friendly.
Jason Szumlanski
Fafco Solar
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.
This customer just wants the option of running loads direct from
utility. It has nothing to do with the inverter input side.
Any off-the-shelf solutions out there?
Jason Szumlanski
Fafco Solar
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and TED parts out there? ;)
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Darryl
Thayer
Sent: Sunday, May 08, 2011 1:49 AM
To: RE-wrenches
Subject: [RE-wrenches] TED CT voltages. Egauge
Hi
that “another idiot PV installer” did the
system, when in fact it was a DIY installation. You can be matter of fact about
the safety hazards and code violations, but I’ve seen the look on a person’s
face who obviously did it himself as I tore the system apart.
Jason Szumlanski
Fafco Solar
From
to 10kW. I suggested Enphase as an AC
coupled system (mainly due to the distance to the proposed array). I'm
aware of the pitfalls noted in the application note regarding high limit
shutoffs. Any thoughts?
Jason Szumlanski
Fafco Solar
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(530) 401-8024
www.berkeleysolar.com http://www.berkeleysolar.com/
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason
Szumlanski
Sent: Tuesday, May 03, 2011 6:18 AM
To: RE-wrenches
Subject
/3/2011 9:15 AM, Jason Szumlanski wrote:
Interesting. It's only off-grid when the grid goes down, which is
presumably not often in this case. I think the actual Enphase position
is that this may void warranty. In practice, I doubt they would a)
ask, b) know, and c) actually disallow a warranty
after dark, so the battery is
key. Party on the weekends and recharge during the week. It’s still solar
energy!
I can’t wait until the $/kWh capacity for lithium ion batteries makes sense.
That will be a game changer for mobile solar…
Jason Szumlanski
Fafco Solar
From: re-wrenches
into one or two 15A circuits when
I go to check them out.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Exeltech
Sent: Thursday, April 28, 2011 6:58 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] PV
of RE power.
Hint: bring a big battery and big inverter- you'll be fine.
Jason Szumlanski
Fafco Solar
On Apr 27, 2011, at 9:19 PM, d...@foxfire-energy.com
d...@foxfire-energy.com wrote:
It's the lights that will get you. JB should chime in here soon, but as I
recall SF in Vt maxed at around 15
be no. However, I'm not clear on whether
replacement batteries for an existing solar energy system would qualify
(or a replacement inverter for that matter).
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
affect the bifacials, so I may have partially
answered my own question.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan
Sindelar
Sent: Saturday, April 02, 2011 10:19 PM
To: re-wrenches@lists.re
I believe the HIP denotes bifacial HIT modules. These are exactly what
is being proposed on the project I am working on. Might need an
alternative!
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Me too. We have one project pending with the bifacial mods.
Jason
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirpal
Khalsa
Sent: Friday, April 01, 2011 10:38 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sanyo problems
it...
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark
Frye
Sent: Wednesday, March 30, 2011 1:33 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] sizing a sub-panel used
Of Jason
Szumlanski
Sent: Wednesday, March 30, 2011 5:18 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] sizing a sub-panel used
tocombinemultipleinverter outputs
Another key is to remember that this discussion also applies to the
conductor between the main panel and subpanel. In a large PV system
Of Jason
Szumlanski
Sent: Wednesday, March 30, 2011 8:18 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] sizing a sub-panel used to
combinemultipleinverter outputs
Another key is to remember that this discussion also applies to the
conductor between the main panel and subpanel. In a large PV system
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason
Szumlanski
Sent: Wednesday, March 30, 2011 1:08 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] sizing a sub-panel used to
combinemultiple inverter outputs
Here is a 690.64(B)(2) opinion from Wiles
be on the transfer switch and there is no
choice but to do a service side connection.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kent
Osterberg
Sent: Sunday, March 27, 2011 2:37 PM
To: RE-wrenches
Subject
unlikely, this is a possibility that must be considered.
The other issue presented here is that the inverters will shut down
every time the generator exercises.
The only sure-fire way seems to be wiring the inverter on the utility
side of the transfer switch, as Kent said.
Jason Szumlanski
You hit a nail on the head. We hear very often older customers saying
that they want to a) make sure their presumed future widow is taken care
of, or b) want to leave a self-sustaining home to their kids. I think
these are very valid and intriguing reasons to go solar.
