<div dir="ltr">I would use a 6,600V single phase outdoor pad mounted transformer pair and deep bury a single #2 direct burial cable. Easy and quick. </div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jan 10, 2022 at 7:34 AM Foxfire Energy <<a href="mailto:dan@foxfire-energy.com">dan@foxfire-energy.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<span style="text-align:left"><span><span>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)</span></span></span></div>
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<span style="text-align:left"><span><span>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</span></span></span></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><font color="#666666">Chris Mason</font></div><div dir="ltr"><div><span style="font-size:13px"><font color="#666666">Solar systems designer</font></span></div><div><span style="font-size:13px"><font color="#666666">Generac Generators Industrial technician</font></span></div><div><font color="#666666"><br></font></div><div><font color="#666666">Comet Systems Ltd DBA Comet Solar<br>Anguilla Cell 264.235.5670</font></div><div>WhatsApp <span style="color:rgb(102,102,102)">264.235.5670</span></div><div><font color="#666666">Skype: netconcepts</font></div><div><font color="#666666"><a href="http://www.cometenergysystems.com/" target="_blank">www.cometsolar.com</a></font></div></div></div></div>