Bloom Energy raises the curtain on its fuel cell technology

Feb 23, 2010 | Posted by: Mr_Bill | Full story: www.mercurynews.com

fuel cell that would allow homes and businesses to generate their own electricity

Bloom Energy, a Sunnyvale startup that has been working on a fuel cell that would allow homes and businesses to generate their own electricity, is raising the curtain on its technology this week.

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Eleanor

Buffalo Grove, IL

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#1
Feb 23, 2010
 

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Truly remarkable technology. Saw a preview on a news-show. It has great potential to be THE alternative green energy solution

“It's a Brand New Day”

Since: Feb 06

New Rochelle

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#2
Feb 23, 2010
 

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Eleanor wrote:
Truly remarkable technology. Saw a preview on a news-show. It has great potential to be THE alternative green energy solution
I want one, but what wwill they cost?
Cons- go figure

United States

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#3
Feb 23, 2010
 

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Its a liberal conspiracy. Drill now

“The Buybull is innerrrent.”

Since: Jun 08

Philadelphia, PA

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#4
Feb 23, 2010
 

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Cons- go figure wrote:
Its a liberal conspiracy. Drill now
Hey retardate, the fuel cell still uses natural gas as an input. It just generates electricity efficiently.

Why not do us all a favor and shut up until you have the first clue about anything?

(The maker says the fuel cell can run on solar or biomass or other things but without explanation. So it's carbon based inputs for now.)

“The Buybull is innerrrent.”

Since: Jun 08

Philadelphia, PA

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#5
Feb 23, 2010
 
Cons- go figure wrote:
Its a liberal conspiracy. Drill now
On second thought, it appears you are being sarcastic. Still, I think a clearer indication would be warranted.
Clyde

Deer Park, TX

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#6
Feb 23, 2010
 
The Bloom Box's major technological breakthrough is the use of dirty hydrogen instead of pure hydrogen required in a traditional fuel cell. A traditional fuel cell combined pure hydrogen with the oxygen it pulled out of the air to make electricity. Splitting water into its components of oxygen and hydrogen for use in fuel cells required energy which decreases the energy efficiency of the fuel cell for power use.

The Bloom box apparently can use natural gas or biogas which is methane gas generated from decomposing organic materials, and combine the dirty hydrogen with oxygen pulled from the air to generate electricity. It also doesn't use the expensive metals required in a traditional fuel cell.

The reference to using solar power to fuel the Bloom Box is based on using either solar cells or windmills to generate electricity to split water to obtain hydrogen. The major drawback in renewable solar power is the storage problem and Energy Returned on Energy Invested (EROEI) value. For petroleum at its peak it was one barrel of oil needed to produce 100 barrels of oil (1:100), this value has gone done as oil reserves have fallen.

Commercial power is based on alternating current (AC). Solar cells generates direct current (DC) which can be stored in a battery, but the DC must be converted to AC which will cause loss of power in the form of heat. Windmills generate AC power which can be connected to power grid, but will only supply power based on wind speeds and not on demand requirements. Excess windmill generated AC power must be converted to DC before it is stored in batteries. The DC battery power must then be converted back to AC causing more power loss in the form of heat. Using solar energy to generate hydrogen which can be stored and used in the Bloom Box might be more efficient.

The Bloom Box is major breakthrough, but it's not a universal remedy to our dependence on fossil fuel. No data had been mention on the EROEI of the Bloom Box system. The Bloom Box doesn't create energy; it just increases the existing hydrogen energy sources such as natural gas, biofuel, or solar power's EROEI value.

“It's a Brand New Day”

Since: Feb 06

New Rochelle

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#7
Feb 24, 2010
 
Clyde wrote:
The Bloom Box's major technological breakthrough is the use of dirty hydrogen instead of pure hydrogen required in a traditional fuel cell. A traditional fuel cell combined pure hydrogen with the oxygen it pulled out of the air to make electricity. Splitting water into its components of oxygen and hydrogen for use in fuel cells required energy which decreases the energy efficiency of the fuel cell for power use.
The Bloom box apparently can use natural gas or biogas which is methane gas generated from decomposing organic materials, and combine the dirty hydrogen with oxygen pulled from the air to generate electricity. It also doesn't use the expensive metals required in a traditional fuel cell.
The reference to using solar power to fuel the Bloom Box is based on using either solar cells or windmills to generate electricity to split water to obtain hydrogen. The major drawback in renewable solar power is the storage problem and Energy Returned on Energy Invested (EROEI) value. For petroleum at its peak it was one barrel of oil needed to produce 100 barrels of oil (1:100), this value has gone done as oil reserves have fallen.
Commercial power is based on alternating current (AC). Solar cells generates direct current (DC) which can be stored in a battery, but the DC must be converted to AC which will cause loss of power in the form of heat. Windmills generate AC power which can be connected to power grid, but will only supply power based on wind speeds and not on demand requirements. Excess windmill generated AC power must be converted to DC before it is stored in batteries. The DC battery power must then be converted back to AC causing more power loss in the form of heat. Using solar energy to generate hydrogen which can be stored and used in the Bloom Box might be more efficient.
The Bloom Box is major breakthrough, but it's not a universal remedy to our dependence on fossil fuel. No data had been mention on the EROEI of the Bloom Box system. The Bloom Box doesn't create energy; it just increases the existing hydrogen energy sources such as natural gas, biofuel, or solar power's EROEI value.
I have found this to be an extraorrdinary inverter,(I have no relationship with the company.)
http://www.outbackinverters.com/product.htm
Travis

Sunnyvale, CA

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#8
Feb 24, 2010
 
Cons- go figure wrote:
Its a liberal conspiracy. Drill now
good point, your moron messiah George W Bush signed the big Drill Butthole Drill Bill that was lofted by Madonna Sarah....

So why aren't you wankers drilling? Go for it....
VOTE NO ON B

San Francisco, CA

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#9
Apr 16, 2010
 
NO on B

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