Wrenches,
More on the monitoring of GTWB systems, using a TriMetric, from
Ralph Heisey, the developer of the TriMetric. Please include Ralph
(bog...@bogartengineering.com) in any further discussion.
Allan
Hi Allan
For grid tie systems that are only quite oc
From: Allan Sindelar
To: JRQ
Sent: Sunday, August 12, 2012 4:00 PM
Subject: Re: [RE-wrenches] GTWB outage monitor question
Jeff,
Great in theory...but I'm missing a few details as to how to put
it into practice.
Can you tell me where I might find a relay with a 175A co
uming that your batteries aren't also remote from the
home.
Jeffrey Quackenbush
From: Allan Sindelar
To: RE-wrenches
Sent: Thursday, August 9, 2012 11:18 AM
Subject: [RE-wrenches] GTWB outage monitor question
Wrenches,
For a grid-tied-with-backup system
actually this is not the problem i have with amp hour meters on grid tie with
battery systems.
a floated battery does not need an occasional bulk charge. it is being float
charged which compensates for any internal self discharge. the only thing
needed is an occasional eq to stir the electrol
Happy Friday, all~
Allan & Todd were discussing the issue where a "reset type" amp hour
battery monitor (such as TriMetric) never gets to "reset to full" when
operating on a GTWBB "grid tie with battery backup" system...because the
battery stays in float and the monitor never sees a bulk charge vo
i have always used the good old e-meter/link 10. i manually program the charge
efficiency at 99% (why won't the manufactures allow a 100% setting?). the
problem is that 1% error... since the meter treats charge different than
discharge.
the old e-meters seemed to handle this fine... but the
It sounds like a perfect application for an Arduino. http://www.arduino.cc/
It's an open source microcontroller with easy programming and lots of
interface options. For abnout $100 you could hire a programmer to configure
it to do what you need.
You don't say what the inverter is, but if it has
APRS World can provide you with a simple (on your end) turnkey solution,
including internet alerts, long distance wifi links, etc.
On the APRS monitors we have deployed, we still have lots of extra A/D
inputs we are not even using. The possibilities are mind boggling.
Full disclosure: They are one
Yeah, I realize you can use a computer. I was hoping for a more
commercialized standalone device to send email or SMS with just an Ethernet
or wireless connection. You said "for little money." I misinterpreted that
as "simple."
Jason Szumlanski
Fafco Solar
On Thu, Aug 9, 2012 at 3:05 PM, Dan Fi
Jason;
The relay and an indicator light or buzzer is easy -- Grainger or Radio
Shack parts.
There are multitudes of monitors for anything -- voltage, current,
temperature, water level, switch state, specific gravity (!) that have
live serial port output possibly in addition to memory card loggin
Can you elaborate on this? It sounds like something I could use in other
situations... What equipment is required?
Jason Szumlanski
Fafco Solar
On Thu, Aug 9, 2012 at 2:25 PM, Dan Fink wrote:
> I agree, Chris. For very little money you could even monitor the relay to
> have it email, phone or
I agree, Chris. For very little money you could even monitor the relay to
have it email, phone or SMS them when the grid goes out.
--
Dan Fink,
Executive Director;
Otherpower
Buckville Energy Consulting
Buckville Publications LLC
NABCEP / IREC accredited Continuing Education Providers
970.672.434
Couldn't you power a relay from the incoming utility, so it closes on loss
of utility?
On Thu, Aug 9, 2012 at 11:18 AM, Allan Sindelar <
al...@positiveenergysolar.com> wrote:
> Wrenches,
> For a grid-tied-with-backup system that is still in the design stage, we
> have a customer request for a si
Todd,
Yes on all points. Why back up the whole house? The residence is a
remodeled traditional New Mexico adobe and the property is fully
landscaped; the original meter and service was moved out to a new
location and the home's breaker panel location was on an ext
Wrenches,
For a grid-tied-with-backup system that is still in the design
stage, we have a customer request for a signal to let them know when
an outage occurs and they are running on backup power, so that they
may turn off unnecessary loads and "go into backup consciousne
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