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More details of the Bloom Box have been shown at a thoroughly handled press conference in California.
Not every company can boast Arnold Schwarzenegger, Colin Powell and the heads of Google and Walmart at its launch. Even more unlikely, the firm in question makes what some may regard as a less than sexy clean energy device.
Bloom box station containing fuel cells that can run on anything from natural gas to the more renewable stuff, Bloom’s device has received the level of hype in Silicon Valley normally reserved for a new product from Apple.
For the past week, newspapers and websites have been filled with rumours about Bloom boxes, as the devices have been nicknamed, invented by former Nasa scientist KR Sridhar.
In bloom box the Fuel cells, which convert hydrogen and oxygen into electricity by an electrochemical process, are a promising source of energy while emitting less CO² and other pollutants, as well as being much more efficient, than burning. But most modern designs use expensive materials, such as platinum, or corrosive chemicals that shorten their lifespan.
The central part which you may call heart of Sridhar’s bloom box is a thin fuel cell made from a plentiful resource, sand. The size of a floppy disk, it is painted with proprietary inks that allow the fuels to react with oxygen from the air, a chemical process that produces electricity.
A single cell can produce about 25W, enough for a low-energy lightbulb, and a stack of cells the size of a brick will power an average home. A single Bloom box, a unit the size of a chest freezer and which contains several stacks of fuel cells, will produce 100KW, enough for 100 homes.
According to Sridhar: “Compared to the US national grid, this is about twice as efficient,” he further added, “So your carbon footprint is about half. If you use a renewable fuel, you’re carbon neutral.” Sridhar has spent 8 years developing the fuel cells and has already sold the first units: the first customer was Google, which uses a Bloom box at its headquarters.
Well other customers include Walmart, Federal Express and Coca Cola. The former US secretary of state, Colin Powell, sits on the board and Bloom has received $400m from venture capitalists.
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