Glenn, I've installed an 80+kW and a couple 10+kW systems using this Nuance system. They are assembled fairly quickly and the legs are adjustable for uneven ground, which is nice. The ease of driving the cable anchors into the ground will, of course, depend on the site. Luckily, i had no issue with rocks and the only real issue i had driving the anchors was the driving rod separating once or twice (due to the length of anchors for our location, we needed a 2-piece driving rod). Testing the (pull-out strength) anchors is a bit cumbersome and we have not come up with a way of re-testing the front ones once the mods are installed. Make sure you use a scale that has a "max pull" feature to hold the max pull-out strength otherwise the numbers are constantly moving and difficult to read. Hopefully they have added leg braces to the front legs where they are needed more so than just on the back legs. If they haven't, then i suggest requesting them as the front legs *will* buckle under high wind from the north.
I'm not convinced that they are a solid ground mount solution as the cable-anchor system does allow for some movement so they will allow for the full array/rack to shift and move, as i have seen on the 80kW system. <http://www.skyfireenergy.com> Benn Kilburn CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc Employee Owner 14515 - 121A Ave NW | Edmonton, AB | T5L 2T2 Direct: 780-784-1706 | Office: 780-474-8992 *www.skyfireenergy.com <http://www.skyfireenergy.com/>* <https://twitter.com/SkyFireEnergy> <https://www.facebook.com/SkyFireEnergy> <https://www.linkedin.com/company/283735?trk=tyah&trkInfo=tarId%3A1408655033432%2Ctas%3Askyfire%2Cidx%3A2-2-5> On Mon, Sep 9, 2019 at 1:31 PM Jerry Shafer <jerrysgarag...@gmail.com> wrote: > Wrenches/Glen > I know nuance, they must be trailered or crained into position, leveled on > site and cables are driven in and pre-loaded and cable locks installed. I > have there products around California along with the predecessor. Delivery > can be an issue and there team does the cables so that's something to > consider too. They are fast to install, pre-layout the conduit and drop and > very quickly you are up and running. We have also done there blasted > version with concrete blocks or even just 36" pin anchors > Jerry > > On Mon, Sep 9, 2019, 12:09 PM Glenn Burt <glenn.b...@glbcc.com> wrote: > >> Hello Wrenches, >> >> >> >> We are looking at alternatives to pile driving and helical piles and >> concrete piers for small residential ground mount systems. >> >> I have just found Nuance Energy who makes a system that is basically set >> on the grade, and with cables and pivoting duckbill earth anchors and >> attached cables to secure it. >> >> Does anyone have any experience with this system specifically? >> >> >> >> Thanks in advance! >> >> >> >> Best regards, >> >> >> >> Glenn Burt >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/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: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/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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