What I have been putting forth to our customers and potential customers, is
that a PV system when looked at like an appliance is simply equal to the
value of the energy it produces over a given periodfor straight grid
tied systems I have used what I think is a conservative number of 20 years
an
I spoke last October with the Appraisal Journal, and specifically with Rick Nevin,author of the referenced articles.Mr. Nevin stated a recent review conducted by the Appraisal Journal confirmedthe information in the reports is as applicable today as it was when the studywas conducted, and even more
Keith & Joel,
The old metric was $20 in value for each $1 saved in energy, however the Appraisal Institute has not supported that valuation metric for some time now and neither has Fannie, Freddie or FHA.
Using the gross sales price that the customer paid for PV as a valuation number was also s
Friends:
When installing modules on extruded rail systems, I worry that any
vibration or motion could loosen top-down clamps. Unlike bottom-up systems
that install with tried-and-true bolts and lock washers through captive
holes, clamp systems seem less "positive" in holding capability. If o
In general, for every $1/year energy savings add $20 to the home's value.
See http://www1.resnet.us/ratings/overview/resources/appraisal/default.htm
- Original Message -
From: Keith Cronin
To: RE-Wrenches
Sent: Monday, March 21, 2011 11:57 PM
Subject: [RE-wrenches] Value of P
Looks doable alright.. I'd maybe go for two say 14" Flat 5/16" X 4" "cheek plates" on either side of the 6X.. sticking up maybe 4" from the top.. and thru bolt them thru the post with threaded rod.. That gives you a couple of ears sticking up (Similar to DP&W's Can). then I'd thru bolt the rails a
Hi Jason:
The rail spacing seems too thin for the module. Most modules require that
the rails are no more than 25% in from the edges.
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell: 707-321-2937
Office: 707-789-9537
Fax:707-76
Here is my "cobulated" idea, admittedly done this way to take advantage of
parts in stock:
http://www.fafcosolar.com/download/402/Cobulate.pdf
Unirac Solarmount rails, sandwiched together and lagged to post, and a brace
from L-Feet and ¼"x2" aluminum bar. Modules top or bottom mount clips
Cobulate is my new favorite word. I just hope Sarah Palin doesn't get a
hold of it and begin to... cobulate... a viable candidacy.
For a brighter energy future,
Andrew Truitt
Principal
Truitt Renewable Energy Consulting
NABCEP Certified PV Installer™ (ID# 032407-66)
(202) 486-7507
http://www.li
I designed a pole mount for the US Forest Service that was 20 ft out of the
ground. Its basically telescoping sections of pipe, welded together. The base
was 8" Sch 80 for 10 ft, then 6" diam, and finished the last 6 ft in 4" diam.
We used a massive footing with lots of rebar that was 8 ft below
Hi
Was wondering if anyone has any new data points on the additional value a PV
system adds to the home?
If someone spends $X for a system and saves $Y a month/year, how is this being
calculated?
Do we have actuaries with enough empirical data to suggest what the numbers
would look like?
Rea
Yes, use an engineer, basically you are creating a wind
turbine or equivalent type of structure.
Works fine guyed but you need to have enough pole base
weight, guy point weight, cables and pole to withstand the
stresses. We went 27' height to the top of pole mount then
the owner doubled the #
Ron,
Thank you, I appreciate the contact. One of my employees, Nathan Skorstad
will be calling you on this system.
Best,
David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
23
Unfortunately, UniRac has discontinued their pole mounts.
Jonathan Hill, senior system design engineerSierra Solar Systems563C Idaho Maryland RoadGrass Valley, CA 95945Celebrating our 30th year in solar!tech info and foreign orders: (530) 273-6754 order line: (888) ON-SOLAR (US only) FAX: (530)
Holt,
Tracker technology and reliability has come a very long ways in the last five
years or so. It used to be that my service calls on trackers were -by far and
away- greater in numbers than for any other component. Still, I wouldn't
consider putting a tracker -at least one that uses electricit
Holt, the rule of thumb is equal parts pipe above and below ground. In your
case you might want to consider a large belled 36" diameter concreate pier
with a ring of oversized anchor bolts. The pole bottom would need a large
flange with very robust gussets. Extend that larger base, 6-8 feet up and
HI Holt,
I've done a pole as you are describing.
It also had a tracker on it.
3 or 4 sections of scaffolding were used to install the equipment, although if
better access a lift truck would have been better. And you'll need equipment to
move and install the pole.
The pole was guided, and soun
Hello, Holt~
Consider calling a company that specializes in outdoor sign installation.
They could install the mast as a subcontractor. They also have wind loading
tables for vertical surfaces instead of sloped tracker surfaces but that
could get you a good start on the engineering.
Jolliness,
Mi
Hello David,
I'd be happy to help you with your technical questions. Below is my contact
information.
Best Regards,
Ronald Paredes
Applications Engineer
Trojan Battery Company
12380 Clark Street
Santa Fe Springs, CA 90670
Office: +1 562 236 3066
Fax: +1 562 236 3279
rpare...@tro
Unirac's 4002 series side of pole mounts can be lagged into the side of a
4x4 post.
Best regards,
Mark Dickson,
NABCEP Certified Solar PV Installer T
Oasis Montana Inc.
_
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org]
Hi Wrenches -
See feedback below from fire Captain Matt Paiss of San Jose. Matt, thanks
for your input. Best, August
-Original Message-
From: Matthew Paiss [mailto:mpa...@earthlink.net]
Sent: Monday, March 21, 2011 11:07 PM
To: aug...@luminalt.com
Subject: Re: [RE-wrenches] Fire Access la
Can you get creative? How about a Simple Timber Frame Jungle Gym /Tree House/Ground Mount.. a Screened in Summer Bug House /Studio??? How about a very large Hop Trellis? Personally I avoid Pressure treated.. I love working with native Cedar and Tamarack... Might want to get a good nail banger invol
Dave;
Contact their PR specialist Kari Garcia: kgar...@trojanbattery.com
and they will quickly connect you with the correct technician /
specialist for your question.
Dan Fink
Executive Director;
Buckville Energy Consulting
Buckville Publications LLC
NABCEP / IREC / ISPQ accredited Continuing
Just one Panel? depending on budget I'd either cobulate something out of Unistrut.. or You might find a metal fab shop to make you something... You wouldn't be the first.. Good luck.. dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44
Situation: Client has limited locations for array due to trees. There is one
spot that would work IF pole mount is 20-25' (that would put the array top edge
at 30'+). Will need to incorporate tracker to maximize production. Will
definitely be consulting structural engineer.
Questions: Anyone t
I'm looking for a solution to mount a 230W module on the top of an
existing 6x6 wood post. It can be side of post mounted, but I'd prefer
top of post to get it up a little higher. Any ideas/products
appreciated.
Jason Szumlanski
Fafco Solar
___
L
Wrenches,
Looking for someone to speak with on technical questions on Trojan L-16 RE
batteries.
David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655
www.independentpowerllc.com
NABCEP Certified PV Installer
Vermont Solar Partner
23 Years Experience, (802) 888
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