Jay, I’ve been using the Sunseeker app in conjunction with the Solar Pathfinder. The former is useful for when the Pathfinder isn’t handy.
rick brown SolShine Energy Alternatives, LLC Electrical & Solar Contracting Services www.SolShineEnergyAlternatives.com Check, Virginia 24072 540.808.9502 VA Class A Contractor Lic# 2705147660 VA Master Electrician Lic# 2710062762 VA Alternative Energy Systems Installer NABCEP Certified PV Installation Professional 110112-21 > On Sep 3, 2018, at 3:29 PM, Ray <[email protected]> wrote: > > HI Ken; > > Don't tell me, but you probably still have a copy of The Passive Solar Energy > Book on your shelves, with those nice old solar siting charts? > Those of us lucky enough to have been in the business for decades have been > confronted with Ken's little considered fact: Trees grow. I went back to a > site I had done in '99, and was amazed I was so stupid to put the array in > the shade of a 30 ft tree. That must have been before I got my Solar > Pathfinder, I thought......Then I started looking at the tree and my old pics > of the site, and realized that tree was only about 5 ft tall, when I did the > system. As Homer Simpson says: " Douhh! " > > On the flip side, beetle kill in the Southwest has had the opposite effect; > arrays that were on tall poles to get above the tree shading are now rather > ridiculous looking sitting out by themselves in the now large clearing. > > While I certainly didn't go into solar to cut down trees, sometimes it needs > to happen along with clearing trees close to the house for fire danger. I do > my best to get folks to move the array to save the big beauties. (yea, I'm a > tree hugger at heart) Higher voltage arrays courtesy of MPPT controllers > help in that regard, too. > Ray Walters > Remote Solar > 303 505-8760 >> On 9/3/18 12:26 PM, Ken Schaal wrote: >> I started siting SHW systems in 1976. >> Studied sun angle chart persistently, until i had a good sense of how the >> sun moves for our area in central Virginia. >> We also have lots of trees...fast growing, tall trees ! >> So while precision shading analysis is a valuable tool, the info is static. >> Our sites are rarely static ! >> The biggest issue here is getting clients to manage their trees. >> I learned this even before I started installing SHW, when I first built a >> sunroom on the south side of my house in 1974. >> Many trees have grown, and then become firewood, since then. >> When the pv system was installed, in 2008, several more trees on the east >> and west were removed.Fortunately there were now taller trees to the NE and >> NW to shade house in summer. Exterior movable shading, sunscreen, on south >> windows, combined with interior insulating shades, allowing the collectors >> and pv panels to be in full sun, while the house is protected from unwanted >> spring, summer, fall solar gain. >> Being a full service solar contractor requires a long term perspective in >> our climate. And most importantly, clients willing and able to manage their >> trees ! >> It has been my observation that folks that love solar, hate to cut trees, >> even tho trees, in our climate, grow faster now due to climate change. >> >> Ken Schaal >> CommonWealthSolar.com >> >> >> >> >> >>> On Mon, Sep 3, 2018, 12:45 PM Dan Fink <[email protected]> wrote: >>> I use Solar Shading from Comoving Magnetics on Android. I had my class test >>> it versus the Solar Pathfinder and Solmetric Suneye, and our shading >>> readings were within 6-8%. >>> >>> The Solmetric Sunviewer app is also handy. I have never tried their iPV app >>> because of the price, and because Solar Shades is working fine for me. >>> >>> Dan Fink >>> Professor of Solar Energy Technology, Ecotech Institute >>> IREC Certified Instructor™ for: >>> ~ PV Installation Professional >>> ~ Small Wind Installer >>> Executive Director, Buckville Energy >>> NABCEP Registered Continuing Education Providers™ >>> NABCEP PV Associate >>> >>> 970.672.4342 >>> >>> >>> >>> >>>> On Mon, Sep 3, 2018 at 10:28 AM Jerry Shafer <[email protected]> >>>> wrote: >>>> I still use the sun eye and solmetric, noting works as well as being on >>>> site, solmetric had an app way back when that was on a subcription bases >>>> Jerry >>>> >>>>> On Mon, Sep 3, 2018, 9:22 AM Jay <[email protected]> wrote: >>>>> Hi all, >>>>> >>>>> I’m wondering about which apps people are using for determining shading >>>>> and sun position. >>>>> >>>>> Thx >>>>> Jay >>>>> >>>>> Peltz Power. >>>>> >>>>> >>>>> _______________________________________________ >>>>> List sponsored by Redwood Alliance >>>>> >>>>> List Address: [email protected] >>>>> >>>>> Change listserver email address & settings: >>>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>>> >>>>> List-Archive: >>>>> http://www.mail-archive.com/[email protected]/maillist.html >>>>> >>>>> List rules & etiquette: >>>>> www.re-wrenches.org/etiquette.htm >>>>> >>>>> Check out or update participant bios: >>>>> www.members.re-wrenches.org >>>>> >>>> >>>> >>>> On Sep 3, 2018 9:22 AM, "Jay" <[email protected]> wrote: >>>> Hi all, >>>> >>>> I’m wondering about which apps people are using for determining shading >>>> and sun position. >>>> >>>> Thx >>>> Jay >>>> >>>> Peltz Power. >>>> >>>> >>>> _______________________________________________ >>>> List sponsored by Redwood Alliance >>>> >>>> List Address: [email protected] >>>> >>>> Change listserver email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> List-Archive: >>>> http://www.mail-archive.com/[email protected]/maillist.html >>>> >>>> List rules & etiquette: >>>> www.re-wrenches.org/etiquette.htm >>>> >>>> Check out or update participant bios: >>>> www.members.re-wrenches.org >>>> >>>> >>>> _______________________________________________ >>>> List sponsored by Redwood Alliance >>>> >>>> List Address: [email protected] >>>> >>>> Change listserver email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> List-Archive: >>>> http://www.mail-archive.com/[email protected]/maillist.html >>>> >>>> List rules & etiquette: >>>> www.re-wrenches.org/etiquette.htm >>>> >>>> Check out or update participant bios: >>>> www.members.re-wrenches.org >>>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> List Address: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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