Dana Brandt
d...@ecotechsolar.com
360.318.7646 x700
www.ecotechsolar.com
On Tue, May 8, 2018 at 12:15 PM Blake Gleason
wrote:
> Hi Matt - A couple of years ago, I worked extensively with an inverter
> manufacturer (sorry I can't name) who was seeing a lot of arc-fault
> nuisance
Thanks, Kirk. I understand that if a panel isn't list for other than
vertical mounting we can't lay it down. I was hoping a wrench may know of a
panel that *is* listed for other than vertical mounting.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
Hi Wrenches,
I'm curious if anyone has updates to this thread 3 years later. What are
people using to lift modules to the roof?
I've been looking at ladder hoists online and wondering how well they'd
work in practice. Any experience or advice?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems
Hi Jason,
We've used Unirac for years but have been contemplating Ironridge. I'm
curious what your experience was and why you went back to Unirac?
Anyone else have input on best racking systems for flush-mounted
residential systems on comp roof?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems
in
the code. We'll see
Thanks again!
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
On Mon, Nov 3, 2014 at 12:45 PM, August Goers aug...@luminalt.com wrote:
Hi Dana,
This is still a confusing issue, I agree. This article helps a bit
new TL inverters
and found this:
Per NEC 690.47, a GEC must be installed, and the Grounding Electrode
Terminal (GET) conductor must be sized in accordance with NEC article
250.166.
What am I missing?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
Hi Allen,
Thanks for the assessment. I think that makes a lot of sense. I prefer to
be conservative with my grid-tied numbers, too. Maybe I'll just round down
the Suneye projections.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
On Tue
for
string shading.
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
On Tue, Oct 28, 2014 at 10:48 PM, William Miller will...@millersolar.com
wrote:
Dana:
You can evaluate multiple points with a Pathfinder, thusly:
1.In case
?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
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differently for different AC voltages.
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
On Wed, Jun 4, 2014 at 3:53 PM, Bill Brooks billbroo...@yahoo.com wrote:
Folks,
Voc does not degrade as much as Isc, but neither is key
on the array over 30
years.
Thanks,
Dana
Dana Brandt
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We haven't used any of these yet but I'm considering it. Anyone have any
experience they can share?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
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Thanks for the input everyone. She's pretty set on getting rid of them.
I'll recommend hosing them down with water at night. I think she's going to
want to go chemical, though. I'd love to hear anyone's experience with
sprays damaging the backsheet or not.
Thanks,
Dana
Dana Brandt
Ecotech
Hi all,
What Davis Bacon federal wage categories do you use for different aspects
of installation? Electrician is obvious for direct electrical work, but how
about roof penetrations and rails? Moving and placing ballast blocks?
Modules?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
We just did a system on 10 degree AET and liked it. I think they have a 30
degree option. I'd be worried about inter-row shading, though.
The DPW POWER-FAB BRM has more flexibility with row spacing, but I found it
to be pretty expensive.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
Enphase recommends this ferrite toroid you can put on the lines to the pump
to filter out the noise:
http://www.digikey.com/scripts/DkSearch/dksus.dll?vendor=0keywords=Epcos%20B64290L0082X087cur=USD
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
I just bought some Aluminum Trim Channel for 3/4 Plywood and it fits
perfectly over the end of the rail.
It's very similar to this:
http://www.lowes.com/pd_55981-37672-11385_0__?productId=3058185
Thanks everyone your input!
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d
fully installed. Unirac has endcaps for the SunFrame, but those
aren't compatible with SolarMount. Anyone run into this before? Thoughts on
solutions?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.318.7646
the other and a
third has two from each side. The one with two from each side produces the
exact average of the other two. The theory works!
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Wed, Apr 4, 2012 at 11:39 AM, Howie Michaelson ho
on
compression on the rubber for the rest of time in order to stay water
tight. It seems to me that an adhesive might still hold water better if
things loosen up a bit over the next 30 years. Eternabond has been
recommended here in the past for this. Thoughts?
Dana
Dana Brandt
Ecotech Energy Systems
.*
Is there something special in the busing on these main-lug-only panels that
means we don't have to be so conservative or is it a matter of the code not
really being consistent?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Mon
that top bus. Can we consider a
connection there a supply side tap? If not, who do we do the 690.64 (B) (2)
calculation without a main breaker?
