them with a total of 23,000MW, but never using that full capacity. Apparently the winds in America are stronger, and thus max out the US capacity.

But one important little factoid has been left out of this announcement, allowing the AWEA to make a perfectly legitimate statement, but based in marketing reality.

The US may have a capacity of 19,549MW, expected to grow another 4774MW by the end of this year, but it also has a population of 304.8 million people living on a total area of 9.8 million square kilometers of land. Germany, on the other hand, has only a population of 82 million and a total area of 357,000 square kilometers.


Via CleanTecnica

Tuesday, July 15, 2008

Dyeing to Boost Solar Efficiency by 50%

MIT has perfected a dye technology that could change the solar world as we know it.

The most efficient form of solar technology today is (arguably) extreme concentrated photovoltaics, essentially solar panels placed under a magnifying glass. But the problem with these systems is heat.

Concentrated sunlight can melt silicon solar panels unless you include specialized cooling systems. Cooling technology costs money, and the panels require expensive tracking mechanisms to follow the sun through the day. MIT’s new solar system bypasses the heat and tracking problems all together.

Thin coatings of organic dyes absorb sunlight and redirect favored wavelengths into a pane of glass. The light is aimed and concentrated towards the edge of the pane where small solar panels are located. The concentrated light allows the panels to produce the maximum possible amount of energy all day, every day without cooling systems or complex tracking mechanisms.

“In addition, the focused light increases the electrical power obtained from each solar cell “by a factor of over 40.”" According to Marc A Baldo, an associate professor at MIT who helped lead the project. For more technical details, you may need an AAAS membership to read the Science article.
Three Reasons Why This Could Rock the Solar World:

1) It’s Easy: The technology is neither complex or difficult to manufacture.
2) Upgrade Existing Solar
3) It’s Coming Soon: MIT claims this technology could be ready for commercial production within three years.

Read details from Clean Technica

Thursday, May 22, 2008

Avoiding Power Vampires



we're talking about vampire power, phantom loads, idling standby current, and wall warts. They all basically refer to the same thing: electronic devices with two sharp, pointy teeth that latch into your wall sockets and suck blood...err...electricity all day, all night, whether on or "off," whether charging batteries or not. These devices include TV's, VCR's, DVD players, answering machines, iPods, cell phones, stereos, laptops, desktops, anything with a remote, anything with a charger, anything with a clock display. They are everywhere. Lurking.

Top 10 ways for you to fight the vampires

1. Unplug your devices
2. Reduce your demand
3. Use the other off switch
4. Plug your devices and chargers into a power strip
5. Remove chargers from the wall when you're not charging
6. If you're in the market for new electronics, buy Energy Star qualified.
7. Get a phone that tells you to unplug it.
8. For your various computer accessories, try a smart strip.
10. If you're up for a whole house project, check out GreenSwitch

Basics of vampire power

Most people think that when you turn something off, it actually turns off. Most people assume that it stops drawing power. Unfortunately, that's not true in the case of most electric devices. Most of them just hover in standby mode, waiting for you to 'turn on' the power again.

A 1999 study in New Zealand conducted by the Energy Efficiency and Conservation Authority indicated that 40% of microwave ovens used more electricity to power the clock and the keypad over the course of the year than actually heating food. Big screen TV's (and their respective cable boxes and satellites) up to 30 watts when off. A computer left turned on can potentially draw as much current as a refrigerator. And what about those chargers? Even when your cell phone (or other battery operated device) isn't charging, even if it's not even plugged in, it's still drawing power. It may even add as much as 10% to your energy bill.

This is bad news for your wallet and bad news for the environment. Studies conducted by the Lawrence Berkeley National Laboratory estimate that standby power consumption in the US accounts for 5% of all residential power consumption. That means Americans spend more than $3.5 billion annually on wasted power. It also means that our standby power is responsible for 27 tons of carbon dioxide emissions.

The International Energy Agency (IEA) estimates that globally standby power is responsible for 1% of carbon dioxide emissions (to contextualize that number, it is estimated that 2-3% of CO2 emissions are from air travel). And let's be honest. Those numbers are probably growing given the affinity many of us have for new gadgets and fancy appliances.

Read from Green Home.

New York’s First Solar Powered Ecoeatery


1. Solar panels
2. Food truck
3. Kids corner
4. Batmobile
5. Rain water collection
6. Place settings
7. Fountain
8. Recycled aluminum
9. Recycling & composting
10. Picnic tables
11. Rain water gutter
12. Reclaimed doors

Created by artist and restaurateur Sean Meenan, Habana Outpost was built on the principle of social responsibility. Our mission is to show respect for the community, the environment and the arts in a setting that is always fun and accessible. With forward-thinking design and business practices we have created a space where neighbors can gather, learn and create.