Jason Szumlanski
Fafco
in MLS listing all the time around here, so it must be important to
someone. Now, back to how to put a value on it and get banks and realtors to
agree!
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org
I tend to agree about the clamps, and in a case like this where there is
little risk of an expensive mistake with a voided warranty, I would
actually drill holes in the frame and use bottom clamps in addition to
top clamping.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun
I suppose!
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of North Texas
Renewable Energy Inc
Sent: Wednesday, March 23, 2011 9:41 AM
To: RE-wrenches
Subject: [RE-wrenches] Value of PV system
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
Original Message
Subject: [RE-wrenches] Top of POST mount
From: Jason Szumlanski ja...@fafcosolar.com
Date: Tue, March 22, 2011 7:51 am
To: RE-wrenches re-wrenches@lists.re-wrenches.org
I'm looking for a solution to mount a 230W module
The specs for the SW4048+ shows Idle Consumption (Typical at full
voltage) 20 watts. I too have observed a Xantrex SW inverter drawing
more than spec at idle, specifically a SW5548 at about 50W at idle,
which was well above spec if I remember correctly. That was brand new
out of the box.
Jason
not noted anything on the delivery ticket?
I heard of some other installers recently having similar problems. We
heeded the advice to inspect shipments carefully. We just had our first
issue...
Any thoughts on how this kind of damage happens?
Jason Szumlanski
Fafco Solar
WEEB for that anyway.
I wonder what Enphase has to say about industry experts disagreeing with
their assessment of the WEEB. Hopefully they understand that I as an
installer am not trying to just make things a) cheap and b) easy. I am
trying to make things a) right, and b) clear.
Jason Szumlanski
at all?
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William
Miller
Sent: Friday, March 04, 2011 12:58 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] grounding the Enphase inverter
Bill:
Other
, but I understand that sometimes
it's hard to convince them. Hope this helps!
Jason Szumlanski
Fafco Solar
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirk
Herander, VSE
Sent: Thursday, March 03, 2011 8
2008 and 2011 once and for all. Circumstances will always dictate
requirements, but AHJ's, at least around here, often put a good deal of
weight on an App Note from a manufacturer. We'll see!
Jason Szumlanski
Fafco Solar
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
I like the Xantrex C12 for the night lighting control and LVD. It
doesn't cost much more than the (admittedly great) Morningstar
controllers, and has many features and adjustments. It is a little
larger in size, however.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re
with a
decent LCD status readout. If small and user friendly is important, it's
an option to look at.
By the way, this system had two 12V Werker 33aH AGM batteries. They fit
nicely in a large NEMA 4X enclosure. Contact me off-list if you want
pictures.
Jason Szumlanski
Fafco Solar
From
was thinking of something like a SnapNRack Corrugated Roof
Bracket that I mentioned before on the list, but I've never used this
product. Any other ideas?
Jason Szumlanski
Fafco Solar
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are to
specifications. Panel is a softer word.
I have been known to scold a salesperson for mixing up power and energy,
though. J
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David
Brearley
Sent: Tuesday
and capable installers
in our area. But I don't think he's getting lots of jobs because of his
certification, per se, at least for now... I could be wrong; and if I
am, maybe I'll see you in NABCEP training soon!
Jason Szumlanski
Fafco Solar
-Original Message-
From: re-wrenches-boun
Nick,
Can you cite a code section that supports this. (not challenging you – it makes
sense and I agree)
I have been wondering about SMA’s recommendation to parallel two 1/0 cables for
a Sunny Island. If the wire sizes and lengths are identical, is this acceptable?
Jason Szumlanski
“whole home.” I’ve also seen
it the other way around with a female power “inlet” on the trailer. Scary.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dana
Sent: Wednesday, February 02, 2011 3:00
Does anyone know if an automotive style 12V relay coil can handle the
solar panel voltages common in a 12V nominal panel? This would be a low
cost and small size solution that might work best in my case. A $6 relay
can switch 40A - well over what I need to do.
Jason Szumlanski
Fafco Solar
voltage, and c) is low cost. The
higher pull in voltage with a resistor in series would probably make the load
kick off too often.
