This is what we use, cheap and simple https://www.ebay.com/itm/185043797837?hash=item2b1578474d:g:TBAAAOSwmKNhO77W
On Mon, Jan 10, 2022 at 3:49 PM Tump <t...@swnl.net> wrote: > Hey this is exactly everything I was going to say. Ahh the new owner, the > dentist he’s a real piece of work. You got your spring vacation, on him, > you got paid and now you want to go back? Hummm lets see installation for a > MR. know it all, 500+ miles from home and you’re now going to use a > transformer AND all wire on an island in salt water. Wow must be some good > smoke. Dan YOU KNOW BETTER! > > On Jan 10, 2022, at 8:37 AM, Pieter Huebner <pie...@offgridenterprises.org> > wrote: > > It sounds like you are working on an Island near Jones port Maine ( Norton > Island). The site had or has a Bergey 7.5kw XL-R wind turbine, on a tilt > tower which is almost impossible to tilt, a solar array on a stacked log > tower, Kubota generator, flooded cell lead acid batteries and Outback > Inverters. Your assessment of the system is 100% correct, bad workmanship, > and little or no maintenance. The original design was poorly thought out as > well. The poor workmanship was not limited to the energy system, the > electrical infrastructure had issues as well. The original installer was in > way over his head. I have been to that site at the bequest of the original > owner to repair the wind turbine years ago. > My suggestion is that you evaluate the existing equipment > and infrastructure, and salvage what you can then start with a fresh sheet > of paper. The electrical loads need to be mapped, for example the original > owner had a hot tub at the main house. > The site would lend itself well to a micro grid system. if you like we can > have long discussions about this site and I will be happy to share what I > know about it as well as share my experiences with AC and DC distribution > for off grid sites. > Pieter > > <image001.png> > > *From:* RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> *On > Behalf Of *Foxfire Energy > *Sent:* Monday, January 10, 2022 5:35 AM > *To:* re-wrenches@lists.re-wrenches.org > *Subject:* [RE-wrenches] Transmitting 15kW 3600ft Off Grid. > > Hi Guys, Got a good one for you.. We were tasked to refurbish a Stand > Alone (aka Off Grid) power system on a 100 acre private resort island off > the New England coast a few years back.. The system has a 12kW(AC)/ 48VDC > power center (@120/240VAC) with a 10kW Bergey wind turbine, 3kW of Solar > and a 12kW Diesel Generator.. It currently powers two main lodges and 10 > private cabins.. The system was never installed properly and had > significant damage when we got there (no system ground, evidence of several > lightening strikes, open/corroded connections, and poor workmanship in > general) > The new owners want to build a third lodge at the other end of the > island.. Some 3600ft away, and want to feed full power from the existing > system to the new lodge.. Thing is, the new owner is pretty brainy (keeps > me on my toes).. My first thought was to bump the 120/240VAC up to 480VAC > and send it on like 4/0AL and back down to 120/240VAC at the new lodge > (we've done it before).. The new owner wants to launder the AC to DC and > back for transmission.. Says DC for transmission is the new Cats Pajamas > because of the efficiency.. News to me.. Anyone have experience with DC for > transmission? Again.. I'm shooting for 15kW (including 25% for continuous > duty), 3600ft, 600V wire (but could go with a different wire) and a line > loss under 5%. TIA db > > _______________________________________________ > 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 > > > *tump3...@gmail.com <3...@gmail.com>* *www.SWNL.net* > Solarwinds Northernlights > * Serving Mid Coast Maine & Northern California* > * 207-832-7574 Cl. > 610-517-8401 * > *Blair "TUMP" May* > > > * ******** MAINE'S CHARTER ******** * * > NABCEP "Certified PV Installer"* > > > * ******** MAINE'S CHARTER ******** ** > Trace Xantrex "Certified" Dealer / Installer"* > > > > > _______________________________________________ > 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 > > -- Chris Mason Solar systems designer Generac Generators Industrial technician Comet Systems Ltd DBA Comet Solar Anguilla Cell 264.235.5670 WhatsApp 264.235.5670 Skype: netconcepts www.cometsolar.com <http://www.cometenergysystems.com/>
_______________________________________________ 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
