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Power Storage

Your Prius Can Power Your Home In a Snowstorm

The recent snow and viagra online doctor ice storms in the northeast left hundreds of thousands of buy viagra for women residents without power. In Harvard, Massachusetts, however, one Prius owner found a way to keep the lights and electricity going by using his hybrid as a backup generator.

John Sweeney ran his fridge, freezer, wood stove fan and even his television and lights using his Prius for three days while the power was out in his town. By using an inverter to convert the car's DC power supply into household AC, Sweeney was able to cialis no rx generate 120 volts

The New York Times wrote about this a year ago. The battery in the Prius is able to provide an uninterrupted power supply as long as the engine turns on and off periodically to recharge it. Any car battery can be used this way, but only hybrids start automatically when they need to recharge their battery. As long as the Prius has enough fuel, it can produce three kilowatts of continuous power. That's enough to maintain the basic household electrical needs.

After three days, Mr. Sweeney's Prius used up a mere five gallons of gas to power the were to buy viagra electricity in the Sweeney household - a bargain and a real smart grid solution.

Via The New York Times and WBZTV


Stealthy Startup EEStor Working on Soldier Supersuit

We knew that super-secretive, somewhat-sketchy start-up EEStor was working with Lockheed Martin on SOMETHING. And, yes, that was exciting, since Lockheed doesn't generally work with companies who's technology doesn't work. But now we actually know what they're working on viagra and women (thanks to the sleuthing of the folks at And all of this comes just days after EEStor secured the first patent for its technology.

EEStor, which promises a new kind of energy storage device ten times lighter than lithium-ion batteries looks to be talking to canadian generic viagra on line Lockheed about developing a power source for a wearable computer / body armor for U.S. soldiers. The EEStor unit will actually be a thin layer that surrounds the entire garment, with a thickness between 0.5 and 2 centimeters. Frankly, I really hope these go on sale at the GAP in the next couple years.

While the patent refers to a lithium polymer battery and a fuel cell, it also specifically mentions EEStor and refers to the power storage unit using EEStor's nomenclature the i use it buy levitra uk "electrical energy storage unit."

It isn't really 100% environmental technology in this current application, of course. But if it works in a soldier's body armor, then it'll work in electric vehicles too. Let's hope, for the G.I. Joes and the EcoGeeks, that it does work.


EEStor Gets Patent on Breakthough Mystery Device

Personally, I'm very excited that lithium ion batteries are finally getting advanced enough to find homes in automobiles. But a small company called EEStor is promising "Electronic Storage Units" that will be ten times lighter, hold ten times more power, and cost half as much as lithium ion batteries.

What's more, they'll be able hold enough power to drive a car for 300 miles, charge in less than five minutes (at charging stations, not at home outlets) and will be able to charge and recharge an infinite number of times.

If true, this isn't just great news for the auto's great news for consumer electronics and the power industry as well. The question it true?

Well, one obstacle was overcome today, when EEStor was finally awarded a patent (PDF) on its technology. But a patent can be awarded for technology that doesn't work or isn't viable...they do it all the time. But now, at least, EEStor will be able to control the device if it turns out to be feasible.

It also opens up the window for all of us to look in on their mysterious chemistry a bit. According to the patent the device is canada generic viagra a sort of where to find levitra capacitor that actually contains 31,353 separate capacitors in parallel. These nano-capacitors are basically a ceramic powder suspended in a plastic solution, and we're not going to pretend we understand why they can soak up so many electrons.


South Korea Testing Out Ultracapacitors

In my mind, ultracapacitors and hydrogen play similar roles. They are both advanced, proposed forms of energy storage that always seem just over the viagra india horizon… no matter how far along we travel. With hydrogen, the problem is not the power generating technology itself – fuel cells exist, and they work great. The problem is that we have poor means of storing and distributing the fuel. Ultracapacitors have the opposite problem. The infrastructure for transmitting and recommended site order viagra pill generating electricity is all in place; what we lack are the actual ultracapacitors themselves.

Granted, scientists are hard at work trying to build these ultracapacitors, and with the nanotechnology available to material scientists today, there is good reason to believe it is within our reach. But I’m not such a patient guy, and I still want to see real live examples of ultracapacitors in action.

Looks like I’ll have to go to South Korea, because that’s where ultracapacitors from Maxwell Technologies (of San Diego) were shipped earlier this year, and are now being tested. The South Korean government has hooked them up to a Korean subway system, where they will capture electricity from regenerative braking. A full demonstration of the technology isn’t scheduled to order tramadol without prescription happen until mid 2009, but for now Maxwell claims that tests are going well. They say that they could reduce grid consumption by 20%!

More importantly, if we see real, working, prototypes from Maxwell, that means that car-sized ultracapacitors might not be that far off. An ultracapacitor-powered electric vehicle is better than a lithium-ion powered one, because it can charge in minutes, rather than hours.

Maxwell! Bring some of those ultracapacitors to New York! We’ve got plenty of subways here, let me tell you. In fact, I think I wouldn’t mind the ear-splitting screetch of the 1 Train if I knew that all that braking was going to a good purpose. Well, not as much anyway.

Via Greentech Media


Zinc-Air Batteries

Lithium-ion batteries may be impressive, but some people feel they can do better – with zinc. Power Air, a startup from Livermore, CA, is designing zinc oxide fuel cells. In their fuel cells, zinc is dissolved in an electrolyte solution, and exposure to the air causes zinc oxide to form, releasing electrons and generating electricity. In theory, the zinc oxide can be collected, reduced back to zinc metal and fed back into the cycle.

Zinc air batteries are already used in hearing aids, though companies like Power Air hope to build batteries more suited for power and charging mobile electronic devices. Toyota is buy generic cialis online even researching ways to use zinc-air cells in electric vehicles, though they have put a 2020 timeline on the project, which means we won’t be seeing it any time soon.

As far as the chemistry goes, using zinc is no different than any other fuel cell, or regular battery for that matter (zinc, in fact, is a major component of most alkaline batteries). So what’s so special about it? It has two big advantages over something like lithium. Firstly, it is abundant and cheap, whereas there are fears about the supply of lithium. Secondly, it is safe and recyclable. It also has a relatively high energy density (energy contained per unit of volume).

Of course, it has its drawbacks. How would the zinc actually get recycled? Would battery owners have to recycle it themselves? How much energy would be going into reducing the zinc metal? And how does it make sense to generic levitra brand make a car battery out of zinc? Zinc is far heavier than lithium, and delivers far fewer watts per pound… not ideal for a car.

Guess we’ll leave it to Power Air to show us that a zinc economy is feasible.

Via CNET Green Tech news

Image vie Power Air

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