Building a world of
resilient communities.

MAIN LIST

 

Solar & renewables - Dec 9

Click on the headline (link) for the full text.

Many more articles are available through the Energy Bulletin homepage


Emerging Energy Technologies Summit in Santa Barbara February 9-10

Technology Management Program, University of California at Santa Barbara
This year’s Summit will take an unbiased look at how our nation makes the transition from dependency on carbon-based fuels to a sustainable, alternative fuels-based future. Experts from around the globe will come together over a two-day period to present possible alternative energy solutions, examine the trade-offs and barriers associated with bringing these solutions to market, and work to develop ways of overcoming these barriers.

The Summit, a sold-out event in its 2006 inaugural year, allows participants to join with financiers, business leaders, policy makers, scholars, and engineers to discuss the development and creation of profitable and practical alternative energy technology solutions that meet the nation’s increasing energy demands.
(Dec 2006)
Plenary speaker is Paul Roberts, author of "The End of Oil." -BA


China's Sunshine Boys

Thomas Friedman, New York Times via Times Herald Record
So here's a little news quiz: Guess who's the seventh-richest man in China today, with a fortune estimated by Forbes magazine at $1.43 billion?

Answer: Shi Zhengrong. Now guess what he does. Real estate? No. Banking? No. Manufacturing for Wal-Mart? No. Construction? No.

Shi is China's leading maker of silicon photovoltaic solar cells, which convert sunlight into electricity. Yes, the seventh-richest man in China is a green entrepreneur! It should only happen in America.

Shi thinks, as I do, that renewable clean power — wind, solar, biofuels — is going to be the growth industry of the 21st century, and he wants to make sure that China and his company, Suntech Power Holdings, are the leaders. Only 43 years old and full of energy himself, Shi hopes to do for solar energy what China did for tennis shoes: drive down the cost so that millions of people who could not afford solar photovoltaic panels will be able to do so.

As an environmentalist, I wish him well. As an American, I worry that if we don't start doing everything we can to develop our own clean power, we're going to miss out on the green industrial revolution.
(6 Dec 2006)


New World Record Achieved in Solar Cell Technology

US DoE
New Solar Cell Breaks the “40 Percent Efficient” Sunlight-to-Electricity Barrier
~~
U.S. Department of Energy (DOE) Assistant Secretary for Energy Efficiency and Renewable Energy Alexander Karsner today announced that with DOE funding, a concentrator solar cell produced by Boeing-Spectrolab has recently achieved a world-record conversion efficiency of 40.7 percent, establishing a new milestone in sunlight-to-electricity performance. This breakthrough may lead to systems with an installation cost of only $3 per watt, producing electricity at a cost of 8-10 cents per kilowatt/hour, making solar electricity a more cost-competitive and integral part of our nation’s energy mix.

...Attaining a 40 percent efficient concentrating solar cell means having another technology pathway for producing cost-effective solar electricity. Almost all of today’s solar cell modules do not concentrate sunlight but use only what the sun produces naturally, what researchers call “one sun insolation,” which achieves an efficiency of 12 to 18 percent. However, by using an optical concentrator, sunlight intensity can be increased, squeezing more electricity out of a single solar cell.

The 40.7 percent cell was developed using a unique structure called a multi-junction solar cell. This type of cell achieves a higher efficiency by capturing more of the solar spectrum. In a multi-junction cell, individual cells are made of layers, where each layer captures part of the sunlight passing through the cell. This allows the cell to get more energy from the sun’s light.
(5 Dec 2006)

What do you think? Leave a comment below.

Sign up for regular Resilience bulletins direct to your email.

Take action!  

Find out more about Community Resilience. See our COMMUNITIES page
Start your own projects. See our RESOURCES page.
Help build resilience. DONATE NOW.

 

This is a community site and the discussion is moderated. The rules in brief: no personal abuse and no climate denial. Complete Guidelines.


Peak Oil Review: A Midweek Update - 24th Aug 2016

 A midweek update. It has been a volatile three days for oil with …

How We Went on an Energy Diet, and What We Lost (and Gained!)

In which I reveal the changes in our household energy usage from 2003 …

Five Billion Years of Energy Supply: the "Stereosphere" and the Upcoming Photovoltaic Revolution

Both the biosphere and the stereosphere use solar light as the energy …

Peak Oil Review - Aug 22 2016

 A weekly roundup of peak oil  news, including: -Oil and the …

Limitless imagination and physical limits

How do we distinguish those ideas that are forever going to remain in the …

Some Reflections on the Twilight of the Oil Age (part III)

The impact of the Tooth Fairy Syndrome is all the more felt in the main …

Peak Oil Review: A Midweek Update - 18th Aug 2016

 A midweek update. Oil prices climbed for the fifth straight day on …