Re: [RE-wrenches] SD card data processing

[Mac Lewis]

My original stab at this works; its a script based in an open-source
language called R.  It easily handles the large data files.  It will merge
the files, based on device type, pull out error codes etc.  The problem is
that it is cmd line based and is a pain to customize when you are rusty
with code.  I'm looking for something with an easy GUI, and lots of feature
rich graphs that I can show clients without spending hours doing it.

Thanks

On Mon, Aug 7, 2017 at 1:34 PM, Chris Mason 
wrote:

> Probably over qualified.
>
> My consultant for setting up MySQL wind and solar data dumps is a high
>> school kid ;-)
>>
>>
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-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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Re: [RE-wrenches] SD card data processing

[Chris Mason]

Probably over qualified.

My consultant for setting up MySQL wind and solar data dumps is a high
> school kid ;-)
>
>
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Re: [RE-wrenches] SD card data processing

[Dan Fink]

My consultant for setting up MySQL wind and solar data dumps is a high
school kid ;-)

Dan Fink
Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342



On Mon, Aug 7, 2017 at 1:22 PM, Chris Mason 
wrote:

> I would run MySQL on my computer and write a python script to import the
> data to MySQL, and use a front end package to graph the data - it's pretty
> easy to do.
> If that's more than you can handle, go to Guru.com and setup an account,
> describe what yo uwant done, and there's plenty of willing takers that will
> write the code to do it nicely.
>
> On Mon, Aug 7, 2017 at 3:15 PM, Dan Fink  wrote:
>
>>
>> Hi Mac -- yep, at about 50k data points Excel seizes up no matter how
>> fast your computer. You really need to use a database program after that
>> point.
>> I had a friend arrange a web API into MySQL on our server and it works
>> fine.
>>
>>
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Re: [RE-wrenches] SD card data processing

[Chris Mason]

I would run MySQL on my computer and write a python script to import the
data to MySQL, and use a front end package to graph the data - it's pretty
easy to do.
If that's more than you can handle, go to Guru.com and setup an account,
describe what yo uwant done, and there's plenty of willing takers that will
write the code to do it nicely.

On Mon, Aug 7, 2017 at 3:15 PM, Dan Fink  wrote:

>
> Hi Mac -- yep, at about 50k data points Excel seizes up no matter how fast
> your computer. You really need to use a database program after that point.
> I had a friend arrange a web API into MySQL on our server and it works
> fine.
>
> Dan Fink
> Professor of Solar Energy Technology, Ecotech Institute
> IREC Certified Instructor™ for:
> ~ PV Installation Professional
> ~ Small Wind Installer
> Executive Director, Buckville Energy
> NABCEP Registered Continuing Education Providers™
> 970.672.4342
>
>
>
> On Mon, Aug 7, 2017 at 9:17 AM, Mac Lewis  wrote:
>
>> Hi Wrenches,
>>
>> I am getting more and more zipped up SD card data emailed from clients
>> from their Outback Mate 3s, Sunny Islands and other systems that we have
>> out there.  The data can be very laborious to process and will crash Excel
>> most of the time because of the sheer quantity of data.  Also oftentimes,
>> you need to merge these data sets to get a true picture of how these power
>> systems are functioning.
>>
>> Do you have recommendations for 3rd party programs to help process and
>> analyse this data?  I am looking closely at WattPlot SunMate to use with
>> the Outback stuff.  Maybe there is a better way?  I'm interested in any
>> feedback about WattPlot products in general as well.
>>
>> Thanks in advance
>>
>> --
>>
>>
>>
>> Mac Lewis
>>
>> *"Yo solo sé que no sé nada." -Sócrates*
>>
>
>
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-- 
Chris Mason
NABCEP Certified Solar PV Installer™
Solar Design Engineer
Generac Generators Industrial technician

www.cometsolar.com 
264.235.5670
869.662.5670
Skype: netconcepts
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Re: [RE-wrenches] SD card data processing

[Dan Fink]

Hi Mac -- yep, at about 50k data points Excel seizes up no matter how fast
your computer. You really need to use a database program after that point.
I had a friend arrange a web API into MySQL on our server and it works fine.

