I was just tasked with replacing two fried Conext MPPT 80 600 charge controllers, and after considering the cost, we just went with a Midnite AIO and upgraded the customer's whole system. It was dead easy and cleaned up a lot of unnecessary components. The customer is delighted. It was more expensive to go this way, but the added features and benefits were worth it, plus a new warranty on a line of equipment that is not discontinued.
Jason Szumlanski Principal Solar Designer | Florida Solar Design Group NABCEP Certified Solar Professional (PVIP) Florida State Certified Solar Contractor CVC56956 Florida Certified Electrical Contractor EC13013208 On Fri, Apr 25, 2025 at 10:02 AM Jay via RE-wrenches < [email protected]> wrote: > That may be, however it seems from my measuring the efficiency is way > higher than the fm-100 those things get wicked hot( losses). And the > conversion factor within the inverter from PV to Ac is much higher. > > Jay > > > > > > On Apr 25, 2025, at 7:29 AM, James Jarvis via RE-wrenches < > [email protected]> wrote: > > > The standby power consumption of one of those inverters is going to be a > lot more than three FM100 controllers. > > -James Jefferson Jarvis > APRS World, LLC > +1-507-454-2727 > http://www.aprsworld.com/ > > > On Fri, Apr 25, 2025 at 8:06 AM Blair May via RE-wrenches < > [email protected]> wrote: > >> I too am NOT excited about the AIO, seems like for off grid clients its a >> nightmare waiting to happen. Sol Ark ….running all your individual strings >> back to the inverter is to say the least a pain, w/ new systems but old >> upgrades? Victron does have Hi voltage & Hi current CCs as well as other >> Manus. All the BOS for replacing older CCs is already on the wall. >> Needless to say this white head still prefers redundancy. Tump >> >> >> On Apr 25, 2025, at 1:30 AM, William Miller via RE-wrenches < >> [email protected]> wrote: >> >> Friends: >> >> >> I need three FM100 charge controllers but it seems no one has them. It >> has occurred to me that for not much more than the cost of 3 FM100s I can >> buy a Fortress Envy 12K inverter and it will have the capability of 3 >> FM100s plus 12 kW of inverter plus compatibility with the existing Unigy >> battery bank plus future compatibility with Lithium batteries. The same >> applies for the Sol-Arc, and the Midnight AIO and probably others. >> >> >> Since my first Radio Shack separate amp and tuner, I have always favored >> a component approach to systems. With Outback apparently circling the >> drain or generally being unavailable, I am starting the see the appeal of >> the new AIO inverters. The AIOs have a wide voltage range on the MPPT >> inputs making stringing less problematic. >> >> >> I ordered a Sol-Arc 12K for my property to load shift and solve my NEM3 >> dilemma. With CTs on the service I can run my home on batteries from >> sun-down to sun-up and avoid being screwed by PG&E. >> >> >> It’s hard keeping up with all of the new technology but we are getting >> new tools to solve design problems. >> >> >> William >> >> >> Miller Solar >> 17395 Oak Road, Atascadero, CA 93422 >> 805-438-5600 >> www.millersolar.com >> CA Lic. 773985 >> >> >> >> >> >>
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