7

Solar breakthrough simplifies storage

A worker staples a roll of photovoltaic solar panels on a roof of a warehouse in Laudu-LaArdoise, France, in February 2008.

To view this content, Javascript must be enabled and Adobe Flash Player must be installed.

Get Adobe Flash player

TEXT OF STORY

Kai Ryssdal: Think about this fact for a second as you consider the high price of fossil fuels: Enough sunlight hits this planet every hour to meet its energy needs for an entire year.

Energy crisis solved, right? Not to mention global warming, too. Except it's not that easy. The thing about solar power is that it's inefficient and expensive to store kind of power when the sun's not shining.

Today, a researcher at MIT said he's found a way around the darkness, and that has entrepreneurs knocking at his door.

Marketplace's Dan Grech reports.


Dan Grech: MIT professor Daniel Nocera has discovered an inexpensive way of using the sun's energy to split water into hydrogen and oxygen gases. After the sun goes down, the gases can be recombined to create electricity. The process is called electrolysis.

Nocera says until now, electrolysis required expensive transformer boxes.

Daniel Nocera: This looks like the real thing. It's as cheap as you can get, it's easy to manufacture and unlike those big transformer boxes, this works in a glass of water.

MIT has patented the process and is forming a company to develop the technology for market. Nocera also published his discovery in today's issue of the journal "Science."

Nocera: I open-sourced it right away. Because it's easy to do, you'll have the entire community across the world begin working on this.

MIT has already heard from solar firms interested in licensing the technology.

Solar energy is the hottest of the green technologies, which include biofuels and wind power, but right now solar accounts for less than 1 percent of energy use in the U.S.

Monique Hanis is with the Solar Energy Industries Association.

Monique Hanis: We have companies all over the country and labs that are working to bring down the cost of solar all along the supply chain.

More than half a billion dollars in venture capital poured into solar technology last year and investment is on its way to another record in 2008.

I'm Dan Grech for Marketplace.

About the author

bruce miller's picture
bruce miller - Sep 15, 2009

Using urine in electrolysis considerably reduces currents, increases H2,O2 required! Going to bed at night, as we did pre-industrial Revolution negates the need for power at night in the first place, save for a very little night light for peeing! the "Fourth Turning" is upon us, The Age of Aquarius about to open, the paradigm shift is already felt in the Capitalists bones,his investments dieing! The markets will finally lose their grip, Corporatism will die, the dollar disappear from the face of the earth,yet life will go on! A peaceful, godly existance without guns or crimes, and Mother nature will reclaim the America's for herself, China a nuclear wasteland to follow, will take longer, and the "Old Girl" will never flirt with mankind again!

Will Cunningham's picture
Will Cunningham - Aug 14, 2008

Until the oil companies can carve out their unfair share it will be an uphill battle, but one that needs to be fought. The electrolosis is not new, so what is the breakthough? Storage of Hydrogen needs carbon fiber tanks, other than that just infrastructure. Find the benefit for oil companies and we are done.

Jason Barbaria's picture
Jason Barbaria - Aug 2, 2008

see:

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=...

for details of the patent, including the date of 2002.

Jason B's picture
Jason B - Aug 2, 2008
Jason B's picture
Jason B - Aug 2, 2008
Fred Carew's picture
Fred Carew - Aug 1, 2008

Sure would have likes to hear what the advance was. What makes this any more than the old highschool experiment?

Frank Varnedoe's picture
Frank Varnedoe - Jul 31, 2008

Wonderful news about the new electrolysis technique.
I have a concept for an ocean wave electrical generator and am looking for some help to create it.
My vision is to see hydrogen farms on the ocean utilizing wave energy to produce electricity to use electrolysis to produce hydrogen and oxygen.
Tankers stop by periodically to pick up the hydrogen harvest.
Seems like a natural adjunct to an oil drilling platform.