Dan Fink
Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342



On Mon, Aug 7, 2017 at 9:17 AM, Mac Lewis  wrote:

> Hi Wrenches,
>
> I am getting more and more zipped up SD card data emailed from clients
> from their Outback Mate 3s, Sunny Islands and other systems that we have
> out there.  The data can be very laborious to process and will crash Excel
> most of the time because of the sheer quantity of data.  Also oftentimes,
> you need to merge these data sets to get a true picture of how these power
> systems are functioning.
>
> Do you have recommendations for 3rd party programs to help process and
> analyse this data?  I am looking closely at WattPlot SunMate to use with
> the Outback stuff.  Maybe there is a better way?  I'm interested in any
> feedback about WattPlot products in general as well.
>
> Thanks in advance
>
> --
>
>
>
> Mac Lewis
>
> *"Yo solo sé que no sé nada." -Sócrates*
>
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Re: [RE-wrenches] SimpliPhi Power PHI3.4 Smart -Tech Batteries and LifeBlue

[Dave Angelini Offgrid Solar]

Chris,

I am impressed with a first look at Lifeblue. They seem much easier to
integrate that Simpliphi with their larger capacity and Soc data out
wireless!!!  To me this is a huge feature for my clients and myself.

On first look I will say I have been testing the LG RESU10 since last
year. To me they are the benchmark for a couple reasons. LG Chem is a 20
billion dollar company with (unlike Tesla) over 20 years of profitability.
So I feel they will be there.

The second is how the BMS calculates and continuously calibrates the Soc.
This is very different to me than any battery monitor I have used. This
becomes apparent when one goes for a week or more without getting to 100%
Soc. The LG is extremely accurate. The protection on the LG is as good as
I can think of with contactor, overcurrent protection from both a
breaker/Disco and a class T fuse. I have tested them in a DC input short
(failed DC Inverter input). It works!

So, at this time I would say the Lifeblue needs to prove itself and I
would be happy to keep an eye on all the early adapters :)

Schneider did release the Bridge for LG Chem BTW, and Outback has delayed
the Skybox until 2018 which is being tested with LG Chem also.

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

> Have you tried them, are they reliable?
>
> On Mon, Aug 7, 2017 at 1:05 PM, Starlight Solar Power Systems <
> la...@starlightsolar.com> wrote:
>
>> Hi Jay and Dave,
>>
>> LiFeBlue battery has a wireless Bluetooth monitor that is connected to
>> the
>> BMS in each battery. SoC, current, cycle life, voltage, health, battery
>> faults and more is provided on the free IOS or Android App. Up to 62kWh
>> at
>> 48 volts available today.
>>
>> http://www.lifebluebattery.com/the-smartest-lithium-battery/index.html
>>
>> Larry
>>
>>
>> On Aug 4, 2017, at 5:05 PM, Jay  wrote:
>>
>> Yes true. I haven't found the perfect off grid lithium battery.  But
>> until
>> the prices come down, I become a better sales person, or I get rich
>> clients
>> not a big problem for me.
>> You will have to use external % meter, but been doing that for long
>> time.
>>
>> Sure good comm would be better, however one of the questions no one
>> seems
>> to have an answer for is energy consumption for the BMS, any BMS.
>>
>> On a different note, how does the LG or PW deal with dark start?  If it
>> shuts down due to low voltage, how do you get it started again?
>>
>> Jay
>>
>>
>>
>>
>>
>>
>> > On Aug 4, 2017, at 4:26 PM, Dave Angelini Offgrid Solar <
>> offgridso...@sti.net> wrote:
>> >
>> > Jay,
>> >
>> > Without battery BMS data for Soc how does one know? I assume you need
>> an
>> > external shunt and an energy monitor? Any guidance from the
>> manufacturer?
>> >
>> > One of the nice things about the LG resu 10 is the data is all there
>> and
>> > it stays very accurate even on a week with never finishing charge to
>> > 100%.
>> >
>> >
>> > Dave Angelini Offgrid Solar
>> > "we go where powerlines don't"
>> > http://members.sti.net/offgridsolar/
>> > e-mail  offgridso...@sti.net
>> > text 209 813 0060
>>
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>
>
> --
> Chris Mason
> NABCEP Certified Solar PV Installer™
> Solar Design Engineer
> Generac Generators Industrial technician
>
> www.cometsolar.com 
> 264.235.5670
> 869.662.5670
> Skype: netconcepts
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Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

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Re: [RE-wrenches] SimpliPhi Power PHI3.4 Smart -Tech Batteries

[Chris Mason]

Have you tried them, are they reliable?

