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Author Topic: Photvoltaics (PV)  (Read 6037 times)

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AGelbert

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Re: Photvoltaics (PV)
« Reply #30 on: May 07, 2014, 11:17:02 pm »
UK Partnership Helps 50 Schools Raise Nearly $600,000 to Go Solar


http://ecowatch.com/2014/...artnership-schools-solar/
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AGelbert

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jdwheeler42

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Re: Watch the White House Finally Go Solar
« Reply #32 on: May 10, 2014, 08:57:38 pm »
Watch the White House FinallyAgain Go Solar
http://ecowatch.com/2014/...tch-white-house-go-solar/
Fixed that for you... in case you had didn't know or had forgotten, Jimmy Carter put solar panels on the White House, Ronald Reagan took them down.

AGelbert

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Re: Photvoltaics (PV)
« Reply #33 on: May 11, 2014, 01:11:00 am »
JD,
You are definitely on a pedantic streak. SIGH...  ::)

I simply posted the headline of the article.
Quote
Watch the White House Finally Go Solar Brandon Baker | May 9, 2014 11:42 am
The panels Carter put on the White House were token. The ones going up now are much more powerful and very permanent. But of course you are right. The White house had some PV panels before Reagan took them down. 

Here's a nice link from this forum posted some time ago you might be interested in looking over.

Quote
"And Jimmy Carter, after his famous fireside cardigan-sweater chat urging Americans to conserve energy, put solar panels on the White House."

http://renewablerevolutio...rs-back-40-years-forward/

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jdwheeler42

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Re: Photvoltaics (PV)
« Reply #34 on: May 11, 2014, 09:18:26 pm »
JD,
You are definitely on a pedantic streak. SIGH...  ::)
More impish than pedantic <(-:<
Quote
I simply posted the headline of the article. The panels Carter put on the White House were token. The ones going up now are much more powerful and very permanent.
I am glad to hear that these are much more powerful.  I'm afraid though that after hearing Bill Clinton talking about his wife's plan to make all government buildings as energy efficient as possible, even making the White House 100% solar seems a bit token.

And I am very leery of history repeating itself if a Republican gets elected in 2016.
Quote
Here's a nice link from this forum posted some time ago you might be interested in looking over.

http://renewablerevolutio...rs-back-40-years-forward/
Thanks, that does look interesting.

AGelbert

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Re: Photvoltaics (PV)
« Reply #35 on: May 11, 2014, 11:29:56 pm »
JD,
I hear ya about Clinton. On the subject of efficient heating and cooling of buildings, notice in the White House video the office building behind it. Amory Lovins discovered that they had put in about 240 window air conditioners in the 1950s and screwed up the design the architect had put into the building about 100 years ago or so that eliminated the need for most cooling because of a clever window vent design (that the wall air conditioners totally screwed up!  >:().

The architects of old knew all about renewable energy in building design before fossil fuels. Amory Lovins goes all over the world teaching people how to cut 80 to 90 percent energy use without ANY loss in comfort or manufacturing capacity AND most of the time an actual increase in air quality because of superior circulation prevents disease germs (from someone who came to work sick) from being spread. Our industrial engineers and fossil fuel happy architects have truly forked a lot of things up. The key, known by architects of old and forgotten today but rediscovered by Amory Lovins and his team of engineers, is that you extract hot air from the TOP of a floor, not the middle or bottom and you MUST avoid mixing the old air with the new by introducing the new air at the lowest point on the floor area. The way most systems are designed now, the fans and ducting push germs (yep, hospitals too! Amory has done a lot of refits on hospitals that have saved them a bundle on energy -> MUCH SMALLER FANS, Pumps  and less curves in ducting and pipes carrying fluids AND made the air circulation better able to prevent the spread of germs) around and use multiples as much energy because the fans are working against the natural gradient. In Amory Lovins building refits, the hot, old air or hot ANYTHING from industrial processes is run through a heat exchanger (not just ANY heat exchanger - these are new designs massively more efficient at sucking heat out of air or liquid flows with low or NO FOSSIL FUELS, thank you very much) BEFORE IT IS EXHAUSTED so there is little or no waste heat and you get energy to heat water or increase air pressure in an evaporative cycle for air conditioning OR heating WITHOUT the use of a fossil fuel powered compressor. It's all in those five videos I posted on Energy Efficiency by Amory Lovins.

