Would you believe that two brick-sized fuel cells could power an entire house cheaply — and with almost no carbon-dioxide emissions? Would you believe that every American house could be using these clean-energy generators to go off the grid "within five to 10 years?" Believe it, says K.R. Sridhar, CEO of the Sunnyvale, Calif.–based start-up that's producing the "Bloom Box." What is this mysterious box that everyone's talking about?
What does a Bloom Box look like?
Each box is a brick-size stack of thin ceramic plates that have been coated with a green and black ink Sridhar developed.
How does it work?
The individual ceramic plates in the stack act as fuel cells, creating energy through a chemical reaction between oxygen and a clean-energy fuel source such as natural gas or biofuels. Sridhar says two brick-sized stacks of these cells will power a typical U.S. home, while a single stack could power a smaller European home or several houses in a developing country. A stack of 64 cells will power a Starbucks.
How did Sridar invent this technology?
He says it began over a decade ago when he was employed by NASA to devise an oxygen-creation machine that could sustain life on Mars. After NASA scrapped his program, he reverse-engineered the device to produce energy. He says the entire development process cost "in the ballpark" of $400 million.
Sounds promising, but does the Bloom Box actually work?
It has reportedly been working splendidly — at least, on a grand scale — for months. Several large companies including FedEx, Google, Wal-Mart, and eBay, have been using refrigerator-size Bloom Boxes with encouraging results. EBay reports that it's saved $100,000 in energy costs since it started using five mega–Bloom Boxes last year. Google has been Blooming for 18 months. Still, skeptics like University of Washington chemist David Ginger say this existing data is short on technical details: "It is of the 'trust us, we're smart, this is revolutionary' nature."
So what's the real catch?
The price. Currently, these business-size units cost a hefty $700,000 to $800,000 a pop. Sridhar says he will eventually be able to get the price for a brick-size home unit down to $3,000. But will that be low enough? Bloom's biggest challenge, says GreenTech editor-in-chief Michael Kanellos, is making sure people don't "run away at the price tag." This technology "needs to be cheaper than solar. It needs to be cheaper than wind."
Is Sridar's forecast that we'll all own Bloom Boxes in 10 years realistic?
GreenTech's Kanellos predicts there's a 20 percent chance that we'll have Bloom Boxes in our homes in 20 years — but thinks that they'll be labeled "General Electric."
This article was originally published on February 23, then updated on August 31
SEE THE WEEK'S LATEST COVERAGE OF GREEN ISSUES:
• Climate change: Time to eat Fido?
• Nano: The world's cheapest car
• Briefing: The hype - and hope - of clean coal
• Green power's hidden agenda
THE WEEK'S AUDIOPHILE PODCASTS: LISTEN SMARTER
- The 11 worst fast food restaurants in America
- 7 things the world's happiest people do every day
- 7 grammar rules you really should pay attention to
- Why are so many parents being arrested?
- 9 things you probably didn't know about the moon
- Israel has only two choices: Eliminate the Palestinians or make peace
- What I learned from totally unplugging and shutting up for three days
- The biggest lesson Obama failed to learn from Bush
- Why America is duty bound to help Iraqi Christians
- What if The Purge was real?
Subscribe to the Week