It seems like I am being misunderstood. You can buy solar arrays each with its own MPP and inverter to produce 120VAC. You can buy one and add more over time with out consideration of string balancing and such.
You can tie them to the grid, and if your rate plan us good then you will be offsetting the cost of charging your EV with whatever the present size of your microinverter solar arrays is. <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sat, Jul 13, 2019 at 1:23 AM Lee Hart via EV <[email protected]> wrote: > Robert Bruninga via EV wrote: > > No, just because it produces 60 Hz AC does not make it a Microinverter. > > Anyone can make an inverter, They are dirt cheap from 1kw to 3 kW and > only > > cost about 15 cents a watt! You can buy a 2 kW "inverter" for not much > > more than $300. But that does not make it a Grid-Tie microinverer. > > > > A grid tie microinverter is a CURRENT SOURCE that pushes current against > an > > existing waveform It has to have an infinite load (the grid) or the > > voltage will soar out of sight if the load goes down. That is what > current > > sources do. Fundamental EE. > > Bob is right. People are being a bit loose with their definitions. > > A "microinverter" is just a small inverter. There are zillions of these. > > A normal inverter is one whose control circuits make it behave like a > voltage source. The inverter sets the output voltage and frequency at > (say 120vac 60hz). The load then draws whatever current it needs, from 0 > to the max power the inverter can handle. The inverter does its best to > hold the voltage at 120vac while supplying that current. > > A "grid tie" inverter is an inverter whose control circuits make it > behave like a current source. The *grid* sets the voltage and frequency; > the inverter just delivers its current. Without a grid, such an inverter > won't work. > > The power section of an inverter is the same, regardless of what type it > is. The differences are in the control circuitry. Generally, the power > section costs all the money. The control circuitry is cheap in comparison. > > > Sure, one can design a box that can do both, But that is a complex > > internal circuitry that does either one or the other, but they are > totally > > different circuits... > > Well, nowdays it's just a one-chip microcomputer that costs a few > dollars; no matter what kind of inverter you're building. > > -- > In software development, there are two kinds of error: Conceptual > errors, implementation errors, and off-by-one errors. (anonymous) > -- > Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- Michael E. Ross (919) 585-6737 Land (919) 901-2805 Cell and Text (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Tablet, Google Phone and Text <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190713/6340ff00/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
