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Power Storage

First 20 MW Flywheel Plant Going Online

Next month, New York State will have a completed 20 megawatt flywheel energy storage system connected to its electrical grid to provide frequency regulation and help maintain the stability of the indian levitra generic electrical grid.

The system is already up and running at 90% capacity, and the installation of the remaining units to bring it to full capacity is expected to be completed later this month.

We've been following developments, particularly with this project as it has progressed, and we will continue to be interested in seeing how this first large-scale installation performs.

Flywheel energy storage is not so much a battery as it is a compensating mechanism to balance the load on real viagra without a prescription the grid as power plants come on-line or go off-line. Electrical demand varies over the course of a day, and sometimes can rise (or fall) more quickly than power plants are able to respond. Grid storage systems such as this can help ease those transitions, rather than relying on peak power plants running on natural gas or other carbon emitting fuels.


Liquid Fuel for Electric Vehicles

An advance in the technology for flow batteries may lead to systems for electric vehicles (EVs) that allow them to be refueled with liquid, much like conventional combustion vehicles do now. MIT researchers have developed a semi-solid flow cell which offers 10 times the performance of liquid chemical flow batteries.

Flow batteries are similar to fuel cells but they differ in that the order generic levitra reaction in flow batteries is much more readily reversible. Flow batteries have been used for large-scale energy storage and grid load balancing applications, but until now, they have not had the energy density to viagra cost in canada make them competitive for use with EVs.

Since the electrolytes for flow batteries are kept on-board the vehicle, rather than being consumed and exhausted like more conventional liquid fuels, the process of refueling the vehicle would also include emptying and collecting the old electrolyte for reprocessing. It would likely take longer than refueling with a combustion fuel, but could be faster than even quick-charge electrical chargers.

Because much of the electrolyte material is kept in separate storage, flow batteries are not susceptible to self-discharge that conventional batteries are. Flow batteries may also offer a better way of levitra tablets extending the current range limits of electric vehicles. The size and cost of a battery system could be half that of current EV battery systems.

Thanks, Trek!


Energy Bag Offers New Storage for Wind Power

Canadian firm Thin Red Line Aerospace is working on the first test deployment of its energy storage system for use with off-shore wind turbines. The Energy Bag provides power storage as "undersea compressed air energy storage" (CAES) to store compressed air deep underwater, and then release it again to drive generators when more power is only today where can i purchase viagra needed. Storing power for peak load demand or for periods of intermittent wind are an important part of developing a responsive wind generation system that can effectively contribute to the grid at all times.

The process is conceptually straight forward: Wind turbines fill the balloon-like underwater bags with compressed air that later drives electrical generators on demand. While initial application is ideally linked to floating wind turbines, excess electricity from the grid—or from clean energy sources such as tidal and wave power—can also be used to drive compressors to fill the energy bags. The technology is especially suited to viagra no prescription required countries with relatively deep waters near their coasts.

Instead of where do you get viagra from engineering a heavy pressure vessel to store large amounts of highly compressed air, the Energy Bag uses a deep water location to serve as the pressure vessel to store the compressed air at extremely high pressures. The prototype Energy Bag itself weighs only 75 kilograms (165 pounds), but is able to displace 40 tons of seawater. It will be located about 600 meters (2000 feet) below the surface, where pressures are 60 to 70 times atmospheric pressure. The power storage in just one bag can be considerable. "At depths of around 600m, there will be enough pressure in one 20m-diameter bag to store around 70MW hours of energy. That’s around the same as 14 hours of energy generation from the largest offshore turbines currently in operation."

The Energy Bag has the best price on propecia potential to be orders of magnitude less expensive than industrial battery storage systems, and even just a fraction of pumped hydro storage systems. Not every location has deepwater locations suitable for this power storage, but several areas in Europe in particular have both good wind potential and deep water close by offshore as potential locations where this could be implemented.

via: Great Lakes Energy News


Cell Phones Could Be Talk-Powered

How cool would it be if your cell phone could gain all the power it needed to fuel your conversations by the actual sound of levitra professional 100 mg those conversations?  Scientists at Sungkyunkwan University in Seoul, South Korea think they've developed the technology that could soon have that very application.

The technology produces energy from the vibrations caused by sounds.  The prototype consists of tiny zinc oxide wires sandwiched between two electrodes.  A sound pad on top vibrates when hit by sound waves which causes the zinc oxide strands to compress and release.  That generates an electrical current that charges the battery.

Currently, the prototype has only been able to convert sound at high decibel levels like loud traffic to generate about 50 millivolts of electricity, but the scientists are hoping that changing the the best site how can i buy viagra in canada material the wires are made of will allow more energy to be produced from lower sound levels.

via The Telegraph


3-D Lithium-Ion Batteries Are Lighter and Charge in Minutes

A new type of lithium-ion battery that features a 3-D interior structure is able to recharge in just a few minutes, can be discharged over twice as many times as traditional lithium-ion batteries and is thinner and lighter than existing versions -- essentially the dream battery for electric cars.

The new battery prototype was presented at this week's national meeting of the American Chemical Society.  Conventional lithium-ion batteries consist of electrodes stacked in thin layers, which creates many of its problems like slow charging and limited discharging and a tendency to overheat.

The new battery reconfigures this arrangement by using copper antimonide nanowires arranged into a tightly-packed 3-D structure similar to bristles on a hair brush.  The nanowires have more surface area and enter site cialis no rx can store twice as many lithium ions and they're more stable and heat resistant than the graphite electrodes used in existing batteries.  The result is uk viagra prices a battery that recharges in 12 minutes instead of two hours and has double the lifespan.

The current prototype is the size of a cell phone battery, but the creators hope to scale up the technology to be used in other gadgets like laptops and, eventually, electric cars.

via Physorg


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