[Cialug] tornado-proofing your data?

Wed May 28 10:03:02 CDT 2008

They generally start at around a $1000.00 and they are heavy.  You'll
need a 3/4 ton truck to haul it and some type of hoist to get it off the
truck/trailer.

On Wed, 2008-05-28 at 09:52 -0500, Nathan C. Smith wrote:
> Wish I'd known that about the forklift batteries a month ago.  I just got a new optima blue for our panel.
> 
> -Nate
> 
> > -----Original Message-----
> > From: cialug-bounces at cialug.org
> > [mailto:cialug-bounces at cialug.org] On Behalf Of Dave J. Hala Jr.
> > Sent: Wednesday, May 28, 2008 8:46 AM
> > To: Central Iowa Linux Users Group
> > Subject: RE: [Cialug] tornado-proofing your data?
> >
> >
> > You forget...I'm a bohemie with a welder. I'm fairly
> > confident that I would not build a structure to hold all
> > those pv panels.  I'd probably build a frame using a 14ga 1in
> > box steel and 18ga sheet stock. I'd put it 6-8 inches off the
> > ground (so the bunnies could have a home) and then I'd put up
> > a 50in tall cattle panel fence around it to keep the dogs off
> > of it.  I realize that dogs and bunnies don't mix, but if you
> > have an ample supply of de-wormer and bunnies, you have happy dogs.
> >
> > I've just finished the mockup of a prototype 2kw (in 25 mph
> > wind) horizontal axis wind generator that sits on the ground.
> > Photos will be available as soon as its painted and spinning
> > in the back yard.
> >
> > I'd use an Outback systems inverter to combine the two
> > seperate power sources and charge the battery. I wouldn't use
> > the optima batteries.
> > They cost too much and only have a 3-5 year life. I'd
> > purchase a 24 volt forklift battery that has been recently
> > taken out of service. There have been numerous reports of
> > re-purposed forklift batteries being used with wind turbines
> > and being in service in excess of 15 years.
> >
> > :) Dave
> >
> > On Wed, 2008-05-28 at 08:21 -0500, murraymckee at wellsfargo.com wrote:
> > > That's assuming that you built a structure strong enough to
> > hold the
> > > panels against the wind during the storm.  And even if the frame
> > > holding the panels survived you'd have to contend with the panels
> > > being blown out of the frame.
> > >
> > > Murray McKee
> > > Operating Systems Engineer
> > > WFFIS - Wells Fargo Financial Information Systems 800 Walnut Street
> > > MAC F4030-037 Des Moines, IA 50309-3605 WORK (515)557-6127
> > Cell (515)
> > > 890-9660  FAX (515) 557-6046 MurrayMcKee at WellsFargo.com
> > "This message
> > > may contain confidential and / or privileged information.
> > > If you are not the addressee or authorized to receive this for the
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> > action based
> > > on this message or any information herein.  If you have
> > received this
> > > message in error, please advise the sender immediately by
> > reply e-mail
> > > and delete this message.  Thank you for your cooperation."
> > >
> > > -----Original Message-----
> > > From: cialug-bounces at cialug.org
> > [mailto:cialug-bounces at cialug.org] On
> > > Behalf Of Dan Hockey
> > > Sent: Tuesday, May 27, 2008 11:11 PM
> > > To: 'Central Iowa Linux Users Group'
> > > Subject: RE: [Cialug] tornado-proofing your data?
> > >
> > > * Backup onto a remote server located in the underground
> > fruit cellar
> > > in the back yard.
> > > *Use a combination of a solar/wind power the power it.
> > > *Since you only need about 500 watts, you could do this for a
> > > reasonable cost.
> > >
> > > Have you priced solar panels and batteries lately?
> > >
> > > 500 watts x one hour = 500w/hr or 0.500Kw/hr 0.5Kw/hr x 24hrs =
> > > 12Kw/hr <- and that's just for one day.
> > >
> > > Now for the battery pack..
> > > Using the Optima blue top (55ahr) for this example.
> > >
> > > (55ahr x 12v) / 1000
> > >          660  / 1000
> > >          =0.66Kw/hr just for one battery.
> > >
> > > 55ahr x 20 = 1100ahr
> > >
> > > (1100ahr x 12v / 1000 = 13.2Kw/hr
> > >
> > > 1 battery = $169.95 x 20 = $3399.00
> > >
> > > Keep in mind your solar array is going to be 2x to 3x
> > larger in order
> > > to charge the battery bank with the ~4hr of useable
> > sunlight(for ia)
> > > for fixed solar panels.
> > > As you can see this is starting to get expensive to keep your data
> > > safe, that doesn't include the inverter and charge controller. You
> > > will be the only one in town with the highest uptime after
> > the tornado
> > > blows through.
> > > -dh
> > >
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> > --
> > ___
> > Dave J. Hala Jr.
> > President OSIS, Inc.
> > www.osis.us
> >
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-- 
___
Dave J. Hala Jr.
President OSIS, Inc.
www.osis.us