Joel, That is the fork in the road... To battery-backup or to Not Battery-backup... That is question.
If you decide to battery-backup, then the SW is still sweet until it just dies. Any day now... You could switch to a Outback GVFX 3648 or XW 6048 and keep going battery-backup. If the fork is grid tie only, then I suggest Enphase. I have upgraded a customer via both routes. The Enphase was quite sweet using M190s with two panels in series to about 35 vmp. http://www.mavericksolar.net/enphase/kk/en_kk.htm I would not do both. Thank you, Maverick Maverick Brown BSEET, NABCEP Certified Solar PV Installer ® President & CEO Maverick Solar Enterprises, Inc. Office: 512-919-4493 Cell: 512-460-9825 Sent from my HondaJet! On Nov 9, 2011, at 4:21 PM, "Joel Davidson" <joel.david...@sbcglobal.net> wrote: > Hello Ray, > > He has had almost no utility power outages since he got his PV system in > 2001. By going batteryless, his dc-to-ac conversion efficiency and kWh > production should increase by over 15%. He has not decided if he wants to > keep the SW4048 and float charge his batteries with the grid for emergency > power. > > Joel Davidson > > ----- Original Message ----- From: "Ray Walters" <r...@solarray.com> > To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> > Sent: Wednesday, November 09, 2011 12:59 PM > Subject: Re: [RE-wrenches] What inverter? (was Faulty PM-60 circuit board) > > >> He doesn't want battery backup? >> >> Ray >> >> On 11/9/2011 10:33 AM, Joel Davidson wrote: >>> Wrenches, >>> >>> After telling my customer to upgrade to an MPPT charge controller (thanks >>> Ray Walters and John Blittersdorf), he decided to really optimize his PV >>> array and retire his Trace SW4048 inverter. He has 48 Siemens SP75 modules >>> (67.5 W DC PTC) that are ground mounted in full sun and easy to re-wire. >>> With so many new batteryless grid-tie inverters on the market, this is a >>> good time to ask this sage group with over 3,000 combined years of >>> experience what inverter do you prefer? >>> >>> Joel Davidson >>> >>> ----- Original Message ----- From: "Joel Davidson" >>> <joel.david...@sbcglobal.net> >>> To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> >>> Sent: Saturday, November 05, 2011 4:50 PM >>> Subject: Faulty PM-60 circuit board >>> >>> >>>> Wrenches, >>>> >>>> My customer has a circa 2001 Pulse PC250 with a faulty PM-60 circuit board >>>> TC-750, REV D2 (the microprocessor U1 has v2.5 and v1.01 written on a >>>> label on it). Does anyone repair or have replacements for PC250 PM-60 >>>> circuit boards? If not, what do you recommend? Thank you in advance for >>>> your help. >>>> >>>> Joel Davidson >>>> >>>> >>> >>> _______________________________________________ >>> List sponsored by Home Power magazine >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Options & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out participant bios: >>> www.members.re-wrenches.org >>> >>> >>> >>> >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Options & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
