tilt/orientation for TOU [RE-wrenches]
Ron Schroeder
ron at 112motors.com
Tue Jun 17 08:26:49 PDT 2003
Hi Nick,
I would twist the mount west to the position of the sun at about 2PM
(closer to noon rather than 1/2 way between noon and 6PM) and tilt back
to about your latitude +/-10 degrees.
Are you on net metering or are you peak leveling?
Ron Schroeder
EES
Long Island NY
Nick Nicholas, APS wrote:
>
> Hello Wrenches:
> What is the best tilt angle and orientation for TOU metering in northern
> CA if the goal is to offset as much of the utility bill on an annual
> average? Has anyone looked closely at this. We are trying to maximize
> the
> output so that it produces the most from 12-6 pm, May - Sept, without
> negating the winter and morning output. My guess is that a 17- 20
> degree
> tilt angle, with the orientation 17 degrees west of true south (same as
> compass south) would work great for Time of Use Metering. ($.315
> on-peak,
> $.085 off-peak.)
>
>
> Nick Nicholas
> Chief of Engineering
> Alternative Power Systems, Inc.
> 135 Colfax Ave. Grass Valley CA 959545
> 530-274-0588 530-274-0589 530-913-5605
> aps at sbcglobal.net alternativepowersystems.com
>
>
>
> Add this card to your address book
>
> Alternative Power Systems
> www.alternativepowersystems.com
> aps at sbcglobal.net
> 135 Colfax Ave.
> Grass Valley, CA 95945
> (530) 274-0588 phone
> (530) 274-0589 fax
> ----- Original Message -----
> From: "max Balchowsky" <max at seesolar.com>
> To: <RE-wrenches at topica.com>
> Sent: Wednesday, June 04, 2003 10:13 PM
> Subject: Re: GC-1000 warranty [RE-wrenches]
>
>
> > The only problem with the GC 1000 dilema could be the availability of
> parts
> > and scematics. I've only an AA in electronics, but if I Have those two
> > items, the trouble shooting and repair is only a matter of my time on
> > the
> > test bench. I've still got two new, and working 1000'S in stock........
> >
> > Max Balchowsky
> >
> > SEE Systems
> >
> > 100 S. Sunrise Wy #285
> >
> > Palm Springs, Ca. 92262
> >
> > Phone - 760-403-6810
> >
> > Fax - 760-406-4230
> >
> >
> >
> > "Building a Lasting Future For the Next Generation"
> >
> >
> > ----- Original Message -----
> > From: "Mark Robinson" <Mark at TheEnergyGrid.com>
> > To: <RE-wrenches at topica.com>
> > Sent: Wednesday, June 04, 2003 8:17 AM
> > Subject: GC-1000 warranty [RE-wrenches]
> >
> >
> > > Regarding service on the GC-1000 (and MM)
> > > Bankruptcy court won't help... that's over. Beacon Power, who
> > > acquired the AEI intellectual property has no legal obligations here. As
> > far
> > > as I can see, there are no warranties after bankruptcy and the customer
> is
> > > the only source of funding repairs.
> > > This is a problem as there are over 2500 GC-1000's installed... And
> > > further problems if any other inverter companies go out of business. The
> > > state's mandate around warranties doesn't seem to have a way to handle
> > this.
> > > Should we require that manufacturers post some kind of bond?
> > > I think Tony Brasil was working on this at a state level.
> > >
> > > Regards,
> > > Mark Robinson
> > > Formerly Director of Customer Service for Advanced Energy
> > > News as of 6/1/03: Nextek Power Systems, Inc.
> > >
> > >
> > > -----Original Message-----
> > > From: matthew tritt [mailto:solarone at charter.net]
> > > Sent: Sunday, June 01, 2003 1:44 PM
> > > To: RE-wrenches at topica.com
> > > Subject: Re: Selling Used GC-1000's [RE-wrenches]
> > >
> > >
> > > Hi Mark,
> > >
> > > The "Lemon Law" comment is really a good one. Has anyone else considered
> > the
> > > dilemma that many of us may be facing one of these days (especially
> people
> > > down in the Los Angeles area) concerning the absence of the factory that
> > > issued all those 5 year warranties? Should the State assume the role of
> > > warrantor, (not likely), the installer, (even less likely), or the party
> > who
> > > acquired the remains of Advanced Energy?
> > >
> > > Maybe a warranty repair facility could be financed through the
> bankruptcy
> > > court?
> > >
> > > Matt
> > > --- Original Message -----
> > > From: "Mark Robinson" <Mark at TheEnergyGrid.com>
> > > To: <RE-wrenches at topica.com>
> > > Sent: Sunday, June 01, 2003 9:57 AM
> > > Subject: Selling Used GC-1000's [RE-wrenches]
> > >
> > >
> > > > Is there a "lemon Law" still in effect?
> > > > Actually, I'm hoping to soon announce a GC-1000 repair facility. Stay
> > > tuned.
> > > > The GC would still be a viable piece of equipment if there were
> > > > service available for it. Regards,
> > > > Mark Robinson
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: matthew tritt [mailto:solarone at charter.net]
> > > > Sent: Thursday, May 29, 2003 9:09 PM
> > > > To: RE-wrenches at topica.com
> > > > Subject: Re: cost per kWh [RE-wrenches]
> > > >
> > > >
> > > > Hey there all you wrenches,
> > > >
> > > > Has anyone tried selling used GC 1000s? If so, what would be a target
> > > price
> > > > (all things considered).
> > > >
> > > > Matt T
> > > > ----- Original Message -----
> > > > From: "Eric Smiley" <Eric_Smiley at bcit.ca>
> > > > To: <RE-wrenches at topica.com>
> > > > Sent: Thursday, May 29, 2003 11:52 AM
> > > > Subject: RE: cost per kWh [RE-wrenches]
> > > >
> > > >
> > > > >
> > > > > I think it makes more sense on a battery based system without MPPT
> > > > > to use peak sun hours and array mpp amps (Imp). Amps are pretty much
> > > > > proportional to sun light intensity and the modules are going to
> > > > > produce Imp or greater at battery charging voltage and elevated
> > > > > temperatures. For simplicity, I keep all my calculations on battery
> > > > > based systems in terms of amps and amp hours. Working in watts means
> > > > > using two different "typical" battery voltages -- one for charging
> > > > > and one for discharging
> > > > > -- which is necessarily vague.
> > > > >
> > > > > If you have the time, you can copy and paste hidden cells in
> > > > > RetScreen onto a blank worksheet and decipher what is going on in
> > > > > the background. Another engineer told me about this and discovered
> > > > > that RetScreen actually calculates monthly energy values but keeps
> > > > > them hidden and only displays a yearly summary.
> > > > >
> > > > > Eric Smiley
> > > > > Project Leader
> > > > > Photovoltaic Energy Applied Research, Technology Centre British
> > > > > Columbia Institute of Technology Burnaby Campus
> > > > >
> > > > > NE25 - 3700 Willingdon Avenue
> > > > > Burnaby, British Columbia
> > > > > Canada V5G 3H2
> > > > >
> > > > > phone: 604.432.8657 fax: 604.436.0286
> > > > > esmiley at bcit.ca www.tc.bcit.ca
> > > > >
> > > > > The information contained in this E-mail is intended for the
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> > > > > it.
> > > > >
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> > >
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> >
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> >
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> >
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> >
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> >
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>
>
> ----------------------------------------------------------------------------
>
> ----
>
>
Ron
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