Thanks!
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Thu, Oct 28, 2010 at 6:37 PM, Matt Lafferty
I have a system with Enphase inverters that has a 1/2 cable crossing 8-10ft
above the array. I used the Enphase inverters specifically for isolating
that shading, but have seen no noticeable impact on production from the
modules being shaded.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
with 690.64
(B) (2) when there's no main breaker?
Thanks!
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
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Xantrex GT.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Mon, Jun 7, 2010 at 11:22 AM, i2p i...@aol.com wrote:
SORRY FOR THE BLANK,
I am replacing some GT 3.0 multiple times. Though Xantrex pays the labor,
this is still a crummy deal
Do those apps have location specific info that will translate percentage sky
blockage into percent annual solar energy so it can be used for PV
calculations?
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Thu, May 13, 2010 at 10:40 AM
is a good design.
I recently installed 4kW of 230s with the Enphase 190s and have seen their
output as high as 199W.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Fri, May 7, 2010 at 4:48 PM, Chris Worcester ch...@solarwindworks.comwrote
not around here.
One thing to consider is that if you go with smaller modules you need more
inverters. You might compare the cost of the additional inverters to the
value of the 0.2% energy loss from clipping over the lifetime of the system.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
Hi August,
I wrote a not-too-technical description of anti-islanding for the Ask the
Experts section of Home Power a while back. You can find it online at:
http://homepower.com/article/?file=HP130_pg28_ATE_2 or in print in the
Apr/May 2009 (#130) issue.
Dana
Dana Brandt
Ecotech Energy Systems
on standing seam roof.
I'm a big fan of Unirac, but I think they missed on this one.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Sat, Jan 16, 2010 at 3:06 PM, solarepiph...@gmail.com wrote:
Erika,
I can tell you from experience
Conergy and SunWize carry them.
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Tue, Dec 8, 2009 at 6:51 AM, Drake Chamberlin
drake.chamber...@redwoodalliance.org wrote:
Does anyone have a source for Sanyo 210N Hit Power Modules?
Thank
In my experience tightening the fuse holder and cleaning the contacts didn't
help but a 30 minute burn in did the trick. No problems since. SMA tech
support said this has be a common problem for them in humid environments.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d
Thanks, Randy. Do you have a reference for the depreciable basis being
reduced by half the tax credit? I've emailed the treasury dept. and will
report back what I hear from them.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Tue, Sep
Thanks, David! That's exactly what I needed.
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Wed, Sep 30, 2009 at 12:34 PM, David Brearley
david.brear...@solarprofessional.com wrote:
Dana,
Here is an excerpt from the latest SEIA
Wrenches,
I feel like this must have been discussed before, but I can't find it in the
archives.
If a business takes the 30% federal grant, do they get to depreciate 100% of
the system cost, or just the remaining 70%?
Thanks,
Dana
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
That's our experience here in Washington, too.
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
360.510.0433
On Wed, Mar 4, 2009 at 11:37 AM, Louis Woofenden lo...@woofenden.netwrote:
Hi Andrew,
We haven't been able to get any of the utilities
of each individual module as well as any number
of energy production reports and the like. It's addicting!
I think in certain applications (very small systems, partial shading,
multiple module orientations) they're a great solution.
Best,
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
--
Dana Brandt
Ecotech Energy Systems, LLC
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already have the XW? If not, another option for AC coupling would be
to talk with Outback. They've done a few of these systems and can help you
put it together.
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
d...@ecotechenergy.com
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On Sun, Jan 18, 2009 at 9:31 PM
from the inspection which verified that - yes indeed, there
are L-feet and rails on the roof. Seems pretty silly...
Thanks again,
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
[EMAIL PROTECTED]
360.510.0433
On Tue, Dec 9, 2008 at 8:11 AM, Paul Israel [EMAIL PROTECTED
for AC minigrids and the multi-master operation in HP 109 - Oct/Nov 2005.
It's frustrating to me that SMA hasn't UL listed a full-featured SI for us
in the States, but they must figure it doesn't make financial sense for
them.
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
a detrimental impact on the performance, but it doesn't
seem to me that it could account for all of that energy loss.
Thoughts?
Thanks a lot!
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
[EMAIL PROTECTED]
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