Benn,
If you were to look at the roof from the side, it would look like this: 2x6
tounge and grove (laid flat and exposed inside) foam board, 3/4 plywood,
shingles. I guess I'm looking for a way to ensure my bit goes in at the right
angle, perpendicular to the beams inside.
William, Im not
Michael,
Bergey has the 48 v XL.1 available, now called the Excel 1. 3 wire to base
of tower so the rectifier is now accessible! The controller is now a Midnite
solar Classic. Very sweet setup. Price is higher but comes with the switch
box (with shutdown breakers and rectifier). I have
See 690.10, 690.1, and 690.3.
*Jason Szumlanski** *
*Fafco Solar*
On Wed, Dec 12, 2012 at 1:00 AM, William Miller will...@millersolar.comwrote:
Jeff:
There is a code passage that specifically states that one does not need to
provide full rated ampacity to a service. I am sure you can
Jesse,Are the 2x6s the 'beams' you are referring to or are the 2x6s supported
by the beams you want to attach to?I think i realized what you were thinking
with the QM flashing and EMT. ...stick a ~1/2 EMT piece in the QM block and
hold it perpendicular to the roof. Is that right? You would
Have you looked at EcoFastens Eco-65 plate? We used them on a roof similar to
what you've got and went right into the 2x6 so we didn't have to go into the
structural members. They've got a flashing that will work with asphalt roofs.
Just make sure you get the right length fasteners so it
Jeremy:
The XL.1 is now sold with the Classic controller, so a 48V Bergey XL.1 is
quite a viable solution.
Best,
Chris Daum
Oasis Montana Inc.
406-777-4309
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
We just completed a job with Eco-65's. It took about 12 man-days to install
200 of the base plates and L-Feet on a flat roof with wood blocks on a
metal deck with about 3 total from the rolled roof surface to the metal
deck. We custom-cut patches to go over the metal flashing supplied with the
The 2x6 are not the beams the beams are 3x10 laminated beams that hold the
whole roof up, confusing I know. The beams are what I will eventually attach
to.
I like the idea, that would allow the drill to stay straight when I drill my
pilot hole.
Thanks!
Jesse
Sent from my iPhone
On Dec
I have been approached by a local elementary school to develop a very small
PV related experiment or system that is appropriate for children aged 9-11.
Not having kids myself, I have no idea where to start with this. They are
fine with mounting a PV panel on the roof, wall, or ground. They want
Hi Jason,
When I was in fifth grade I built a little PV project. It consisted of a very
small module (smaller than a dollar bill) and a tiny dc motor mounted in a box
with string hooked up to it, and some weights. I demonstrated how shading and
irradiance levels affect how much weight the motor
Jason, for 9-11 year-olds this curriculum may be useful as a starting
point, and we've got some others for different age groups.
http://fsec.ucf.edu/en/education/k-12/curricula/sm2/index.htm
The solar powered system experiment is designed for a cell so we
suggested the load be a small
This is for older kids, but may help. I did a project for a 7th - 10th grade
science class. The school wanted one module and batteries, but I talked them
out of any batteries, and they went with a small awning mount array and grid
tied it with weather station, temp and irradiance meters along
William,
Given that blueboard (extruded polystyrene) can be safely used as
an insulation layer beneath and directly supporting batteries,
crushing is simply not an issue, especially with plywood to spread
out point forces. Blueboard has tremendous resistance to
Jason,
Similar to Karl's suggestion, we have built a few education systems with a
small PV module direct to a 12 VDC bilge/sump pump like the Rule models
(with some fusing and disconnecting means of course).
Showing movement of water when the module is in clear sun vs partially or
completely
Since this job was a spec job and the materials are already here, I need to use
the quick mount, so. I took a quick mount, inserted a 1/2 EMT coupling (after
some filing) and stuck a 8 piece of 1/2 EMT in the coupling Nd tightened it
down. Checked it with my square to ensure it is coming out
You can get drill guide attachments that hold the drill perpendicular to
the roof surface. I've never used one on a roof, but it could be helpful...