On Mon, Aug 7, 2017 at 1:05 PM, Starlight Solar Power Systems <
la...@starlightsolar.com> wrote:

> Hi Jay and Dave,
>
> LiFeBlue battery has a wireless Bluetooth monitor that is connected to the
> BMS in each battery. SoC, current, cycle life, voltage, health, battery
> faults and more is provided on the free IOS or Android App. Up to 62kWh at
> 48 volts available today.
>
> http://www.lifebluebattery.com/the-smartest-lithium-battery/index.html
>
> Larry
>
>
> On Aug 4, 2017, at 5:05 PM, Jay  wrote:
>
> Yes true. I haven't found the perfect off grid lithium battery.  But until
> the prices come down, I become a better sales person, or I get rich clients
> not a big problem for me.
> You will have to use external % meter, but been doing that for long time.
>
> Sure good comm would be better, however one of the questions no one seems
> to have an answer for is energy consumption for the BMS, any BMS.
>
> On a different note, how does the LG or PW deal with dark start?  If it
> shuts down due to low voltage, how do you get it started again?
>
> Jay
>
>
>
>
>
>
> > On Aug 4, 2017, at 4:26 PM, Dave Angelini Offgrid Solar <
> offgridso...@sti.net> wrote:
> >
> > Jay,
> >
> > Without battery BMS data for Soc how does one know? I assume you need an
> > external shunt and an energy monitor? Any guidance from the manufacturer?
> >
> > One of the nice things about the LG resu 10 is the data is all there and
> > it stays very accurate even on a week with never finishing charge to
> > 100%.
> >
> >
> > Dave Angelini Offgrid Solar
> > "we go where powerlines don't"
> > http://members.sti.net/offgridsolar/
> > e-mail  offgridso...@sti.net
> > text 209 813 0060
>
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-- 
Chris Mason
NABCEP Certified Solar PV Installer™
Solar Design Engineer
Generac Generators Industrial technician

www.cometsolar.com 
264.235.5670
869.662.5670
Skype: netconcepts
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Re: [RE-wrenches] SimpliPhi Power PHI3.4 Smart -Tech Batteries

[Starlight Solar Power Systems]

Hi Jay and Dave,

LiFeBlue battery has a wireless Bluetooth monitor that is connected to the BMS 
in each battery. SoC, current, cycle life, voltage, health, battery faults and 
more is provided on the free IOS or Android App. Up to 62kWh at 48 volts 
available today.

http://www.lifebluebattery.com/the-smartest-lithium-battery/index.html

Larry


On Aug 4, 2017, at 5:05 PM, Jay  wrote:

Yes true. I haven't found the perfect off grid lithium battery.  But until the 
prices come down, I become a better sales person, or I get rich clients not a 
big problem for me. 
You will have to use external % meter, but been doing that for long time. 

Sure good comm would be better, however one of the questions no one seems to 
have an answer for is energy consumption for the BMS, any BMS.  

On a different note, how does the LG or PW deal with dark start?  If it shuts 
down due to low voltage, how do you get it started again?

Jay






> On Aug 4, 2017, at 4:26 PM, Dave Angelini Offgrid Solar 
>  wrote:
> 
> Jay,
> 
> Without battery BMS data for Soc how does one know? I assume you need an
> external shunt and an energy monitor? Any guidance from the manufacturer?
> 
> One of the nice things about the LG resu 10 is the data is all there and
> it stays very accurate even on a week with never finishing charge to
> 100%.
> 
> 
> Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> e-mail  offgridso...@sti.net
> text 209 813 0060

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[RE-wrenches] SD card data processing

[Mac Lewis]

Hi Wrenches,

I am getting more and more zipped up SD card data emailed from clients from
their Outback Mate 3s, Sunny Islands and other systems that we have out
there.  The data can be very laborious to process and will crash Excel most
of the time because of the sheer quantity of data.  Also oftentimes, you
need to merge these data sets to get a true picture of how these power
systems are functioning.

Do you have recommendations for 3rd party programs to help process and
analyse this data?  I am looking closely at WattPlot SunMate to use with
the Outback stuff.  Maybe there is a better way?  I'm interested in any
feedback about WattPlot products in general as well.

Thanks in advance

-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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Re: [RE-wrenches] Battery load tester purchase advice?

