Really good to hear & thanks Chris. I just installed this system at our new home that we will be showing as a demonstration home. I come from the late '80s days of PV and a 1 HP pump was a major no-no back when. *Windy passed along a soft start suggestion & I was going to put a time clock turning on from 10AM-2PM every day to utilize a fuller bank. I will look at the SOC option on the Radian, but it is 200+' away from the septic controller and conduit is in the ground. We have a HUP 2500 AHR/48-volt bank & 6,400 watt of PV tracked in a n-s canyon that limits the PV collection to 5 hours on a December day, that so far even running a 3/4 HP air compressor all day/every day-7 days a week has never dropped at night more than 5%.
---------------------------------------------------------------------------- Dana Orzel Great Solar Works, Inc. 208.721.7003 d...@solarwork.com Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 www.solarwork.biz "Responsible Technologies for Responsible People since 1988" Please consider the environment before printing this email. -----Original Message----- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Chris Mason Sent: Friday, October 27, 2017 5:51 AM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] Wattage 1/2 HP vs 1HP septic pumps What's the problem with the 1H pump you anticipate? We live on a 8KW Radian and it's very robust. We have load management relay system to handle the dryer, it's only allowed to work above 95% state of charge. Since your lift station has range, i.e., it doesn't have to work every minute of the day, you can control it so it works only during a SOC range or Time of Day range. You can also turn off other loads so there is enough power. If you run the lift pump during the night, there is less chance of a convection oven running at that time. Or mid morning when everyone is at work. Having time control or SOC control is very handy. On Wed, Oct 25, 2017 at 9:37 PM, Dana <d...@solarwork.com> wrote: > Ok all you whiz kids, bozos, & bolos: > > > > If I have a septic lift pump [off grid ouch] at 1HP/240 vac/8-amps to > meet all the usual state required overkill in septic design & a ½ > HP/240 vac/4.9-amp pump would do the same job but it will take 10% > more time to dose 800 gallons. > > Powered by an 8 KW Outback Radian inverter. > > From a load point of view and a 240-volt 3 phase wild AC well pump > limiting the overall surge and general wattage is the smartest move, > but; Which pump will use less overall power? We are using 240 volt to > utilize both inverters and drop the load on either half of the Radian > inverter. > > Is there a smarter lift pump to use? ECM motor? Permanent magnet? > > > > ------------------------------------------------------------ > ---------------- > > Dana Orzel Great Solar Works, Inc. > > 208.721.7003 d...@solarwork.com > > Idaho Contractor - # 028765 Idaho PV # 028374 > > NABCEP # 051112-136 www.solarwork.biz > > "Responsible Technologies for Responsible People since 1988" > > P Please consider the environment before printing this email. > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > 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 > > List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > -- Chris Mason NABCEP Certified Solar PV Installer™ Solar Design Engineer Generac Generators Industrial technician www.cometsolar.com <http://www.cometenergysystems.com> 264.235.5670 869.662.5670 Skype: netconcepts _______________________________________________ List sponsored by Redwood Alliance 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 List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/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: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
