[RE-wrenches] low cost DAS systems

Tue Apr 13 18:44:22 PDT 2010

Hi

http://www.deckmonitoring.com/index.html

My understanding is that this is not low cost, but something to ponder for larger systems.

________________________________
From: Darryl Thayer <daryl_solar at yahoo.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Tue, April 13, 2010 3:03:05 PM
Subject: Re: [RE-wrenches] low cost DAS systems

Hi Peter APRS world has a revinue grade DAS 
James could advise you as to multiple power inputs.  I also think he as alarm settings..   On a demand reduction system I am just performing monitoring using a very cheap 
TED.  I am working on a building with 800 amp single phase service,  I just purchased a couple of CTs busbar clamp size and replaced the factory supplied ones.  But I am taking a different route for my inverter generator control.  
Daryl

--- On Tue, 4/13/10, Philip Boutelle <philboutelle at gmail.com> wrote:

>From: Philip Boutelle <philboutelle at gmail.com>
>Subject: Re: [RE-wrenches] low cost DAS systems
>To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
>Date: Tuesday, April 13, 2010, 2:36 PM
>
>
>eGauge is not revenue grade, but could cover your requirements (1), (2), and (2). The proprietor David Mosberger-Tang (davidm at egauge.net) is pretty savvy with programming too, and he might be amenable to adding a programmable alarm, since it is just software. Depending on how many loads you need to monitor (how many CTs you need), parts would be in the $1,000 range.
>
>Fat Spaniel could do all of it, but it can be difficult to get the attention you need if the project has custom programming aspects. And you are stuck paying a monthly fee for the life of the system.
>
> >
>Phil Boutelle
>Project Engineer
>NABCEP Certified Solar PV Installer TM
>Real Goods Solar, Inc. 
>831.477.0943 office
>831.359.5268 mobile 
>831.477.0944 fax
>www.RealGoodsSolar.com
>
>
>On Tue, Apr 13, 2010 at 12:16 PM, Peter Parrish <peter.parrish at calsolareng.com> wrote:
>
>I am joining this thread a little late, so I may have missed a bifurcation
>>into a related area.
>>
>>We have need for a DAS system that does the following:
>>
>>(1) Monitors inverter output, including some bigger commercial sized
>>inverters from Satcon and SMA (100 kW to 500 kW)
>>(2) Monitors utility input at service panel
>>(2) Monitors several loads (up to five) via the service panel
>>(3) Irradiance and temperature would be great but not absolutely necessary
>>(4) Some sort of alarm system that would trigger at a programmable kW
>>threshold for the utility input.
>>
>>What we are trying to do is monitor not only the PV system but the utility
>>demand and key loads as well, and to come up with a strategy for shedding
>>load to keep the demand below a certain amount.
>>
>>I know this is a fairly tough spec, and
>> we may have to do some customization
>>and/or programming to get what we want.
>>
>>- Peter
>>
>>
>>Peter T. Parrish, Ph.D., President
>>California Solar Engineering, Inc.
>>820 Cynthia Ave., Los Angeles, CA 90065
>>CA Lic. 854779, NABCEP Cert. 031806-26
>>peter.parrish at calsolareng.com
>>Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
>> 
>>
>>
>>
>>-----Original Message-----
>>From: re-wrenches-bounces at lists.re-wrenches.org
>>
>>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jeff Irish
>>Sent: Monday, April 12, 2010 12:37 PM
>>To: RE-wrenches
>>Subject: Re: [RE-wrenches] low cost DAS systems
>>
>>The Locus system is less than $1,000 for single phase.
>>Jeff
>>
>>-----Original Message-----
>>From: re-wrenches-bounces at lists.re-wrenches.org
>>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
>>wlbryce at pineridgeproducts.com
>>Sent: Monday, April 12, 2010 2:50 PM
>>To: RE-wrenches
>>Subject: Re: [RE-wrenches] low cost DAS systems
>>
>>
>>I think the big this here is Low cost? Maybe we should define the price
>>range so we can get a better fell of the product range?
>>
>>
>>Logan
>>
>>
>>> Chris,
>>>
>>>
>>>
>>> Locus Energy has a low cost, revenue grade system that will work with
>>> all inverters.  We have several dozen deployed and they're working
>>well.
>>> Customer needs to have a high speed internet connection.
>>>
>>>
>>>
>>> www.locusenergy.com<http://www.locusenergy.com/>
>>>
>>>
>>>
>>> I've tried the TED and found it to be more of a toy than a serious
>>> contractor product, although it may meet some user's needs.  The Locus