[Ray]

I also recently purchased a Variac.  They are really nice for dialing in 
voltage, especially when testing old AC equipment. Line voltage here is 
almost 125 vac these days, while old tube equipment was designed for 110 
vac.   Its also a great way to slow down power tools for better 
control.  So a Variac has lots of uses  besides load control. You just 
have to be careful because it can output up to 145 vac.  I plug a Kill A 
Watt meter into the output to double check the voltage, as the markings 
on the control and the on board meter are not accurate.


https://www.circuitspecialists.com/variac-variable-ac-ps05kva.html?otaid=gpl&gclid=EAIaIQobChMI56mLvLDF1QIVBIC9Ch1NEQhqEAkYAiABEgKEgfD_BwE

Every mad scientist should have one.

R. Ray Walters
Chief Technical Officer, RemoteSolar.com
BS Mech Engineering, 1988
Former NABCEP Certified, 2004-2016
Licensed Master ELectrician, Colorado
303 505-8760

On 8/7/17 8:27 AM, RE Ellison wrote:

Put one or two of the lightbulbs on a Rheostat and uses for fine control

I got lucky and found an old ohmite load bank real reasonable

Big and bulky you don't want to carry it far !

Bob ellison

On Aug 7, 2017, at 9:51 AM, Dan Fink > wrote:


Thanks to everyone for their input, it really clarified how to get 
the data Trojan is looking for. I am going to go with what we have in 
stock as a "Trojan Approved" load tester is out of my price range, 
and the reasonably priced auto parts store ones hit you 100+ amps 
plus as they are trying to test CCA, not SOC. I have a voltage 
logging USB unit along with a current logger and CT. We'll use a 
small inverter and switchable AC light bulbs for load so that it 
stays constant at the 25A Trojan wants to see, and in the future 
we'll be able to adjust it for amperage by switching in and out more 
light bulbs.


Dan Fink
Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342 


On Mon, Aug 7, 2017 at 2:05 AM, Hugh > wrote:


I have used a load resistor on a voltage controlled relay VCS
from solar converters and a USB data logger. I only used the
relay because I didn't want to kill the battery or sit watching.
USB voltage loggers are good things to own anyway.

Hugh


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Re: [RE-wrenches] Battery load tester purchase advice?

[RE Ellison]

Put one or two of the lightbulbs on a Rheostat and uses for fine control

I got lucky and found an old ohmite load bank real reasonable

Big and bulky you don't want to carry it far !

Bob ellison

> On Aug 7, 2017, at 9:51 AM, Dan Fink  wrote:
> 
> Thanks to everyone for their input, it really clarified how to get the data 
> Trojan is looking for. I am going to go with what we have in stock as a 
> "Trojan Approved" load tester is out of my price range, and the reasonably 
> priced auto parts store ones hit you 100+ amps plus as they are trying to 
> test CCA, not SOC. I have a voltage logging USB unit along with a current 
> logger and CT. We'll use a small inverter and switchable AC light bulbs for 
> load so that it stays constant at the 25A Trojan wants to see, and in the 
> future we'll be able to adjust it for amperage by switching in and out more 
> light bulbs. 
> 
> Dan Fink
> Professor of Solar Energy Technology, Ecotech Institute
> IREC Certified Instructor™ for: 
> ~ PV Installation Professional
> ~ Small Wind Installer
> Executive Director, Buckville Energy
> NABCEP Registered Continuing Education Providers™
> 970.672.4342
> 
>  
> 
>> On Mon, Aug 7, 2017 at 2:05 AM, Hugh  wrote:
>> I have used a load resistor on a voltage controlled relay VCS from solar 
>> converters and a USB data logger. I only used the relay because I didn't 
>> want to kill the battery or sit watching. USB voltage loggers are good 
>> things to own anyway.
>> 
>> Hugh
>> 
>> 
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Re: [RE-wrenches] Battery load tester purchase advice?

[Dan Fink]

Thanks to everyone for their input, it really clarified how to get the data
Trojan is looking for. I am going to go with what we have in stock as a
"Trojan Approved" load tester is out of my price range, and the reasonably
priced auto parts store ones hit you 100+ amps plus as they are trying to
test CCA, not SOC. I have a voltage logging USB unit along with a current
logger and CT. We'll use a small inverter and switchable AC light bulbs for
load so that it stays constant at the 25A Trojan wants to see, and in the
future we'll be able to adjust it for amperage by switching in and out more
light bulbs.

Dan Fink
Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342



On Mon, Aug 7, 2017 at 2:05 AM, Hugh  wrote:

> I have used a load resistor on a voltage controlled relay VCS from solar
> converters and a USB data logger. I only used the relay because I didn't
> want to kill the battery or sit watching. USB voltage loggers are good
> things to own anyway.
>
> Hugh
>
>
>
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Re: [RE-wrenches] Battery load tester purchase advice?

