Wrenches,
Solyndra claims that their tube collectors "perform optimally when mounted
horizontally and packed closely together, thereby covering significantly
more of the available roof area and producing more electricity per rooftop
on an annual basis than a conventional panel installation." S
Joel,
As a friend, I have enjoyed your perspectives on our business, even though I
usually don't agree with everything you say. I have never taken you to task
in a public forum, but I can't let your latest post go without comment.
There is a reason we call these guys DIYs. They have no expe
I second a lot of what Peter says. And believe that it ain't gonna get
nuttin' but worse over time as grid-tie PV becomes more mainstream. I think
it's pretty much inevitable that a serious fire or two or serious injury or
death or two due to incompetence and a poorly installed system is gonna
w
No neophyte should spend ANY time on a roof in whatever weather conditions.
That's dangerous enough for even the most well conditioned and athletic of
persons who are also technically proficient and qualified to be there. Sudden
strokes, heart attacks and casual falls aren't such good things f
Hi Joel. No experience here, but I did talk to one of their installers (I think
it was Carlisle Energy Services) at Intersol last week, displaying one of the
modules with its mounting system. Some additional info to consider:
E-T thermal collectors do have a "flat plate" in each tube, so angle o
Hello Peter,
I should have noted that some of my DIY customers include licensed contractors,
mechanics, hands-on scientists, and engineers, as well as skilled
non-professionals. By so-called professionals, I refer to sales engineers who
are neither trained sales people or engineers and contract
Then there are the wholesale internet "designers" that sell DIY systems. These
are usually put together by kids who have never done an installation, and who
have completed some "training course" and design from behind a computer screen.
I just hate to see this going on, but for many, this work i
HI Peter;
First I agree with almost everything you said. However, I think you
took Joel's DIY comment out of context. What he and I are saying, is
that we both have customers that are more knowledgeable than many of
the "Professional" installers/ designers/ sales people we are seeing
in t
HI Joel
I have done ev tube and flat plat, I am amazed that the flat plate is almost as
good to better than the ev tube.
As to PV it is true that the output goes as the angle, (cosine function) but if
you have a wavey surface it is very slightly better than a flat surface. the
cosine effec
Hi
Thanks for the responses.
Agreed- there are many paths to the education route- NABCEP, SEI, Licensed
Electrician with ancillary training etc. I think we all agree that this is not
a hobby, although a hobbyist could have found their new vocation and make solar
a way of life.
The one commona
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