Sorry, I sent that last email too soon by accident…. Yes, I’ve installed a few of these Nuance Osprey racks…. With much less than satisfactory experiences.
The rack tables themselves go together fairly well, however the cable anchor system, while seemingly slick, left much to be desired in my experiences. Some anchors would not come close to the required load test pull-out values, requiring extra anchors to be needed, which is fine, until all the anchor holes have been used. The anchors don’t “securely” hold the rack down, meaning it leaves a bit of room for movement, so under high wind, and over time it can wiggle and loosen the anchors leaving more and more room for movement each time. That said, they do recommend rechecking the anchors after some time, but this can be an issue for some sites. I have gone back to check a site and a rack (with other racks on either side) had shifted forward about 25cm, seemingly due to high wind. It drove the front anchor base plates into the ground and caused some damage to the rack structure which had a design flaw that I believe was corrected. They recommend re checking the pull-out load testing of the anchors after a year or so but I have yet to be given a solution for rechecking the front anchors without removing modules, which are in the way of doing the pull out test. It’s been over a year and a half since the last one I worked on so it’s not so fresh in my mind but I do know there were several other issues with the rack/rail assembly and mounting modules, issues with the mod mud/end clamps. I’m not completely against giving it another try, but not without reviewing the notes and photos from the last ones and confirming the issues have been addressed. Regards, Benn On Mon, Jan 3, 2022 at 8:22 AM Benn Kilburn <b...@skyfireenergy.com> wrote: > I’ve installed a few of these Nuance Osprey racks..~85kw, ~50kw > > > > On Thu, Dec 30, 2021 at 2:31 PM Jeff Clearwater < > je...@villagepowerdesign.com> wrote: > >> Wow cool product Nick! Anyone have actual experience? >> >> I've been thinking that the concrete beam systems (above grade >> pre-engineered rectangular blocks like solarmounts.com) really could be >> used for any ground mount rack system (Unirac, IronRidge, SnapNRack, >> SolarMounts, ReadyRack, etc.) in other words many ground mount systems >> could be bolted to an above grade concrete beam - would just need a sign >> off on uplift by an engineer at the worst or just apply existing >> engineering models. Many manufacturers already off that option and >> probably provide the engineering. >> >> This might expand small system options for those manufacturers only >> offering ballast systems to large system buyers. >> >> Which makes me think that If I tried a Nuance system and the soil didn't >> work out for the cable pull you could then just bolt them down to a >> concrete beam system as a plan b. >> >> Thoughts? Experience anyone? >> >> best, >> >> jc >> >> >> >> Nick A Lucchese <luccheseso...@me.com> >> December 30, 2021 at 11:38 AM >> >> Greetings Mac, >> >> I recently have been investigating the use of Nuance’s Osprey >> <https://nuanceenergy.com/> product solution. Doesn’t necessarily fall >> under the ballasted category and since you’re trying to avoid the heat pump >> lines it may not fit your strategy either but I really like the option of >> getting away from pouring concrete. The anchors are set 40-65” deep. For >> smaller projects it seems like the cost may be somewhat prohibitive due to >> shipping logistics but appears like they price out affordably once you >> purchase a bit of specialized equipment and get around the freight costs. >> >> That ReadyRack geo-ballast looks quite cool too Jeff, thanks for the link >> on that. >> >> Best of luck, Nick >> >> >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> 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 >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> Mac Lewis <maclew...@gmail.com> >> December 28, 2021 at 3:31 PM >> Hello Wrenches, >> >> Can anyone recommend a ballasted ground mount solution that is offered on >> a residential scale? Below 10kW typically. >> >> Thanks in advance! >> >> -- >> >> >> >> Mac Lewis >> >> *"Yo solo sé que no sé nada." -Sócrates* >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> 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 >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> 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 >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> -- > Benn Kilburn > SkyFire Energy > 780-906-7807 > -- Benn Kilburn SkyFire Energy 780-906-7807
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org 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 There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