This is not Cornucopian stuff. The WASTE is MASSIVE. We ARE talking about 80 to 90% of civilization unnecessarily using power, PERIOD. We ACTUALLY need to spend only 10 or 20% of the energy we NOW SPEND to do exactly the same things IF we become efficient as we were before fossil fuels but with better technology. Amory points out that MOST of the energy spent in civilization is NOT in transportation, mining or industrial processes manufacturing stuff like is commonly believed ; MOST of the energy, and most is WASTED because of poor design and understanding of laminar versus turbulent flow of liquids, is to power PUMPS. That's right; PUMPS! (Second video - energy efficiency in buildings).

Don't believe me? Watch the videos. They are long. They are boring but they are fastidiously accurate. Amory Lovins has done refits all over the world from the Empire State Building to the White House to Computer Chip Factories to whatever. The guy KNOWS what he is talking about and has been DOING it, not just talking about it, since the 1980s. 


Check him out. The guy is extremely down to earth, is not prone to hyperbole or wishful/magical  thinking and PROVES, with data, ALL HIS CLAIMS.  ;D
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AGelbert

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jdwheeler42

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Re: Photvoltaics (PV)
« Reply #37 on: May 12, 2014, 11:52:21 am »
Quote
Don't believe me? Watch the videos. They are long. They are boring but they are fastidiously accurate. Amory Lovins has done refits all over the world from the Empire State Building to the White House to Computer Chip Factories to whatever. The guy KNOWS what he is talking about and has been DOING it, not just talking about it, since the 1980s.

Check him out. The guy is extremely down to earth, is not prone to hyperbole or wishful/magical  thinking and PROVES, with data, ALL HIS CLAIMS.

Oh no, I definitely do believe you, I've been a big fan of Amory Lovins for a long time.  If I had to do my life over, I might have tried to get an apprenticeship at the Rocky Mountain Institute.

Only one problem: where are the videos you are talking about?  I can't find any links.

Surly1

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Re: Photovoltaics (PV)
« Reply #38 on: May 12, 2014, 01:12:31 pm »
Yeah, AG, where are the links you referenced?

AGelbert

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Re: Photvoltaics (PV)
« Reply #39 on: May 12, 2014, 03:34:26 pm »
Surly and JD,
Here are the video links:

Energy efficiency 1 Amory Lovins
https://www.youtube.com/w...ailpage&v=O5txQlEI7bc

Jump to the RIGHT steps in the RIGHT order for space cooling:  ;D
https://www.youtube.com/w...&v=O5txQlEI7bc#t=4075

Energy efficiency 2

https://www.youtube.com/w...ailpage&v=8kUih_t9aCs

Check this part out if you are in a hurry: "Eating the WHOLE LOBSTER is mostly CFS, not rocket science"
https://www.youtube.com/w...&v=8kUih_t9aCs#t=4292

Energy efficiency 3
https://www.youtube.com/w...ailpage&v=RjcWx7U1sjQ

Energy efficiency 4
https://www.youtube.com/w...ailpage&v=zW6gWZD4394

Energy efficiency 5
https://www.youtube.com/w...ailpage&v=x-9jd2OMwJQ

The next industrial revolution
https://www.youtube.com/w...ailpage&v=1zfO3HW6xCw

PS: Also in Energy efficiency 2 Amory points to a world shaking discovery that industrial engineers DO NOT WANT TO ADMIT. ALL the Industrial and Mechanical Engineering textbooks are WRONG on evaporative heat exchange coil design (massively, as far as energy efficiency is concerned  :o) BECAUSE the scientist that discovered how a gas OR liquid moves through a pipe or tube (how much FRICTION energy losses occur) in 1921 stated that the flow is TURBULENT, not LAMINAR. THAT is exactly backwards, as discovered by Amory Lovins! Do you know what that means? IT means EVERY pipe and pressure gradient friction factor in EVERY engine, pump, duct or pipe is DESIGNED for turbulent flow when it should be designed for laminar flow. This is a GIGANTIC (and very convenient for fossil fuelers!) WASTE of ENERGY! We are talking well over 60 to 70% REDUCTION in energy use just by redesigning ALL the above for laminar flow. This is because the HIGH friction losses will no longer occur and, WITHOUT REDUCING ANY OUTPUT OF WORK ENERGY, you reduce USE ENERGY by 60 to 70%.

