It has SCP. Dan Fink Adjunct Professor of Solar Energy Technology, Ecotech Institute IREC Certified Instructor™ for: ~ PV Installation Professional ~ Small Wind Installer Executive Director, Buckville Energy NABCEP Registered Continuing Education Providers™ 970.672.4342
On Mon, Jul 18, 2016 at 7:02 PM, Maverick Brown <[email protected]> wrote: > Dan > > Does it have System Control Panel (SCP)? If not, it's a must. > > It's like having an Outback inverter with no Mate or a big LCD TV with no > remote. > > Thank you, > > Maverick > > > Maverick Brown > > Maverick Solar Enterprises, Inc. > SunFlow Systems > Office: 512-919-4493 > Cell: 512-460-9825 > > Sent from an iPhone. > > On Jul 18, 2016, at 7:57 PM, Dan Fink <[email protected]> wrote: > > Thanks you for your help. I'm a poor off-grid guy. This should be a > learning experience then....the one time I visited the system around > 10:AM,, both CCs were in Bulk, and no grid blackout the night before. > Methinks I should also borrow a programming dongle from a colleague for > this one.... > > Dan Fink > Adjunct Professor of Solar Energy Technology, Ecotech Institute > IREC Certified Instructor™ for: > ~ PV Installation Professional > ~ Small Wind Installer > Executive Director, Buckville Energy > NABCEP Registered Continuing Education Providers™ > 970.672.4342 > > > > On Mon, Jul 18, 2016 at 6:27 PM, Maverick Brown < > [email protected]> wrote: > >> Dan >> >> Barring some non-factory-default settings, they are not likely running on >> battery power at night. >> >> When the grid is up, the inverter will go silent at night (asleep) [with >> --- three dashes on its LED display]. That's good. >> >> During the day, the inverter will "prevent" the battery voltage from >> going above its sell voltage (unless some other mode is on like Grid >> Support or Standby, etc.) The charge controllers will attempt to Absorb & >> Float, but the inverter will offload the energy by keeping the voltage at >> the Sell setting. I generally set Sell to the recommended Float Voltage++. >> I set the charge controller float to 1.0v higher and Absorb as appropriate. >> >> There is a lot more to unpack here. >> >> Flooded batteries will consume a good amount of power just to maintain >> float. >> >> As a defense against sulphated plates forming, I program the inverter EQ >> button for a heavy Absorb / mild EQ and instruct the customer to press it >> (every other month opposite month from watering??) >> >> Are you getting 20-25 kWh per day in production? >> >> PS having the inverter always feed the critical loads panel is exactly >> it's intended use. >> >> Thank you, >> >> Maverick >> >> >> Maverick Brown >> >> Maverick Solar Enterprises, Inc. >> SunFlow Systems >> Office: 512-919-4493 >> Cell: 512-460-9825 >> >> Sent from an iPhone. >> >> On Jul 18, 2016, at 6:50 PM, Dan Fink <[email protected]> wrote: >> >> Maverick; it's 6.0 kW of PV, 2 Midnite Classic 200s, Conext XW+ 5548, and >> 8 Crown Embassy VRSLA 6CEA390 for 390 amp-hours, 48v. Concerns me to be >> cycling those batteries every night when it's not supposed to happen as per >> the permit package. >> "Notes - Battery Backup: During an outage, an automatic transfer switch >> in the inverter opens the grid interconnect, isolating the inverter from >> the utility to prevent back-feeding the local power lines. The inverter >> then draws from the battery bank to provide AC power to the backup >> sub-panel. Battery power is only used to provide power to the backup >> sub-panel. The Battery inverter only sells energy to the grid from the >> solar array when available and not from the battery bank. The battery >> backup inverter is UL 1741 and IEEE 1547 compliant." >> >> Dan Fink >> Adjunct Professor of Solar Energy Technology, Ecotech Institute >> IREC Certified Instructor™ for: >> ~ PV Installation Professional >> ~ Small Wind Installer >> Executive Director, Buckville Energy >> NABCEP Registered Continuing Education Providers™ >> 970.672.4342 >> >> >> >> On Mon, Jul 18, 2016 at 5:23 PM, Maverick Brown < >> [email protected]> wrote: >> >>> Dan >>> >>> Does the inverter go silent at night? (---) on the inverter display? >>> >>> There are lots of settings that can influence sell amount. >>> >>> What type and size is the battery bank? >>> >>> What is the solar size? >>> >>> Thank you, >>> >>> Maverick >>> Cell: 512-460-9825 >>> >>> Sent from an iPhone. >>> >>> On Jul 18, 2016, at 5:56 PM, Dan Fink <[email protected]> wrote: >>> >>> Installer went out of business, all I have to troubleshoot with is an >>> as-built 3-line that "may or may not be right." The charge controllers are >>> a pair Midnite Classic 200s. Customer complained that system selling only >>> 2/3 of what was predicted back to the utility; that appears to be because >>> everything out of his critical loads subpanel is running off the battery >>> bank all night, every night, grid or no, so it takes 1/3 of the day to get >>> the batteries charged up again every day and start selling to the grid. >>> >>> I have very little experience with the XW+ thus my question for the >>> folks here. My plan for next week is to show up, make my own as-built >>> 3-line, and recommission the inverter. Anyone else seen this sort of thing >>> before? Hard to believe that an electrician would mis-wire or not wire the >>> bypass, I'm thinking software setting. >>> >>> >>> Dan Fink >>> Adjunct Professor of Solar Energy Technology, Ecotech Institute >>> IREC Certified Instructor™ for: >>> ~ PV Installation Professional >>> ~ Small Wind Installer >>> Executive Director, Buckville Energy >>> NABCEP Registered Continuing Education Providers™ >>> 970.672.4342 >>> >>> >>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> List Address: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/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: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/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: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/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: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/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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