Click on to the EcoEatery Habana Oupost.

Tuesday, May 20, 2008

Homemade power banishes the bills



Charmaine Watts hasn't had a power bill for eight years.

Her family of two adults and three children are one of hundreds around the country generating their own electricity.

With power prices on the rise, the $20,000 the Watts spent installing solar panels, a small wind turbine, storage batteries and wiring is starting to look like a good investment.

"I don't need to worry about power cuts," said Ms Watts. "It's just like a normal house. I flick the switch on my computer or my DVD player and away I go."

Watts is the head of the Sustainable Electricity Association of New Zealand, a group representing small-scale wind, hydro and solar power generators. Nobody knows exactly how many families generate their own power, but together it's thought they make between 5 and 6 megawatts of power a year - a drop in the bucket when measured against Meridian's planned West Wind wind farm near Wellington and its 142 megawatt production.

"Anyone with a roof has the potential to make their own electricity."

Mr Prior said solar generation would be affordable for most people only if the Government followed Germany and Australia and subsidised renewable power. "The market exploded in Germany. Manufacturers couldn't make enough panels," said Mr Prior. "The trouble here is the Government gets a return from state-owned renewable generators like Meridian Energy, so there's not much incentive to provide subsidies."

"We've saved something like 10,000 tonnes in carbon dioxide since 2000 by using natural, renewable energy."

More from the NZ Herald.

Monday, May 19, 2008

U.S. Can Boost Clean Wind Power for 2 Cents a Day per Household


May 17, 2008 | A stunning new report just issued by the Bush administration finds that for under 2 cents a day per household, Americans could get 300 gigawatts of wind by 2030. That would:

  • Reduce carbon dioxide emissions from electricity generation by 25 percent in 2030.
  • Reduce natural gas use by 11 percent.
  • Reduce cumulative water consumption associated with electricity generation by 4 trillion gallons by 2030.
  • Support roughly 500,000 jobs in the U.S.

The report doesn't mention that this would require adopting policies the Bush administration opposes. But that's what elections are for.

Wind power is coming of age. In 2007, some 20,000 megawatts of wind were installed globally, enough to power 6 million homes. Sadly, most wind power manufacturers are no longer American, thanks to decades of funding cuts by conservatives. Still, new wind is poised to be a bigger contributor to U.S. (and global) electricity generation than new nuclear power in the coming decades. As I have written earlier, concentrated solar power could be an even bigger power source, and it can even share power lines with wind.

That means we can realistically envision an electric grid built around renewables: electricity with no greenhouse gas emissions, no fuel cost (and no future price volatility) and no radioactive waste. But while it is poised to happen, and other governments are working hard to claim market share, America will need a bold president to ensure leadership in these major job-creating industries of the 21st century.

Read more from Salon.

$2 Billion Wind Turbine Order from Texas Oilman



Texas oilman T. Boone Pickens has placed an the largest ever order for wind turbines: he ordered 667 wind turbines from GE, each costing $3 million dollars, making the total order $2 billion. Pickens plans to develop the world’s largest wind farm in the panhandle of Texas.

The $2 billion order is just one quarter of the total amount he plans to purchase. Once built, the wind farm would have the capacity to supply power to over 1,200,000 homes in North Texas. Each turbine will produce 1.5 megawatts of electricity. The first phase of the project will produce 1,000 megawatts, enough energy to power 300,000 homes. GE will begin delivering the turbines in 2010, and current plans call for the project to start producing power in 2011.Ultimately, Picken’s company, Mesa Power, plans to have enough turbines to produce 4,000 megawatts of energy, the overall project is expected to cost $10 billion and be completed in 2014.

Via MetaEfficient.

Rochester's Omega Laser Brings Us Closer to Fusion Power


The University of Rochester will mark another important step in the effort toward attaining sustainable fusion, the ultimate source of clean energy, Friday, May 16. University President Joel Seligman, along with special guests, who include U.S. Senator Charles Schumer, U.S. Representative Thomas Reynolds, and Undersecretary and National Nuclear Security Administration Administrator Thomas D'Agostino, will dedicate the new Omega EP (Extended Performance) laser facility at the Robert L. Sproull Center for Ultra High Intensity Laser Research at the Laboratory for Laser Energetics (LLE).