Thanks again,
Jason Szumlanski
Fafco Solar
Operations Manager
239.574.1500 office
239.410.4985 cell
http://fafcosolar.com http://fafcosolar.com
. They are not interested in upgrading the PV and
battery (too costly).
Can anyone recommend a photosensor source, and maybe a model number?
Other ideas welcomed...
Jason Szumlanski
Fafco Solar
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Thanks, Maverick, but I believe it only does dusk-dawn operation of lighting. I
am looking for the opposite. I want dawn to dusk operation of the load, and
shut-off at night.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re
Excellent idea. Grainger has a SPST Relay in a Box rated for 10-30V
AC/DC and 10A. That should work great...
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mick
Abraham
Sent: Monday, January 31
?
Jason Szumlanski
Fafco Solar
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recent Xantrex equipment. That's probably not real
important, but I thought I would opine.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Marco
Mangelsdorf
Sent: Wednesday, December 29, 2010 3:29 PM
/download/349/IMG_0828.JPG
Any suggestions for attachment methods?
Jason Szumlanski
Fafco Solar
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on the pictures I was provided, it looks like the roof will handle
the load... we'll see.
Thanks for the tip.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan
Sindelar
Sent: Wednesday
.
Jason Szumlanski
Fafco Solar
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay
peltz
Sent: Saturday, November 20, 2010 8:09 PM
To: RE-wrenches
Subject: [RE-wrenches] long ground mount
Hi All,
Say
I'm interested to hear more about this. I am getting ready to pull the
trigger on a Lorentz PS200 well pump and controller (never used these
before). I did some research on the SQ Flex, and concluded the Lorentz
would be a good choice, despite the high price.
Jason Szumlanski
Fafco Solar
/DSL Internet is not available, and our customers
are quite upset that they cannot access per module data. As an
installer, so am I. It's nice to see inverter status, but I'd like to
see the power generated also on the local interface.
Jason Szumlanski
Fafco Solar
-Original Message-
From
. The IT part of the installation can definitely be a time drain in
some places, especially large homes.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Nick
Soleil
Sent: Friday, November 05, 2010 3:32 AM
Two options:
1. Avoid (B), use (A), do a supply side tap.
2. Replace panel (probably a good idea to talk customer into this anyway).
Jason Szumlanski
Fafco Solar
On Oct 28, 2010, at 8:20 PM, Dana Brandt d...@ecotechenergy.com wrote:
Hi everyone,
I'm working on two systems for homes
on PV circuit protection?
The system we are replacing is kind of sad, using inline automotive
fuses and a lot of exposed wiring. Ultimately, it would be nice to have
a flexible but completely integrated system.
Jason Szumlanski
Fafco Solar
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Thanks for the recommendation. Yes, 30w. These are outdoor fixtures with many
1w or 3w LEDs.
Yup. Lots of calcs ahead to deal with different runs.
Jason Szumlanski
On Oct 26, 2010, at 7:52 PM, Darryl Thayer daryl_so...@yahoo.com wrote:
Battery to distubution, I would use a T fuse
for a ground rack around here to pass inspection. It would be nice if
a rack manufacturer came up with a slick and cost effective (cheap) method to
cover the back of the panels /racks without losing air flow and meeting code
requirements. I would install that regardless of lax local interpretation.
Jason
Wow. I always check my batteries for voltage when they arrive before
installation. I never thought to check the polarity. I'll look for that
negative symbol on my meter from now on!
Jason Szumlanski
Fafco Solar
On Oct 19, 2010, at 6:22 PM, Kirpal Khalsa solarwo...@gmail.com wrote:
Hey All
understand it.
Jason Szumlanski
Fafco Solar
On Oct 12, 2010, at 6:25 AM, Mark Frye ma...@berkeleysolar.com wrote:
It doesn't sound like you have a supply side connection. It sounds like you
have a load side connection which is upstream of the transfer switch but
still downstream of the service
that the trunk cable makes the system savings less
attractive. The cables for the M190 are already no bargain.
Thanks for the good feedback.
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bruce
Erickson
This doesn't exactly answer your question, but what about doing a
service side tap and avoiding the panel altogether?
Jason Szumlanski
Fafco Solar
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Eric
Thomas
Sent: Tuesday
the circuit based on your logic. I
would not recommend anything manual in a PV system.
