All,
Great points and a little education of others' feelings about,
essentially how granular we need to be in monitoring.
I'm curious who is monitoring the Enphase systems in the solar world,
seriously. I know 95% of my customers are more concerned about catching the
bus or
I would not classify what we are doing in PV as SCADA.
It is purely data acquisition at this point, and more commonly referred to
as DAS or a Data Acquisition System.
SCADA by its definition entails a two way path of both receiving data and
being able to send control signals, usually from a bi
Yeah, Florida is in the dark ages of solar in more ways than one. We're on
2008 still.
One area enlightened/progressive jurisdiction has eliminated the additional
electrode requirement altogether in light of the 2011 code cycle taking
effect soon. The one I am dealing with is notorious for making
Hi Jason,
Do you need to go under the 2008 NEC or can you look at 2011? 2008 is
notorious for being confusing in this area.
Best,
August
*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *Jason Szumlanski
*Sent:* Monday, September 29, 2014 11:54 AM
*To
We are 100% on the same page. That is the technique we use and the argument
I make. In a large proportion of cases we have modules directly above the
existing premises grounding electrode, or otherwise where an additional
grounding electrode would be "as close as practicable" to a location within
6
The 2nd problem with the Envoy besides cost is that it isn't always
reliable.Communication through power lines is not a new or fresh
idea, and has Always been problematic. Once you install something you
are expected to make it work, and that can be a nightmare on say an 8
module system tha
this is where i get mine:http://www.visionmetering.com/products/refurbished-electric-meters/
On Monday, September 29, 2014 7:12am, "Christopher Warfel" said:
Bill, The refurbished utility meter is the lowest cost option that meets the requirements of accuracy for RECs that I am aware of. Chr
Definitely could use some clarification. The 690 definition of an array
says "mechanically integrated", which sort of implies each roof plane is
its own array.
However in terms of actual PV design terminology, each PV system has
only one array which may consist of many subarrays. Even a 25 MW p
Hi Bill,
One of the largest benefits of the microinverter system, in my opinion, is
the ability to monitor each module individually. It might seem like ~$500
is a lot for the Envoy but I think it is well worth it when you think about
the 25 year warranty period and included ongoing monitoring. W
Bill, The refurbished utility meter is the lowest cost option that meets
the requirements of accuracy for RECs that I am aware of. Chris
On 9/28/2014 5:25 PM, frenergy wrote:
CA wrenches,
I'm trying to (for the sake of my monetarily impaired
customers) figure out a less expensive way to
The definition of Array in 690.2 is ambiguous. Figure 690.1(A) seems to
indicate that groups of modules on different roof surfaces could be
considered a single array. The textual definition itself could be construed
either way. We have successfully argued that an entire roof mounted system
with mod
We are using some cheap DIN rail mounted meters KWh and Power.
https://www.google.com.ai/search?q=din+mounted+kwh+meter&espv=2&biw=1417&bih=651&tbm=isch&imgil=_2bn5GdNKZlXVM%253A%253BodfkJDUWrivfzM%253Bhttp%25253A%25252F%25252Fwww.fymeter.com%25252Fproductshow%25252F%25253F61-1-Energy-Meter.html&s
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