Hello, Gary & All~ Cybo Energy is one of those rare companies where one can actually speak with the top guy. George Cheng, PhD, is their resident genius & communications with him are prompt & pleasant. I really appreciate that top level access.
+1 to Cybo for innovation--they keep boldly taking their Cybo micro inverter line into new territory & carrying the UL listing with them. Running motorized loads on a "sun direct" basis always seemed a bit of a stretch because of pesky things like motor startup surge & inductive loading...so my only experience has been with their water heating type inverters where the resistive load always has a power factor of one. -1 to Cybo for not having a crazy long warranty to match other micro inverters, but Dr. Cheng is persuaded that would put them in a high risk situation. He's probably right about that because--hey--25 years is a long time. Around 2013, I was an early adopter on their water heating inverter. I mounted it indoors so there would be no heat loading on the case & I had to be very creative to contain the insulated wiring. I also was careful with ohm's law when choosing the resistive load (sending heat to an aquaculture tank) & I vetted the load resistance with George. The unit failed...& it seems like that was less than a year after initial power-up; George replaced it with their improved version but that also failed after a couple of years & the company was not willing to stand for another replacement. George told me that the unit had been re-designed again; to him that meant we should be happy to pay again because it's so much better. To me that meant the R & D was being done on the customer's nickel & my client declined to buy another one. I had paired it with four 60 cell LG Neons--around 330 watts each in that era. George told me that their early components were suffering due to the input DC voltage but he says now they're OK even for 72 cell modules. I have no other sales opportunities for it these daze, however, so someone else needs to try it & report back to the list after a few years. Telltale sign for the power pioneers: they're the ones with the arrows in their backs. On a brighter note: The Wrench List is the Bomb! Mick Abraham, Proprietor www.abrahamsolar.com Landline: 970-731-4675 Cell phone or for text messaging: 970-946-6584 ᐧ
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