[Hugh]

I have used a load resistor on a voltage controlled relay VCS from solar 
converters and a USB data logger. I only used the relay because I didn't want 
to kill the battery or sit watching. USB voltage loggers are good things to own 
anyway.

Hugh

On 6 August 2017 17:18:51 BST, Steve Higgins  wrote:
>Since Surrette was mentioned, even if you used the house loads and
>monitored the load current on the batteries with a DC current clamp...
>That
>would work for us... there is a webinar on the procedure on our YouTube
>channel.
>
>
>
>On Aug 6, 2017 5:40 PM, "Dave Angelini Offgrid Solar"
>
>wrote:
>
>> This is a bare bones but easy method. I am not sure Trojan would
>approve.
>> You need a working bank and an inverter. A variac is used to set the
>AC
>> voltage on an electric heater. A clamp-on DC ammeter is used to set
>the
>> variac for the exact specified DC current (25A).
>> A descent Variac is not that expensive and this set-up did work for
>> Surrette, at one time. Interested to hear what is better and easier!
>>
>> Dave Angelini Offgrid Solar
>> "we go where powerlines don't"
>> http://members.sti.net/offgridsolar/
>> e-mail  offgridso...@sti.net
>> text 209 813 0060
>>
>> > Esteemed Wrenches; My customer's saga of failing Trojan LC-16s
>continues,
>> > unfortunately. It's 8 Trojan L-16 P AC in series/parallel for a 24v
>bank
>> I
>> > think I have strong warranty claim on at least one battery.
>Trojan's
>> > warranty claim form requires a series of tests, including using a
>load
>> > tester "approved" by Trojan (whatever that means). to put a load of
>25
>> > amps
>> > on each battery and time down to 1.75 volts per cell, specific
>gravity
>> > checks, etc.
>> >
>> > This situation is worth purchasing a load tester I think. I'd like
>one
>> > that
>> > can do 2v, 6v and 12v batteries. Searching online, 6/12v seems
>common,
>> not
>> > seeing anything that can do 2v other than the Fluke BT series,
>which is
>> > way
>> > out of my off-grid price range. And I'm not seeing an automotive
>variety
>> > where you can set the load amperage.
>> >
>> > Anyone have product advice for something that they use and like?
>Any help
>> > appreciated.
>> >
>> > DAN
>> >
>> > PS---backgrounder and images...
>> >
>> > Numbering the batteries 1-2-3-4 left to right:
>> >
>> > ~Battery #2 was installed as a replacement only one month ago (July
>2017)
>> > and has a late 2016 date code. The 2 hot cells have such low
>Specific
>> > Gravity that they don't register on the hydrometer or
>refractometer.
>> >
>> > ~Battery #3 was installed as a replacement in mid 2016. I found the
>cause
>> > of the problem that killed the original battery (the entire bank
>was
>> > installed 2014), an incredibly poorly crimped interconnect cable
>from
>> > AltEdirect (I posted here about it then). They offered to replace
>the
>> > cable
>> > (thanks, folks) but it's of more value to me in teaching my
>hands-on
>> solar
>> > college classes.
>> >
>> > ~Battery #3 has a 2013 date code, implying to me that it sat on the
>self
>> > for almost 3 years before the distributor dumped it on me as a
>one-off.
>> > Next time, I will demand the same date code on each battery.
>> >
>> > ~Battery #1 has NO date code. First time I've seen that.
>> >
>> > ~In any case -- all the problems seem to be on only the outer
>parallel
>> > string. So the customer approved a complete re-cable, and I'm going
>to
>> > build them all myself after the expensive AltE cable fail.
>> >
>> >
>> > Dan Fink
>> > Professor of Solar Energy Technology, Ecotech Institute
>> > IREC Certified Instructorâ„¢ for:
>> > ~ PV Installation Professional
>> > ~ Small Wind Installer
>> > Executive Director, Buckville Energy
>> > NABCEP Registered Continuing Education Providersâ„¢
>> > 970.672.4342
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>>
>>
>> Dave Angelini Offgrid Solar
>> "we go where powerlines don't"
>> http://members.sti.net/offgridsolar/
>> e-mail  offgridso...@sti.net
>> text 209 813 0060
>>
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