Grid-Tie Inverters with Batteries [RE-wrenches]

Fri Sep 10 06:13:41 PDT 2004

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The only item in our home / office that does not always ride through a
power transfer are the computer network switches. These "sometimes" do
not make it without a glitch, sending my network into state of confusion
requiring reboots.

Everything else makes it through. This includes three different
desktops. Of course the laptops that we primarily use everywhere have no
issue, and use a LOT less power continuously.

I had many issues where the older Trace units would not start or run
Macintosh computers. Enough incidents (primarily legacy systems from
others) that our policy is "you have a Mac, you get sine wave", even for
the smallest systems.

Jeff Wolfe
Global Resource Options

-----Original Message-----
From: Joel Davidson [mailto:joeldavidson at earthlink.net] 
Sent: Thursday, September 09, 2004 11:17 AM
To: RE-wrenches at topica.com
Subject: Re: Grid-Tie Inverters with Batteries [RE-wrenches]

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Hello Todd,

Interesting. I've been intentionally switching off grid power on several
pre-GTI SW4048s with different types of PCs and have never had a
computer re-boot from power loss. We have some engineer customers with
GTI SW4048 inverters on the home PV systems who have never had their
computers drop off. Your report is the first..

Are other Wrenches experiencing load drop-offs when their SWs in sell
mode lose grid power?

Best regards,
Joel Davidson

----- Original Message -----
From: "Todd Cory" <toddcory at finestplanet.com>
To: <joeldavidson at earthlink.net>
Sent: Thursday, September 09, 2004 6:38 AM
Subject: Re: Grid-Tie Inverters with Batteries [RE-wrenches]

> SW4024 in sell, all the computers we have ever had including an AST
and 3
dells.
>
> Todd
>
>
> Joel Davidson wrote:
>
> >
> >
> > Your free subscription is supported by today's sponsor:
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> > The fastest - Easiest way to lose weight! Try it now FREE!
> > http://click.topica.com/caacBBBbz8QcsbAfWTra/MyDietPatches
> > -------------------------------------------------------------------
> >
> > Hello Todd,
> > What model SW?
> > What SW inverter operation mode?
> > What model computer?
> > Best regards,
> > Joel Davidson
> > ----- Original Message -----
> > From: "Todd Cory, Mt. Shasta Energy Services"
<toddcory at finestplanet.com>
> > To: <RE-wrenches at topica.com>
> > Sent: Wednesday, September 08, 2004 6:00 AM
> > Subject: Re: Grid-Tie Inverters with Batteries [RE-wrenches]
> >
> > Your free subscription is supported by today's sponsor:
> > -------------------------------------------------------------------
> > Sponsor a child today through Children International.
> > Give a desperately poor child hope for a brighter future.
> > For only $18 a month you can make a difference!
> > http://click.topica.com/caacBBFbz8Qcsbc0WJAa/ChildrenInternational
> > -------------------------------------------------------------------
> >
> > I would NOT consider ANY SW product to be a UPS. The transfer time
is
way
> > too
> > slow to be considered for this use. My home system was set up using
this
> > gear
> > (until 3 months ago) and my computer always rebooted because of the
slow
> > switch
> > over. I am sure the term "UPS" has some parameters regarding speed
of
> > switching,
> > and I am also sure there is no way the 10+ old SW technology would
not
meet
> > those criteria.
> >
> > Todd
> >
> > Joel Davidson wrote:
> >
> > > Hello Robert,
> > >
> > > Solar Integrated Technologies (SIT) has its computers' server on
an
SW4048
> > > inverter PV UPS. There was a power outage and the computer server
worked
> > > fine. However, the phone system was not on the PV UPS and had to
be
> > > re-booted. Now the phone system is on the PV UPS too.
> > >
> > > The Davis, California Food Co-op put a SIT 30 kW batteryless solar
roof on
> > > their building. The existing 5 kW rack-mounted array powering the
SW4048
> > PV
> > > UPS is still in place.
> > >
> > > Battery versus batteryless is not an either/or proposition. A lot
of
> > > businesses are going solar with batteryless PV systems. It makes
sense
to
> > > have a PV UPS too.
> > >
> > > Do any other PV businesses have both battery and batteryless PV
for
> > > operations in addition to show-and-tell?
> > >
> > > Best regards,
> > > Joel Davidson
> >
> > Your free subscription is supported by today's sponsor:
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> --
> Todd Cory
> KE6SXS
> toddcory at finestplanet.com
> Mt. Shasta Energy Services
> License C-10 # 811428
> P.O. Box 689
> Mt. Shasta, CA. 96067
> (530) 926-1079
> ~~~~~~~~
>
> It's now clear Mr. Bush intends to run a campaign based on fear. And
for
me, at
> least, it's working: thinking about what these people will do if they
solidify
> their grip on power makes me very, very afraid.
>
>
> If you're not outraged, you're not paying attention.
>
>

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