Hi Nic sorry I have been so busy not had time to follow posts. However years ago a program called Maui Solar attempted to do power calculations for any orientation. My program is old but they may still exist. I use RetScreen which will give an answer as to power production. I have found that for systems that look south any program will work, for off angle things, a more sophisticated program is required. \
As for sketching, Maui Solar had a sun tracker/ shadow tracker kind of thing may be all you need. The Google sketch up may be the architect ideal. Darryl --- On Tue, 8/5/08, Kelly Keilwitz, Whidbey Sun & Wind <[EMAIL PROTECTED]> wrote: > From: Kelly Keilwitz, Whidbey Sun & Wind <[EMAIL PROTECTED]> > Subject: Re: [RE-wrenches] layout software > To: "RE Wrenches listserve" <re-wrenches@lists.re-wrenches.org> > Date: Tuesday, August 5, 2008, 12:37 PM > Hi Nik, > We recently started using Google¹s 3-D program > ³Sketchup² for our layouts. > The basic program is free and fairly fast to get started > with. It allows us > to give prospective customers a simple perspective drawing > showing how it > will look. It has a shading feature that allows you to move > the sun through > the day to see what effect shading has. Definitely a good > tool for more the > less-conventional layouts like you describe. > -Kelly > > > On 8/3/08 6:13 PM, "Nicholas Ponzio" > <[EMAIL PROTECTED]> wrote: > > > Wrenches, > > > > I've got several PV prospects with east-facing > roofs. Does anyone have > > suggestions about easy calculations for inter-row > spacing? It's more > > complicated than the flat-roof or low pitch > south-facing roofs. Seems like > > there ought to be some fancy 3D modeling software for > PV designers that could > > do this in a few key strokes... > > > > Thanks in advance for any suggestions. > > > > -Nik Ponzio > > > > > > -- > > Nicholas Ponzio > > Building Energy > > 1570 South Brownell Road > > Williston, VT 05495 > > > > t: 802-859-3384 > > f: 802-658-3982 > > www.BuildingEnergyVT.com > <http://www.BuildingEnergyVT.com> > > [EMAIL PROTECTED] > > > > "Building Solutions for a Sustainable > Future" > > > > > > > > _______________________________________________ > > List sponsored by Home Power magazine > > > > RE-wrenches@lists.re-wrenches.org > > > > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > > > > List rules & etiquette: > > http://www.re-wrenches.org/etiquette.htm > > > > Check out participant bios: > > www.members.re-wrenches.org > > > > Kelly Keilwitz, P.E. > Whidbey Sun & Wind, LLC > Renewable Energy Systems > NABCEP Certified PV Installer > 987 Wanamaker Rd, > Coupeville, WA 98239 > PH & FAX 360-678-7131 > [EMAIL PROTECTED] > > > > _______________________________________________ > List sponsored by Home Power magazine > > RE-wrenches@lists.re-wrenches.org > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine RE-wrenches@lists.re-wrenches.org http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