Jason Szumlanski
Fafco Solar
-Original Message-
Message: 1
Date: Sun, 26 Sep 2010 12:31:51 -0700
From: Mark Frye ma...@berkeleysolar.com
To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches
disconnect for 208V
Enphase systems that keeps costs in check?
Jason Szumlanski
Fafco Solar
http://fafcosolar.com
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% DOD. The point is, it might be cheaper to increase
capacity and decrease DOD than to buy a higher quality battery that
can handle more cycles to 80% DOD.
Jason Szumlanski
Fafco Solar
Cape Coral, FL
www.FafcoSolar.com
--
Date: Thu, 16 Sep 2010 11:28:39 -0500
From: hol
is always an issue, and I
know the Onan's can be pricey.
Jason Szumlanski
Fafco Solar
-Original Message-
Can you say something more about the system? Is there a PV component?
What
is the size and type of the battery bank?
The thing I am beginning to understand about propane generators
priorities (along with the ever important $).
Jason Szumlanski
Fafco Solar
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Hi Wrenches,
Can anyone help me find a 230W 48V module mfr/model? I am trying to meet
a firm specification for a single panel system to charge either 36V or
48V battery banks.
P.S. I'm not looking for an off-the-shelf Golf Cart conversion kit, just
the panel.
Jason Szumlanski
Fafco Solar
. Imagine dropping 200 similar system applications in their
inbox to cover all quantities of microinverters.
Jason Szumlanski
Fafco Solar
Cape Coral, FL
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systems in the state. Carry on!
Original Message
Subject: [RE-wrenches] FSEC Approval Required for Permit?
From: Jason Szumlanski ja...@fafcosolar.com
To: re-wrenches@lists.re-wrenches.org
Date: 2010/6/3 09:57
Hi Wrenches,
Has anyone dealt with a jurisdiction that requires FSEC
into and A/C transfer switch inlet at the premises, as
if the portable solar energy system is a portable generator. The utility
and the AHJ would not allow a temporary grid-tied PV system.
Any differing opinions?
Jason Szumlanski
Fafco Solar
-Original Message-
Date: Tue, 1 Jun 2010 11:59:01
. Each one seems to
have a sweet spot for accuracy. Strangely enough, although instantaneous
readings often do not appear right, our TED test unit matched our meter
over the last two months within the specs of 2% error.
Jason Szumlanski
Fafco Solar
http://fafcosolar.com
-Original Message
function is good
and 3M just invested in the company. I expect good things in the future.
If you want to view the interface live, you can check mine out at:
http://www.fafcosolar.com/go/TED
Note: MTU1=Net Utility Usage, MTU2=PV production, MTU34=Air
Conditioning.
Jason Szumlanski
Fafco Solar
http
I am installing a PV array at about 400Vdc on a metal roof. The inverter
is located a very long way from the array. I am contemplating just
running a positive conductor for most of the run. I was thinking about
connecting the negative PV conductor to a lug solidly bonded to the
metal roof
Bob,
I guess you don't live in a hurricane prone area! Grid-tied or off-grid,
backup generators are common in this neck of the woods.
Jason Szumlanski
Fafco Solar
Southwest Florida
Original Message
Message: 3
Date: Tue, 30 Mar 2010 12:07:28 -0700
From: boB Gudgel b...@midnitesolar.com
risk it?
Jason Szumlanski
Fafco Solar
http://fafcosolar.com
-Original Message-
All,
If the grid-tie inverter is operating under UL1741 (and therefore
IEEE1547),
then the inverter has to cease output within 1 second of the voltage
going
over 10% of the base voltage. So in the case where
there is a compelling reason to do otherwise.
Jason Szumlanski
Fafco Solar
http://fafcosolar.com
Hi Eric:
Did you notice my e-mail on this subject last week? I was hoping that
someone would have some new, more concrete information on this subject, but I
guess the old story still applies. Here is the basic
it would be a big help in this mismatch
issue.
Jason Szumlanski
Fafco Solar
http://fafcosolar.com
At 07:51 AM 2/25/2010, you wrote:
I have been very concerned that every time we settle on a module brand
and
size for a project, the manufacturer switches production or design and
these older
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