http://www.sears.com/craftsman-drill-guide/p-00967173000P?prdNo=1blockNo=1blockType=G1
*Jason Szumlanski** *
*Fafco Solar*
On Tue, Dec 11, 2012
Jason,
If you want a little self contained display that is interactive you could use a
high wattage AC light focused on a small 10 or 20 watt module. Put the light on
a rheostat the kids can control. Use a computer fan to the module with a clear
plastic tube sealed around it. Drop a ping pong
These code references should be all that is necessary to put the
inspector on the right path. His requirement that the source be capable
of 100 amps clearly conflicts with the intent of 690.10(A); it makes
clear that the inverter system only needs to be large enough to operate
the single
I donated some 12 watt solar panels to the local grammar schools in my
area and got a call from one of the teachers with the same question. The
panel was very over sized for the project, but simply taking a small dc
fan (or a d motor with blades (propeller?) attached, combined with a
colorful
Hi Jesse,
We just finished a similar roof mount project but had the good fortune to be
going into 6x14 beams at “ 48” o.c. “. I put the on center dimension in quotes
loosely, and spent a couple hours prior to drilling the first hole checking
layout of the beams, directly under where we’d be
Array direct is definitely better as Stephen points out, and I've built
units that run a fan other visibly moving device. Definitely don't want
to roof mount the module, as others pointed out, you want the kids to be
able to experiment with angles and shading. Throwing in some analog
meters
I found that over the years, the bottom line correlates pretty well with
total energy concerns. I got away from DC and other super energy
efficiency modes, as reliability is even more important, and non
standard pumps just don't last near as long. For off grid, I usually
spec Grundfos SQ
Thanks Chris,
I did the same as far as verifying layout of the beams, they are all the same
center to center, so that helps when snapping lines on the roof, we've been
using the quickmount jig for a few hours and haven't missed yet, so I think we
got it.
Thanks all!
Jesse
Sent from my
Hi there,
Check out these educational units that include miniature fuel cells and
solar...
http://www.fuelcellstore.com/en/pc/viewCategories.asp?idCategory=41
Regards
Carl Emerson
___
List sponsored by Home Power magazine
List Address:
Thank you all so much - wonderful ideas so far. My contact really likes the
fountain/pump idea. An indoor wall mounted fountain may also be
interesting, but I think a fountain next to a solar panel would be great
with a sign that explains what's going on.
*Jason Szumlanski*
*Fafco Solar*
*
*
Hi Wrenches,
I have a quick theoretical question related to trying to run a standard
grid tied PV system off grid with a generator. A client called me wondering
if he could run his small Honda generator off grid connected to his load
center and then turn on his PV system. What would happen if
August:
The apocalypse. No, seriously, this is a scenario not supported by any
manufacturer I know of. The report we have is it is likely the generator
will be damaged. I recommend against it.
William Miller
At 02:07 PM 12/12/2012, you wrote:
Hi Wrenches,
I have a quick theoretical
FYI, here is Bergey's link for this.
http://bergey.com/products/wind-turbines/bergey-excel-1
boB
On 12/12/2012 5:53 AM, Chris Daum wrote:
Jeremy:
The XL.1 is now sold with the Classic controller, so a 48V Bergey XL.1 is
quite a viable solution.
Best,
Chris Daum
Oasis Montana Inc.
I have watched this scenario happen with a the Sunny Island system AC
coupled to Sunny Island. There is a parameter called maximum reverse
generator power that you can program. It defaults at 100W I believe. If
the current feeding into the generator is greater than this parameter, the
Sunny
Hi there,
Does it not depend on the size of the generator?
I know that solar grid tie into a diesel generator derived grid is done on
several pacific Islands.
Carl Emerson
At 02:07 PM 12/12/2012, you wrote:
Hi Wrenches,
I have a quick theoretical question related to trying to
August -
I've seen this scenario and it is not pretty like William suggests.
From what I've seen, the problem is not so much the power of the PV being
more than the generator, but moreso if the 1) generator is synchronous or
non-synchronous with the inverted AC (sine wave) and 2) if the
Hi wrenches,
do any of you have pro solar clamps for Sanyo hip-200ba3? I am in need of 80
mids and 30 ends. (I cant remember if there is only one clamp you use in both
applications?) This was that Sanyo module with the cuff on the edge by the way.
Please contact me off list of you want to free
They are different clips
Jay
Peltz power
Sent from my iPhone
On Dec 13, 2012, at 7:33 AM, Nick Vida nickv...@ymail.com wrote:
Hi wrenches,
do any of you have pro solar clamps for Sanyo hip-200ba3? I am in need of 80
mids and 30 ends. (I cant remember if there is only one clamp you use
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