The Omega EP comprises a new set of four ultra-high-intensity laser beams that will unleash more than a petawatt—a million billion watts—of power onto a target just a millimeter across. Working in conjunction with LLE's original 60-beam Omega laser, the Omega EP will open the door to a new concept called "fast ignition," which may be able to dramatically increase the energy derived from fusion experiments and provide a possible new avenue toward clean fusion power. If successful, fast ignition could lead to the highest energy densities ever achieved in a laboratory.

More from the University of Rochester.

Quietly, wind farms spread footprint in U.S


While growth in ethanol use as an alternative fuel has had a big impact on rural America, wind power has also been growing steadily for the past three years, with wind farms like this one springing up all over the windy expanse of the Great Plains and beyond.

While only 1 percent of U.S. electricity comes from wind, it is attracting so much support these days that many in the industry believe it is poised for a growth spurt.

"These are pretty heady times," said Randall Swisher, executive director of the American Wind Energy Association, which held an investment conference April 30 in Iowa that drew more than 600 attendees.

"People are finally starting to see the data about what is happening to the world's climate and that is really having an impact," said Swisher.

Read more from Reuters.

Friday, May 16, 2008

Solar Lounge Table


Although there are many projects involving the development of devices that produce renewable energy. Solar panels are not very efficient, but it’s the first step to a clean Earth and they are relatively cheap and easy to replace. Their drawback is that for the moment they can’t compete against fossil fuels therefore not many love them (I think these people don’t care about Earth).

If we can’t produce enough energy to power an entire city, at least we can produce energy to power our gadgets and electronic devices. One interesting idea is the SOLo Lounge Table which charges your gadgets with renewable energy. SOLo Lounge Table was designed by Intelligent Forms and it’s basically a solar power work table. Now, it’s easier for you and you have to love the fact that you will power your laptop directly from the table that you are working on.

More of a design concept than a practical idea, but interesting. Via ecofuss.com.

Whales Inspire New Efficient Blade Technology



He discovered that these bumps, called tubercles, are this creature's secret weapon, allowing a whale the size of a school bus to make tight turns and capture prey with astonishing agility.

To understand this phenomenon, imagine airplane wings. Pilots increase the angle of the airfoil to provide more lift. But when the angle gets too steep, the air current drags on the wing, suddenly reducing the lift and causing the aircraft to stall.

Fish found that humpback fins act a little differently. He and his colleagues tested a scale model of the whale flipper in a wind tunnel. To their surprise, the experiments revealed that significant drag occurs at a much steeper angle on the humpback fin than it does on a sleek flipper. Each tubercle redirects and channels air over the flipper, creating a sort of whirling vortex that actually improves lift, Fish says.

"These bumps were thought of as anatomical anomalies, but they do modify the flow and they do it in ways that are beneficial to the whale," says Fish.

The technology can be used in a huge range of machines such as turbines, compressors, pumps, and fans that use blades or rotors – most anything that cuts through air, water, steam or oil, says Fish.

"There was a 20 percent drop in energy use, a significant drop in noise decibels, and overall distribution of air was more even," says Envira-North CEO Monica Bowden. The increased efficiency also means the new fans will have five blades instead of 10, making them cheaper to manufacture.

More from MetaSurfing.

Solana: The world largest solar plant



This project is the result of the contract which Abengoa Solar has signed with Arizona Public Service (APS), the largest electric company in Arizona, to build and operate what will be the largest solar power plant in the world.

For the Solar Business Unit, this contract represents the construction of the first concentrating solar power plant for producing electric power in the United States.

The plant will be installed about 100 kilometers southwest of Phoenix, near Gila Bend. Solana, with 280 MWe of power output capacity, is based on parabolic trough technology and thermal storage using molten salts. When operation starts up, the plant will have the capacity to supply power to 70,000 homes and will eliminate around 400,000 tons of CO2.

Details from Abengoa Solar.

Startup Makes Cheap Solar Film Cells ... With an Inkjet Printer


This year could bring the Silicon Valley-funded renaissance in solar power we've all been waiting for. First, San Jose-based Nanosolar began delivering its affordable thin-film solar coating, followed by a construction boom in American solar thermal power plants—essentially the reflective equivalent of geothermal power. Now, for the first time, the solar cell revolution is arriving by droplet.

Konarka Technologies, the Massachusetts-based company we first recognized with a 2005 Breakthrough Award for its affordable Power Plastic solar film, said this week that it has successfully manufactured those thin solar cells using an inkjet printer. In addition to decreasing production costs because it relies on existing inkjet technology, the printable Power Plastic cells can be applied to a range of small-scale, highly variable power opportunities, from indoor sensors to small RFID installations.

Read on Popular Mechanics.