Get Roamer to go through this stuff detail by detail. Maybe he will finally see what I've been trying to tell him for over a year, which he refuses to admit, about fossil fuels being UNNECESSARY to run our civilization. Since I'm NOT an engineer, maybe I can't get through to him. But Amory puts it all on the table. Amory MEASURES, putting instrumentation all over the place to get EXACTLY the accurate energy use picture without old, out of date, or just plain WRONG, engineering text book mantras about how much energy is used to do this, that or the other. This is REAL, Surly. Our imminent demise is nothing but a doomer's misplaced pessimism.
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jdwheeler42

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Re: Photvoltaics (PV)
« Reply #40 on: May 12, 2014, 05:06:50 pm »
Thanks, AGelbert.  Do you mind if I repost this at the Doomstead Diner?  Roamer hasn't posted anything in a while, but he was on today, so hopefully he will see it.  (And, I was able to get that information AFTER logging off, so I'm not abusing my mod privileges by telling you that.)

I halfway agree with you about our imminent demise.  I basically am a techno-cornucopian but a political doomer.  It is not the doomer's nightmares that concern me, it is the sociopath's dreams -- particularly the "better dead than Red" crowd.  I believe we can solve these problems if we work together, but I fear there are those in power who would rather see us go extinct than lose their control.

AGelbert

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Re: Photvoltaics (PV)
« Reply #41 on: May 12, 2014, 10:33:13 pm »
JD,
Repost anything and everything you wish that I have posted here at the DD or anywhere else. And I thank you heartily in advance for doing so.
 

PS:
Just Remember that at the DD you will be immediately assaulted with a dressed up version of this:


If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. 
   


If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence. The origin of myths is explained in this way.


Bertrand Russell

If the DOOMERS want to scoff and call me a cornucopian dreamer, they'll have to DO IT HERE!
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AGelbert

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Solar Shingles or Solar Panels: Which is Best for Your Home?

Harnessing the sun’s rays produces a renewable, clean power source that can be converted to electricity by means of solar panels or roof shingles. Here’s a fact sheet on these two methods to help you choose the best one for your home.

Solar Panels 

Solar panels are the older of the two, first developed in the 1950s. There are some 40-year-old panels in existence today that are still working at an impressive 80 percent of their original capacity.  :o  ;D

The average solar panel measures 18 square feet and produces 185 to 240 watts.

Solar panels are typically installed above the shingles or other roof surface, leaving a 6 inch gap. Occasionally this gap becomes home to pests such as squirrels, raccoons, birds and even bats.  :( Special screens are now marketed to protect against animal infestation.  8)

You can easily position and angle solar panels to catch the sun, no matter which direction your roof faces. Some will even track the sun at various times of day for optimal energy collection.

It is a simple matter to move and relocate the panels, which may be installed in locations other than the roof – for example, atop a pole or in your garden or yard.

Solar panels are more suitable for retrofitting if your existing roof is in adequate shape to last as long as the panels themselves, which are typically guaranteed for 25 to 30 years. Minimal – or no – structural change to the roof is required.

You can save money by installing solar panels yourself; there are kits on the market for this purpose. Be aware, though, that this may disqualify you for subsidies and rebates from the government or utility companies on your solar energy system. Check out the rules for these incentives, as well as your local building code.

Solar Shingles (AKA Solar Roof Tiles)

Solar shingles were first marketed in 2005. Because they are so new, there is not yet any real life data on how long they last.

Similar in size and shape to an asphalt shingle, a single solar shingle produces 13 to 63 watts. This type of solar device originally had low conversion efficiency, about half the rate of solar panels. However, with technological advances over the last few years, they have been catching up.

Solar shingles take the place of their conventional counterparts as the roofing material itself; therefore the ideal time to install them is when you are building a new home or replacing your current roof.
Lightweight and attractive with a deep indigo blue color, solar shingles have weather resistance, strength and flexibility much the same as asphalt shingles.

A solar shingle roof is relatively quick to install; the installation time has decreased approximately 60 percent in the past decade to about 10 hours. Nevertheless, considerable technical expertise is still required. As with solar panels, a solar shingle roof must conform to the building code of your state, for example Rhode Island. It is recommended to hire a qualified roofer with experience in this type of installation.

Solar shingles are difficult to position to take optimum advantage of the sun’s rays, particularly if your roof is not facing south.

A solar shingle roof will generate heat, which the roof substrate must be capable of withstanding. This heat also needs to be directed out of your attic in warmer months.

