HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Blog

Record 44.7% Solar-Cell Efficiency Achieved

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
Page 1/2  >  >>
Ann R. Thryft
User Rank
Blogger
Re: Good to see progress
Ann R. Thryft   10/16/2013 7:51:08 PM
NO RATINGS
Thanks for reporting this, Elizabeth. Every increase in solar cell efficiency is important. It's interesting that in this case it was an innovation in chip manufacturing technology that made the difference.

Rob Spiegel
User Rank
Blogger
Re: Good to see progress
Rob Spiegel   10/10/2013 4:51:16 PM
NO RATINGS
Good point, Chuck, it would be nice to see those countries move to clean, renewable energy to replace the cutback in nuclear. Those countries could set an example for the whole world.

Charles Murray
User Rank
Blogger
Re: Good to see progress
Charles Murray   10/10/2013 3:00:32 PM
NO RATINGS
I agree, Rob. We're going to need some big jumps in renewable energy to fill the gap in countries like Germany and Japan, which are moving away from nuclear.

aurizon
User Rank
Iron
Re: Curious
aurizon   10/10/2013 9:45:59 AM
NO RATINGS
On the face of it, your comment sounds wrong. We know that plants are under 3% efficient in conversion of solar energy to plant mass. That means each square meter of solar cell will produce the  same gross energy as 15 square meters of plant surface. If we burn the plant mass, we suffer Carnot's indignity, if we ferment to alcohol we suffer more losses, plus the Carnot losses when we burn it. If we use it in fuel cells, that mitigates these losses greatly, but insufficiently to equal 44.7% solar conversion efficiency.

I believe that if we can achieve 44.7% in long lasting affordable cells, that maintain that efficiency for 20 years(even a 40% end point is OK - I would like to see the rate of degradation in service) we can reach a solar millennium, and large scale replacement of central power production (gas, coal, nuclear) will ensue. (Water power will survive for the foreseeable future).

 

If you doubt me, provide the math.

jhankwitz
User Rank
Platinum
Re: Curious
jhankwitz   10/10/2013 9:08:02 AM
NO RATINGS
Solar will never replace gas/oil/coal.  They sun doesn't provide enough energy to maintain our ecosystem as well as provide all of man's power needs.  The energy we're we're consuming in the form of oil, gas, and coal, took many millions of years to store. Energy we take from the sun to satisfy our human needs is taken away from the energy normally used to drive our planet's ecosystem. It's impact is insignificant now, but would be catestrophic if we replace all coal, gas, and oil useage with solar, even at 100% efficiency. 

Elizabeth M
User Rank
Blogger
Re: Good news
Elizabeth M   10/10/2013 5:17:30 AM
NO RATINGS
Well I think some people are really catching on this this, Cadman-LT, and actually doing in different parts of the world. It's especially popular with people who are lucky enough to be building their own houses. I have a friend here in Portugal who is building his house with the idea of solar power completely engineered into the design, making windows that will face the sun at optimal times and angles so it will always stay heated, and using solar panels in creative ways. So I think that this vision you mention is not so far off, power companies in agreement or not. And solar will increasingly be part of the power grid, too, which also is a good thing.

Rob Spiegel
User Rank
Blogger
Good to see progress
Rob Spiegel   10/9/2013 4:45:44 PM
NO RATINGS
Elizabeth, it's good to see progress on solar technology. With all the frustrations over EV batteries, it's good to see there is some real payoff in solar advancements.

Cadman-LT
User Rank
Platinum
Curious
Cadman-LT   10/9/2013 12:56:40 PM
NO RATINGS
What if what I said actually happened? No more need for oil. Would our economy just go to heck!? That's why I was saying I don't think it will ever be allowed. The companies that rule will just buy the tech and squash it. It's in their best interests to do so. Am I wrong?

Cadman-LT
User Rank
Platinum
Re: Good news
Cadman-LT   10/9/2013 12:49:39 PM
NO RATINGS
Or cover your car in solar film and never need fuel or a charge...ever. Oh yeah, gas companies wouldn't allow that to happen either. lol

Cadman-LT
User Rank
Platinum
Re: Good news
Cadman-LT   10/9/2013 12:45:44 PM
NO RATINGS
Imagine this in the future. Solar gets so good...instead of putting shingles on your roof you cover it with a solar film....every house produces it's own power! Oh wait...the power companies wouldn't allow that to happen now would they! lol

Page 1/2  >  >>
Partner Zone
More Blogs
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
It's been two years since the Mac Mini's last appearance on iFixit's teardown table, but a newly revised version joins Apple's lineup this week.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Nov 3 - 7, Engineering Principles behind Advanced User Interface Technologies
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service