>>> system is more accurate and robust, with much greater data storage.
>>>
>>>
>>>
>>> Jeff Irish
>>>
>>> Hudson Valley Clean Energy
>>>
>>>
>>>
>>>
>>>
>>> ________________________________
>>>
>>> From: re-wrenches-bounces at lists.re-wrenches.org
>>> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Marco
>>> Mangelsdorf
>>> Sent: Monday, April 12, 2010 1:12 PM
>>> To: chris at solarandwindfx.com; 'RE-wrenches'
>>> Subject: Re: [RE-wrenches] low cost DAS systems
>>>
>>>
>>>
>>> Chris,
>>>
>>>
>>>
>>> I've had one of my guys research this same question a while ago and
>>the
>>> conclusion was the as far as low-cost DAS systems, Fat Spaniel was the
>>> big winner, as in under $1,000 which includes a year's worth of
>>> monitoring.
>>>
>>>
>>>
>>> Cheers,
>>>
>>> marco
>>>
>>>
>>>
>>> Good Day Wrenches,
>>>
>>>             I'm looking for suggestions
>> for a low cost DAS system for
>>> home/small commercial use. It just seems to be such a useful basic
>>tool
>>> to verify performance other than just the Kwh meter. I'd like to add
>>> this to all of our clients quotes and projects. Looking for the basics
>>> like module temperature and irradiance and it would be nice if it
>>would
>>> tie into the existing inverters DAS like an Enphase, Fronius or SMA to
>>> name a few since they already have inverter and PV in/output
>>> information. Or is Fat Spaniel and Helitronics my only options
>>> otherwise? Thanks for the help ahead of time.
>>>
>>>
>>>
>>> Christopher
>>>
>>>
>>>
>>>                            Chris Schaefer's
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> WHERE KNOWLEDGE EQUALS POWER
>> INDEPENDENCE
>>>
>>>
>>>
>>>
>>> Specializing in Off-Grid Electricity for Remote Homes
>>>
>>> Grid-Tied Power for Residential and Commercial Sites
>>>
>>>
>>>
>>> Tel 585-229-2083 ~ Cell 585-748-1870
>>>
>>> 5115 South Hill Road
>>>
>>> Canandaigua New York 14424
>>>
>>> www.solarandwindfx.com<http://www.solarandwindfx.com/>  ~
>>> chris at solarandwindfx.com
>>>
>>>
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com
>>> Version: 9.0.801 / Virus Database: 271.1.1/2805
>> - Release Date:
>>04/11/10
>>> 08:32:00
>>>
>>> _______________________________________________
>>> List sponsored by Home Power magazine
>>>
>>> List Address: RE-wrenches at lists.re-wrenches.org
>>>
>>> Options & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>>
>>> List-Archive:
>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>>
>>> List rules & etiquette:
>>> www.re-wrenches.org/etiquette.htm
>>>
>>> Check out participant bios:
>>> www.members.re-wrenches.org
>>>
>>>
>>
>>
>>_______________________________________________
>>List sponsored by Home Power magazine
>>
>>List Address: RE-wrenches at lists.re-wrenches.org
>>
>>Options & settings:
>>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>>List-Archive:
>>http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>>List rules & etiquette:
>>www.re-wrenches.org/etiquette.htm
>>
>>Check out participant bios:
>>www.members.re-wrenches.org
>>
>>_______________________________________________
>>List sponsored by Home Power magazine
>>
>>List Address: RE-wrenches at lists.re-wrenches.org
>>
>>Options & settings:
>>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>>List-Archive:
>>http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>>List rules & etiquette:
>>www.re-wrenches.org/etiquette.htm
>>
>>Check out participant bios:
>>www.members.re-wrenches.org
>>
>>
>>
>>_______________________________________________
>>List sponsored by Home Power magazine
>>
>>List Address: RE-wrenches at lists.re-wrenches.org
>>
>>Options & settings:
>>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>>List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>>List rules & etiquette:
>>www.re-wrenches.org/etiquette.htm
>>
>>Check out participant bios:
>>www.members.re-wrenches.org
>>
>>
>
>-----Inline Attachment Follows-----
>
>
>_______________________________________________
>List sponsored by Home Power magazine
>
>List Address: RE-wrenches at lists.re-wrenches.org
>
>Options & settings:
>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
>List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
>List rules & etiquette:
>www.re-wrenches.org/etiquette.htm
>
>Check out participant bios:
>www.members.re-wrenches.org
>
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100413/a57169fb/attachment-0004.html>