Both

Both solar panels and solar shingles should result in substantial savings on electric bills, especially during sunny weather.
Financial incentives are offered for the installation of either type of system, generally in the form of utility discounts as well as federal tax credits.


Read more: http://www.care2.com/gree...r-home.html#ixzz31wsiSxBv
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Surly1

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Re: Photvoltaics (PV)
« Reply #43 on: May 17, 2014, 09:09:43 pm »
Quote
JD,
Repost anything and everything you wish that I have posted here at the DD or anywhere else. And I thank you heartily in advance for doing so. 

PS:
Just Remember that at the DD you will be immediately assaulted with a dressed up version of this:

If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. 
     


If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence.  The origin of myths is explained in this way.

Bertrand Russell

If the DOOMERS want to scoff and call me a cornucopian dreamer, they'll have to DO IT HERE! 


AG, thanks for the Lovins links. Now I'll have to go to school a bit.

BTW, I still post up your stuff on the DDFB page. If you object, I would stop, but it does't sound like you do.

I think you got a pretty good hearing from a great number of us on the DD. I always found, and find, that you are a wealth of useful information, and are about 80 years ahead of your time. The cornucopians and apostles of the status quo won't get it, because Upton Sinclair. So fork them (adopting your epithet of choice here in your house.)

Keep up the terrific work.

AGelbert

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Re: Photvoltaics (PV)
« Reply #44 on: May 18, 2014, 02:25:24 am »
Thank you Surly.  ;D

Everything I post here is community property. Post it wherever and whenever you wish, with or without attribution.

I just had a tough week with a motion full of ridiculous jabberwokee from the bank. I slammed an urgent motion in reply which even quotes the PR state Constitution and case law from the state Supreme Court on how the bank is perniciously injuring the property rights of the citizenry. After hammering all my legal points, points she doesn't want to touch with a ten foot pole but is SUPPOSED to, I POLITELY read the judge the riot act with, not one, but three reasons (without actually quoting the regulation number for judge RECUSAL  ;D ) why, if the judge does not rule for my solution to the bank's complaint, Anyone observing the ruling could "reasonably" suspect the possibility  ;D that the court is showing partiality, prejudgement of the case, undermining the belief of the citizenry in the judicial system and negatively affecting commerce in the buying and selling of properties because the ruling is for the bank which becomes "unjustly enriched" (a point of law) AND the equity of the debtor is not preserved even though the property has been paid for 19.5 years on a 20 year mortgage! I.E. the debtor is "CONSEQUENTLY "Unjustly impoverished" (another point of law that can cause a sale at auction to be annulled).

I can, if she rules against me, appeal put that is a huge hassle and very expensive. I can't do it from here. BUT, I DO have legal grounds to overturn a sentence in favor of the bank foreclosure auction and have it annulled. But being right under the LAW doesn't mean much these days... :(  I expect, she will rule for the bank anyway.   :P

Oh well, I have shot my full quiver of legal arguments. I did what I could. There just seems to be too much corruption and too much bank power.  :P   I've pounded the law screaming (very politely with florid and loquacious legalisms, OF COURSE ) that the minimum bid of $150,000 is illegal because of case law (Stare Decicis) from 2012 but the judge is silent as a tomb!  >:( She won't even address my request to have the property assessed now if she rules for foreclosure auction. The only good thing is that, since I have officially appeared in court via motions, the bank MUST send me, via registered mail, notice of the day, hour and place  of where the foreclosure auction is to take place. My wife has an idea of sending some relatives of hers who are fairly well off to bid up the price. LOL! We'll see. 

Hey, I found a cool web site with latin expressions you might like. Check it out. Here's a couple of  good ones     I'd like to toss at the judge (but won't cause she would NOT find them amusing. LOL!).

Agelbert approaches the bench:
Your Honorable Magnificence of the Excellence of the pinnacleness of erudition, justice and unending and eternal integrity, obtaining an equitable ruling from this court against a bank worth 42 billion dollars is as likely as ab asino lanam !

Furthermore, after observing your tireless labor in which you wisely and with great discernment wade through all the claims and counter claims   to ensure all is done with proper decorum, is thoroughly within the holy and always just and saintly law, I have come to the conclusion that parturient montes, nascetur ridiculus mus

http://latin-phrases.co.uk/quotes/criticism/

 

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Faith,
if it has not works, is dead, being alone.

 

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