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

Solar Cells Help Windows Generate Electricity

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
Page 1/5  >  >>
Ann R. Thryft
User Rank
Blogger
Re: It all comes down to cost..
Ann R. Thryft   12/6/2012 12:19:55 PM
NO RATINGS
Good point, kodaiflow. Like many alternative energy technologies, especially those taking advantage of existing semiconductor infrastructure, the big push has been to make the technology a) work efficiently and b) be manufacturable. I wonder how much LCA studies have been done--that would be really interesting to know, although there may also not be enough data yet.

kodaiflow
User Rank
Bronze
Re: It all comes down to cost..
kodaiflow   12/6/2012 12:03:27 PM
NO RATINGS
I think the main question is mean life span.  This currently is the largest draw back to PV in it's current form.  If these units can produce power for 30 years at a constant level then they justify the investment.  The average solar panel that people are rushing to put on their roofs will have a life span (90% of peak) of about 10 years. In that time they may only generate 50% of the energy used to fabricate them. 

Ann R. Thryft
User Rank
Blogger
Re: Solar-window cells?
Ann R. Thryft   9/4/2012 12:24:11 PM
NO RATINGS
Thanks, Jack, for the clarification. I think that's an excellent question for a solar cell or window manufacturer.

Ann R. Thryft
User Rank
Blogger
Re: Solar-window cells?
Ann R. Thryft   9/4/2012 12:23:04 PM
NO RATINGS
Mydesign, your impression is incorrect. The US has been experiencing a major economic downturn for several years, including many people losing their jobs and their homes. Also, per capita average income figures are highly misleading, since a given dollar amount often buys much less here than it does in India. Classic examples are the costs for surgery and prescription drugs. In any case, it's a complex picture, especially when making comparisons.

Mydesign
User Rank
Platinum
Re: Solar-window cells?
Mydesign   9/4/2012 1:14:28 AM
NO RATINGS
1 saves
Ann, that’s surprising for me. I though all US citizens are financially well settled peoples. As far as my knowledge, the per capital income of US citizens are more than 10 times of Indian citizens. Through my previous post, I mentioned about the government initiatives for promoting solar energy.

Jack Rupert, PE
User Rank
Platinum
Re: Solar-window cells?
Jack Rupert, PE   8/31/2012 11:30:25 AM
NO RATINGS
Yes, Ann, that's what I was wondering.  I don't know the proper percentages, but say an average high effieciency window block 65% of a certain type of energy (heat, uv, whatever).  If the solar cells take out 25% by themselves, that might mean that the cost of the base window could be reduced by eliminating an amount of the doping, and thereby helping to offset some of the cost of the solar cells.

Ann R. Thryft
User Rank
Blogger
Re: Solar-window cells?
Ann R. Thryft   8/27/2012 12:00:55 PM
NO RATINGS
Jack, can you clarify your question: do you mean eliminating the doping chemicals that are usually used to increase efficiency and replacing them with this film?

Ann R. Thryft
User Rank
Blogger
Re: Solar-window cells?
Ann R. Thryft   8/24/2012 12:29:24 PM
NO RATINGS
Mydesign, that does resemble some US programs. However, because the cost of installing solar can be around $20,000 (depending on several variables), an often-quoted figure, "only" 40% would be $8,000. Not many people have that amount available for this purpose, even in installments.

Jack Rupert, PE
User Rank
Platinum
Re: Solar-window cells?
Jack Rupert, PE   8/24/2012 9:58:50 AM
NO RATINGS
Ann, do you know how that compares with your standard high-efficiency home or office window?  Just thinking that if this has similar optical properties, there might be a savings in the base cost of the glass that would normally by used (by reducing the amount of "doping chemicals" which would help in the implementation of soemthing like this.

Mydesign
User Rank
Platinum
Re: Solar-window cells?
Mydesign   8/24/2012 1:13:30 AM
NO RATINGS
1 saves
Ann, in the scheme which I mentioned, the upfront cost is only 40% of the total cost and the rest is a subsidy from government, which goes directly to the service provider’s account. So customer has to pay only 40% of total cost, that too in interest free installments (2-6 EMI based on various schemes from different companies).

Page 1/5  >  >>
Partner Zone
More Blogs from Engineering Materials
HP revealed more of its 3D printing plans in a recent webinar. Senior vice president of inkjet and graphics solution business Stephen Nigro spoke about how the technology works and expanded on HP's vision of open collaboration to commercialize its Multi Jet Fusion 3D printing technology for end-production, and open collaboration on new materials. He also said HP will create software to help users decide when to use Multi Jet Fusion versus conventional subtractive manufacturing.
A lightweight electric urban concept car designed by several European companies weighs only 992 lb without its battery. It would have weighed 26.7 lb more if its windows were made of glass instead of the specially coated LEXAN polycarbonate resin from SABIC Innovative Plastics.
Skylar Tibbits' team in MIT's Self-Assembly Lab is now 4D printing self-assembling shapes made of programmable carbon composites and custom wood grain. The composites are being used in a sport car airfoil, and the wood grain is beautiful.
The NanoSteel Company has produced high-hardness ferrous metal matrix composite (MMC) parts using a new nanosteel powder in a one-step 3D-printing process. Parts are 99.9% dense, crack-free, and with wear resistance comparable to M2 tool steels.
After a year or so of missteps, false starts, retractions, and postponements, inkjet office printer giant Hewlett-Packard has finally revealed just what it plans to do in 3D printing.
Design News Webinar Series
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.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.
Dec 1 - 5, An Introduction to Embedded Software Architecture and Design
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.
Last Archived Class
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